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L2 / L3 Switches Internet Protocol IPv6 Configuration

1. Supermicro L2 L3 Switches Configuration Guide le and a destination Upper layer 6 TCP Headers inside a packet to transport the data The two headers main transport protocols are TCP and UDP 17 UDP 1 1 3 IPv6 Tunnel Because most networks use the IPv4 protocol IPv6 networks currently require a way to communicate outside their borders IPv6 networks use tunnels for this purpose In most IPv6 tunneling scenarios the outbound IPv6 packet is encapsulated inside an IPv4 packet The boundary router of the IPv6 network sets up a point to point tunnel over various IPv4 networks to the boundary router of the destination IPv6 network The packet travels over the tunnel to the destination network s boundary router which decapsulates the packet Then the router forwards the separate IPv6 packet to the destination node 1 1 4 Neighbor Discovery Protocol Neighbor Discovery permits nodes on the same link to advertise their existence to their neighbors and to learn about the existence of their neighbors Neighbor Discovery is built on top of Internet Control Message Protocol version 6 ICMPv6 Neighbor Discovery uses router advertisement messages to detect neighbors advertise IPv6 prefixes address provisioning and share link parameters such as MTU hop limit advertisement intervals and lifetime Neighbor Discovery uses the following message types Router Advertisement RA Messages sent to announce the presence of the rou
2. Shared tree Receivers G Intermediate Router Figure IPv6 5 Multicast Forwarding with PIM SM PIM SM uses unicast routing protocols like OSPF RIP etc to perform a reverse path forwarding RPF check to determine the upstream neighbors to source and or RP An RPF check helps to eliminate loops in multicast tree formations wherein the forwarding decision for a received packet is done based on the source address in the packet rather than destination address If a router has a route entry to the source address in the packet e an upstream router the packet is forwarded as an RPF check passes Otherwise the packet is dropped as an RPF check failure PIM Sparse Mode builds a shared tree or RPT with a root called a Rendezvous Point RP A Candidate RP CRP is then configured for every group by using a Bootstrap Router BSR mechanism CRP is populated Supermicro L2 L3 Switches Configuration Guide as an RP set across the domain After receiving the RP set every router performs a uniform hashing to elect one RP from the RP set for every group Receivers interested in particular multicast group data from any source send a G join to the upstream neighbor that is towards the router that was elected as the RP for the particular group The last hop DR can choose to receive multicast data directly from each source for that group instead of from the RP In this case the last hop DR sends a S G join upstream towards the source
3. The command no ipv6 neighbor lt prefix gt vlan lt id gt tunnel lt id gt lt MAC ADDRESS XX XX XX XX XX XX gt deletes static entries from the IPv6 neighbor cache table The command ipv6 nd suppress ra suppresses router advertisements Supermicro L2 L3 Switches Configuration Guide 1 2 4 Con The example switch B The command no ipv6 nd managed config flag specifies that the host should NOT use DHCP for address configurations The command no ipv6 nd other config flag specifies that the host should NOT use DHCP for other address configurations The command no ipv6 hop limit resets the hop limit to its default value of 1 for all IPv6 packets originating from the interface The command no ipv6 nd dad attempts resets the duplicate address detection attempts to its default value of 1 The command no ipv6 nd reachable time resets the advertised reachability time to its default value of 30 The command no ipv6 nd retrans time resets the advertised retransmit time to its default value of 1 The command no ipv6 nd ra interval resets the IPv6 router advertisement interval to its default value of 600 The command no ipv6 nd prefix lt prefix addr gt lt prefix len gt default removes the prefix from the IPv6 router advertisement figuration Example below shows the commands used to enable IPv6 between two switches switch A and Configuration on s
4. IPv6 Prefix the IPv6 address prefix of the range Prefix Length the prefix length of the address range allowAll when set to allowAll and the associated ArealD is 0 0 0 0 aggregated type 5 LSAs are generated for the specified range In addition aggregated type 7 LSAs are generated in all the attached NSSAs for the specified range denyAll when set to denyAll neither Type 5 nor type 7 LSAs are generated for the specified range advertise when set to advertise and the associated areald is 0 0 0 0 aggregated type 5 LSAs are generated Otherwise if the associated ArealD is x x X X other than 0 0 0 0 then an aggregated type 7 LSA is generated in NSSA area x x x x not advertise when set to doNotAdvertise and the associated areald is 0 0 0 0 a type 5 LSA is not Supermicro L2 L3 Switches Configuration Guide jaa generated for the specified range while all the NSSA LSAs within this range are flushed out and an aggregated type 7 LSA is generated in all attached NSSAs If the associated ArealDis x x x x other than 0 0 0 0 a type 7 LSA is not generated in NSSA x x x x for the specified range Translation when set to enabled the P Bit is set in the generated type 7 LSA When set to disabled the P Bit is cleared in the generated type 7 LSA for the range Step 15 redistribute static connected ripng bgp Configures the protocol from which the routes have to be redistributed into O
5. 1 entries Codes C Connected S Static Supermicro L2 L3 Switches Configuration Guide O OSPF R RIP B BGP C 3333 64 1 1 via vian10 1 3 4 RIPng Routing Information Protocol RIP is a distance vector routing protocol that uses the hop count the number of routers to determine the best way shortest path to a remote network RIP sends the complete routing table out to all active interfaces every 30 seconds RIP is a widely used protocol for managing router information within a self contained network such as a corporate local area network LAN or an interconnected group of such LANs RIP is considered an effective solution for small homogeneous networks It is not suited for larger more complicated networks since the transmission of the entire routing table every 30 seconds increases network traffic IPv6 RIP known as RIP Next Generation RIPng functions the same as RIP in IPv4 RIP enhancements for IPv6 includes e support for IPv6 addresses and prefixes e use of the all RIP routers multicast group address FFO2 9 as the destination address for RIP updates messages e Pv6 RIP process maintains a local routing table referred to as a Routing Information Database RIB The IPv6 RIP RIB contains a set of the best cost IPv6 RIP routes learned from all its neighboring networking devices If IPv6 RIP learns the same route from two different neighbors but with different costs it will store only the lowest cost route
6. Every time a network change occurs the CPU on a router is interrupted and a new OSPF tree is calculated Running the shortest path first SPF algorithm itself is not CPU intensive but sending and flooding the network with new topological information is extremely CPU intensive Areas are identified through a 32 bit area ID expressed in dotted decimal notation All OSPF areas must be connected to the backbone in case of network failure When an area cannot reside physically or logically on the backbone a virtual link is required There are four types of areas used in OSPF e Backbone Area alternate name for Area 0 This includes all the ABRs and internal routers of the backbone area The backbone is a hub for inter area transit traffic and the distribution of routing information between areas Inter area traffic is routed to the backbone then routed to the destination area and finally routed to the destination host within the destination area Routers on the backbone also advertise the summarized routes within their areas to the other routers on the backbone The backbone area helps avoid routing loops as it is the trunk of the network e Regular Area non backbone area with both internal and external routes e Stub area an area that contains a single exit point Areas that reside on the edge of the network with no exit point except one path are termed a stub area Supermicro L2 L3 Switches Configuration Guide e Not So Stubb
7. configured on an interface 1 2 3 Neighbor Discovery Protocol Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 ipv6 neighbor lt prefix gt vlan lt id gt Optional Configures a static entry in tunnel lt id gt lt MAC ADDRESS xx xx xx xx xx xx gt the IPv6 neighbor cache Step 3 Create a Layer 2 VLAN and add all required ports For details on configuring a Layer 2 VLAN refer to the VLAN Config guide at www supermicro com Step 4 interface vlan lt vlan id 1 4069 gt lt interface Enters the Layer 3 interface type gt lt interface id gt configuration mode NOTE This command is also applicable to VLANs and Routed Physical Interfaces Refer to IP Config guide at www supermicro com Step 5 ipv6 enable Enables IPv6 on the VLAN Step 6 ipv6 address lt prefix gt lt prefix Len gt unicast Configures an IPv6 address to create a anycast eui64 ipv6 address lt prefix gt link local Layer3 VLAN Configures an IPv6 link local address on an interface prefix IPv6 prefix for the interface prefix len IPv6 prefix length unicast Unicast type of prefix anycast Anycast type of prefix eui64 Type of prefix where the latter 64 bits are formed from the MAC address link local Type of address The prefix length for an eui64 type Supermicro L2 L3 Switches Configuration Guide must be 64 Step 7 no
8. ff02 1 ff00 1122 ff02 1 ffe3 70bc MTU is 1500 ICMP redirects are enabled ND DAD is enabled Number of DAD attempts 1 ND router advertisement is enabled ND reachable time is 100 seconds ND retransmit time is 1 seconds ND router advertisements are sent every 600 seconds SMIS show ipv6 neighbors IPv6 Address Age Link layer Addr State Interface fe80 230 48ff fee3 475 0 00 30 48 e3 04 75 Stale vlan10 SMIS show ipv6 route IPv6 Routing Table 1 entries Codes C Connected S Static O OSPF R RIP B BGP C 3333 64 1 1 via vlan10 SMIS show ipv6 route summary IPv6 Routing Table Summary 1 entries 1 Connected 0 Static 0 RIP 0 BGP 0 OSPF Number of prefixes 64 1 SMIS show ipv6 route summary IPv6 Routing Table Summary 1 entries Supermicro L2 L3 Switches Configuration Guide 1 Connected 0 Static 0 RIP 0 BGP 0 OSPF Number of prefixes 64 1 SMIS show ipv6 traffic IPv6 Statistics FK K K K K K K K K K K K K K K Rcvd 0 HdrErrors 0 TooBigErrors AddrErrors O FwdDgrams 0 UnknownProtos Discards 8 Delivers 7 OutRequests OutDiscards 0 OutNoRoutes 0 ReasmReqds ReasmOKs 0 ReasmfFails FragOKs O FragFails O FragCreates RevdMCastPkt 7 SentMcastPktsO TruncatedPkts RevdRedirects 0 SentRedirects ICMP Statistics K K K K K K K K K K K K K K K 9Q O OC C OS OO O Received ICMPPkts OICMPErrPkt 0 DestUnreach 0 TimeExcds ParmProbs 0 PktTooBigMsg OICMPEchoReq O ICMPEchoReps RouterSols 6 RouterAd
9. the State of California USA The State of California County of Santa Clara shall be the exclusive venue for the resolution of any such disputes Super Micro s total liability for all claims will not exceed the price paid for the hardware product FCC Statement This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the manufacturer s instruction manual may cause harmful interference with radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case you will be required to correct the interference at your own expense California Best Management Practices Regulations for Perchlorate Materials This Perchlorate warning applies only to products containing CR Manganese Dioxide Lithium coin cells Perchlorate Material special handling may apply See http www dtsc ca gov hazardouswaste perchlorate for further details Manual Revision 1 0 Release Date December 12 2013 Unless you request and receive written permission from Super Micro Computer Inc you may not copy any part of this document Information in this document is subject to
10. vlan 10 SMIS config vlan ports Gi 0 21 untagged SMIS config vlan exit SMIS config interface vlan 10 SMIS config if ipv6 enable SMIS config if ipv6 pim componentld 50 SMIS config if ipv6 address 7777 33 64 SMIS config if ipv6 pim bsr candidate 200 SMIS config if ipv6 pim dr priority 500 SMIS config if exit SMIS config ip pim component 50 SMIS pim comp ipv6 pim rp static rp address ff02 e001 1 128 7777 33 SMIS pim comp end SMIS show ipv6 pim bsr PIMv2 Bootstrap Configuration For Component 1 Elected BSR for Component 1 Supermicro L2 L3 Switches Configuration Guide V6 BSR Address V6 BSR Priority O Hash Mask Length 126 Elected BSR for Component 50 V6 BSR Address 7777 33 V6 BSR Priority 200 Hash Mask Length 126 This System is V6 Candidate BSR for Component 50 V6 BSR Address 7777 33 V6 BSR Priority 200 SMISH show ipv6 pim neighbor Neighbour IfName ldx Uptime Expiry Ver DRPri Mode Compld Override Lan Address Interval Delay fe80 230 48ff fee3 70bcvlan10 504 00 14 54 86 v2 1 S 50 0 0 SMIS show ipv6 pim component PIM Component Information Component ld 1 PIM Mode sparse PIM Version 2 Elected BSR Candidate RP Holdtime 0 Component ld 50 PIM Mode sparse PIM Version 2 Elected BSR 7777 33 Candidate RP Holdtime 0 SMIS show ipv6 pim interface Address IfName Ver Mode Nbr Qry DR Address DR Prio Count Interval fe80 230 48ff fee3 475vlan10 2 Sp
11. 0 0 Area Type NORMAL AREA Spf Calculation 12 times Area Bdr Rtr Count 0 As Bdr Rtr Count 1 Area Summary Send Summary SMIS show ipv6 ospf border routers OSPFv3 Process Border Router Information Destination Type NextHop Cost RtType Area ld 10 10 10 1 ASBR fe80 230 48ff fee3 475 200 intraArea 0 0 0 0 SMISH write startup config Building configuration Please wait May take a few minutes OK SMISH show running config Building configuration Switch ID Hardware Version Firmware Version 0 SBM GEM X3S B4 01 1 0 14 7 vlan 1 ports gi 0 1 21 untagged ports gi 0 23 24 untagged ports ex 0 1 3 untagged exit Supermicro L2 L3 Switches Configuration Guide vlan 10 ports gi 0 22 untagged exit interface vlan 10 ip address 10 10 10 2 255 0 0 0 exit interface vlan 10 ipv6 enable ipv6 address 3333 1122 64 unicast ipv6 address fe80 230 48ff fee3 470 link local ipv6 nd prefix 3333 64 exit ipv6 router ospf router id 10 10 10 2 ASBR Router redistribute connected exit interface vlan 10 ipv6 ospf area 0 0 0 0 ipv6 ospf transmit delay 10 ipv6 ospf metric 200 ipv6 ospf network point to point exit 1 4 IP Multicast IP communication may be one of three types e Unicast host sends packets to a single host e Broadcast host sends packets to all hosts e Multicast host sends packets to a subset of hosts simultaneously IP multicast routing enables efficient use of network resources for bandwi
12. 1122 64 unicast ipv6 address fe80 230 48ff fee3 470 link local ipv6 nd prefix 3333 64 exit ipv6 router rip redistribute connected exit 1 3 5 0SPFv3 OSPFv3 adds support for IPv6 in the OSPF routing protocol A hello packet is sent out on an OSPF enabled interface to discover other OSPFv3 neighbor routers Once a neighbor is discovered the two routers compare information in the Hello packet to determine if they have compatible configurations Adjacent routers share link state advertisements LSAs that include information about the operational state of each link the cost of the link and any other neighbor information When all OSPFv3 routers have identical link state databases the network is said to be converged OSPFv3 networks can be divided into separate areas Routers send most LSAs to one area only which reduces the CPU and memory requirements for an OSPF enabled router 1 3 5 1 Comparison of OSPFv3 and OSPFv2 Much of the OSPFv3 protocol is the same as in OSPFv2 OSPFv3 is described in RFC 2740 The key differences between the OSPFv3 and OSPFv2 protocols are as follows e OSPFv3 expands on OSPFv2 to provide support for IPv6 routing prefixes and the larger size of IPv6 addresses e LSAs in OSPFv3 are expressed as a prefix and prefix length instead of an address and mask e The router ID and area ID are 32 bit numbers with no relationship to IPv6 addresses Supermicro L2 L3 Switches Configuration Guide e OSPFv3
13. M 75 nn oo 32 bits Figure IPv6 1 IPv6 Header Format The IPv6 packet header fields are listed in the table below Field Description Version Similar to the IPv4 packet header except that the field lists number 6 for IPv6 instead of number 4 for IPv4 Traffic Class Similar to the IPv4 packet header The Traffic Class field tags packets with a traffic class that is used in differentiated services Flow Label New field in the IPv6 packet header The Flow Label field tags packets with a specific flow that differentiates the packets at the network layer Payload Similar to the Total Length field in the IPv4 packet header The Supermicro L2 L3 Switches Configuration Guide le Length Payload Length field indicates the total length of the data portion of the packet Next Header Similar to the IPv4 packet header The value of the Next Header field determines the type of information following the basic IPv6 header for example a TCP or UDP packet or an Extension header Hop Limit Similar to the Time to Live field in the IPv4 packet header The value of the Hop Limit field specifies the maximum number of routers that an IPv6 packet can pass through before the packet is considered invalid Each router decrements the value by one Because no checksum is in the IPv6 header the router can decrement the value without needing to recalculate the checksum which saves processing resources Source Similar to
14. age value that is set to zero by the originating switch and increased by every switch during flooding The common types of LSA are Type 1 Router LSA which contains router ID and link information Type 2 Network LSA which contains DR and broadcast segment details Type 3 Network Summary LSA which is originated by ABR only and contains metric and subnet information Supermicro L2 L3 Switches Configuration Guide Type 4 ASBR Summary LSA which is originated by ABR only and advertised to ASBR Contains router ID mask and metric Type 5 AS external LSA which is originated by ASBR and contains external route and default route information 1 3 5 4 Area An OSPF area is defined as a logical grouping of routers by a network administrator OSPF routers in any area contain same topological view which is also known as the OSPF database of the network OSPF is configured in multiple areas in order to reduce routing table sizes which in turn reduces the topological database and switch CPU memory requirements OSPF is not just configured in one large area so all routers share the same topological database The use of multiple areas ensures that the flooding and database management required in large OSPF networks is reduced within each area so that the process of flooding the full database and maintaining full network connectivity does not consume a large portion of the CPU processing power and network bandwidth
15. arbitrary group of receivers that wants to receive a particular data stream This group has no physical or geographical boundaries receivers can be located anywhere on the Internet or in any private network Receivers that are interested in receiving data flowing to a particular group must join the group by signaling their local device This signaling is achieved with the MLD protocol Devices use the MLD protocol to learn whether members of a group are present on their directly attached subnets Hosts join multicast groups by sending MLD report messages The network then delivers data to a potentially unlimited number of receivers using only one copy of the multicast data on each subnet IPv6 hosts that wish to receive the traffic are known as group members Supermicro L2 L3 Switches Configuration Guide An IPv6 multicast address is an IPv6 address that has a prefix of FFOO 8 1111 1111 An IPv6 multicast address is an identifier for a set of interfaces that typically belong to different nodes A packet sent to a multicast address is delivered to all interfaces identified by the multicast address 1 4 1 1 PIM SM Basics PIM Sparse Mode operates on the basis that very few or sparse receivers intend to receive multicast data from each source In PIM SM multicast data is forwarded only on branches with at least one interested receiver Source Last Hop DR Source tree First Hop DR AE S G x y Shared tree G
16. below to change the LAN prune delay on any interface Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 interface vlan lt vlan id gt lt interface type gt Enters the layer 3 interface lt interface id gt configuration mode NOTE This command is also applicable to VLANs and routed physical interfaces Refer to the IP Config Guide at www supermicro com Step 3 set ipv6 pim lan prune delay enable disable Enables or disables the LAN prune delay configuration ip pimv6 lan delay lt value 0 65535 gt Configures the LAN prune delay value This delay is enabled by default The LAN prune delay value can be any number from 0 65535 Default is 0 Step 4 end Exits the configuration mode Supermicro L2 L3 Switches Configuration Guide ES Step 5 show ipv6 pim interface Vlan lt vlan id gt detail Displays the LAN prune delay H information for the given interface Step 6 write startup config Optional step saves this PIM configuration to be part of the startup configuration O The no ipv6 pim lan delay command resets the LAN delay to its default value of 0 1 4 1 12 1 3 Override Interval The join prune override interval is used in a multi access network by downstream routers After sending a prune message in a multi access LAN the downstream router waits for the override interval period to send a second prune message if
17. enable OSPFv3 for IPv6 on an interface Step 7 ipv6 ospf neighbor lt IPv6 Address gt priority To configure OSPFv3 routers lt Number gt interconnected to nonbroadcast networks Pre requisites for neighbor establishment e Demand circuit should be disabled e Network type should be point to point Step 8 ipv6 ospf neighbor probe retransmit limit Sets the number of consecutive LSA lt retrans limit gt retransmissions before the neighbor is deemed inactive Step 9 ipv6 ospf demand circuit Configures OSPF to treat the interface as an OSPF demand circuit Step 10 ipv6 ospf retransmit interval lt interval gt Specifies the time between link state Supermicro L2 L3 Switches Configuration Guide Las advertisement LSA retransmissions for adjacencies belonging to the interface Range is 1 65535 Step 11 ipv6 ospf transmit delay lt delay gt Optional Configures the estimated time it takes to transmit a link state update packet on the interface Range is 1 1800 Step 12 ipv6 ospf priority lt priority gt Optional Configures the router priority Range is 1 255 Step 13 ipv6 ospf hello interval lt interval gt Optional Specifies the interval between the hello packets sent on the interface Range is 1 65535 Step 14 ipv6 ospf dead interval lt interval gt Optional Configures the interval in which hello packets must not be seen before neighbors declare the router down Range i
18. in the local RIB 1 3 4 1 Metric RIP uses a single routing metric hop count to measure the distance between the source and a destination network Each hop in a path from source to destination is assigned a hop count value which is typically 1 When a router receives a routing update that contains a new or changed destination network entry the router adds 1 to the metric value indicated in the update and enters the network in the routing table RIP routing is limited to 15 hops A metric of 16 hops identifies unreachable network 1 3 4 2 Split Horizon Routers connected to broadcast type IP networks use the splithorizon mechanism to reduce routing loops especially when links are broken A split horizon blocks information about routes from being advertised by a router on any interface from which that information originated Supermicro switches support the following two mechanisms that help ensure the reachability of routes Supermicro L2 L3 Switches Configuration Guide 1 3 4 3 Passive Interface Split horizon this mechanism omits routes learned from a neighbor in updates sent to that neighbor Split horizon minimizes routing overhead but may cause slower convergence Split horizon with poison reverse this mechanism includes routes learned from a neighbor in updates sent to that neighbor However it sets the metric to 16 to which avoid looping Poison reverse speeds up convergence but increases routing overhead Passive interfaces
19. ipv6 nd suppress ra Enables an IPv6 router advertisement Step 8 ipv6 nd managed config flag Optional Sets the managed config flag which allows the host to use DHCP for address configuration Step 9 ipv6 nd other config flag Optional Sets the other config flag which allows the host to use DHCP for other stateful configurations Step 10 ipv6 hop limit lt HopLimit 1 255 gt Optional Configures maximum hop limit for all IPv6 packets originating from the interface Range is 1 255 Step 11 ipv6 nd ra lifetime lt LifeTime 0 9000 gt Optional Sets the IPv6 Router Advertisement RA lifetime Range is 0 9000 NOTE The RA lifetime value must be greater than or equal to the RA interval Step 12 ipv6 nd dad attempts lt no of attempts 1 10 gt Optional Sets Duplicate Address Detection attempts Range is 1 10 Step 13 ipv6 nd reachable time lt Reachable Time 0 Optional Sets advertised reachability 3600 gt time Range is 0 3600 Step 14 ipv6 nd retrans time lt Retrans Time 1 3600 gt Optional Sets advertised retransmit time Range is 1 3600 Step 15 ipv6 nd ra interval lt interval 3 1800 gt Sets the lpv6 router advertisement interval Step 16 ipv6 nd prefix lt prefix addr gt lt prefixlen gt Optional Configures the prefix to be default lt valid lifetime gt infinite at lt var advertised in the IPv6 router valid lifetime gt lt preferred lif
20. it still continues to receive data due to other routers in the LAN that still want to receive multicast data In a multi access LAN the override interval ensures multicast data is forwarded only if there is at least one router with receivers interested in a particular group In this way the multi access LAN is not unnecessarily flooded with data The default override interval is 0 seconds Supermicro switches provide flexibility for users to configure different join prune override intervals on different interfaces Follow the steps below to configure the override interval Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 interface vlan lt vian id gt lt interface type gt Enters the layer 3 interface lt interface id gt configuration mode NOTE This command is also applicable to VLANs and routed physical interfaces Refer to the IP Config Guide at www supermicro com Step 3 Ipv6 pim override interval lt interval 0 65535 gt Configures the PIM override interval value The override interval value can be any number from 0 65535 Default is O Step 4 end Exits the configuration mode Step 5 show ipv6 pim interface Vlan lt vlan id gt detail Displays the override interval Supermicro L2 L3 Switches Configuration Guide H information for the given interface Step 6 write startup config Optional step saves this PIM confi
21. non broadcast multi access neighbor This value is much larger than the hello interval The poll interval does not apply to point to multipoint interfaces 1 3 5 13 Virtual Link In OSPF all areas must be connected to a backbone area A virtual link can be configured in case of a backbone continuity break by configuring two area border routers as endpoints of a virtual link Configuration information includes the identity of the other virtual endpoint the other ABR and the Supermicro L2 L3 Switches Configuration Guide non backbone link that the two routers have in common the transit area Virtual links cannot be configured through a stub area 1 3 5 14 Passive Interface The passive interface command disables OSPF hellos from being sent out thus disabling the interface from forming adjacencies on that interface 1 3 5 15 Demand Circuit A demand circuit is a point to point connection between two neighboring interfaces configured for the OSPF Demand circuits increase the efficiency of OSPFs on the configured interfaces by stopping the periodic transmission of such OSPF packets as hello and LSA OSPFs can establish a demand link to form an adjacency and perform initial database synchronization The adjacency remains active even after layer 2 of the demand circuit goes down 1 3 5 16 Network Type Internet network types are dependent on the layer 2 technology used such as Ethernet point to point T1 circuit and frame relay The var
22. of link state advertisements in a given area is identified by the router ID This ID has the form of an IP address and can be either automatically or manually defined 1 3 5 10 Priority In multi access networks the router with the highest priority value is chosen as the DR which acts as the central point of exchange for LSAs Supermicro switches provide OSPF DR priority configuration 1 3 5 11 Route Summarization Route summarization is the consolidation of advertised addresses into a single summary route to be advertised by other areas Summarization occurs using the LSA type 4 packet or by the ASBR OSPFs can be configured in two ways to summarize networks e Inter area summarization creating type 3 or 4 LSAs e External summarization with type 5 LSAs 1 3 5 12 Timers Supermicro switches provide configuration OSPFv3 timers e SPF Timer the delay time between when OSPF receives a topology change and when it starts the shortest path first SPF calculation and the hold time between two SPF calculations e Hello Interval specifies the interval between the hello packets sent on the interface The hello interval value must be the same for all routers attached to a common link e Neighbor Probe Interval specifies the time interval between consecutive neighbors probing e Poll Interval specifies an unsigned integer value reflecting the poll interval that is the larger time interval in seconds between the hello packets sent to an inactive
23. rp candidate rp address Address gt lt Group Mask gt lt IP address gt lt Group Configures the candidate RP value Group Address Group Mask This combination can specify any IP multicast address from 224 0 0 0 to 239 255 255 255 IP Address should be any interface IPv6 address of the component Link local IPv6 addresses cannot be used for this purpose Step 4 end Exits the configuration mode Step 5 show ipv6 pim rp candidate Componentlid lt 1 255 gt show ipv6 pim rp set rp address Displays the candidate RP information for the given interface Displays the RP set information Supermicro L2 L3 Switches Configuration Guide EN Step 6 write startup config Optional step saves this PIM configuration to be part of the startup configuration The no ipv6 pim rp candidate command deletes the candidate RP information of the particular PIM component 1 4 1 12 2 3 Static RP An RP for a group range can be configured statically on a router instead of using a BSR mechanism However using this mechanism requires configuring static a RP on all routers in the PIM domain This configuration can be useful to specify a backup RP for a particular group Supermicro switches provide flexibility for users to configure static RP differently on different components Follow the steps below to configure static RP Step Command Description Step 1 configure terminal Enters t
24. the Source Address field in the IPv4 packet header except Address that this contains a 128 bit source address for IPv6 Destination Similar to the Destination Address field in the IPv4 packet header Address except that the field contains a 128 bit destination address for IPv6 Following the basic IPv6 packet header are optional extension headers and the data portion of the packet If present each extension header is limited to 64 bits There is no limit to the number of extension headers in an IPv6 packet Each extension header is identified by the Next Header field of the previous header The extension header types and their Next Header field values are mentioned in the table below Next Header Header Type Value Description Hop by hop 0 Header that is processed by all hops in the path of a options packet If present the hop by hop options header header always follows immediately after the basic IPv6 packet header Destination 6 Header that can follow any hop by hop options header options The header is processed at the final destination and at header each visited address specified by a routing header The destination options header is processed only at the final destination Routing 43 Header that is used for source routing header Fragment 44 Header that is used in each fragment when a source header fragments a packet that is larger than the Maximum Transmission Unit MTU for the path between itself
25. the enterprise or organization Private or RFC 1918 address space 10 0 0 0 8 172 16 0 0 12 192 168 0 0 16 fe80 10 Example fe80 200 5aee feaa 20a2 Link Local Addresses These addresses are used on a single link or a non routed common access network such as an Ethernet LAN Link local addresses may appear as the source or destination of an IPv6 packet Routers must not forward IPv6 packets if the source or destination contains a link local address 169 254 0 0 16 2002 16 Example 2002 cb0a 3cdd 1 1 6to4 A 6to4 gateway adds its IPv4 address to this 2002 16 creating a unique 48 prefix There is no equivalent but 192 88 99 0 24 has been reserved as 6to4 relay anycast address prefix Supermicro L2 L3 Switches Configuration Guide le 1 1 2 IPv6 Header The IPv6 header format is similar to IPv4 header fields Even though IPv6 addresses are four times longer than IPv4 addresses the IPv6 header is only twice the size of the IPv4 header The IPv6 packet header has 8 fields with a size of 40 octets 320 bits Fragmentation is handled by the source of a packet and checksums at the data link layer and transport layer Supermicro L2 L3 Switches Configuration Guide Version Traffic Class Flow Label Payload Length Next Header Hop Limit 40 octets D Destination Address Next Header Extension Header Information Variable Length Data Portion lt
26. uses link local IPv6 addresses for neighbor discovery and other features e OSPFv3 redefines LSA types 1 3 5 2 Neighbor amp DR OSPF routers exchange hellos with neighboring routers and in the process learn their neighbor s Router ID RID and cost These values are then stored in the adjacency table Supermicro switches establish OSPF adjacencies between all neighbors on a multi access network such as Ethernet This ensures all routers do not need to maintain full adjacencies with each other The Designated Router DR is selected based on the router priority In a tie the router with the highest router ID is selected A backup DR is a router designed to perform the same functions in case the DR fails 1 3 5 3 LSA Once a router has exchanged hellos with its neighbors and captured router IDs and cost information it begins sending LSAs or Link State Advertisements The link state is the information shared between directly connected routers This information propagates throughout the network unchanged and is also used to create a shortest path first SPF tree The OSPF standard defines a number of LSA types Unlike distance vector protocols for example RIP the OSPF does not actually send its routing table to other routers Instead it sends the LSA database and derives the IP routing table from LSAs In order to avoid an LSA storm each LSA has a sequence number that is incremented only if the LSA has changed Each LSA also has an
27. 0 secs Exit Overflow Interval 0 Ref BW 100000 Ext Lsdb Limit 1 Trace Value 0x00000800 As Scope Lsa 0 Checksum Sum 0x0 Demand Circuit Enable Passive Interface Disable Nssa Asbr Default Route Translation Disable Number of Areas in this router 1 Area 0 0 0 0 Number of interfaces in this area is 1 Number of Area Scope Lsa 1 Checksum Sum 0x47d6 Number of Indication Lsa 0 SPF algorithm executed O times SMIS show ipv6 ospf neighbor ID Pri State DeadTime Address 10 10 10 1 1 FULL PTOP 35 fe80 230 48ff fee3 475 SMIS show ipv6 ospf route OSPFV3 Process Routing Table Dest Prefix Length NextHop Ifindex Cost Rt Type Area 3333 64 B vlan10 200 intraArea 0 0 0 0 SMIS show ipv6 ospf interface Supermicro L2 L3 Switches Configuration Guide OSPFv3 Interface Information Interface Name vlan10 Interface Id 504 Area Id 0 0 0 0 Local Address fe80 230 48ff fee3 470 Router Id 10 10 10 2 Network Type PTOP Cost 200 State PTOP Designated Router Id 0 0 0 0 local address null Backup Designated Router Id 0 0 0 0 local address null Transmit Delay 10 sec Priority 1 IfOptions 0x0 Timer intervals configured Hello 10 Dead 40 Retransmit 5 Poll 120 Demand Circuit Disable Neighbor Probing Disable Nbr Probe Retrans Limit 10 Nbr Probe Interval 120 Hello due in 4 sec Neighbor Count is 1 Adjacent with neighbor 10 10 10 1 SMIS show ipv6 ospf areas OSPFV3 AREA CONFIGURATION INFORMATION Areald 0 0
28. 475vlan10 505 00 19 54 79 v2 500 S 50 0 0 SMIS show ipv6 pim bsr PIMv2 Bootstrap Configuration For Component 1 Elected BSR for Component 1 V6 BSR Address V6 BSR Priority O Hash Mask Length 126 Elected BSR for Component 50 V6 BSR Address 7777 33 V6 BSR Priority 200 Hash Mask Length 126 SMIS show ipv6 pim rp candidate Compld GroupAddress PrefixLength RPAddress Priority 50 ff02 e001 0 128 7777 11 192 SMIS write startup config Building configuration Please wait May take a few minutes OK SMISH show running config Building configuration Switch ID Hardware Version Firmware Version 0 SBM GEM X3S B4 01 1 0 14 7 vlan 1 ports gi 0 1 21 untagged ports gi 0 23 24 untagged ports ex 0 1 3 untagged exit Supermicro L2 L3 Switches Configuration Guide vlan 10 ports gi 0 22 untagged exit interface vlan 10 exit set ip pim enable ip pim component 1 exit ip pim component 50 exit set ipv6 pim enable ip pim component 1 exit ip pim component 50 ipv6 pim rp candidate rp address ff02 e001 0 128 7777 11 exit interface vlan 10 ipv6 pim componentld 50 exit interface vlan 10 ipv6 enable no ipv6 nd suppress ra ipv6 address 7777 11 64 unicast ipv6 address fe80 230 48ff fee3 70bc link local exit Supermicro L2 L3 Switches Configuration Guide
29. 6 pim bsr candidate lt value 0 255 gt Configures the PIM BSR candidate The BSR candidate preference value can be any number from 1 to 255 Default is 1 Step 4 end Exits the configuration mode Step 5 show ipv6 pim bsr Component ld 1 255 Displays the BSR candidate information Supermicro L2 L3 Switches Configuration Guide s for the given interface Step 6 write startup config Optional step saves this PIM configuration to be part of the startup configuration 0 interface 1 4 1 12 2 2 Candidate RP CRP The CRP is the central convergence point of sources and receivers In a PIM sparse domain there are multiple candidate RPs but only one per group is elected The elected RP is the candidate RP having the highest IP address The elected RPs send their information to the BSR which maintains RP to group mapping as the RP set The no ipv6 pim bsr candidate command deletes the BSR information of the particular Supermicro switches provide flexibility for users to configure a different CRP on different components Follow the steps below to configure the candidate RP CRP Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 ip pim component lt Componentld 1 255 gt Enters the PIM component configuration mode The component identifier may be any value from 1 to 255 Default is 1 Step 3 ipv6 pim
30. MIS config interface vlan 10 SMIS config if ipv6 enable SMIS config if ipv6 address 3333 1122 64 unicast SMIS config if end SMIS show ipv6 interface Supermicro L2 L3 Switches Configuration Guide vlan10 is up line protocol is up IPv6 is Enabled Link local address fe80 230 48ff fee3 470 Global unicast address es 3333 1122 64 Joined group address es ff02 1 ff02 2 ff02 1 ff00 1122 ff02 1 ffe3 470 MTU is 1500 ICMP redirects are enabled ND DAD is enabled Number of DAD attempts 1 ND router advertisement is disabled SMIS configure terminal SMIS config ipv6 router rip SMIS config router redistribute connected SMIS config router end SMIS show ipv6 rip RIP port 521 multicast group ff02 9 Maximum paths is 16 Updates every 30 seconds expire after 180 Garbage Collect after 120 seconds Poison Reverse is on Interface Redistribution Connected Routes Redistribution is enabled SMIS show ipv6 rip database RIP local RIB 3333 64 metric 1 local vlan10 expires in 180 secs SMIS show running config Building configuration Switch ID Hardware Version 0 SBM GEM X3S B4 01 vlan 1 ports gi 0 1 21 untagged ports gi 0 23 24 untagged Firmware Version 1 0 14 7 Supermicro L2 L3 Switches Configuration Guide ports ex 0 1 3 untagged exit vlan 10 ports gi 0 22 untagged exit interface vlan 10 exit interface vlan 10 ipv6 enable ipv6 address 3333
31. SPF area Routers that connect to for example the Internet and redistribute external IP routing tables from such protocols as Border Gateway Protocol BGP are termed autonomous system boundary routers ASBRs 1 3 5 6 Types of Routes OSPF supports two types of routes those through internal routers and those through external OSPFs External routes are routing entries in OSPF route tables injected by an external routing protocol such as BGP When calculating the cost to a remote network internal routes add the total cost to the destination whereas external routes include only the cost to the external network 1 3 5 7 Default Route When the redistribution of routes into an OSPF routing domain is configured the route becomes an autonomous system boundary router ASBR The ASBR can generate a default route into the OSPF routing domain by user configuration 1 3 5 8 Metric The OSPF process assigns cost values to interfaces based on the inverse of the bandwidth parameter assigned to the interface with the bandwidth command For calculating the SPF to a given destination the router takes into consideration the costs of the links along various paths The path with the lower cost is selected as the shortest path The SPF algorithm only runs within a single area so routers only compute paths within their own area Inter area routes are passed using border routers Supermicro L2 L3 Switches Configuration Guide 1 3 5 9 Router ID The source
32. SPFv3 static advertises routes configured statically in the OSPFv3 routing process connected advertises directly connected network routes in the OSPFv3 routing process ripng advertises routes that are learned by the RIP process in the OSPFv3 routing process bgp advertises routes that are learned by the BGP process in the OSPFv3 routing process Step 16 passive interface Configures all the interfaces created after this to be passive Step 17 host lt IPv6 Address gt metric lt cost gt area id Configures a host entry with metric lt ArealD gt and or area id IPv6 Address IPV6 address prefix metric metric to be advertised area id a 32 bit integer Step 18 nssaAsbrDfRtTrans Enables the setting of the P bit in the default type 7 LSA generated by an NSSA internal ASBR Step 19 redist config lt IPv6 Prefix gt lt Prefix Length gt Configures the information to be Supermicro L2 L3 Switches Configuration Guide metric value lt metric gt metric type asExttype1 applied to routes learned from RTM asExttype2 tag lt tag value gt IPv6 Prefix the IPv6 address prefix Prefix Length the prefix length of the address metric value the metric value applied to the route before it is advertised to the OSPFv3 domain metric type the metric type applied to the route before it is advertised to the OSPFv3 domain tag the tag type describes whether tags will be aut
33. SUPERMICRO L2 L3 Switches Internet Protocol IPv6 Configuration Guide Revision 1 0 The information in this USER S MANUAL has been carefully reviewed and is believed to be accurate The vendor assumes no responsibility for any inaccuracies that may be contained in this document makes no commitment to update or to keep current the information in this manual or to notify any person organization of the updates Please Note For the most up to date version of this manual please see our web site at www supermicro com Super Micro Computer Inc Supermicro reserves the right to make changes to the product described in this manual at any time and without notice This product including software if any and documentation may not in whole or in part be copied photocopied reproduced translated or reduced to any medium or machine without prior written consent IN NO EVENT WILL SUPERMICRO BE LIABLE FOR DIRECT INDIRECT SPECIAL INCIDENTAL SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO USETHIS PRODUCT OR DOCUMENTATION EVEN IF ADVISED OF THE POSSIBILITY OF SUCHDAMAGES IN PARTICULAR SUPERMICRO SHALL NOT HAVE LIABILITY FOR ANY HARDWARE SOFTWARE OR DATA STORED OR USED WITH THE PRODUCT INCLUDING THE COSTS OFREPAIRING REPLACING INTEGRATING INSTALLING OR RECOVERING SUCH HARDWARE SOFTWARE OR DATA Any disputes arising between manufacturer and customer shall be governed by the laws of Santa Clara County in
34. Step 3 distribute prefix lt ip6_addr gt in out Optional Enables filter network in routing updates sent or received Step 4 End Exits the configuration mode Step 5 show ipv6 rip database Displays the IPv6 local RIB and routing show ipv6 rip stats show ipv6 rip filter protocol information Displays all the interface statistics Displays the peer and Advfilter table The command no redistribute static connected ospf disables the redistribution of routes from another protocol Static or connected or OSPF into RIP6 The command no distribute prefix lt ip6_addr gt in out disables the filter network in routing updates sent or received 1 3 4 4 5 RIP Configuration Example The example below shows the commands used to configure RIP by using two switches switch A and switch B Gi 0 21 Gi 0 22 Switch A Switch B Figure IPv6 2 RIPng Configuration Example Supermicro L2 L3 Switches Configuration Guide The example below shows the commands used to enable IPv6 between two switches switch A and switch B Configuration on switch A SMISH configure terminal SMIS config vlan 10 SMIS config vlan ports gi 0 21 untagged SMIS config vlan exit SMIS config interface vlan 10 SMIS config if ipv6 enable SMIS config if ipv6 address 3333 1111 64 unicast SMIS config if end SMIS show ipv6 interface vlan10 is up line protocol is up IPv6 is Enabled Link loc
35. Switches Configuration Guide ports gi 0 1 20 untagged ports gi 0 22 24 untagged ports ex 0 1 3 untagged exit vlan 10 ports gi 0 21 untagged exit interface vlan 10 exit interface vlan 10 ipv6 enable no ipv6 nd suppress ra ipv6 nd reachable time 100 ipv6 address 3333 1111 64 unicast ipv6 address fe80 230 48ff fee3 475 link local ipv6 nd prefix 3333 64 exit Configuration on switch B SMIS configure terminal SMIS config vlan 10 SMIS config vlan H ports gi 0 22 untagged SMIS config vlan exit SMIS config interface vlan 10 SMIS config if ipv6 enable SMIS config if ipv6 address 3333 1122 64 unicast SMIS config if t end SMIS show ipv6 interface vlan10 is up line protocol is up IPv6 is Enabled Link local address fe80 230 48ff fee3 470 Global unicast address es 3333 1122 64 Joined group address es ff02 1 ff02 2 ff02 1 ff00 1122 ff02 1 ffe3 470 MTU is 1500 ICMP redirects are enabled ND DAD is enabled Number of DAD attempts 1 ND router advertisement is disabled Supermicro L2 L3 Switches Configuration Guide SMIS configure terminal SMIS config interface vlan 10 SMIS config if no ipv6 nd suppress ra SMIS config if ipv6 nd reachable time 100 SMIS config if end SMIS show ipv6 interface vlan10 is up line protocol is up IPv6 is Enabled Link local address fe80 230 48ff fee3 70bc Global unicast address es 3333 1122 64 Joined group address es ff02 1 ff02 2
36. This is called Source Specific Tree or Shortest Path Tree SPT PIM SM is typically used in WAN environments 1 4 1 2 PIM Support Supermicro switches support only PIM SM for IPv6 PIM DM dense mode is not supported for IPv6 An IP multicast routing table can hold 2550 entries which includes 255 groups and 10 sources per group Ko PIM requires a unicast routing protocol such as RIP or OSPF to learn the routes to a source CRP and CBSR PIM uses this information for RPF checks 1 4 1 3 PIM Defaults Parameter Default Value PIM SM Global Status Disabled Component Identifier 1 Static RP Status Disabled PMBR Status Disabled Shortest Path Tree SPT Threshold O packets RP Threshold O packets Shortest Path Tree SPT Switchover O seconds Period RP Switchover Period 0 seconds Register Stop Rate Limit Period 5 seconds PIM Component Defaults Parameter Default Value PIM Component Mode Sparse CRP Hold Time 70 seconds CRP Priority 192 Static RP None Supermicro L2 L3 Switches Configuration Guide PIM Interface Defaults Parameter Default Value Hello Hold Time 30 seconds DR Priority 1 Override Interval 0 LAN Prune Delay Status Enabled LAN Prune Delay 0 Hello Interval 30 seconds CBSR Preference 1 Hello Interval 60 seconds 1 4 1 4 Enabling PIM PIM is disabled by default in Supermicro switches PIM needs to be e
37. Unicast address is an identifier for a single interface An IPv6 packet sent to a Unicast address is delivered to the interface identified by that address 2 Multicast addresses A Multicast address is an identifier for a group set of interfaces that belongs to different nodes An IPv6 packet delivered to a Multicast address is delivered to the multiple interfaces 3 Anycast addresses Anycast address is an identifier for a set of interfaces that may belong to the different nodes An IPv6 packet destined for an Anycast address is delivered to one of the interfaces identified by the address Supermicro L2 L3 Switches Configuration Guide Prefix Designation amp Meaning IPv4 Equivalent 1 128 Unspecified 0 0 0 0 This address may only be used as a source address by an initializing host before it has learned its own address 1 128 Loopback 127 0 0 1 This address is used when a host talks to itself over IPv6 E g one program sends data to another ffff 96 IPv4 Mapped There is no equivalent Example These addresses are used to Ffff 192 0 2 47 embed IPv4 addresses in an IPv6 address fc00 7 Example fdf8 f53b 82e4 53 Unique Local Addresses ULAs These addresses are reserved for local use in home and enterprise environments These addresses may not be unique Packets with these addresses in the source or destination fields are not intended to be routed on the public Internet but only within
38. VLAN and add all required ports For details on configuring a Layer 2 VLAN refer to the VLAN Config guide at www supermicro com Step 3 interface vlan lt vlan id 1 4069 gt Enters the interface configuration mode to specify which interface to be configured as a Layer 3 interface Step 4 ipv6 enable Enable IPv6 on the VLAN Step 5 ipv6 address lt prefix gt lt prefix Len gt unicast Configures an IPv6 address to create a anycast eui64 Layer3 VLAN ipv6 address lt prefix gt link local Configures an IPv6 link local address on an interface prefix IPv6 prefix for the interface prefix len IPv6 prefix length unicast Unicast type of prefix anycast Anycast type of prefix eui64 Type of prefix where the latter 64 bits are formed from the MAC address link local Type of address The prefix length for an eui64 type must be 64 Step 6 End Exits the configuration mode Step 7 show ipv6 interface vlan lt id gt Displays the IPv6 Layer3 VLAN interface tunnel lt id gt prefix configuration O The command no ipv6 enable disables IPv6 on a Layer3 VLAN interface The command no ipv6 address lt prefix gt lt prefix Len gt unicast anycast eui64 deletes Supermicro L2 L3 Switches Configuration Guide the IPv6 address configured on an interface The command no ipv6 address lt prefix gt link local deletes the IPv6 link local address
39. able ip pim component 1 exit ip pim component 50 ipv6 pim rp static rp address ff02 e001 1 128 7777 33 exit interface vlan 10 ipv6 pim bsr candidate 200 ipv6 pim componentld 50 ipv6 pim dr priority 500 exit interface vlan 10 ipv6 enable no ipv6 nd suppress ra ipv6 address 7777 33 64 unicast ipv6 address fe80 230 48ff fee3 475 link local exit Configuration on switch B SMIS configure terminal SMIS config set ipv6 pim enable SMIS config vlan 10 SMIS config vlan ports Gi 0 22 untagged SMIS config vlan exit SMIS config interface vlan 10 SMIS config if ipv6 enable SMIS config if ipv6 pim componentid 50 SMIS config if ipv6 address 7777 11 64 SMIS config if H exit Supermicro L2 L3 Switches Configuration Guide SMIS config ip pim component 50 SMIS pim comp ipv6 pim rp candidate rp address ff02 e001 0 128 7777 11 SMIS show ipv6 pim rp candidate Compld GroupAddress PrefixLength RPAddress Priority 50 ff02 e001 0 128 7777 11 192 SMIS config show ipv6 pim rp candidate Compld GroupAddress PrefixLength RPAddress Priority 50 ff02 e001 0 128 7777 11 192 SMIS show ipv6 pim bsr PIMv2 Bootstrap Configuration For Component 1 Elected BSR for Component 1 V6 BSR Address V6 BSR Priority O Hash Mask Length 126 Elected BSR for Component 50 V6 BSR Address 7777 33 V6 BSR Priority 200 Hash Mask Length 126 SMISH write startup config Building configuration Pleas
40. advertisement messages also contain parameters such as the hop limit and link MTU This feature enables the centralized administration of critical parameters since parameters are set on routers and propagated to all attached hosts 1 1 4 2 Neighbor Solicitation Neighbor solicitation messages determine if more than one node is assigned the same unicast address Neighbor unreachability detection detects the failure of a neighbor or the failure of the forward path to the neighbor This detection requires positive confirmation that the packets that are sent to a neighbor are actually reaching that neighbor Neighbor unreachability detection uses confirmation from two sources upper layer protocols and neighbor solicitation messages When possible upper layer protocols provide a positive confirmation that a connection is making forward progress For example when new TCP acknowledgments are received it is confirmed that previously sent data has been delivered correctly When a node does not receive positive confirmation from upper layer protocols the node sends unicast neighbor solicitation messages These messages solicit neighbor advertisements as reachability confirmation from the next hop 1 1 4 3 Duplicate Address Detection Duplicate address detection is performed on a new link local IPv6 address before the address is assigned to an interface A node sends a neighbor solicitation message with an unspecified source address and a tentative link
41. al address fe80 230 48ff fee3 475 Global unicast address es 3333 1111 64 Joined group address es ff02 1 ff02 2 ff02 1 ff00 1111 ff02 1 ffe3 475 MTU is 1500 ICMP redirects are enabled ND DAD is enabled Number of DAD attempts 1 ND router advertisement is disabled SMISH configure terminal SMIS config ipv6 router rip SMIS config router redistribute connected SMIS config router end SMISH show ipv6 rip RIP port 521 multicast group ff02 9 Maximum paths is 16 Updates every 30 seconds expire after 180 Garbage Collect after 120 seconds Poison Reverse is on Interface Redistribution Connected Routes Redistribution is enabled SMIS show ipv6 rip database Supermicro L2 L3 Switches Configuration Guide RIP local RIB 3333 64 metric 1 local vlan10 expires in 180 secs SMIS show running config Building configuration Switch ID Hardware Version Firmware Version 0 SBM GEM X3S B4 01 1 0 14 7 vlan 1 ports gi 0 1 20 untagged ports gi 0 22 24 untagged ports ex 0 1 3 untagged exit vlan 10 ports gi 0 21 untagged exit interface vlan 10 exit interface vlan 10 ipv6 enable ipv6 address 3333 1111 64 unicast ipv6 address fe80 230 48ff fee3 475 link local ipv6 nd prefix 3333 64 exit ipv6 router rip redistribute connected exit Configuration on switch B SMIS configure terminal SMIS config vlan 10 SMIS config vlan ports gi 0 22 untagged SMIS config vlan exit S
42. are used to suppress routing updates These interfaces can be used to allow an interface to receive updates but prevent the interface from sending advertisements 1 3 4 4 RIPng Configuration 1 3 4 4 1 Default Configuration Parameter Default Value RIPng Status Disabled Split Horizon Status Enabled with Poison Reverse Metric 10 Redistribution Enabled 1 3 4 4 2 Enabling RIPng RIP is disabled by default in Supermicro switches Follow the below steps to enable RIP Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 ipv6 rip enable Enables RIP on all interfaces and enters the router configuration mode Step 3 show ipv6 rip Display the RIP configuration Step 4 End Exits the configuration mode Oo The no ipv6 rip enable command disables RIP in a switch Supermicro L2 L3 Switches Configuration Guide 1 3 4 4 3 Interface Parameters Supermicro switches provide configuration of Interface parameters for RIP Follow the below steps to configure a RIP interface parameters Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 interface vlan lt v an id gt Optional Enters the interface configuration mode This command is applicable only for Layer3 VLAN interfaces with an IPv6 address configured Step 3 ipv6 rip enable Enables RIP routing Step 4 ipv6 split
43. arse 1 30 fe80 230 48ff fee3 475500 SMISH show ipv6 pim neighbor Neighbour IfName ldx Uptime Expiry Ver DRPri Mode Compld Override Lan Address Interval Delay fe80 230 48ff fee3 70bcvlan10 504 00 18 00 80 v2 1 S 50 0 Supermicro L2 L3 Switches Configuration Guide SMIS show ipv6 pim rp static Static RP Enabled Compld GroupAddress PrefixLength RPAddress 50 ff02 e001 1 128 7777 33 SMISH show ipv6 pim neighbor Neighbour IfName ldx Uptime Expiry Ver DRPri Mode Compld Override Lan Address Interval Delay fe80 230 48ff fee3 70bcvlan10 504 00 22 52 88 v2 1 S 50 0 0 SMIS show ipv6 pim bsr PIMv2 Bootstrap Configuration For Component 1 Elected BSR for Component 1 V6 BSR Address V6 BSR Priority O Hash Mask Length 126 Elected BSR for Component 50 V6 BSR Address 7777 33 V6 BSR Priority 200 Hash Mask Length 126 This System is V6 Candidate BSR for Component 50 V6 BSR Address 7777 33 V6 BSR Priority 200 SMISH write startup config Building configuration Please wait May take a few minutes OK SMISH SMISH show running config Building configuration Switch ID Hardware Version Firmware Version 0 SBM GEM X3S B4 01 1 0 14 7 vlan 1 ports gi 0 1 20 untagged Supermicro L2 L3 Switches Configuration Guide ports gi 0 22 24 untagged ports ex 0 1 3 untagged exit vlan 10 ports gi 0 21 untagged exit interface vlan 10 exit set ipv6 pim enable set ip pim static rp en
44. ays summary address information show ipv6 ospf info Displays general information about the OSPFv3 routing process show ipv6 ospf area lt ArealD gt database Displays the LSA information router network as external inter prefix inter router intra prefix link nssa detail HEX show ipv6 ospf route Displays the routes learned by the OSPFv3 process show ipv6 ospf areas Display the area table show ipv6 ospf host Display the host table information show ipv6 ospf redist config Display the configuration information to be applied to the routes learned from the RTM The command no area lt area id gt stability interval sets the default value of the stability interval for the NSSA area The command no area lt area id gt translation role configures the default translation role for the NSSA area The command no timers spf sets the default values for the spf delay and spf holdtime The command no abr type sets the default ABR type to Standard ABR The command no ASBR Router disables the ASBR status of the router The command no redistribute static connected ripng bgp Y disables the redistribution of routes from the given protocol to OSPFv3 The command no passive interface configures all subsequently created interfaces to be non passive The command no host lt IPv6 Address gt deletes a host entry The command no area lt area id gt stub nssa
45. ce and simplified main header and extension headers The large IPv6 address space enablesextends network scalability and global reachability The simplified IPv6 packet header format handles packets more efficiently The flexibility of the IPv6 address space reduces the need for private addresses and the use of Network Address Translation NAT which translates private not globally unique addresses into a limited number of public addresses Supermicro L2 L3 Switches Configuration Guide IPv6 functionality like prefix aggregation simple network renumbering and site multihoming capabilities enable efficient routing IPv6 in Supermicro switches supports Routing Information Protocol RIP Open Shortest Path First OSPF for IPv6 and Protocol Independent Multicast Sparse Mode PIM SM 1 1 1 IPv6 Addresses IPv6 addresses are denoted by eight groups of hexadecimal quartets separated by colons Any four digit group of zeroes within an IPv6 address may be reduced to a single zero or omitted altogether For example 2001 cdba 0000 0000 0000 0000 3257 9652 2001 cdba 0 0 0 0 3257 9652 2001 cdba 3257 9652 Parts of an IPv6 Address X X X X X X X X X X X First 3 Hexadecimal numbers represent Prefix X X Next 2 Hexadecimal numbers represents Subnet ID X X X Last 3 Hexadecimal numbers represent Interface ID 1 1 1 1 IPv6 Address Types IPv6 addresses are broadly classified into three categories 1 Unicast addresses A
46. change without notice Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders Copyright O 2013 by Super Micro Computer Inc All rights reserved Printed in the United States of America Supermicro L2 L3 Switches Configuration Guide Contents 1 IPV6 Configuration Guide re errare a en r aaae aE KEK ka kwa ekin k de nen cen ku EK Hewa H R k ewe kn R n xn e a nik 4 1 1 IPVG OVERVIEW r a EN 4 1 1 1 IPV A ed auedeauacesesninieds E EEEE EEEE eer etees 5 1 1 2 Waa eime e cogs e a eae e rrr 7 1 1 3 PVE TUNDE A A 10 1 1 4 Neighbor Discovery Protocol i 45 4 x0 x5y5i 5 wa xak l s z ke kok Ku EWAR vaari aS We Qa WAE W ASSENS 10 1 2 IPV6 CONFI gUatl0l i i4 5 mikun kk kak kun a iia 13 1 2 1 Defatilt C onfnfi UFAt 5 x i5 i4 2 444145 54x14 rakine ka kn an rak KAK Ha b x k Eka khe a i k wada b w ka k n rra ORE RA 13 1 2 2 Enabling Pri 0 ak ke Ku k n OK 6 sel Gu HRS W R 6 H661 5k e K HEWE Ne KK Ca K CN Qe 14 1 2 3 Neighbor Discovery Protocol sssini nesoni ka kekan k kh AR ki k a n Hee aa ve Ak Kek 15 1 2 4 Configuration EXal t D i 54k44x4s k kk sak keke MEKAN e nk ku ku KK A cnn nn n nan ba dn HA uk Wu HHR R H KA k u kk 18 1 3 IPV6 Ulhicast ROUtIN Baccara a add code 24 1 3 1 Default Configuration A is 24 1 3 2 Disable Enable Unica
47. d before configuring any unicast or multicast routing protocol The example below shows the commands used to disable IPv6 unicast routing SMIS configure terminal Supermicro L2 L3 Switches Configuration Guide SMIS config no ipv6 unicast routing Ensure to disable all the ipv6 routing protocols SMIS config end 1 3 3 Static Route Configuration Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 ipv6 route lt prefix gt lt prefix len gt lt NextHop gt Configures static routes vlan lt id gt lt administrative distance gt unicast prefix IPv6 prefix of the destination prefix len Destination prefix length next hop IPv6 prefix of the next hop that is used to reach the destination network vlan VLAN identifier administrative distance Metric to reach the destination unicast Unicast type of prefix Step 3 End Exits the configuration mode The command no ipv6 route lt prefix gt lt prefix len gt lt NextHop gt vlan lt id gt lt administrative distance gt unicast deletes the static routes configured The next hop for a static route should be a reachable interface on the switch The example below shows the commands used to configure an IPv6 static route SMIS configure terminal SMIS config ipv6 route fec0 3333 0 0 96 fe80 230 48ff fee3 475 SMIS config end SMIS show ipv6 route IPv6 Routing Table
48. der the router can decrement the value without needing to recalculate the checksum which saves processing resources 1 1 4 8 Static Neighbor Supermicro provides manual configuration of a neighbor in the IPv6 neighbor cache If an entry for the specified IPv6 address already exists in the neighbor discovery cache learned through the IPv6 neighbor discovery process the entry is automatically converted to a static entry Static entries in the IPv6 neighbor discovery cache are not modified by the neighbor discovery process 1 2 IPv6 Configuration 1 2 1 Default Configuration Parameter Default Value IPv6 Status Disabled Prefix Type Unicast Global Unicast Address None Router Advertisement Status Suppressed Managed Config Flag Disabled Other Config Flag Disabled Hop Limit 64 DAD Attempt 1 Reachable Time 30 Retransmit Time 1 Router Advertisement Prefix None Router Advertisement Interval 600 IPv6 Neighbor None Router Advertisement Lifetime 1800 RA Valid Lifetime 259200 Ping Data a5a5 Ping Repeat Count 5 Ping Size 100 bytes Ping Timeout 5 seconds Supermicro L2 L3 Switches Configuration Guide 1 2 2 Enabling IPv6 IPv6 processing is disabled by default in Supermicro switches Follow the below steps to enable IPv6 processing on an interface Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 Create a Layer 2
49. dth intensive services including video and audio A multicast group is a set of receivers that want to receive a particular data stream Senders transmit IP data using the multicast group s address as the destination address to multicast to all group members Receivers interested in receiving data meant for a particular group must join the group by signaling a router switch on their subnet MLD is used as the signaling protocol for conveying group membership Network devices that are present on the path between the source and the receivers forward data only on ports leading to the receivers rather than flooding all ports Supermicro L2 L3 Switches Configuration Guide Membership in a multicast group is dynamic as hosts can join and leave at any time There is no restriction on the location or number of members in a multicast group A host can be a member of more than one multicast group at a time Supermicro switches can send and receive multicast traffic by supporting the following multicast features e MLD at the access end of the network that processes hosts announcing their participation in a multicast group s e Multicast Routing Protocols MRPs at the enterprise and core of the network for maintaining the senders receivers database and forwarding data from senders to receivers Hosts iy Switch A Switch B Internet Backbone MLD MRP MRP Figure IPv6 5 IP Multicast Routing 1 4 1 PIM An IPv6 multicast group is an
50. e a different hello interval for individual interfaces Follow the steps below to change the hello interval on any interface Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 interface vlan lt vlan id gt lt interface type gt Enters the layer 3 interface lt interface id gt configuration mode NOTE This command is also applicable to VLANs and routed physical interfaces Refer to the IP Config Guide at www supermicro com Step 3 ipv6 pim query interval lt Interval 0 65535 secs Configures the PIM hello interval value Supermicro L2 L3 Switches Configuration Guide The hello interval value can be any number from 0 65535 Default is 30 seconds Step 4 end Exits the configuration mode Step 5 show ipv6 pim interface Vlan lt vlan id gt detail Displays the hello interval information H for the given interface Step 6 write startup config Optional step saves this PIM configuration to be part of the startup configuration O The no ipv6 pim query interval command resets the query interval to its default value of 30 1 4 1 9 Hold Time Hold time is the neighbor timeout set for every neighbor on a PIM interface If a PIM hello message is not received from a neighbor router during the hold time period then the neighbor will be deleted from the list of neighbors The hold time value is sent as an option in the PIM hell
51. e default neighbor probe retransmission limit Supermicro L2 L3 Switches Configuration Guide 1 3 5 17 5 OSPF Configuration Example The example below shows the commands used to configure OSPF by connecting 2 switches switch A and switch B Gi 0 21 Gi 0 22 Switch A Switch B Figure IPv6 4 OSPFv3 Configuration Example On Switch A SMIS configure terminal SMIS config interface vlan 10 SMIS config if ipv6 ospf neighbor fe80 230 48ff fee3 470 SMIS config if H ipv6 ospf area 0 0 0 0 SMIS config if ipv6 ospf network point to point SMIS config if H no ipv6 ospf demand circuit SMIS config if H ipv6 ospf metric 100 SMIS config if H exit SMIS config ipv6 router ospf SMIS config router demand extensions SMIS config router asbr router SMIS config router redistribute connected SMIS config router end SMIS show ipv6 ospf neighbor ID Pri State DeadTime Address 10 10 10 2 1 FULL PTOP 32 fe80 230 48ff fee3 470 SMIS show ipv6 ospf info Router Id 10 10 10 1 ABR Type Standard ABR SPF schedule delay 5 secs Hold time between two SPFs 10 secs Exit Overflow Interval 0 Ref BW 100000 Ext Lsdb Limit 1 Trace Value 0x00000800 As Scope Lsa 2 Checksum Sum Oxb3cb Demand Circuit Enable Passive Interface Disable Supermicro L2 L3 Switches Configuration Guide Nssa Asbr Default Route Translation Disable Autonomous System Boundary Router Number of Areas in this router 1 Area 0 0 0 0 Numbe
52. e id gt show ip ospf info Displays general information about the OSPF routing process The command no ipv6 ospf disables the OSPFv3 routing protocol on an interface The command no ipv6 ospf demand circuit disables the demand circuit on an interface The command no ipv6 ospf retransmit interval sets the default retransmit interval 5 for an interface The command no ipv6 ospf transmit delay sets the default value of the transmit delay 1 for an interface The command no ipv6 ospf priority sets the default router priority 1 for an interface The command no ipv6 ospf hello interval sets the default hello interval 10 for an interface The command no ipv6 ospf dead interval sets the default dead interval 40 for an interface The command no ipv6 ospf poll interval sets the default poll interval 120 for an interface The command no ipv6 ospf metric sets the default value 10 for the interface metric The command no ipv6 ospf network sets the default value broadcast for the network type The command no ipv6 ospf neighbor lt IPv6 Address gt priority deletes the OSPFv3 neighbor The command no ipv6 ospf passive interface configures an OSPFv3 interface to be non passive The command no ipv6 ospf neighbor probing disables neighbor probing on a demand circuit enabled interface The command no ipv6 ospf neighbor probe retransmit limit sets to th
53. e wait May take a few minutes OK SMIS config show running config Building configuration Switch ID Hardware Version Firmware Version 0 SBM GEM X3S B4 01 1 0 14 7 vlan 1 ports gi 0 1 21 untagged ports gi 0 23 24 untagged ports ex 0 1 3 untagged exit vlan 10 ports gi 0 22 untagged Supermicro L2 L3 Switches Configuration Guide exit interface vlan 10 exit set ip pim enable ip pim component 1 exit ip pim component 50 exit set ipv6 pim enable ip pim component 1 exit ip pim component 50 ipv6 pim rp candidate rp address ff02 e001 0 128 7777 11 exit interface vlan 10 ipv6 pim componentld 50 exit interface vlan 10 ipv6 enable no ipv6 nd suppress ra ipv6 address 7777 11 64 unicast ipv6 address fe80 230 48ff fee3 70bc link local ipv6 nd prefix 7777 64 exit SMIS show ipv6 pim component PIM Component Information Component ld 1 PIM Mode sparse PIM Version 2 Elected BSR Candidate RP Holdtime 0 Component ld 50 PIM Mode sparse PIM Version 2 Elected BSR 7777 33 Candidate RP Holdtime 0 SMIS show ipv6 pim interface Address IfName Ver Mode Nbr Qry Count Interval DR Address DR Prio Supermicro L2 L3 Switches Configuration Guide Es fe80 230 48ff fee3 70bcvlan10 2 Sparse 1 30 fe80 230 48f f fee3 4751 SMIS show ipv6 pim neighbor Neighbour IfName ldx Uptime Expiry Ver DRPri Mode Compld Override Lan Address Interval Delay fe80 230 48ff fee3
54. etime gt infinite at advertisement lt var preferred lifetime gt no advertise off link no autoconfig prefix addr IPv6 prefix to be advertised prefix len Length of the configured prefix default Changes the default value of the rest of the parameters valid lifetime Sets the valid lifetime value for the prefix infinite Sets the infinite valid lifetime Supermicro L2 L3 Switches Configuration Guide value for the prefix at Sets the variable valid lifetime value for the prefix preferred lifetime Sets the preferred lifetime value for the prefix infinite Sets the infinite preferred lifetime value for the prefix at Sets the variable valid lifetime value for the prefix no advertise Sets the no advertise flag off link Sets the off link flag no autoconfig Sets the no autoconfig flag Step 17 End Step 18 show ipv6 interface vlan lt id gt Displays the IPv6 interface information tunnel lt id gt prefix show ipv6 route Displays the IPv6 route information show ipv6 route summary Displays the route summary for IPv6 show ipv6 neighbors Displays the IPv6 neighbors show ipv6 traffic Displays ICMP amp UDP packet statistics Step 19 clear ipv6 neighbors Removes all entries in the IPv6 neighbor table Neighbors may be learned again via Neighbor Discovery Step 20 clear ipv 6 traffic Removes all the entries in the IPv6 traffic table
55. few minutes OK SMISH show running config Building configuration Switch ID Hardware Version Firmware Version 0 SBM GEM X3S B4 01 1 0 14 7 vlan 1 ports gi 0 1 20 untagged ports gi 0 22 24 untagged ports ex 0 1 3 untagged exit vian 10 ports gi 0 21 untagged exit interface vlan 10 ip address 10 10 10 1 255 0 0 0 exit interface vlan 10 ipv6 enable ipv6 address 3333 1111 64 unicast ipv6 address fe80 230 48ff fee3 475 link local ipv6 nd prefix 3333 64 exit ipv6 router ospf router id 10 10 10 1 ASBR Router redistribute connected exit interface vlan 10 ipv6 ospf area 0 0 0 0 ipv6 ospf metric 100 ipv6 ospf network point to point exit Supermicro L2 L3 Switches Configuration Guide On Switch B SMIS configure terminal SMIS config interface vlan 10 SMIS config if ipv6 ospf neighbor fe80 230 48ff fee3 475 SMIS config if ipv6 ospf area 0 0 0 0 SMIS config if ipv6 ospf network point to point SMIS config if no ipv6 ospf demand circuit SMIS config if ipv6 ospf metric 100 SMIS config if ipv6 ospf metric 200 SMIS config if ipv6 ospf transmit delay 10 SMIS config if exit SMIS config ipv6 router ospf SMIS config router demand extensions SMIS config router asbr router SMIS config router redistribute connected SMIS config router end SMIS show ipv6 ospf info Router Id 10 10 10 2 ABR Type Standard ABR SPF schedule delay 5 secs Hold time between two SPFs 1
56. guration to be part of the startup configuration O The no ipv6 pim override interval command resets the override interval to its default value of 0 1 4 1 12 2 Shared Tree RPT All routers send Join Prune information as well as active source information to the RP Hence other non RP routers need not maintain this information This also reduces unnecessary network flooding All routers in a PIM domain must have the same RP information for a particular group RP s in a PIM domain can be learned by a Bootstrap Router BSR mechanism or Static RP 1 4 1 12 2 1 Bootstrap Router BSR The BSR distributes PIM RP information to all groups within the domain Each PIM domain can have only one elected BSR Several routers are configured as candidate BSRs and the BSR with highest preference is elected as the router The elected RPs send their information to the BSR which maintains RP to group mapping as the RP set Supermicro switches provide flexibility for users to configure the BSR for individual interfaces Follow the steps below to configure the BSR Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 interface vlan lt vlan id gt lt interface type gt Enters the layer 3 interface lt interface id gt configuration mode NOTE This command is also applicable to VLANs and routed physical interfaces Refer to the IP Config Guide at www supermicro com Step 3 ipv
57. he configuration mode Step 2 ip pim component lt Componentld 1 255 gt Enters the PIM component configuration mode The component identifier may be any value from 1 to 255 Default is 1 Step 3 set ip pim static rp enable Static RP is disabled by default Use the enable form of this command to enable static RP Step 4 ipv6 pim rp static rp address lt Group Address gt Configures the static RP value lt Group Mask gt lt IP address gt Group Address Group Mask This combination can specify any IP multicast address from 224 0 0 0 to 239 255 255 255 IP Address should be any unicast IPv6 address of the component Link local IPv6 addresses cannot be used for this purpose Step 5 end Exits the configuration mode Step 6 show ipv6 pim rp static Componentld lt 1 255 gt Displays the static RP information for Supermicro L2 L3 Switches Configuration Guide the given interface Step 7 write startup config Optional step saves this PIM configuration to be part of the startup configuration The no ipv6 pim rp static command deletes the static RP information of the particular component 1 4 1 12 2 4 Register Stop Rate Limit When a first hop DR receives a multicast packet it encapsulates it in a register message and unicasts it to the RP for that group The RP de encapsulates each register message and forwards the extracted data packet to the downstream members o
58. her configure the node Nodes can connect to a network and automatically generate global IPv6 addresses without the need for manual configuration or the help of a server such as a Dynamic Host Configuration Protocol DHCP server 1 1 4 6 Timers Supermicro switches enable the configuration of the following Neighbor Discovery timers e Router Advertisement Interval By default router advertisements are sent out every 200 seconds Supermicro allows user to change the interval between router advertisement transmissions on an interface e Neighbor Reachable Time The neighbor reachable time enables the detection of unavailable neighbors Shorter configured times enable detecting unavailable neighbors more quickly however this consumes more network bandwidth and processing resources in all IPv6 network devices Very short configured times are not recommended in normal IPv6 operations e Router Lifetime The router lifetime value specifies how long nodes on the local link should consider the switch as the default router on the link Supermicro L2 L3 Switches Configuration Guide e Retransmit Time The retransmission timer is used to control the time between retransmissions of neighbor solicitation messages 1 1 4 7 Hop Limit The Hop Limit field specifies the maximum number of routers that an IPv6 packet can pass through before the packet is considered invalid Each router decrements the value by one Because no checksum is in the IPv6 hea
59. horizon poison Optional Configures the split horizon status Step 5 ipv6 rip default information originate Configures the handling of the default route origination Step 6 ipv6 rip metric offset lt integer 1 15 gt Adjusts the default metric increment Range is 1 15 Step 7 End Exits the configuration mode Step 8 show ipv6 rip database Displays IPv6 local RIB and routing show ipv6 rip stats show ipv6 rip filter protocol information Displays all the interface statistics Displays the peer and Advfilter tables Oo The command no ipv6 split horizon Disable the split horizon status The command no ipv6 rip default information disables the handling of the default route 1 3 4 4 4 originate Redistribution Supermicro switches provide configuration of certain additional RIP parameters Follow the below steps to configure additional RIP parameters Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 redistribute static connected ospf metric Optional Enables the redistribution of lt integer 0 16 gt corresponding protocol routes into RIP connected Connected routes Supermicro L2 L3 Switches Configuration Guide redistribution ospf Advertises routes learned by OSPF in the RIP process static Statically configured routes to advertise in the RIP process Metric Route metric in range of 0 16
60. ion Step 1 configure terminal Enters the configuration mode Step2 ipv6 router ospf Enables the OSPF routing process Step 3 router id lt IPv4 Address gt Configures the router ID Step4 area lt area id gt stub nssa no summary Defines an area as either a stub area or an nssa area area id a 32 bit integer stub stub area nssa NSSA no summary allows an area to be a stubby not so stubby area but does not allow summary routes to be injected into it Step5 area lt area id gt stability interval lt interval value gt Configures the stability interval for the NSSA area area id a 32 bit integer stability interval the number of seconds after which an elected translator determines that its services are no longer required and that it must continue to perform its translation duties Supermicro L2 L3 Switches Configuration Guide Step 6 area lt area id gt translation role always candidate Configures the translation role for the NSSA area area id a 32 bit integer translation role an NSSA border router s ability to perform NSSA Step 7 timers spf lt spf delay gt lt spf holdtime gt To configure the SPF delay and SPF Holdtime when an OSPF receives a topology change and when it starts a shortest path first SPF calculation and the hold time between two consecutive SPF calculations spf delay The interval by which the SPF calculation is delayed after a topo
61. ious OSPF network types and their compatibility with one another are specified below Non Broadcast This is the default for OSPF enabled frame relay physical interfaces Non broadcast networks require a static neighbor configuration and OSPF hellos are sent via unicast The non broadcast network type has a 30 second hello and a 120 second dead timer An OSPF non broadcast network type requires the use of a DR BDR Broadcast This is the default for an OSPF enabled Ethernet interface The broadcast network type requires link support layer 2 broadcast capabilities The broadcast network type has a 10 second hello and a 40 second dead timer An OSPF broadcast network type requires the use of a DR BDR Point to Point A point to point OSPF network type does not maintain a DR BDR relationship The point to point network type has a 10 second hello and a 40 second dead timer Point to point network types are intended to be used between two directly connected routers Point to Multipoint This is viewed as a collection of point to point links Point to multipoint networks do not maintain a DR BDR relationship or advertise a hot route for all the frame relay endpoints The point to multipoint network type has a 30 second hello and a 120 second dead timer Supermicro L2 L3 Switches Configuration Guide 1 3 5 170SPFv3 Configuration 1 3 5 17 1 Default Configuration Parameter Defaul
62. is PIM Supermicro L2 L3 Switches Configuration Guide ES configuration to be part of the startup configuration O The set ip pim pmbr disable command disables the PMBR functionality 1 4 1 12 PIM SM Specific Configuration This section covers Supermicro switch commands that are applicable only in PIM SM mode 1 4 1 12 1 PIM Join Prune 1 4 1 12 1 1 Join Prune Interval A PIM router sends join messages periodically to upstream routers that are towards the RP or source to keep the multicast tree active Periodic prune messages are sent when existing receivers do not want multicast data This periodic time interval for sending join prune is called the Join Prune interval The default join prune interval is 60 seconds Supermicro switches provide flexibility for users to configure different join prune intervals on different interfaces Follow the steps below to change the join prune interval on any interface Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 interface vlan lt vlan id gt lt interface type gt Enters the layer 3 interface lt interface id gt configuration mode NOTE This command is also applicable to VLANs and routed physical interfaces Refer to the IP Config Guide at www supermicro com Step 3 Ipv6 pim message interval lt Interval 0 65535 gt Configures the PIM join prune interval value The join prune interval value can be an
63. local address in the body of the message e f another node is already using that address the node returns a neighbor advertisement message that contains the tentative link local address e If another node is simultaneously verifying the uniqueness of the same address that node also returns a neighbor solicitation message e f no neighbor advertisement messages are received in response to the neighbor solicitation message and no neighbor solicitation messages are received from the other nodes that are attempting to verify the same tentative address the node that sent the original neighbor Supermicro L2 L3 Switches Configuration Guide solicitation message considers the link local address to be unique and assigns the address to the interface 1 1 4 4 RA Prefixes Router advertisements contain subnet prefixes which are used to determine if a host is on the same link on link as the router Hosts use the advertised prefixes to build and maintain a list that is used to decide when a packet s destination is on link or beyond a router Router advertisements and per prefix flags provide stateless address auto configuration 1 1 4 5 Stateless Autoconfiguration All interfaces on IPv6 nodes have a link local address on startup which is usually automatically configured from the identifier for an interface and the link local prefix FE80 10 A link local address enables a node to communicate with other nodes on the link and can be used to furt
64. logy change reception The range is 1 65535 spf holdtime The delay between two consecutive SPF calculations The range is 1 65535 Step 8 abr type standard cisco ibm Sets the alternative ABR type standard standard ABR type cisco CISCO ABR type ibm IBM ABR type Step 9 area lt area id gt default metric lt metric gt Sets the default metric value for an NSS stub area type only default metric cost for the default summary route ina NSS stub area Step 10 area lt area id gt default metric type lt metricType gt Sets the default metric type for an NSS stub area type only area id A 32 bit integer default metric type Type of metric Step 11 area lt area id gt virtual link lt router id gt lt if index gt hello interval lt seconds gt retransmit interval lt seconds gt transmit delay lt seconds gt dead interval lt seconds gt Sets the virtual link between areas area id a 32 bit integer Supermicro L2 L3 Switches Configuration Guide virtual link the router ID of the virtual neighbor if index interface index assigned to the OSPFv3 virtual interface hello interval the interval between hello packets on the OSPFv3 virtual link interface Range is 1 65535 Retransmit interval the time between link state advertisement LSA retransmissions for adjacencies belonging to the OSPFv3 virtual link interface Range is 1 1800 transmi
65. n the RPT If there are no receivers on the RP it then sends a register stop to the first hop DR as long as there are no receivers The register stop rate limit is used at the RP to limit the number of register stop messages sent per second to the first hop DR The default register stop rate limit is 0 Follow the steps below to configure the register stop rate limit Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 set ip pim regstop ratelimit period lt 0 Sets the register stop rate limit for 2147483647 in secs gt group and source The register stop rate limit interval can be any number from 0 2147483647 seconds Default is 0 seconds Step 3 end Exits the configuration mode Step 4 show ipv6 pim thresholds Displays the configured PIM thresholds Step 5 write startup config Optional step saves this PIM configuration to be part of the startup configuration 1 4 1 12 3 Shortest Path Tree SPT 1 4 1 12 3 1 SPT at RP When a first hop DR receives a multicast packet it encapsulates it in a register message and unicasts it to the RP for that group The RP de encapsulates each register message and forwards the extracted data packet to the downstream members on the RPT Supermicro L2 L3 Switches Configuration Guide The RP then sends an S G join to the first hop DR to build the Source Tree or Shortest Path Tree SPT back to the source This mecha
66. nabled globally for IP multicast operations Follow the steps below to enable PIM Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 set ipv6 pim enable disable Enables PIM for IPv6 globally PIM creates the default PIM component identifier 1 once PIM for IPv6 is enabled Step 3 end Exits the configuration mode Step 4 show ipv6 pim component component id_1 255 Displays the PIM information Step 5 write startup config Optional step saves this PIM configuration to be part of the startup configuration If PIM is enabled globally all PIM components are also automatically PIM enabled All PIM configuration and display commands operate only when PIM is enabled The command no ipv6 pim enable disables PIM for IPv6 1 4 1 5 PIM Components and Interface Supermicro switches provide multiple instances of PIM in a router The PIM instances are referred to as PIM components Every component can be associated with one or more layer3 VLAN interface s and is identified by a component identifier Follow the steps below to create a PIM component s Supermicro L2 L3 Switches Configuration Guide EI Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 ip pim component lt Componentld 1 255 gt Creates the PIM component and enters the component mode The component identifier value can be any number fr
67. nds SMIS show ipv6 route IPv6 Routing Table 1 entries Codes C Connected S Static O OSPF R RIP B BGP Supermicro L2 L3 Switches Configuration Guide C 3333 64 1 1 via vlan10 SMIS show ipv6 route summary IPv6 Routing Table Summary 1 entries 1 Connected O Static O RIP O BGP O OSPF Number of prefixes 64 1 SMIS show ipv6 traffic IPv6 Statistics FK K K K K K K K K K K K K K K Rcvd O HdrErrors 0 TooBigErrors AddrErrors O FwdDgrams 0 UnknownProtos Discards 8 Delivers 8 OutRequests OutDiscards 0 OutNoRoutes 0 ReasmReqds ReasmOKs 0 ReasmfFails FragOKs O FragFails O FragCreates RevdMCastPkt 8 SentMcastPkts O TruncatedPkts RevdRedirects 0 SentRedirects ICMP Statistics K K K K OK K K K K K K K K kk 9Q O O O O O9 O O Received ICMPPkts OICMPErrPkt 0 DestUnreach 0 TimeExcds ParmProbs 0 PktTooBigMsg OICMPEchoReq O ICMPEchoReps RouterSols 5 RouterAdv 0 NeighSols 0 NeighAdv Redirects 0 AdminProhib 0OICMPBadCode Sent O ICMPMsgs OICMPErrMsgs 0 DstUnReach 0 TimeExcds O ParmProbs OPktTooBigs OEchoReq 0 EchoReply 0 RouterSols 6 RouterAdv 2 NeighSols 0 NeighborAdv 0 RedirectMsgs 0 AdminProhibMsgs UDP statistics 2K K K K K K KKK KK KK O UW OW Received 0 UDPDgrams 1UDPNoPorts 0 UDPErrPkts Sent 0 UDPDgrams SMIS show running config Building configuration Switch ID Hardware Version Firmware Version 0 SBM GEM X3S B4 01 1 0 14 7 vlan 1 Supermicro L2 L3
68. nfiguration to be part of the startup configuration switch period interval and if the count exceeds the SPT threshold the last hop router switches from RP tree to SPT The SPT threshold is disabled by default in Supermicro switches i e last hop routers switch to SPT immediately upon receipt of a multicast data packet Follow the steps below to configure the Shortest Path Tree SPT threshold Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 set ip pim threshold spt grp spt src lt number Sets the Shortest Path Tree SPT of packets 0 2147483647 gt threshold for group and source The number of packets can be any number from 0 2147483647 Default is O packets Step 3 end Exits the configuration mode Step 4 show ipv6 pim thresholds Displays the configured PIM thresholds Step 5 write startup config Optional step saves this PIM configuration to be part of the startup configuration Supermicro L2 L3 Switches Configuration Guide 1 4 1 13PIM Configuration Example The example below shows the commands used to configure PIM by connecting 2 switches switch A and switch B Gi 0 21 Gi 0 22 Switch A Switch B Figure IPv6 6 PIM Configuration Example Configuration on switch A SMIS configure terminal SMIS config set ipv6 pim enable SMIS config ip pim component 50 SMIS config set ip pim static rp enable SMIS config
69. nism where the RP builds an SPT is called SPT switchover at RP Typically the SPT switchover occurs when a data rate threshold is reached which is configurable in Supermicro switches using e RP switch period e RP threshold 1 4 1 12 3 2 RP Switch Period The RP switch period is used together with the RP threshold to specify the time when the RP can switch over to Shortest Path Tree SPT The multicast data packet count is checked every RP switch period interval and if it exceeds the RP threshold the RP switches from RP tree to Shortest Path Tree SPT The RP switch period is disabled by default in Supermicro switches i e an RP will switch to SPT immediately upon receipt of a multicast data packet Follow the steps below to configure the RP switch period Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 set ip pim rp switchperiod lt 0 2147483647 in Sets the RP switch period secs gt The RP switch period can be any number from 0 2147483647 seconds Default is 0 seconds Step 3 end Exits the configuration mode Step 4 show ipv6 pim thresholds Displays the configured PIM thresholds Step 5 write startup config Optional step saves this PIM configuration to be part of the startup configuration 1 4 1 12 3 3 RP Threshold The RP threshold is used together with the RP switch period to specify the time when the RP can switch over to Shortest Path T
70. o message to neighbors The default hold time is 30 seconds Supermicro switches provide flexibility for users to configure different hold times on different interfaces Follow the steps below to change the hold time on any interface Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 interface vlan lt vlan id gt lt interface type gt Enters the layer 3 interface lt interface id gt configuration mode NOTE This command is also applicable to VLANs and routed physical interfaces Refer to the IP Config Guide at www supermicro com Step 3 ipv6 pim hello holdtime lt holdtime 1 65535 gt Configures the hello hold time value The hello hold time value can be any number from 1 65535 Default is 30 seconds Step 4 end Exits the configuration mode Step 5 show ipv6 pim interface Vlan lt vlan id gt detail Displays the hello hold time H information for the given interface Supermicro L2 L3 Switches Configuration Guide Step 6 write startup config Optional step saves this PIM configuration to be part of the startup configuration O The no ipv6 pim hello holdtime command resets the hold time to its default value of 30 1 4 1 10 Multicast Routing Table The multicast routing table contains information about active multicast trees This table lists both forwarding and non forwarding entries i e multicast entries that ha
71. om 1 255 Default is 1 Step 3 interface vlan lt vlan id gt Enters the interface configuration mode This command is applicable only to layer3 VLAN interfaces Step 4 ipv6 pim componentld lt value 1 255 gt Configures the interface component identifier value The component identifier value can be any number from 1 255 Default is 1 Step 5 end Exits the configuration mode Step 6 show ipv6 pim interface Vlan lt vlan id gt detail Displays the component information for H the given VLAN show ipv6 pim component Componentid lt 1 255 gt Step 7 write startup config Optional step saves this PIM configuration to be part of the startup configuration 1 4 1 6 PIM Neighbor PIM routers exchange periodic hello messages with routers that are directly connected These directly connected routers are the PIM neighbors PIM hello messages contain different configurable options 1 4 1 7 DR Priority DR priority is used to determine the Designated Router in the subnet The Designated Router is the router with highest DR priority As a last hop router the DR is responsible for forwarding joins to the upstream As a first hop router the DR is responsible for forwarding data to the downstream The default DR priority is 1 Supermicro switches provide flexibility for users to configure the DR priority for individual interfaces Users can configure a different DR priority on different interfaces Follow
72. omatically generated or will be manually configured Step 20 as external Isdb limit lt Isdb limit 1 Ox7fffffff gt Sets to the maximum number of non default AS external LSAs entries that can be stored in the _ link state database If the value is 1 then there is no limit Step 21 exit overflow interval lt interval gt Sets the number of seconds that after entering an overflow state a router will attempt to leave the overflow state Range is 1 65535 Step 22 demand extensions Enables routing support for demand routing Step 23 reference bandwidth lt ref bw gt Reference bandwidth in kilobits second for calculating default inteface metrics Range is 1 65535 Step 24 End Exits the configuration mode Step 25 show ipv6 ospf interface vlan lt vlan id 1 4069 gt Displays the OSPFv3 related interface information show ipv6 ospf neighbor lt Neighbor RouterID gt Displays OSPFv3 neighbors information show ipv6 ospf request list retrans list Displays a list of all link state lt Neighbor RouterlD gt advertisements LSAs in a request list or a retransmission list show ipv6 ospf virtual links Displays the parameters and the current state of OSPFv3 virtual links show ipv6 ospf border routers Displays the internal OSPFv3 routing Supermicro L2 L3 Switches Configuration Guide E table entries to an ABR ASBR show ipv6 ospf area range summary prefix Displ
73. r of interfaces in this area is 1 Number of Area Scope Lsa 4 Checksum Sum Ox1ce90 Number of Indication Lsa O SPF algorithm executed 13 times SMIS show ipv6 ospf areas OSPFV3 AREA CONFIGURATION INFORMATION Areald 0 0 0 0 Area Type NORMAL AREA Spf Calculation 13 times Area Bdr Rtr Count 0 As Bdr Rtr Count 1 Area Summary Send Summary SMIS show ipv6 ospf route OSPFV3 Process Routing Table Dest Prefix Length NextHop Ifindex Cost Rt Type Area 3333 64 I vlan10 100 intraArea 0 0 0 0 SMIS show ipv6 ospf interface Ospfv3 Interface Information Interface Name vlan10 Interface Id 504 Area Id 0 0 0 0 Local Address fe80 230 48ff fee3 475 Router Id 10 10 10 1 Network Type PTOP Cost 100 State PTOP Designated Router Id 0 0 0 0 local address null Backup Designated Router Id 0 0 0 0 local address null Transmit Delay 1 sec Priority 1 IfOptions 0x0 Timer intervals configured Hello 10 Dead 40 Retransmit 5 Poll 120 Demand Circuit Disable Neighbor Probing Disable Nbr Probe Retrans Limit 10 Nbr Probe Interval 120 Hello due in 5 sec Neighbor Count is 1 Adjacent with neighbor 10 10 10 2 SMIS show ipv6 ospf border routers OSPFv3 Process Border Router Information Supermicro L2 L3 Switches Configuration Guide Destination Type NextHop Cost RtType Area ld 10 10 10 2 ASBR fe80 230 48ff fee3 470 100 intraArea 0 0 0 0 SMISH write startup config Building configuration Please wait May take a
74. ree SPT The multicast data packet count is checked every RP switch period interval and if it exceeds the RP threshold the RP switches from RP tree to SPT The RP threshold is disabled by default in Supermicro switches i e an RP will switch to SPT immediately upon receipt of a multicast data packet Follow the steps below to configure the RP threshold Supermicro L2 L3 Switches Configuration Guide Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 set ip pim rp threshold lt number of packets 0 Sets the SPT threshold for group and 2147483647 gt source The number of packets can be any number from 0 2147483647 Default is O packets Step 3 end Exits the configuration mode Step 4 show ipv6 pim thresholds Display the configured PIM thresholds Step 5 write startup config Optional step saves this PIM configuration to be part of the startup configuration 1 4 1 12 3 4 SPT at Last Hop DR When the last hop DR receives a multicast packet from a Shared Tree or RP Tree it sends an S G join to the first hop DR to build a Source tree or Shortest Path Tree SPT back to the source This mechanism of last hop DR building a SPT is called SPT switchover at Last hop DR Once SPT is established at the last hop DR the RPT is pruned and data is then received by SPT only Typically the SPT switchover occurs when a data rate threshold is reached which i
75. s 1 65535 Step 15 ipv6 ospf metric lt metric gt Optional Explicitly specifies the cost of sending a packet on an interface Range is 1 65535 Step 16 ipv6 ospf network broadcast non broadcast point to multipoint point to point Optional Configures the OSPF network type to a type other than the default for a given media Step 17 ipv6 ospf poll interval lt interval gt Configure the Poll Interval Interval Poll Interval in seconds in range 1 65535 This value should be larger than hello interval If hello packets are not received from a neighbor switch for the Router Dead Interval period hello packets are still sent to the dead neighbor at a reduced rate called Poll Interval Step 18 ipv6 ospf passive interface Configures an OSPFv3 interface to be passive Step 19 ipv6 ospf neighbor probing This command enables neighbor probing on a demand circuit enabled interface Step 19 End Exits the configuration mode Step 20 show ipv6 ospf interface vlan lt vlan id 1 4069 gt show ipv6 ospf neighbor lt Neighbor RouterlD gt show ip ospf retransmission list lt neighbor id gt Displays OSPF interface information Displays OSPF neighbor Displays OSPF link state retransmission Supermicro L2 L3 Switches Configuration Guide EI 0 vlan lt vlan id 1 4069 gt lt interface type gt list information lt interfac
76. s configurable in Supermicro switches using e SPT switch period e SPT threshold 1 4 1 12 3 5 SPT Switch Period The Shortest Path Tree SPT switch period is used together with the SPT threshold to specify the time when the last hop router can switch over to SPT The multicast data packet count is checked every SPT switch period interval and if it exceeds the SPT threshold the last hop router switches from RP tree to SPT The SPT switch period is disabled by default in Supermicro switches i e last hop routers switch to SPT immediately upon receipt of a multicast data packet Follow the steps below to configure the period for the SPT switch Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 set ip pim spt switchperiod lt 0 2147483647 in Sets the Shortest Path Tree SPT secs gt threshold for group and source Supermicro L2 L3 Switches Configuration Guide The number of packets can be any number from 0 2147483647 Default is 0 packets Step 3 end Exits the configuration mode Step 4 show ipv6 pim thresholds Displays the configured PIM thresholds Step 5 write startup config Optional step saves this PIM 1 4 1 12 5 6 SPT Threshold The Shortest Path Tree SPT threshold is used together with the SPT switch period to specify the time when the last hop router can switch over to SPT The multicast data packet count is checked every SPT co
77. st ROUtING cccccccesssecessseessececscescssecesseeessececsseceesaeeesaeeeesaeceeseeensnss 24 1 3 3 Static Route Configuration ccccseccesccessecssseeceececuecsaaecseasecseeeessaesesseeecsesessaeesssaessseeeeees 25 1 3 4 b a rr rr r rrr DDm am 26 1 3 5 OSPEV3 O 33 1 4 IPD castrar 56 1 4 1 NN 57 Supermicro L2 L3 Switches Configuration Guide 1 IPv6 Configuration Guide This document describes the IPv6 features and configurations supported by Supermicro Layer 2 Layer 3 switches Top of Rack Switches Blade Switches e SSE G24 TG4 e SBM GEM X2C e SSE G48 TG4 e SBM GEM X2C e SSE X24S e SBM GEM X3S e SSE X3348S e SBM XEM X10SM e SSE X3348T The majority of this document applies to the above listed Supermicro switch products In any particular subsection however the contents might vary across these product models In those sections the differences are clearly identified with reference to a particular model s If any particular model is not referenced the reader can safely assume that the content is applicable to all the above listed models O Throughout this document the common term switch refers to any of the above listed Supermicro switch models unless a particular model is noted 1 1 IPv6 Overview IPv6 is designed to replace IPv4 providing an increase in the number of network address bits from 32 to 128 bits IPv6 is based on IPv4 however IPv6 has a much larger address spa
78. t Value OSPFv3 Status Disabled Router ID None Area None Hello Interval 10 seconds Router Dead Interval 40 Transmit Delay 1 Router Priority 1 Retransmission Interval 5 Polling Interval 120 Passive Interface Status Disabled Secondary IP Disabled ASBR Status Disabled NSSA ASBR Status Disabled RPF 1583 Compatibility Enabled LSA Interval 5 SPF Hold time 10 milliseconds SPF Interval 1 milliseconds ABR Standard ABR Network Type Broadcast Metric 10 1 3 5 17 2 Enabling OSPF OSPF is disabled by default in Supermicro switches Follow the steps below to enable OSPF and configure an OSPF router ID Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 ipv6 router ospf Enables the OSPF routing process Step 3 router id lt IPv4 Address gt Configures the router ID using an IPv4 address NOTE Both OSPFv3 and OSPFv2 use a 32 bit IPv4 address to select the router ID for an OSPF process Supermicro L2 L3 Switches Configuration Guide EN Step 4 End Exits the configuration mode Step 5 show ipv6 ospf info Displays general information about the OSPFv3 routing process O The no ipv6 router ospf command disables OSPFv3 in the switch 1 3 5 17 3 Area Parameters Supermicro switches provide configuration options for the OSPF area Follow the steps below to configure the OSPF area and its parameters Step Command Descript
79. t delay the estimated time it takes to transmit a link state update packet over this interface Range is 1 1800 dead interval the interval at which hello packets must not be seen before its neighbors declare the router down Range is 1 65535 Step 12 ASBR Router Configures the router as an ASBR Only when ASBR Autonomous System Border Router status is set to enabled are routes from other protocols redistributed into the OSPFv3 domain Step 13 area lt Area ID gt range lt IPv6 Prefix gt lt Prefix Summarizes routes at an area boundary Length gt advertise not advertise summary Type7 tag lt tag value gt Area ID a 32 bit integer range internal aggregation address range IPv6 Prefix the IPv6 address prefix of the range Prefix Length the prefix length of the address range advertise flushes out all the routes LSAs falling in the range and Supermicro L2 L3 Switches Configuration Guide generates an aggregated LSA for the range not advertise suppresses routes that match the prefix prefix length pair summary summary LSA Type7 type 7 LSA tag sets the tag value for the aggregated route Step 14 area lt ArealD gt summary prefix lt IPv6 Prefix gt Sets the external summary address lt Prefix Length gt allowAll denyAll advertise not advertise Translation enabled disabled ArealD a 32 bit integer H summary prefix summary prefix
80. ter advertise prefixes assist in address configuration and share other link information such as MTU size and hop limit The IPv6 nodes on the link can use this information to configure themselves with an IPv6 address and routing information such as the default gateway Router Solicitation RS Messages sent by IPv6 nodes when they come online to solicit immediate router advertisements from the router Neighbor Solicitation NS Messages used for duplicate address detection and to test the reachability of neighbors A host can verify that its address is unique by sending a neighbor solicitation message destined to the new address If the host receives a neighbor advertisement in reply the address is a duplicate Neighbor Advertisement NA Messages used for duplicate address detection and to test the reachability of neighbors Neighbor advertisements are sent in response to neighbor solicitation messages Supermicro L2 L3 Switches Configuration Guide Redirect Routers use redirect messages to inform hosts of a better first hop for a destination or that the destination is on the same link 1 1 4 1 Router Advertisement RA Each router periodically sends to the multicast group a router advertisement packet that announces its availability This is applicable only on multicast capable links and point to point links routers generate router advertisements frequently so hosts learn of their neighbors within a few minutes Router
81. the steps below to change the Hello interval on any interface Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 interface vlan lt vlan id gt lt interface type gt Enters the layer 3 interface Supermicro L2 L3 Switches Configuration Guide lt interface id gt configuration mode NOTE This command is also applicable to VLANs and routed physical interfaces Refer to the IP Config Guide at www supermicro com Step 3 ipv6 pim dr priority lt priority 1 65535 gt Configures the PIM DR priority value The DR priority value can be any number from 1 65535 Default is 1 Step 4 end Exits the configuration mode Step 5 show ipv6 pim interface Vlan lt vlan id gt detail Displays the DR priority information for the given interface Step 6 write startup config Optional step saves this PIM configuration to be part of the startup configuration O The no ipv6 pim dr priority command resets the DR priority to its default value of 1 1 4 1 8 Hello Interval The PIM router sends hello messages periodically to all its neighbors to maintain information about directly connected upstream router s towards source s or RP s and downstream routers towards receivers This periodic time interval is called the Hello Interval The default hello interval is 30 seconds Supermicro switches provide flexibility for users to configur
82. v 0 NeighSols 0 NeighAdv Redirects 0 AdminProhib 0 ICMPBadCode Sent O ICMPMsgs OICMPErrMsgs 0 DstUnReach 0 TimeExcds O ParmProbs OPktTooBigs OEchoReq 0 EchoReply 0 RouterSols 5 RouterAdv 2 NeighSols 0 NeighborAdv 0 RedirectMsgs 0 AdminProhibMsgs UDP statistics FK ok K K K kK K KK KK KK ONO O Received 0 UDPDgrams 1UDPNoPorts 0 UDPErrPkts Sent O UDPDgrams SMIS show running config Building configuration Switch ID Hardware Version Firmware Version 0 SBM GEM X3S B4 01 1 0 14 7 vlan 1 ports gi 0 1 21 untagged ports gi 0 23 24 untagged ports ex 0 1 3 untagged exit vian 10 Supermicro L2 L3 Switches Configuration Guide ports gi 0 22 untagged exit interface vlan 10 exit interface vlan 10 ipv6 enable no ipv6 nd suppress ra ipv6 nd reachable time 100 ipv6 address 3333 1122 64 unicast ipv6 address fe80 230 48ff fee3 70bc link local ipv6 nd prefix 3333 64 exit 1 3 IPv6 Unicast Routing 1 3 1 Default Configuration Parameter Default Value IPv6 Unicast Routing Status Enabled IPv6 Static Route Administrative Distance 1 3 2 Disable Enable Unicast Routing Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 no ipv6 unicast routing Enables unicast routing Step3 End Exits the configuration mode O The command ipv6 unicast routing enables unicast routing Unicast routing should be enable
83. ve data flow and entries that do not have data flow Every entry in the multicast routing table has one Incoming Interface IIF and one or more Outgoing Interfaces OIF The entry can be G or S G G entries have the W and R bit set while S G entries have the Shortest Path Tree SPT bit set The RP and RPF neighbors are also listed The route to the BSR RP and source must be reachable via any unicast protocol Otherwise the multicast routing table will not be formed due to an RPF check failure 1 4 1 11 PMBR A PIM Multicast Border Router PMBR is the border between two or more PIM domains running different MRP s such as PIM SM PIM DM or DVMRP PMBRs connect each PIM domain to the rest of the Internet The PMBR forwards multicast packets across different domains hence receivers in one domain receive packets from sources in another domain In a PMBR different interfaces can be configured as DVMRP PIM SM or PIM DM interfaces PMBR is disabled by default in Supermicro switches Follow the steps below to enable PMBR Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 set ip pim pmbr enable Enables or disables PMBR Step 3 end Exits the configuration mode Step 4 show ipv6 pim interface Vlan lt vlan id gt detail Displays the interface configuration H including the PMBR information Step 5 write startup config Optional step saves th
84. virtual link lt router id gt default metric range summary Type7 summary prefix lt IPv6 Prefix gt lt Prefix Length gt deletes an Supermicro L2 L3 Switches Configuration Guide area converts a stub nssa area to a normal area deletes a virtual link deletes a stub cost or deletes an area range or summary prefix The command no nssaAsbrDfRtTrans disables the setting of the P bit in a default type 7 LSA generated by an NSSA internal ASBR The command no redist config lt IPv6 Prefix gt lt Prefix Length gt deletes the information applied to routes learned from an RTM The command no demand extensions disables the routing support for demand routing 1 3 5 17 4 Interface Parameters All OSPF interface level configurations are optional and must be consistent compatible across all routers in an attached network Follow the steps below to configure OSPF parameters in Supermicro switches Step Command Description Step 1 configure terminal Enters the configuration mode Step 2 ipv6 router ospf Enables the OSPF routing process Step 3 router id lt IPv4 Address gt Configures the router ID Step 4 Exit Exits the router configuration mode Step 5 interface vlan lt vlan id gt Optional Enters the interface configuration mode This command is applicable only for layer3 VLAN interfaces with an IPv6 address configured Step 6 ipv6 ospf area lt IPv4 Address gt To
85. witch A SMISH configure terminal SMIS config vlan 10 SMIS config vlan ports gi 0 21 untagged SMIS config vlan exit SMIS config interface vlan 10 SMIS config if ipv6 enable SMIS config if ipv6 address 3333 1111 64 unicast SMIS config if end SMIS show ipv6 interface vlan10 is up line protocol is up IPv6 is Enabled Link local address fe80 230 48ff fee3 475 Supermicro L2 L3 Switches Configuration Guide Global unicast address es 3333 1111 64 Joined group address es ff02 1 ff02 2 ff02 1 ff00 1111 ff02 1 ffe3 475 MTU is 1500 ICMP redirects are enabled ND DAD is enabled Number of DAD attempts 1 ND router advertisement is disabled SMISH configure terminal SMIS config interface vlan 10 SMIS config if no ipv6 nd suppress ra SMIS config if ipv6 nd reachable time 100 SMIS config if end SMIS show ipv6 neighbors IPv6 Address Age Link layer Addr State Interface fe80 230 48ff fee3 70bc 0 00 30 48 e3 70 bc Stale vlan10 SMIS show ipv6 interface vlan10 is up line protocol is up IPv6 is Enabled Link local address fe80 230 48ff fee3 475 Global unicast address es 3333 1111 64 Joined group address es ff02 1 ff02 2 ff02 1 ff00 1111 ff02 1 ffe3 475 MTU is 1500 ICMP redirects are enabled ND DAD is enabled Number of DAD attempts 1 ND router advertisement is enabled ND reachable time is 100 seconds ND retransmit time is 1 seconds ND router advertisements are sent every 600 seco
86. y Areq NSSA This area is used to connect to an ISP All advertised routes can be flooded through the NSSA but are blocked by the ABR Ta AREA 1 ABR and _____ n Internal Backbone Router Routers T gt AREA 0 j AREA 0 Backbone Routers ASBR and Backbone Router Internal Router Internal Router ABR and Backbone Figure IPv6 3 OSPF Area Routers Supermicro L2 L3 Switches Configuration Guide 1 3 5 5 0SPF Router Types There are different types of OSPF routers classified based on functionality e Internal Router this router is within a specific area only Internal router functions include maintaining the OSPF database and forwarding data to other networks All interfaces on internal routers are in the same area e Backbone Router backbone routers are connected to area 0 which is also represented as area 0 0 0 0 A backbone router can perform ASBR functions as well as ABR functions e Area Border Router ABR ABRs are responsible for connecting two or more areas An ABR contains the full topological database for each area it is connected to and sends this information to other areas ABRs contain a separate Link State Database separating LSA flooding between areas optionally summarizing routes and optionally sourcing default routes e Autonomous System Boundary Router ASBR this is a router that has at least one interface in an OSPF area and at least one interface outside of an O
87. y number from 0 65535 Default is 60 Step 4 end Exits the configuration mode Step 5 show ipv6 pim interface Vlan lt vlan id gt detail Displays the join prune interval H information for the given interface Step 6 write startup config Optional step saves this PIM Supermicro L2 L3 Switches Configuration Guide configuration to be part of the startup configuration The no ipv6 pim message interval command resets the join prune interval to its default value of 60 1 4 1 12 1 2 LAN Prune Delay The LAN prune delay option is used in multi access networks to delay the processing of prune messages received at upstream routers This ensures that there is no flapping of multicast data in a multi access LAN due to joins by some routers and prunes by other routers When an upstream router in a multi access LAN receives prune message from a downstream router it does not prune the tree immediately but instead maintains the tree for the duration of the LAN prune delay interval The tree is maintained only if a join override message is received from another downstream router in the multi access LAN Otherwise the tree is pruned after the LAN prune delay interval The default LAN delay flag is in the enabled state The default value of the LAN prune delay is 0 seconds Supermicro switches provide flexibility for users to configure different LAN prune delays on different interfaces Follow the steps

L2 / L3 Switches Internet Protocol IPv6 Configuration

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