HP ProCurve 9304M User's Manual
Contents
1. eese 8 PA MB TUI NI eI 8 jn M 9 2 2 1 Hardware Architecture Summaty 5 0 0 toD pra oai EErEE Ooa IEEE TE SpE RE He iR 9 22 2 Packet PrOCeSSOE i reti E e CURA E E ERR ERI t UT PARERE DR 9 2 2 3 Shared Memory ete me Drei ponet epe reed 9 2 2 4 Forwarding Engine conce sev tp ete e E REED ETUR UR DNE UR IDE UE DI 9 2 2 5 Priority Queues t hebtesimeeeptatire pee Di nep E 10 2 2 6 System Management Interface ee r A E E E E R A E RRN ES 10 2 2 7 Backplane Design 25 kne A Se he RS A ee he ee Re 10 PS Layer AIN TO RAIU POETA TETTE EE 10 2 3 1 d 11 PAD REID C aaea 11 2 3 3 Pdl c EL ty 11 DAs UOS E E EEE E EET EE EE 12 2 4 1 TEEE 8023 Flow Controlia ini e aE EERE EE E E E ERE E i 12 2 4 2 IEEE 802 1p Priority Support sietas enoe aner or Ree S E SEIERE EO RERO RU RU Met eMe RESINS oe 12 2 4 3 Multicast Support npe di eH HRS IRA E E ae eee e He AR ERE et 12 2 3 1 DVMBEP uuo ated eg hee ph qua ie ete e uae atria ene Ue idees 12 2 4 3 2 PIMPE treu eter ette du o tense tee Decio te CURE PEOR E SER EP CE easton seats 12 prn scs AOM P E oos ove Soe See heehee tts Sees woah tae eee coe eel et ties bs 13 224 3 4 IP Tunneling ss zip ieee etl ne ae dees eet erae po ttes oce ei E eos2. 18 2 10 1 MIB S pport oce nee ee Ptr rette one ce beg e REN AUR PERS Ee UO ema O E ER SEE TS exte 18 2 10 2 RMON SUpport aee e Ue nete tentes Mete EPI EO Me tee pedes Meer PIE ee ets leat 19 2 10 3 Network Monitoring Portner e ee enne tene tene tren E OSESE eE enn eene enne 19 2 10 4 Console Support eee eR eH Une Rd em benedi HIR Oe eee 19 2 11 Some 9304M 9308M Routing Switch Maximus eese eee esee eene tn einen instat tata sta satiata sine sa tasas setas in etn tn an 20 3 PERFORMANCE TES TUNG wis eiii stietpainiedi eite didedad edc ond adtbdede bns ubl fade fbi ubt bla 21 3 1 Throughput Packet Loss Rate eese eese eee ee ee esee ee seen sten etna to neto aetas etas e ease ta seta sete sete sene sss so sete setas etas etas e tasto sta 21 3 2 Congestion NT M 22 3 2 1 Head of lme blocking nitet eoe tete eere ther re ere Oed DR HEU PR e reb thesi 22 3 2 2 Bi directional Congestion Testing X Stream sssssesseseeseeeeen eere enne tenen reete enne 22 KE 22 4 ADDITIONAL INFORMATION eeeeeeeeeeee eene nnn nennen nnn nnnnn nnne nana nans s nhan entren nns 24 4 1 ProCurve Networking Web Site eere ee eese eese eese eee etes tenen neta setas eta seta seta sete sete see sss eese ease ease ease ease tasto sea 24 42 Resel
3. switch matrix allowing packets a direct path to their destination Slot 1 module Each module in the chassis has an 8 Gbps path in both 8 Gbps fdx directions to this matrix The advantage of a crosspoint matrix is that all modules can send Slot 2 Slot 3 packets to every other module simultaneously The crosspoint matrix can handle about 22 Mpps in the 9304M and 44 Mpps in the 9308M Slot 4 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 10 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 3 Layer 3 Services Routing for both IP and IPX is done in ASIC hardware at wire speed AppleTalk routing is done by the processor at a rate up to 300 000 pps Routing services can be applied two different ways The router is directly assigned to specific ports these ports look like traditional router ports where each port is in its own IP subnet or IPX network e A group of ports are assigned to a VLAN and tied to a virtual router interface inside the routing switch externally these ports are switched together since they are in the same VLAN and are all in the same IP subnet or IPX network Internal to the routing switch they are tied to the routing service through the virtual router port without the loss of an external port Groups of these VLANs can communicate with each other through their virtual internal router interfaces Sixty virtual router in
4. Port numbers or ranges of numbers ftp http etc Allows a remote IPX client access to a restricted Specific RIP routes inbound APESE Specific advertised RIP routes outbound Specific RIP routes inbound RIP redistribution conversion of OSPF routes to Specific advertised RIP routes outbound RIP OSPF redistribution conversion of RIP routes to Specific advertised SAP routes 128 filters max OSPF per chassis AppleTalk Filters Zone filters ability to filter resource access from other zones Network filters Specific advertised zones in the routing packets 2 8 Flexibility The HP ProCurve routing switches have been designed with flexibility and high port density in mind Any module type can be plugged into any of the module slots The only requirement is that one and only one module with management must be installed The modules are hot swappable Available module types are e HP ProCurve 9300 10 100 Module 24 port e HP ProCurve 9300 10 100 Management Module 16 port e HP ProCurve 9300 100Base FX Module 24 port MT RJ connectors MT RJ is a new connector type that allows full duplex 100Base FX connections in the same space as a RJ 45 connection Adapter cables for SC to MT RJ conversion are available from 3 party sources e HP ProCurve 9300 Gigabit SX Module 8 port SC connectors e HP ProCurve 9300 Gigabit SX Management Module 8 port SC connectors Works with 62 5 125 multi mode fiber cable a
5. MIBs are also supported for such things as VLANs and multiple bridge groups 2 10 2 RMON Support For those customers that use RMON applications the HP ProCurve Routing Switch 9304M 9308M support RMON groups 1 Ethernet statistics 2 Ethernet history 3 Alarm and 9 Event These four groups are available for all ports The Ethernet statistics group provides counters for packet counts broadcast multicast packets packet length counts missed packets and erred packets Event and Alarm groups allow threshold setting and alarm generation based on the counters in the Ethernet group History accumulates two records for each port one a sampling of Ethernet statistics taken every 30 seconds and the other a sampling of statistics taken every 30 minutes 2 10 3 Network Monitoring Port If more RMON groups such as packet capture are desired a RMON probe can be attached to one of the HP ProCurve Routing Switch 9304M 9308M ports and Port Monitoring can be configured into the routing switch Port Monitoring allows the end user to copy all traffic inbound outbound or both from any number of ports even those on different router ports to a single destination port This allows the probe to see all traffic on the selected ports to provide the probe with the proper global perspective LAN analyzers can also use this feature when doing specific monitoring or troubleshooting of network segments 2 10 4 Console Support Out of band management
6. Qtag IP protocol IP subnet NetBIOS IPX network number AppleTalk Decnet Other VLANs can overlap on a single port For example it may be advantageous to have a server connected through a single port to be a member of two different VLANs such that two different groups of PCs can access the same server but the two groups of PCs cannot talk directly with each other Port based VLANs can be further subdivided by using protocol VLANs Protocol VLANs establish packet membership based on the packet s IP subnet number IPX network number etc Since a packet could be part of several VLANs simultaneously there is a hierarchy of VLAN ownership Port based VLANs are the lowest level Layer 3 protocol based VLANs IP IPX AppleTalk DECnet and NetBIOS are in the middle IP sub net and IPX network number VLANs are at the top VLANs can also be assigned to the virtual interfaces of the router in the routing switch This provides a means of communication between two VLANs VLANs defined only on switched ports within the routing switch cannot talk to each other without going through the router 2 5 1 IEEE 802 1Q VLAN Support The HP ProCurve routing switches support the IEEE 802 1Q VLAN tagging standard The routing switches can have multiple VLAN traffic share a single physical link 802 1Q also allows interoperability at this level between different vendors in a standards based way Ports with only a single VLAN designation can be designated a
7. Switch 9308M is twice as large as the HP ProCurve Routing Switch 9304M to handle up to double the number of packets expected from the eight slots versus the four slots in the 9304M The HP ProCurve Routing Switch 9304M has two slots for the load sharing power supplies One supply ships with the 9304M and can power a fully loaded chassis The HP ProCurve Routing Switch 9308M has four power supply slots available a minimum of two supplies supplied are needed to run a fully loaded chassis A third and or fourth power supply can be installed for redundancy and longer expected overall power supply life Overall the hardware is designed to provide a non blocking architecture so that the HP ProCurve routing switches can easily sit in the middle of a medium to large enterprise campus providing the traffic forwarding performance needed The HP ProCurve routing switches allow 64 000 MAC addresses Boot time from a cold start is lt 10 seconds 2 2 2 Packet Processor Each port on a module has a packet processor associated with it The packet processor is responsible for reading into the packet headers so that forwarding decisions can be made based on the Layer 2 Layer 3 Layer 4 and filtering requirements The packet processor then generates a forwarding identifier FID that defines destination port port mirroring requirements packet type VLAN affiliation prioritization and other parameters If processor based functions are needed such as AppleTa
8. applications can be prioritized as appropriate For example http traffic could be prioritized lower through the switch or data involved in backups prioritized higher 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 13 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 4 4 2 Layer 4 Filtering The 9300 routing switches can filter based on IP addresses IP port number and IPX network number More details are given later in the Filtering section These filters can be used in permit or deny situations allowing fine tuning of traffic based on Layer 4 information 2 5 VLANs A Virtual LAN is a logical collection of ports or nodes that belong to a single broadcast multicast domain VLANs were originally devised as a solution to limit the size of any one broadcast domain to allow scaling of switched environments With the advent of routing switch solutions however use of VLANs in end user environments is now largely done for network policy or security reasons VLANs are also used in the HP ProCurve routing switches to establish groups of ports that are switched linked to the router through a router virtual interface See the Layer 3 services above for a more detailed explanation The HP ProCurve routing switches support up to 4096 VLANs 8 default although normal VLAN usage is usually less than twenty VLANs VLAN membership can be designated through any one of the following A particular port port based A802
9. avis 13 2 4 4 Layer A Features eo BRE ERRU US eet tt to tete poi e a et ae 13 2444 Priority Queues c ona E E E E E as laches a atte pee eoi eS teg tee es 13 2 4 4 2 Layer4 Eiltetimng z onere orto etis cous metr re eei re ette teure Rd 13 pA EDU Er EE E 13 2 5 1 IEEE 802 1Q VLAN Support visit rit tre E De lassie EEO ETE R E E D br epe herbe 14 2 5 2 IEEE 802 1D Spanning Tree Protocol eite teneret hii erit sr EE rE E EEE eset 14 2 6 Port Trunking Link Aggregation sssscsssscscsssssssssssscesssssescssssssessssssessssnesecsnessossessnssssscesssssessesenesssssesseses 14 P EB wlucelrdento rer 15 2 7 1 Layer 2 Filtering ee raea erana a ROT E aaa AEE D DE HB inr Eie 15 2 7 2 Lay r3 and L yer4 Filtern mde ch tee pbi Ta a et buenisimo 16 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 2 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide PARE S a AAEE eee E 16 pA MED d 16 2 9 1 Lifetime Software Updates Best in the Industry sess 17 2 0 2 Warranty One Yea tek E ORE EE REP E Perieg iret 17 2 9 3 Availability eee ere eie E E tends sigh cvetuanshsahetade t Les D ELO eph erbe EO ERU pens 17 2 9 4 Service and SUpport 5 b Set Ee ertet e E C SAGO tds ah tanh eons REOR UNUS ee nets 17 2 9 5 Year 2000 Compliance 1 item E e RU rb Ed e Ee Ho evs costo Eee e ee e S Mee rue ret 18 2 10 Network Management R
10. environments See the TopTools web site at http www hp com toptools for more details SNMP version 2 is supported HP has made every effort to ensure the accuracy of our product testing However because each customer s environment is different from HP s laboratory test environment it is the customer s responsibility to validate the Year 2000 readiness of these products in their own environment Therefore information about the Year 2000 status of HP products is provided as is without warranties of any kind and is subject to change without notice HP makes no representation or warranty respecting the accuracy or reliability of information about non HP products Such information if any was provided by the manufacturers of those products and customers are urged to contact the manufacturer directly to verify Year 2000 readiness The information provided here constitutes a Year 2000 Readiness Disclosure for purposes of the Year 2000 Information and Readiness Disclosure Act 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 18 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 10 1 MIB Support The HP ProCurve Routing Switch 9304M 9308M supports the following standard MIBs MIB II RFC 1213 Ether like MIB RFC 1398 Bridge MIB RFC 1493 Ethernet like MIB RFC 1643 RMON MIB RFC 1757 Groups 1 Ethernet statistics 2 Ethernet history 3 Alarm 9 Event In addition a number of enterprise specific
11. of HP routing switches can be done through the RS 232 console port via a directly connected terminal emulator The console interface provides a command line interface to all configuration parameters The console interface is also available in band through the telnet service The RS 232 cable necessary to connect with the 9304M 9308M is a straight through type and is supplied with the routing switch It is a different cable than that used with other HP switches The RS 232 port is not speed sensing Default configuration is set at 9600 baud 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 19 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 11 Some 9304M 9308M Routing Switch Maximums Parameter Maximum Value Default Value MAC addresses 32 000 16 000 Port VLANs 4096 8 All filters System 1024 Interface 128 Layer 3 VLANs 1 024 32 Layer 4 sessions 4096 512 Virtual router interfaces 9304M 60 9308M 180 ARP entries 16 000 4 000 IP cache size 64 000 16 000 IP routes 220 000 OSFP 16 000 RIP 40 000 IP route filters System 1 024 System 64 Interface 128 Interface 32 Static routes 256 16 IGMP groups 1 024 255 DVMRP routes 64 000 2 048 PIM routes 64 000 16 000 IPX SAP entries 8 192 4 096 IPX RIP entries 8 192 2 048 IPX SAP filters 128 32 IPX RIP filters 128 32 IPX forward filters 128 32 AppleTalk routes 3 072 512
12. 9308M 9304M Reviewer s Guide All HP routing switches ship with HP TopTools for Hubs amp Switches Prod No Description US List Price March 1 1999 J4139A HP ProCurve Routing Switch 9304M chassis 7 999 Includes 4 open module slots J4138A HP ProCurve Routing Switch 9308M chassis 15 999 Includes 8 open module slot J4140A HP ProCurve 9300 10 100 Module 12 999 24 autosensing UTP ports J4141A HP ProCurve 9300 10 100 Management Module 10 999 16 autosensing UTP ports J4142A HP ProCurve 9300 100Base FX Module 24 999 Includes 24 100Base FX ports MT RJ connectors J4143A HP ProCurve 9300 Gigabit SX Module 25 999 8 multi mode fiber ports SC connectors J4144A HP ProCurve 9300 Gigabit SX Management Module 26 999 8 multi mode fiber ports SC connectors J4145A HP ProCurve 9300 Gigabit LX SX Module 28 999 8 multi mode fiber ports SC connectors J4146A HP ProCurve 9300 Gigabit LX SX Management Module 29 999 8 multi mode fiber ports SC connectors J4147A HP ProCurve 9300 Redundant Power Supply 2 999 D7118A HP TopTools Value Pak 999 Allows TopTools management of 5000 nodes up from standard 1500 nodes 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 25 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 6 Appendix A Performance Figures These numbers have been generated by Hewlett Packard using two Ixia 1600 testers from Ixia Communications Ixia testers are used by a number of ne
13. AppleTalk zones System 1024 System 256 Interface 255 Interface 64 Number of Trunks 9304M 22 9308M 46 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 20 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 3 Performance Testing Routing switches are normally performance tested under a variety of conditions at Layer 2 and Layer 3 for three main parameters throughput packet loss rate congestion control and latency Definitions for throughput packet loss rate and latency are specified in RFC 1242 See http www rfc editor org Unfortunately there is no clear definition for congestion control There are numerous tests that test different aspects of congestion control none of which is considered the definitive test for congestion Keep in mind that most of these tests are performed in an artificial environment intended to measure the outer limits of routing switches and rarely if ever reflect circumstances a switch would consistently find in an actual network environment This is particularly true for congestion type testing The applicability of these performance numbers to real world networks has to be interpreted carefully as most routing switches in these tests perform to a level significantly exceeding the needs of real world networks Additional comments on each of the parameters follows 3 1 Throughput Packet Loss Rate One of the major advantages that ASIC based routing switch
14. Backplane 6 1 2 1 Gigabit SX ports Port pairs active full duplex 64 64 Gbps data out of the tester Test length 10 seconds Packet size bytes 64 128 256 512 1024 1280 1518 Total Packets sec 86 956 544 54 054 080 28 985 536 15 037 568 7 662 848 6 153 856 5 201536 Percentage 91 3 100 0 100 0 100 0 100 0 100 0 100 0 6 1 2 2 100BT Port pairs active full duplex 188 18 8 Gbps data out of the tester Test length 10 seconds Packet size bytes 64 128 256 512 1024 1280 1518 Total Packets sec 27 976 280 15 878 480 8 514 520 4 417 436 2 250924 1 807 808 1 528 064 Percentage 100 0 100 0 100 0 100 0 100 0 100 0 100 0 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 26 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 6 1 3 Latency Test Unicast Traffic Packets Within the Modules 6 1 3 1 Gigabit SX ports Port pairs active 64 Latency test length 10 seconds Port Pair Latency in microsec Us Packet size bytes 64 128 256 512 1024 1280 1518 Average of all ports 7 01 7 58 9 63 13 58 21 55 25 52 29 32 FIFO 6 50 6 56 7 58 9 48 13 36 15 28 17 18 LIFO Calculated 6 1 3 2 100Mbps Port pairs active 188 Latency test length 10 seconds Port Pair Latency in microsec ps Packet size bytes 64 128 256 512 1024 1280 1518 Port 1 to 2 FIFO LIFO Calcula
15. HP ProCurve routing switches support four levels of priority through multiple priority queues each module keeps See the priority queue discussion in the previous section for more details on the handling and mapping of the priority queues These priority queues allow the 9304M 9308M to be responsive to time sensitive applications that use the priority field in packet tagging Priority of packets can be given specific values based on their inbound port VLAN affiliation or MAC address This allows the network manager to better manage the traffic through the switch giving priority to packets that contain time sensitive data without involvement of the end nodes The 9300 routing switches can work in concert with the other HP managed switches to provide an end to end QoS solution The HP desktop and local backbone switches with firmware code C 07 01 or later can use the IP address VLAN affiliation or IP TOS type of service field of the packet to set a value for the 802 1q priority bits As noted above the 9300 routing switches can read these bits and prioritize the packets appropriately through the routing switch Through the combination of the HP desktop and local backbone switches and the 9300 routing switches packet priorities can be established end to end in the local LAN environment without any end node interaction 2 4 3 Multicast Support The routing switches support three areas of multicast packet management DVMRP PIM and IGMP DVMRP
16. K HEWLETT PACKARD D O D ACNEE Hubs amp Switches HP ProCurve Switch Routing Switch 9304M HP ProCurve Switch Routing Switch 9308M Un L Date 4 1 1999 QD Version 4 0 gt D L HP ProCurve Routing Switch 9304M Less Work More Network HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide Table of Contents As BACKGROUND er meme 4 1 1 HP S Proactive Networking sciscssscsserscseassotssonsesesscsansessotentsasesscsnecoeseseceocsesessosvetadeassonnsesenbsseasoetessasenissensscdecansessee 4 1 2 What is a Routing Switch wccicssscsssssssaceesscesscsses 4 13 Hewlett Packard Switch Products sscssssssssssssssssssssessessssessssssessessssessssessessssessessssessessssessesesseseessssessesessesserees 4 1 3 1 HP ProCurve Routing Switches Covered in this Guide sse 4 1 3 2 Other Switches Available From HP u 0 cc ceecceessceseeceseceeeeceseeeesseceeeeenaeceeeeeesaecseceecsaeceeeeceaeeseeeeeesaeceeneeeaeeenees 5 1 4 HP Switch Positioning sscssssssscssrssrssssssessssessssrsessessssessessrsessessssessessssessessssesessesscssaseesessasessessasesseseaseesessesees 7 1 4 1 Positioning for the HP ProCurve Routing Switch 9304M esses nennen enne nennen enne 7 1 4 2 Positioning for the HP ProCurve Routing Switch 9308M sese enne enne enne neni 7 2 EVALUATION FEATURES AND BENEFITS
17. O basis To convert FIFO to LIFO results the time associated with the packet itself must be subtracted out For 10Mbps Ethernet frames the following formula can be used LIFO FIFO packet length bytes 8 psec For 100Mbps Ethernet the formula is LIFO FIFO packet length bytes 08 psec For Gigabit Ethernet the formula is LIFO FIFO packet length bytes 008 psec Latency is usually measured with the NetCom SmartBits or Ixia 1600 testers special purpose test units that can measure latency down to the nearest bit time for the technology under test In normal testing latency should be measured for a variety of packet sizes and all ports should be tested since latency being sensitive to the architecture of the switch can vary from port to port As show by the figures in Appendix A latency for the HP ProCurve Routing Switch 9308M and 9304M is excellent at around 7 17 psec for packets forwarded on the same module and 10 5 21 psec for packets that flow across the backplane The difference in the on module latency versus the across the backplane latency is the time it takes to actually traverse the backplane and get stored on the target output module Either way these latencies are outstanding very low And these latencies are with routing active The architecture of the HP ProCurve routing switches lead to the same packet latencies whether the routing switch is routing IP or IPX or Layer 2 switching the packets
18. addition to free support services such as the warranty and telephone support HP offers an extensive range of fee based support services to meet more specialized needs With the likelihood of the routing switches being installed at the core of the network an on site service upgrade is highly recommended 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 17 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide On site upgrades to either business day four hour support or 24X7 four hour support can be purchased through HP Other fee based services available that are highly recommended are hardware support contracts to cover the routing switches when they are no longer in warranty and extensions to the basic phone support to cover network troubleshooting either during regular business hours or 24X7 Hewlett Packard can also provide site surveys installation services and actual management of the network depending on customer needs More information can be found at http www hp com rnd support support htm or by contacting the local HP sales office 2 9 5 Year 2000 Compliance The HP ProCurve Routing Switch 9304M and HP ProCurve Routing Switch 9308M are both Year 2000 compliant Refer to http www hp com year2000 compliance html for HP s Year 2000 compliance definitions 2 10 Network Management Network management is an important part of a network solution There are three levels of net management available fo
19. and PIM are routing protocols used to set up the route trees through the network for multicast groups when multiple routes exist IGMP is used where there are not multiple paths such as at Layer 2 or in a single or dual router environment and can work in conjunction with either DVMRP or PIM since these protocols will establish a single path for any one multicast stream DVMRP and PIM each tied to different ports can run concurrently in the same routing switch 2 4 8 1 DVMRP Distance Vector Multicast Routing Protocol DVMRP is a protocol similar to RIP in that builds its own multicast routing table in conjunction with other routers in the network DVMRP uses this table to Available June 1 1999 Available for download at no cost to present switch owners 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 12 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide generate multicast path trees through the network so that a particular multicast stream is only sent on links that ultimately reach a receiver of that stream This prevents multicast streams from being sent to parts of the network where it isn t needed DVMRP builds and maintains a separate multicast tree for each of the offered multicast streams 2 4 3 2 PIM Dense Protocol Independent Multicast PIM is very similar to DVMRP except that it uses the IP routing table of the switch rather than build its own table Since it doesn t build a table directly it d
20. anytime anywhere configuration access HP TopTools for Hubs amp Switches standalone seamless integration with HP OpenView NT Integration into HP OpenView UX with option HP Hub amp Switch Management for HP OpenView UX SNMP MIB II RMON support on all ports for monitoring and control Ability to configure a network monitoring port for use with external probes or analyzers e Spanning Tree Protocol 802 1D support one instance per VLAN e Year 2000 compliant 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 8 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 2 Architecture 2 2 1 Hardware Architecture Summary The HP ProCurve Routing Switch 9304M has 4 identical slots while the HP ProCurve Routing Switch 9308M has eight Any of the modules can be put in any of the slots The only rule is that there must be one and only one card with the management function installed in the chassis While there are managed versions of each of the different modules available except for the 100Base FX module it is best to have management on a Gigabit card as there is no loss of actual ports The managed version of the 10 100 card on the other hand has only 16 ports on it compared to the 24 ports on the unmanaged card Each of the modules which is based on a shared memory structure is interconnected through a backplane using a crosspoint matrix interconnect The crosspoint matrix in the HP ProCurve Routing
21. because these functions are done in the module ASICs Multicast packets are handled in hardware incurring the same latency as unicast packets For those packets handled by the processor such as AppleTalk packets or broadcast packets the latency will run about 190 200 psec still a very respectable figure particularly when compared to the much longer latencies usually seen for all packets in the traditional processor based router 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 23 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 4 Additional Information 4 1 ProCurve Networking Web Site Additional information including the latest data sheets design guides white papers product documentation and support information can be obtained through the HP ProCurve Networking web site HP ProCurve Networking can be reached at http www hp com go procurve 4 2 Reseller Plaza The dedicated reseller web site for HP Networking products can be reached either through the ProCurve Networking site or directly at http www hp com go sellprocurve Admission to the reseller site requires registration 4 3 White papers White papers covering some of the technical details described here in more detail can be found in the Technical Library section of ProCurve Networking at http www hp com rnd techlib techlib htm 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 24 of 27 HP ProCurve Routing Switch
22. ckard routing switch products HP ProCurve Routing Switch 9308M A feature rich modular 8 slot chassis based routing switch delivering 96 million pps performance with up to 64 Gigabit Ethernet ports or up to 188 10 100 Mbps autosensing ports Routes IP IPX and AppleTalk This product is ideal for large networks and provides high performance as a collapsed backbone Modules available are e HP ProCurve 9300 10 100 Module 24 port e HP ProCurve 9300 10 100 Management Module 16 port e HP ProCurve 9300 100Base FX Module 24 port MT RJ connectors e HP ProCurve 9300 Gigabit SX Module 8 port SC connectors e HP ProCurve 9300 Gigabit SX Management Module 8 port SC connectors e HP ProCurve 9300 Gigabit SX LX Module 4 ports SX 4 ports LX SC connectors e HP ProCurve 9300 Gigabit SX LX Management Module 4 ports SX 4 ports LX SC connectors HP ProCurve Routing Switch 9304M A feature rich modular 4 slot chassis based routing switch delivering 48 million pps performance with up to 32 Gigabit Ethernet ports or up to 88 10 100 autosensing ports This product is ideal for medium to large networks and provides high performance in collapsed backbones data centers and server farms Has the same architecture design and uses the same modules as the 9308M 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 4 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide Pricing for each of these switches and modules is given
23. ept for 64 byte packets where throughput is 91 396 of wire speed This is due to the crosspoint matrix handling of 86 956 544 pps maximum Note that this is a number of packets distinction not data throughput At larger packet sizes where the actual number of packets is less the data rate through the backplane is at full wire speed While this is a limitation in the total throughput of the routing switch this only happens when all packets cross the backplane all packets are 64 bytes in length and all ports are receiving packets at wire speed full duplex simultaneously This situation only happens in a testing environment If it happens momentarily in a real network the excess packets would be buffered in the modules shared memory until the condition let up or shared memory became full To put this into perspective if the average packet length through the routing switch exceeds 88 bytes or if only 6 of the 8 gigabit ports on the modules have packets that cross the backplane the backplane will run at full media speed This clearly is not a limitation when dealing with real network environments This limitation is exactly the same for the 9304M Since its crosspoint matrix is one half the size of the 9308M the matrix can handle 91 396 of media speed at 64 byte packets The same comments given above as to why this really isn t a problem in real environments also holds for the 9304M 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 21
24. es have over the traditional processor based routers is that routing can be done near or at wire speed on all ports simultaneously for a cost considerably less than with a traditional router The throughput numbers given in Appendix A are shown for Gigabit SX and 100Base TX The first table shows the situation where the packets don t have to leave the module they came in on Since each module in the 9300 routing switches routes on the module itself this first table shows throughput without any packets traveling the backplane As shown in the table the 9308M produces complete wire speed routing on all ports simultaneously The maximum number of packets per second that can travel through the routing switch is also shown in the 64 byte packet size column at 95 238 080 Although not explicitly measured this figure would be 47 619 040 for the 9304M one half the rate of the 9308M This figure was measured with the routing switch routing IP It would be the same for IPX routing or just switching at Layer 2 The numbers for 100Base T are full media speed as well but since the maximum number of packets that can be introduced to the switch is limited by the total number of ports possible at 18 8 Gbps 27 976 280 pps the routing engines are not taxed at all in this situation In the situation where the throughput test is set up such that the destination for all packets requires a trip across the crosspoint matrix backplane throughput is at wire speed exc
25. h 9304M and HP ProCurve Routing Switch 9308M meet all these needs providing a stable resilient non blocking backbone The HP ProCurve routing switches are well complemented by the Layer 2 HP ProCurve switches that do the wiring closet server farm and desktop aggregation uplinking to the routing switch through either Gigabit Ethernet or 100 Mbps links or trunks DERI DEI E X172 AD 9304M 9308M 10 100 Gigabit ims Routing Switches 8000M 1600M PS cooomeagzam 0200 Gigabit 1 21 OOmbps 10 100mops S u Switches with optional Gigabit uplink Increasing Performance HP Network Design Center factory based full service lt i Wiring Closet D Backbone p 1 4 1 Positioning for the HP ProCurve Routing Switch 9304M The HP ProCurve Routing Switch 9304M is a feature rich modular chassis based Layer 3 routing switch that delivers 48 million packets per second performance for up to 32 Gigabit ports or 88 10 100 Mbps ports Layer 4 controls are also available allowing tuning of packet streams based on Layer 4 information without needing the cooperation of the end nodes Port flexibility is provided through the modular design with modules available for 10 100 UTP autosensing connections Gigabit SX and LX connections and 100Base FX connections Designed for medium to large networks the HP ProCurve Routing Switch 9304M provides non blocking high performance Layer 3 routing in collapsed backbones data cen
26. h the HP ProCurve Switch 8000M above Same software feature set as the Switch 8000M Ideal for server farm connectivity HP ProCurve Switch 4000M The HP ProCurve Switch 4000M is a modular switch that comes standard with 40 10 100 Base T UTP autosensing ports with five open slots for additional modules The HP ProCurve Switch can support up to 80 10 100 autosensing 10 100Base T ports uses the same modules as the Switch 8000M and is ideal for scaleable expandable low cost migration to 10 100 desktop switching for smaller groups of users HP ProCurve Switch 2424M The HP ProCurve Switch 2424M provides 24 fixed 10 100 Base T autosensing ports and one expansion slot that accepts any of the 8000M 1600M 4000M modules There is also a HP ProCurve Switch 2424M Stacking Module available that provides two full duplex transceiver based Gigabit ports Transceivers available are Gigabit SX and LX and a Stacking Kit that provides a low cost stacking connection between HP ProCurve Switch 2424Ms The HP ProCurve Switch 2424M is ideal for low cost migration 10 100 desktop switching for smaller groups of users HP ProCurve Switch 2224 Fixed configuration unmanaged desktop switch with 24 autosensing 10 100 Mbps ports one of the UTP ports can be used as a 100Base FX port with the addition of an optional transceiver HP ProCurve Switch 212M Fixed configuration top of stack switch with 12 10Mbps Ethernet ports and 2 100Base T ports one fixed TX and one tra
27. ice once the routing switch is out of warranty See the Support and Service section for more details 2 9 3 Availability Availability is the measure of the ability for the switch to remain running over a period of time with minimal impact to the network environment Both the 9304M 9308M allow hot swapping of the port modules while the switch is still running without affecting the other port modules This allows a defective port module to be replaced without affecting the rest of the network Optional redundant power supplies identical to the primary supply s can be installed The 9304M allows one extra power supply The 9308M allows up to four supplies to be installed with at least two supplies at a minimum required All power supplies load share allowing both supplies to run cooler extending their Mean Time Between Failure MTBF values If any of the supplies in a chassis with extra supplies 2 in the 9304M 3 or 4 in the 9308M does fail the others continue to run preventing switch interruption Power supplies can be hot swapped unplug it first during switch operation when extra supplies are present Each supply has its own power cord The chassis fans are also hot swappable 2 9 4 Service and Support HP provides free pre sales and in warranty post sales installation and basic configuration telephone support during normal business hours to end users and HP resellers through the HP Customer Care Centers located world wide In
28. in section 5 1 3 2 Other Switches Available From HP Below is a complete list of switches available from HP Separate Reviewer s Guides are available for the HP ProCurve Switch 8000M 1600M HP ProCurve Switch 4000M 2424M and the HP AdvanceStack Switch 2000 800T switches All managed HP switches include embedded Web based management and the HP TopTools for Hubs amp Switches network management application HP ProCurve Switch 8000M A modular 10 slot mini chassis backbone Layer 2 switch that provides high 10 100 autosensing port density up to 80 and also provides multiple Gigabit and 100Base FX fiber optic port connectivity Advanced software features include Switch Meshing and Cisco Fast EtherChannel support Excellent as a small backbone switch Modules available are e HP ProCurve Switch 10 100Base T module 8 autosensing 10 100 Ethernet UTP ports e HP ProCurve Switch Gigabit SX module 1 1000Mbps multi mode fiber optic port e HPSwitch Gigabit LX module provides 1 1000Mbps multi mode or single mode fiber optic port Fully adheres to the IEEE 802 3z specification HP ProCurve Switch 100Base FX module 4 100Mbps multi mode fiber optic ports e HP ProCurve Switch 10Base FL module 4 10Mbps multi mode fiber optic ports HP ProCurve Switch 1600M A fixed port switch with sixteen fixed 10 100Mbps autosensing ports and one expansion slot primarily for Gigabit connectivity but will accept any of the modules listed wit
29. kground This Routing Switch Reviewer s Guide will help network testing engineers at computer trade publications resellers and end user sites evaluate the merits of the HP ProCurve routing switches 1 1 HP s Proactive Networking HP proactive networking is an extensible line of products working together to provide the control network administrators need to deliver the network uptime and performance that their organizations require This guide describes one part of HP proactive networking the HP ProCurve Routing Switch 9308M and HP ProCurve Routing Switch 9304M products 1 2 What is a Routing Switch A routing switch combines the speed and low cost of a Layer 2 switch with the ability to route at Layer 3 Unlike traditional routers which are processor based a routing switch does its routing in hardware at or near wire speed for IP Some routing switches such as the HP ProCurve routing switches also route IPX in hardware In addition HP ProCurve routing switches provide processor based AppleTalk routing Each port on the routing switch can be routed or combinations of ports can be switched with the port groups tied to virtual router interfaces inside the routing switch Itis this combination of high speed flexibility and low cost that make routing switches very attractive for local LAN environments 1 3 Hewlett Packard Switch Products 1 3 1 HP ProCurve Routing Switches Covered in this Guide This guide covers the following Hewlett Pa
30. ler Plaza 24 4 3 White papet S Pp 24 LEM discere erc 25 6 APPENDIX A PERFORMANCE FIGURES eeeeeeeeeeeeeeeeeeene nennen nnns 26 6 1 HP ProCurve Routing Switch 9308M eee eee e eee estes eene senta sten tn seta tne ta sens enses suse ta suse ta sene en sesta sss en aen 26 6 1 1 IP Routing Throughput Test Packets Within Modules eese nennen 26 6 L JL Ougabit SX ports ener e Dt tee ORI OPIHPR DR IRE 26 6 1 E2 100BT inu thep hohe pf butts iR TE n tu E ate op PR 26 6 1 2 IP Routing Throughput Test All Packets Across the Backplane eese 26 6 L2 Oigabit SX ports ete abt teense eene ORCI ED Rd 26 6 22 100BT 5 5 the teBertte ti m e ORE rm te ran nte o E 26 6 1 3 Latency Test Unicast Traffic Packets Within the Modules essen 27 6 1 3 1 Gigabit SX ports eene eo apane arrea pe tUe Dre EURO RERO RR 27 6 53 22 TOOMBPS sisi iren eor HERE o RR eet Op ide 27 6 1 4 Latency Test Unicast Traffic Packets Across Backplane ssseeeeeeeeeneene nennen 27 6 144 Gigabit SX ports is Shak te ae ees Seow eee Re deck en betes eae i eh od ee Reed 27 6 129 POOMDDS n o corem Seah uL ERU mL a crane pre A EATEN Ae RD LIU 27 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 3 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 1 Bac
31. lk routing that is also determined The packet processor also modifies the bits in the packet as required for routing such as time to live TTL MAC addresses and checksums If Layer 4 information is to be processed that is also determined at this point with the FID modified as necessary Once the FID has been determined for a packet it is stored in a cache area that is managed by the management board Actual movement of the packet through the routing switch data pathways is specified by the FID resulting in the packet making it s way to the proper output port s of the routing switch 2 2 3 Shared Memory Modules are based on a shared memory architecture Packets are buffered on the module in this shared memory area The pipeline to from the packet processors to the shared memory has a 64 Gbps throughput The actual data rate through this switch fabric is 32 Gbps since in shared memory designs the packet has to travel the fabric twice once inbound and once outbound The 32 Gbps is ample as the maximum data rate the shared memory will see is 16 Gbps 8 Gbps from the ports and 8 Gbps from the backplane The packet is managed in shared memory through a shared memory identifier SMID This shared memory area size on the module is 2 to 8 MB depending on the module type 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 9 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 2 4 Forwarding Engine The forwardi
32. n other HP ProCurve switches use the DA destination address setting These trunks are also compatible with Cisco Fast EtherChannel trunks use the server form of the trunk on the 9304M 9308M and turn PAgP off on the FEC side 2 7 Filtering Both the HP ProCurve Routing Switch 9304M and HP ProCurve Routing Switch 9308M support a variety of Layer 2 and Layer 3 filters With the exception of AppleTalk and broadcast packets filtering is done in hardware so there is no performance penalty for using filters With filter hierarchy defined by the user filtering is very flexible All filters can be specified for individual ports groups of ports or globally This flexibility allows definition of very specific rules for how a packet should be handled Filter maximums 1024 per chassis 128 on any one port 2 7 1 Layer 2 Filtering Filters at Layer 2 are nbound and or outbound MAC addresses Frame types The frame type field can be used to filter on Layer 3 protocol types without having the router functionality of the routing switch involved 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 15 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 7 2 Layer 3 and Layer 4 Filtering At Layer 3 and Layer 4 these filters available are IP Filters IPX Filters Inbound and or outbound IP addresses nbound and or outbound IPX addresses Protocol types UDP TCP etc Inbound and outbound forward filters
33. ng engine a custom ASIC present on each module uses the information in the FID to actually move the packets to and from either external ports or the backplane switch fabric via the shared memory The forwarding engine also determines the priority queue described in the next section designation for outbound packets The forwarding engine has its own separate data path to the packet processors to make packet processing time as short as possible 2 2 5 Priority Queues Priority queues form part of the QoS implementation in the routing switch Each external port on a module has 4 priority queues that define the order outbound packets will be sent to that port There are also 4 priority queues on the module for each of the other modules installed in the chassis These are used for packets destined to travel the backplane to another module The priority queues themselves only contain the SMIDs as pointers to the actual packets in shared memory These priority queues map into the priority designation of 802 1p Since 802 1p has 8 levels of priority possible 802 1p priority levels 0 and 1 map to the module priority of 0 lowest 802 1p levels 2 and 3 to module priority 1 and so on Packets without any 802 1p tagging are normally assigned module priority 0 unless the port priority factors have been modified through user configuration The priority queues are managed through a fair weighted queuing algorithm that prevents any priority queue from getting sta
34. nsceiver based port EtherChannel is a registered trademark of Cisco Systems Inc 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 5 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide HP ProCurve Switch 224M Fixed configuration desktop switch with 24 10Mbps Ethernet ports and 2 100Base T ports one fixed TX and one transceiver based port HP AdvanceStack Switch 800T Eight fixed autosensing half full duplex 10 100Mbps Ethernet ports all transceiver based for top of stack applications HP AdvanceStack Switch 2000 A flexible six slot high speed backplane switch for connectivity into legacy LAN environments Modules available include e Two port 100Base T module transceiver based e Two port 100VG module transceiver based e Four port 10Base T module e Four port 10Base FL module e One port DAS FDDI module and e 1 port OC 3 ATM module co developed with FORE Systems 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 6 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 1 4 HP Switch Positioning HP identifies three different classifications for switches node desktop top of stack and backbone switches The routing switches are targeted at the medium to large backbone Requirements in this area are high bandwidth Layer 3 routing services VLAN services quality of service QoS controls flexible filtering and fault tolerance The HP ProCurve Routing Switc
35. ocessor based in the 9304M and 9308M Performance is up to 300 000 packets per second If multiple ports are being switched together and then routed for AppleTalk through a virtual interface to these switched ports the 300 000 pps rate is for traffic through the virtual interfaces into the router Traffic across the 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 11 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide switched ports is at wire speed since it is looked at as Layer 2 traffic that just happens to be AppleTalk at Layer 3 e Routing Services e Routing Table Maintenance Protocol RTMP e AppleTalk Echo Protocol AEP e Name Binding Protocol NBP e Datagram Delivery Protocol DDP e AppleTalk Address Resolution Protocol AARP e Zone Information Protocol ZIP e AppleTalk based filters see the Filter section below 2 4 QoS 2 4 1 IEEE 802 3x Flow Control Both HP ProCurve routing switches adhere to the IEEE 802 3x Flow Control specification This provides industry standard support for managing heavy port traffic and helps the routing switch avoid memory buffer overflows Flow control is enabled on a port by port basis By default all ports have flow control enabled on the HP ProCurve routing switches 2 4 2 IEEE 802 1p Priority Support IEEE 802 1p packet tagging supports both designation of VLAN membership see the VLAN section below and packet priority up to 8 levels The architecture of the
36. oesn t need to send out routing protocol packets to the other routers in the network like DVMRP does hence the protocol independent name The HP ProCurve routing switches support the dense form of PIM the version useful in LAN applications where there may be a high concentration of receiving nodes PIM generates multicast path trees to transmit a multicast stream only on those links leaving the routing switch that have a receiver for that multicast stream somewhere downstream 2 4 3 3 IGMP Internet Group Multicast Protocol IGMP is another multicast control protocol that builds delivery trees but does not keep or use any routing information in this process making it useful for Layer 2 environments IGMP handling the Layer 2 environment is used in conjunction with either DVMRP or PIM which handle the Layer 3 environment Both routing switches support Version 2 of IGMP and can act as an IGMP querier to determine who belongs to the multicast groups as do all of HP s managed switches The routing switch can then direct a specific multicast stream to only those segments that have nodes that have joined the multicast group associated with that stream The HP ProCurve routing switches support 256 IGMP groups at default 1024 with a user configurator change 2 4 3 4 IP Tunneling Not all routers support DVMRP or PIM If there are a series of non supporting routers in between the HP ProCurve routing switches IP tunneling can be used for multicast t
37. of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide For 100 Mbps environments the crosspoint matrix backplane can handle the traffic at full wire speed In this situation the traffic is limited by the total throughput of the 100 Mbps ports 3 2 Congestion Control Congestion occurs any time more packets are destined for a particular segment than that segment can handle All switches handle momentary congestion passively through buffering excess packets in memory The HP ProCurve Routing Switch 9304M and HP ProCurve Routing Switch 9308M handle the congestion issue largely through running at full media speed The only congestion the routing switches need handle are packets destined for output ports that are congested due to external network segment congestion For this momentary situation shared memory on the modules is used Each module has between 2 and 8 MB of shared memory depending on the port type of the module Another standardized method to control congestion in a multiple network box environment is with the 802 3x Flow Control standard The HP ProCurve routing switches support the 802 3x standard Orderly control of segment traffic occurs because a port on the routing switch can signal its congestion to the segment holding off segment traffic For 802 3u to work correctly the node s connected directly to routing switch ports with flow control enabled also have to support the flow control protocol Flow control in the routing
38. ovide the equivalent of a 400 Mbps 800 Mbps full duplex link between two switches or 4 Gigabit links can be trunked for the equivalent of a 4 Gigabit 8 Gigabit full duplex link Fiber optic links can be trunked to interconnect switches across large campuses Port trunking also provides redundancy on links between the two switches or switch and server If one of the links fails the traffic is moved to another link in the trunk in under one second The 9304M 9308M have two forms of trunking switch and server Switch trunking balances traffic across the links based on destination address server trunking uses the source addresses for load balancing The MAC address is used if the trunked ports on the routing switch are switched IP or IPX addresses are used for routed ports Use the switch form of trunking to interconnect switches and the server version of trunking to interconnect the routing switch with a server The HP ProCurve Routing Switch 9304M and HP ProCurve Routing Switch 9308M have been certified for use with HP UX server trunked ports Up to 4 links can be used in a trunk All links in a particular trunk must be on the same module contiguous start with a port on a MOD4 boundary 1 5 9 13 17 or 21 and have the same characteristics i e duplex QoS etc Based on these requirements the 9304M can have a maximum of 22 trunk groups the 9308M can have 46 trunk groups Trunks on the routing switches are compatible with the HP Trunks o
39. r the HP ProCurve Routing Switch 9304M and HP ProCurve Routing Switch 9308M e Web based management Configuration of individual routing switches can be done anytime anywhere through the web server available in each routing switch accessible via a standard web browser e HP TopTools for Hubs amp Switches Management of a network of HP hubs switches and routing switches can be done through the included HP TopTools for Hubs amp Switches application part of the HP TopTools suite of management products HP TopTools for Hubs amp Switches provides anetwork map and device configuration in an web based format for the routing switches HP TopTools for Hubs amp Switches can manage up to 1500 nodes as shipped The extra cost HP TopTools Value Pak can be added that increases the number of monitored nodes to 5000 e HP OpenView platforms If management of a generic IP network is needed i e management of HP and other vendors devices NT platform bridge software to HP OpenView NT is available so that TopTools can run under HP OpenView NT For more details see the TopTools web site at http www hp com toptools UX platform Management of the HP ProCurve Routing Switch 9304M and 9308M under HP OpenView UX is available via the separately purchased J3250M HP Hub amp Switch Management For HP OpenView UX product TopTools will also run under Tivoli Enterprise and Tivoli NetView as well as Unicenter TNG using the proper bridges to these
40. raffic This will prevent the multicast traffic from being treated as broadcast traffic on the non supporting routers It will also prevent the any potential multicast clients connected to these intervening routers from seeing the multicast streams This will allow the DVMRP routing functions to work correctly since logically the two routing switches will appear to be neighbors even though physically they may be separated by a number of intervening routers 2 4 4 Layer 4 Features 2 4 4 1 Priority Queues As mentioned in section 2 2 5 each port on the 9300 routing switches has four priority queues While these priority queues are automatically used for packets having an 802 1q priority field the 9300 routing switches can also be configured by the user to specify the use of a particular priority queue based on the packet s IP address or IP port number This capability provides QoS for a packet based on its Layer 4 information Applications using particular port numbers can be given priority treatment through the switch without the end node clients having to be aware of QoS particularly valuable since client operating systems and the applications themselves are generally not QoS aware at the moment Layer 4 control of priority is a very powerful feature for applications that use isochronous time sensitive data streams such as Voice over IP or conferencing This feature can also be used to give high priority to multicast applications Other
41. rved due to high traffic levels in other queues Through user configuration priority of packets can be changed based on the packet s MAC address VLAN affiliation port the packet came in on IP address or IP port number 2 2 6 System Management Interface The System Management Interface present on the management card stores and maintains the port and system level master configuration tables routing tables Layer 2 Layer 3 and Layer 4 address tables and all FID registers Packet functions requiring processor attention such as AppleTalk routing or broadcast packet handling are also handled through this interface Communication from the individual module packet processors to the System Management Interface is done through the management bus a control path distinct from the packet data path Any modification of the FID for those packets requiring additional central processor attention are also handled through the management bus The central processor runs at 240 MHz The System Management Interface has 32 MB of DRAM memory available This memory is used for switch tables such as routing tables ARP cache and MIB tables At factory default many of the table sizes are less than their maximum in order to conserve memory Tables can be resized through user configuration if necessary Default and maximum values are given in this guide for some tables 2 2 7 Backplane Design The modules are interconnected through a backplane crosspoint
42. s RIP vl v1 compatible v2 and v2 OSPF RFC 1583 and RFC 2178 compliant DNS Resolver converts names to DNS server addresses UDP Helper supports packet relay of UDP packets for certain services e PX RIP SAP routing supported e AppleTalk Routing Table Maintenance Protocol RTMP routing e Multicast support IGMP PIM dense and DVMRP e Link Aggregation Port Trunks Switch to switch and switch to server aggregated links allow scalable bandwidth communication Can be used in many cases to trunk to non HP devices Compatible with Cisco Fast EtherChannel PAgP turned off e Up to 4096 802 1Q compliant port based Layer 2 and Layer 3 VLANs for segmentation of local LANs e Extensive filtering capabilities based on Layer 2 addresses and Layer 3 routes or addresses For IP Layer 4 port number filtering is supported AppleTalk zone filtering is available Filtering except AppleTalk is performed at wire speed e Virtual Router Redundancy Protocol VRRP Provides hot standby router services A second 9300 can be in active stand by on the network in case of failure of the primary router VRRP is a proposed standard of the IETF RFC 2338 e One year warranty support services are available for additional years e Free lifetime software updates best in the industry e Free end user telephone support available worldwide during the warranty period e Extensive net management capabilities including Web based management for
43. s untagged ports Packets leaving these ports will not be 802 1Q tagged 2 5 2 IEEE 802 1D Spanning Tree Protocol The HP ProCurve routing switches support multiple instance spanning tree protocol Each VLAN can have an instance of spanning tree running This is useful in multiple VLAN environments where loops exist for redundancy purposes at the Layer 2 level Note that other HP switches support a single instance of spanning tree per box per the 802 1D spec If an HP Layer 2 switch is connected to a HP ProCurve routing switch and both are running spanning tree the 9300 port connected to the HP switch needs to be an untagged port for the spanning tree protocols to be recognized so that within the routing switch VLAN a port will be behave correctly according to Spanning Tree 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 14 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 6 Port Trunking Link Aggregation Link Aggregation is the industry term for the ability to combine multiple coterminous links links that begin at the same point and end at the same point as one logical link Link aggregation allows two HP ProCurve routing switches to be interconnected by 2 to 4 of the same type of links with all links acting as one higher speed link Since the number of links in a trunk is configurable the bandwidth is scaleable to the needs of a particular network For example 4 100Mbps links can be trunked to pr
44. st in the Industry Both the HP ProCurve Routing Switch 9304M and HP ProCurve Routing Switch 9308M come with lifetime software updates For as long as software updates are available for these routing switches they can be downloaded from the HP web site for free This includes not only bug fixes but new software capabilities as well This is an industry leading product feature 2 9 2 Warranty One Year Warranties and the ease of obtaining warranty service for the end user is a product benefit that is easily overlooked in a technical evaluation but ranks high as a concern of end users as they get ready to actually make a purchase decision The HP ProCurve Routing Switch 9304M and HP ProCurve Routing Switch 9308M have a one year warranty If any part of the switch fails including the power supply or fans it will be replaced In most parts of the world the replacement unit is sent for next business day delivery in advance of the failing unit being returned to HP Advance replacement gets the unit to the end user as fast as possible and minimizes down time by allowing the impaired unit to continue to be used if possible until the replacement unit arrives This also allows for easy scheduling for when the actual unit swap occurs on the network The 9304m 9308M one year warranty for a routing switch is industry leading with most other vendors offering 90 days Hewlett Packard has support programs available to provide fee based warranty like serv
45. switches would only have to be used if the network segments external to the routing switches were congested In the past some switches have implemented a non standard form of congestion control called backpressure The 802 3x Flow Control standard produces the same result as backpressure but does it in a standardized way HP switches do not implement backpressure 3 2 1 Head of line blocking A particular type of congestion that can be seen in some network devices is head of line blocking HOLD If a device exhibits HOLB congestion on one outgoing port can affect the throughput of another outgoing port that is not congested Whether a device exhibits HOLB or not is dependent on the inbound and outbound port buffer memory handling design The shared memory architecture with fair weighted queues on the HP ProCurve routing switches does not allow HOLB to occur 3 2 2 Bi directional Congestion Testing X Stream Another congestion test currently being used is the bi directional multi stream spray test In this test bursts of packet streams are sent into all tested ports at the same time Collisions and congestion result simultaneously on all ports Throughput and packet loss rate PLR are recorded for each port While this is an ardent stress test the HP ProCurve routing switches handle it with little problem because of the wire speed handling capability of the 9300 routing switches Since X Stream sends packets to all other ports except the por
46. t the packet came in on not all packets travel the backplane 3 3 Latency Latency is the amount of time the switch takes to process a packet In store and forward devices such as with the HP ProCurve Routing Switch 9308M and 9304M latency is reported by vendors on a LIFO basis last bit in first bit out i e the time elapsed between the end of the last bit of the packet going into the switch to the beginning of the first bit of that packet emerging from the switch Cut through switch latency is measured on a FIFO basis first in first out time measured from the beginning of the first bit of the packet going in to the switch to the beginning of the first bit of the outbound packet coming out of the switch Latency figures should be used with care when comparing store and forward devices versus cut through devices To add to the confusion many testing houses report store and forward latency as FIFO because the test equipment reports it that way Following the actual definition of latency RFC1242 which is the time taken by the device to decide where to send a particular packet store and forward routing switch 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 22 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide latencies should be reported as LIFO At any rate latency figures should be labeled as to whether they are LIFO or FIFO Occasionally store and forward routing switch latency will be reported on a FIF
47. t up to 220M or 50 125 multi mode fiber cable at up to 500m e HP ProCurve 9300 Gigabit SX LX Module 4 ports SX 4 ports LX SC connectors SX connections work with 62 5 125 multi mode fiber cable at up to 220M or 50 125 multi mode fiber cable at up to 500m connections LX connections work with single mode fiber cable up to 5km or with either 62 5 125 or 50 125 multi mode fiber cable up to 550m a mode conditioning cable may be required for multi mode use on some older fiber optic cables per IEEE 802 3z e HP ProCurve 9300 Gigabit SX LX Management Module 4 ports SX 4 ports LX SC connectors Same comments as for the card above A fully loaded HP ProCurve Routing Switch 9304M can have 88 10 100Mbps ports or 32 Gigabit ports in a box only 22 8cm 9 in height and 13 8kg 30 8lbs A fully loaded HP ProCurve Routing Switch 9308M can have 188 10 100Mbps ports or 64 Gigabit ports in a box only 52 7cm 20 75 in height and 26kg 57 3lbs 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 16 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 9 Reliability Overall reliability of a product is determined not only by how much time between product failures but also how fast a failed unit can be repaired or replaced HP offers a one year warranty free basic level phone support during this time and lifetime free software updates Some details are provided in this section 2 9 1 Lifetime Software Updates Be
48. ted 6 1 4 Latency Test Unicast Traffic Packets Across Backplane 6 1 4 1 Gigabit SX ports Port pairs active 64 Latency test length 10 seconds Port Pair Latency in microsec Us Packet size bytes 64 128 256 512 1024 1280 1518 Average of all ports 12 06 11 59 16 06 25 42 29 52 33 91 FIFO 11 04 9 54 11 96 17 23 19 28 21 76 LIFO Calculated 6 1 4 2 100Mbps Port pairs active 188 Latency test length 10 seconds Port Pair Latency in microsec ys Packet size bytes 64 128 256 512 1024 1280 1518 Port 1 to 2 FIFO LIFO Calculated Technical information subject to change without notice O Copyright 1999 Hewlett Packard Company See the Latency discussion in section 3 of this guide for the LIFO calculation gt Data not available yet 91999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 27 of 27
49. terfaces are allowed in the 9304M 180 in the 9308M The use of router virtual interfaces provides a high degree of flexibility with the routing switch and is called Integrated Switch Routing ISR 2 3 1 IP Since there is no performance degradation IP routing is by default enabled on the HP ProCurve routing switches Some of the IP services available are e Routing Services e RIP version 1 version 1 compatible version 2 and version 2 e Split Horizon and Poison Reverse supported e Redistribution importing of OSPF or static routes into the RIP route table e OSPF RFC 1583 and 2178 compliant e Load sharing of equal cost paths e Redistribution importing of RIP or static routes into the OSPF route tables e OSPF traps RFC 1850 e Static IP routes 64 maximum per chassis e IRDP ICMP Router Discovery Protocol e Proxy ARP and RARP e Bootp Relay Service e UDP broadcast forwarding UDP Helper e Encapsulation type Ethernet II default or SNAP e DNS Resolver allows users to use host name rather than IP address for services such as Telnet ping or trace route e Extensive IP based filtering available see the Filtering section 2 3 2 IPX e Routing services RIP SAP e Four encapsulation types Ethernet SNAP Ethernet 802 2 Ethernet 802 3 and Ethernet II e NetBIOS broadcast routing support e PX filters see the Filtering section 2 3 3 AppleTalk The HP ProCurve routing switches support AppleTalk Phase II AppleTalk is pr
50. ters and server farms 1 4 2 Positioning for the HP ProCurve Routing Switch 9308M The HP ProCurve Routing Switch 9308M is a feature rich modular chassis based Layer 3 routing switch that delivers 96 million packets per second performance on up to 64 Gigabit ports or 188 10 100 Mbps ports Layer 4 controls are also available allowing tuning of packet streams based on Layer 4 information without needing the cooperation of the end nodes Port flexibility is provided through the modular design with modules available for 10 100 UTP autosensing connections Gigabit SX and LX connections and 100Base FX connections Designed for large networks the HP ProCurve Routing Switch 9308M provides non blocking high performance Layer 3 routing at the core of the network 1999 Hewlett Packard Company Revision 4 0 4 1 1999 Page 7 of 27 HP ProCurve Routing Switch 9308M 9304M Reviewer s Guide 2 Evaluation Features and Benefits 2 1 Feature Set Summary The HP ProCurve Routing Switch 9304M and HP ProCurve Routing Switch 9308M are store and forward Layer 3 routing switches that feature e Anon blocking Layer 3 architecture consisting of shared memory on each card all interconnected via the backplane cross point matrix switch fabric 9308M 96 Million pps 9304M 48 Million pps e Hardware wire speed routing for IP and IPX Processor based 300 000 pps routing for AppleTalk e IP Functionality supported Routing service
51. twork testing houses and the press to determine performance numbers for networking equipment In these tests 64 ports were used for Gigabit testing 188 ports for 100 Mb testing All ports were full duplex Numbers presented here are condensed from Ixia reports in order to save space Testing done on the HP ProCurve Routing Switch 9308M Percentage of throughput would be the same for the 9304M but at one half the number of packets since the 9304M has on half the number of ports of the 9308M See Section 3 for an analysis of these numbers 6 1 HP ProCurve Routing Switch 9308M 6 1 1 IP Routing Throughput Test Packets Within Modules 6 1 1 1 Gigabit SX ports Port pairs active full duplex 64 64 Gbps data out of the tester Test length 10 seconds Packet size bytes 64 128 256 512 1024 1280 1518 Total Packets sec 95 238 080 54 054 080 28 985 536 15 037 568 7 662 848 6 153 856 5 201536 Percentage 100 0 100 0 100 0 100 0 100 0 100 0 100 0 6 1 1 2 100BT Port pairs active full duplex 188 18 8 Gbps data out of the tester Test length 10 seconds Packet size bytes 64 128 256 512 1024 1280 1518 Total Packets sec 27 976 280 15 878 480 8 514 520 4 417 436 2 250924 1 807 808 1 528 064 Percentage 100 0 100 0 100 0 100 0 100 0 100 0 100 0 6 1 2 IP Routing Throughput Test All Packets Across the
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