Cisco Systems SIP-401 User's Manual
Contents
1. configure the serial parameters ere length Example RP 0 0 CPU0 ios config if serial crc 32 Optional Specifies the length of the cyclic redundancy check CRC on the interface Note The default is CRC length is 16 invert Example RP 0 0 CPU0 ios config if serial inverts Optional Inverts the data stream mi Cisco IOS XR Interface and Hardware Component Configuration Guide Configuring Serial Interfaces on Cisco IOS XR Software Command or Action How to Configure Serial Interfaces W Purpose Step9 scramble Example RP 0 0 CPU0 ios config if serial scramble Optional Enables payload scrambling on the interface Note Payload scrambling is disabled on the interface Step 10 transmit delay hdlc flags Example RP 0 0 CPU0 ios config if serial transmit delay 10 Optional Specifies a transmit delay on the interface Values can be from 0 to 128 Note Transmit delay is disabled by default the transmit delay is set to 0 Step 11 exit Example RP 0 0 CPU0 router config if serial exit RP 0 0 CPU0 router config if Exits serial configuration mode Step12 no shutdown Example RP 0 0 CPU0 router config if no shutdown Optional Enables the serial interface Use this command if the interface was shut down Note Serial interfaces are enabled by default However if the card or router is reset and the serial interface is not configured then i2. 0 0 0 0 RP 0 0 CPU0 Router config if ipv4 address 192 0 2 2 255 255 255 252 RP 0 0 CPU0 Router config if serial RP 0 0 CPU0 Router config if serial cre 16 RP 0 0 CPU0 Router config if serial invert RP 0 0 CPU0 Router config if serial scramble RP 0 0 CPU0 Router config if serial transmit delay 3 RP 0 0 CPU0 Router config if serial commit Following is sample output from the show interfaces serial command RP 0 0 CPU0 Router show interfaces serial 0 0 3 0 5 23 Serial0 0 3 0 5 23 is down Hardware is Serial network interface s Internet address is Unknown MTU 1504 bytes BW 64 Kbit reliability 143 255 txload 1 255 rxload 1 255 Encapsulation HDLC cre 16 loopback not set keepalive set Last clearing of show interface counters 18 11 15 5 minute input rate 0 bits sec 0 packets sec 5 minute output rate 0 bits sec 0 packets sec 2764 packets input 2816 bytes 3046 total input drops 0 drops for unrecognized upper level protocol Received 0 broadcast packets 0 multicast packets 0 runts 0 giants 0 throttles 0 parity 3046 input errors 1 CRC 0 frame 0 overrun 2764 ignored 2764 packets output 60804 bytes 0 total output drops Output 0 broadcast packets 0 multicast packets 0 output errors 0 underruns 0 applique 0 resets 0 output buffer failures 0 output buffers swapped out 0 carrier transitions line protocol is down Additional References 10 sec The following sections provide references relate
3. Contents Configuring Serial Interfaces on Cisco IOS XR Softw are This module describes the serial interfaces on routers supporting Cisco IOS XR software Before you configure a serial interface you must configure the clear channel T3 E3 controller or channelized T1 Elcontroller DSO channel that is associated with that interface Feature History for Configuring Serial Controller Interfaces Release Modification Release 3 3 0 This feature was introduced on the Cisco XR 12000 Series Router Support was added on the Cisco XR 12000 Series Router for the following hardware Cisco XR 12000 SIP 401 Cisco XR 12000 SIP 501 Cisco XR 12000 SIP 601 Support was added on the Cisco XR 12000 Series Router for the following SPAs 2 Port and 4 Port Channelized T3 Serial SPA 2 Port and 4 Port T3 E3 Serial SPA Prerequisites for Configuring Serial Interfaces page HC 116 Information About Serial Interfaces page HC 116 How to Configure Serial Interfaces page HC 121 Additional References page HC 124 Cisco IOS XR Interface and Hardware Component Configuration Guide gy Configuring Serial Interfaces on Cisco IOS XR Software HI Prerequisites for Configuring Serial Interfaces Prerequisites for Configuring Serial Interfaces Before configuring serial interfaces be sure that the following tasks and conditions are met You must be in a user group associated with a task group that includes the proper task I
4. Ds for serial Interface commands Task IDs for commands are listed in Cisco IOS XR Interface and Hardware Component Command Reference Your hardware must support T3 E3 controllers and serial interfaces The following hardware supports T3 E3 controllers and serial interfaces in Cisco IOS XR Software Release 3 3 2 Port and 4 Port Clear Channel T3 E3 SPAs 2 Port and 4 Port Channelized T3 SPAs S Note The 2 Port and 4 Port Channelized T3 SPAs support T1 E1 controllers and DSO channels You have already configured the clear channel T3 E3 controller or channelized T3 to T1 El controller that is associated with the serial interface you want to configure as described in the Configuring Clear Channel T3 E3 Controllers and Channelized T3 Controllers on Cisco IOS XR Software module earlier in this document Information About Serial Interfaces Serial interfaces are supported on the following Cisco XR 12000 Series Router shared port adapter SPA cards 2 Port and 4 Port Clear Channel T3 E3 SPAs 2 Port and 4 Port Channelized T3 SPAs D Note The 2 Port and 4 Port Channelized T3 SPAs can run in clear channel mode or they can be channelized into 28 T1 or 21 E1 controllers T3 E3 serial interfaces are automatically created on clear channel T3 E3 controllers On channelized T3 to T1 E1 controllers serial interfaces are automatically created when users configure individual DSO channel groups the T1 E1 controllers To conf
5. XR software use the Cisco MIB Locator found at the following URL http cisco com public sw center netmgmt cmtk mibs shtml RFCs RFCs Title No new or modified RFCs are supported by this feature and support for existing RFCs has not been modified by this feature Technical Assistance Description Link The Cisco Technical Support website contains thousands of pages of searchable technical content including links to products technologies solutions technical tips and tools Registered Cisco com users can log in from this page to access even more content http www cisco com techsupport Cisco 10S XR Interface and Hardware Component Configuration Guide gy Configuring Serial Interfaces on Cisco IOS XR Software HE Additional References Cisco IOS XR Interface and Hardware Component Configuration Guide HC 126
6. d to T3 E3 and T1 E1 controllers and serial interfaces Related Documents Related Topic Document Title Cisco IOS XR master command reference Cisco IOS XR Master Commands List Release 3 2 Cisco IOS XR interface configuration commands Cisco IOS XR Interface and Hardware Component Command Reference Initial system bootup and configuration information for a router using Cisco IOS XR software Cisco IOS XR Getting Started Guide onfiguration Guide my Cisco 10S XR Interface and Hardware Component C Configuring Serial Interfaces on Cisco IOS XR Software Related Topic Additional References Document Title Cisco IOS XR AAA services configuration information Cisco IOS XR System Security Configuration Guide and Cisco IOS XR System Security Command Reference Information about configuring interfaces and other components on the Cisco CRS 1 from a remote Craft Works Interface CWI client management application Cisco CRS I Series Carrier Routing System Craft Works Interface Configuration Guide Standards Standards Title No new or modified standards are supported by this feature and support for existing standards has not been modified by this feature MIBs MIBs MIBs Link No new or modified MIBs are supported by this feature and support for existing MIBs has not been modified by this feature To locate and download MIBs for selected platforms using Cisco IOS
7. disabled Control HDLC flag sequences to be inserted between the packets Serial Interface Naming Notation The naming notation for serial interfaces on a clear channel SPA is rack slot module port as shown in the following example interface serial 0 0 1 2 The naming notation for T1 E1 and DSO interfaces on a channelized SPA is rack slot module port t1 num channel group number as shown in the following example interface serial 0 0 1 2 4 3 Note A slash between values is required as part of the notation The naming notation syntax for serial interfaces is as follows rack Chassis number of the rack slot Physical slot number of the modular services card or line card module Module number Shared port adapters SPAs are referenced by their subslot number port Physical port number of the T3 controller Cisco 10S XR Interface and Hardware Component Configuration Guide gy Configuring Serial Interfaces on Cisco IOS XR Software HZ information About Serial Interfaces tl num T1 or El channel number T1 channels range from 0 to 23 E1 channels range from 0 to 30 channel group number Time slot number T1 time slots range from 1 to 24 El time slots range from 1 to 31 The channel group number is preceded by a colon and not a slash Use the question mark online help function following the serial keyword to view a list of all valid interface choices Cisco IOS XR PPP Encapsu
8. ear Controllers and Channelized T3 Channel SPAs Controllers on Cisco IOS XR Software 3 Configure the serial interface thatis Configuring Serial Interfaces on Configuring the Serial Interfaces associated with the T3 controller Cisco IOS XR Software you configured in Step 2 Table 11 provides a high level overview of the tasks required to configure an E3 serial interface on a 2 Port and 4 Port Clear Channel T3 E3 SPA Table 11 Overview Configuring an E3 Serial Interface on a Clear Channel SPA Step Task Module Section 1 Use the hw module subslot Configuring Clear Channel T3 E3 Setting the Card Type for the Clear command to set serial mode for the Controllers and Channelized T3 Channel SPAs SPA to be E3 Controllers on Cisco IOS XR Software 2 Configure the E3 controller Configuring Clear Channel T3 E3 Setting the Card Type for the Clear Controllers and Channelized T3 Channel SPAs Controllers on Cisco IOS XR Software 3 Configure the serial interface thatis Configuring Serial Interfaces on Configuring the Serial Interfaces associated with the E3 controller you configured in Step 2 Cisco IOS XR Software Cisco 10S XR Interface and Hardware Component Configuration Guide gy Configuring Serial Interfaces on Cisco IOS XR Software HZ information About Serial Interfaces High Level Over View Serial Interface Configuration on Channelized SPAs Table 12 provides a high level overview of the tasks required
9. hannel Configuring Clear Channel T3 E3 Configuring a Channelized T3 to E1 groups on the E1 controllers you Controllers and Channelized T3 Controller created in Step 1 Controllers on Cisco IOS XR Software 3 Configure the Serial interfaces that Configuring Serial Interfaces on _ Configuring the Serial Interfaces are associated channel groups you created in Step 2 Cisco IOS XR Software mi Cisco IOS XR Interface and Hardware Component Configuration Guide Configuring Serial Interfaces on Cisco IOS XR Software Information About Serial Interfaces il Default Settings for Serial Interface Configurations When an interface is enabled on a T3 E3 SPA and no additional configuration commands are applied the default interface settings shown in Table 14 are present These default settings can be changed by configuration Default settings do not appear in the output of the show running config command Table 14 Serial Interface Default Settings Parameter Configuration File Entry Default Settings Keepalive keepalive disable keepalive 10 seconds no keepalive Encapsulation encapsulation hdlc ppp hdlc Maximum transmission unit MTU mtu bytes 4474 bytes Cyclic redundancy check CRC cre 16 32 32 Data stream inversion on a serial invert Data stream is not inverted interface Payload scrambling encryption scramble Scrambling is disabled Number of High Level Data Link transmit delay Default is 0
10. igure serial interfaces you must understand the following concepts High Level Over View Serial Interface Configuration on Clear Channel SPAs page HC 117 High Level Over View Serial Interface Configuration on Channelized SPAs page HC 118 Default Settings for Serial Interface Configurations page HC 119 Serial Interface Naming Notation page HC 119 Cisco IOS XR PPP Encapsulation page HC 120 Cisco IOS XR HDLC Encapsulation page HC 120 Keepalive Timer page HC 120 mi Cisco 10S XR Interface and Hardware Component Configuration Guide Configuring Serial Interfaces on Cisco IOS XR Software Information About Serial Interfaces High Level Over View Serial Interface Configuration on Clear Channel SPAs Table 10 provides a high level overview of the tasks required to configure a T3 serial interface on a 2 Port and 4 Port Clear Channel T3 E3 SPA Table 10 Overview Configuring a T3 Serial Interface on a Clear Channel SPA Step Task Module Section 1 Use the hw module subslot Configuring Clear Channel T3 E3 Setting the Card Type for the Clear command to set serial mode for the SPA to be T3 if necessary Note By default the 2 Port and 4 Port Clear Channel T3 E3 SPA is set to run in T3 mode Controllers and Channelized T3 Controllers on Cisco IOS XR Software Channel SPAs 2 Configure the T3 controller Configuring Clear Channel T3 E3 Setting the Card Type for the Cl
11. lation PPP is a standard protocol used to send data over synchronous serial links PPP also provides a link control protocol LCP for negotiating properties of the link LCP uses echo requests and responses to monitor the continuing availability of the link PPP provides Network Control Protocols NCPs for negotiating properties of data protocols that will run on the link IP Control Protocol IPCP to negotiate IP properties e Multiprotocol Label Switching control processor MPLSCP to negotiate MPLS properties Cisco Discovery Protocol control processor CDPCP to negotiate CDP properties IPv6CP to negotiate IP Version 6 IPv6 properties Open Systems Interconnection control processor OSICP to negotiate OSI properties Note The default encapsulation type for the serial line card configurations is Cisco HDLC To change the encapsulation type to be PPP you must use the encapsulation ppp command in interface configuration mode for the serial interface Cisco IOS XR HDLC Encapsulation Cisco High Level Data Link Controller HDLC is Cisco s proprietary protocol for sending data over synchronous serial links using HDLC Cisco HDLC also provides a simple control protocol called Serial Line Address Resolution Protocol SLARP to maintain serial link keepalives HDLC is the default encapsulation for serial interfaces under Cisco IOS XR software Keepalive Timer The HDLC usage of the keepalive timer also applies to PPP e
12. ncapsulation to control how often ECHOREQ echo request packets are sent out Use the keepalive command in interface configuration mode to set how frequently LCP should send out ECHOREQ packets to its peer To restore the system to the default keepalive interval of 10 seconds use the keepalive command with no argument To disable keepalives use the no keepalive or keepalive disable command For both PPP and Cisco HDLC a keepalive of 0 disables keepalives and is reported in the show running config command output as keepalive disable When LCP is running on the peer and receives an ECHOREQ packet it should respond with an echo reply ECHOREP packet regardless of whether keepalives are enabled on the peer Cisco IOS XR Interface and Hardware Component Configuration Guide HC 120 Configuring Serial Interfaces on Cisco IOS XR Software How to Configure Serial Interfaces i Keepalives are independent between the two peers One peer end can have keepalives enabled the other end can have them disabled Even if keepalives are disabled locally LCP still responds with ECHOREP packets to the ECHOREQ packets it receives Similarly LCP also works if the period of keepalives at each end is different When the interface has PPP encapsulation if LCP sends three ECHOREQ packets without an ECHOREP being received then it declares the link down and initiates full LCP negotiation again If the interface has HDLC encapsulation the number of
13. resends is only three before the link is taken down Only when LCP negotiation is complete for example when LCP is Open are ECHOREQ packets sent out How to Configure Serial Interfaces After you have configured a channelized or clear channel T3 E3 controller as described in the Configuring Clear Channel T3 E3 Controllers and Channelized T3 Controllers on Cisco IOS XR Software module earlier in this document you can configure the Serial interfaces associated with that controller The following task describes how to configure a serial interface Configuring the Serial Interfaces page HC 121 Configuring the Serial Interfaces S Before you can use a serial interface you must configure the IP address and bring the interface to the up state as described in the steps that follow Note SUMMARY STEPS All global commands are supported on serial interfaces Only commands specific to serial interfaces are described in this section For more information about global interface commands refer to the Global Interface Commands on Cisco IOS XR Software module in Cisco IOS XR Interface and Hardware Component Command Reference 1 configure 2 interface serial instance 3 ipv4 address ip address 4 encapsulation hdlc ppp 5 keepalive seconds disable 6 serial 7 ere length 8 invert 9 scramble 10 transmit delay hdlc flags 11 exit 12 no shutdown Cisco 10S XR Interface and Hardware Component Configuration G
14. t comes up in the shutdown state Step 13 end or commit Example RP 0 0 CPU0 router config end or RP 0 0 CPU0 router config commit Saves configuration changes When you issue the end command the system prompts you to commit changes Uncommitted changes found commit them before exiting yes no cancel cancel Entering yes saves configuration changes to the running configuration file exits the configuration session and returns the router to EXEC mode Entering no exits the configuration session and returns the router to EXEC mode without committing the configuration changes Entering cancel leaves the router in the current configuration session without exiting or committing the configuration changes Use the commit command to save the configuration changes to the running configuration file and remain within the configuration session Step14 show interfaces serial instance Example RP 0 0 CPU0 router show interfaces serial 0 0 3 0 5 20 Displays information about the interface Cisco 10S XR Interface and Hardware Component Configuration Guide Bh HC 123 Configuring Serial Interfaces on Cisco IOS XR Software WE Configuration Examples for Serial Interfaces Configuration Examples for Serial Interfaces The following example shows how to configure a basic serial interface RP 0 0 CPU0 Router config RP 0 0 CPU0 Router config interface Serial0 3
15. to configure a T1 serial interface on the 2 Port and 4 Port Channelized T3 SPA Table 12 Overview Configuring a Serial Interface on a T1 DSO Channel Step Task Module Section 1 Configure the T3 controller Configuring Clear Channel Configuring a Channelized T3 to T1 parameters and set the SPA mode to be T3 28 T1 controllers are automatically created T3 E3 Controllers and Channelized T3 Controllers on Cisco IOS XR Software Controller 2 Create and configure DSO channel Configuring Clear Channel Configuring a Channelized T3 to T1 groups on the T1 controllers you T3 E3 Controllers and Controller created in Step 1 Channelized T3 Controllers on Cisco IOS XR Software 3 Configure the Serial interfaces that Configuring Serial Interfaces on Configuring the Serial Interfaces are associated channel groups you Cisco IOS XR Software created in Step 2 Table 13 provides a high level overview of the tasks required to configure an E1 serial interface on the 2 Port and 4 Port Channelized T3 SPA Table 13 Overview Configuring a Serial Interface on an E1 DSO Channel Step Task Module Section 1 Configure the T3 controller Configuring Clear Channel T3 E3 Configuring a Channelized T3 to T1 parameters and set the SPA mode to Controllers and Channelized T3 Controller be E3 Controllers on Cisco IOS XR 21 E1 controllers are automatically Software created 2 Create and configure DSO c
16. uide gy Configuring Serial Interfaces on Cisco IOS XR Software HI How to Configure Serial Interfaces 13 end or commit 14 show interfaces serial instance DETAILED STEPS Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Command or Action Purpose configure Example RP 0 0 CPU0 router configure Enters global configuration mode interface serial instance Example RP 0 0 CPU0 router config interface serial 0 1 0 0 10 15 Specifies the serial interface name and enters interface configuration mode Naming notation for T3 E3 interfaces is rack slot module port and for T1 E1 DSO interfaces is rack slot module port tl num channel group number ipv4 address ip address Example RP 0 0 CPU0 router config if ipv4 address 10 1 2 1 255 255 255 224 Assigns an IP address and subnet mask to the interface encapsulation hdlc ppp Example RP 0 0 CPU0 router config if encapsulation hdlc Optional Configures the interface encapsulation parameters and details such as HDLC or PPP Note The default encapsulation is hdlc keepalive seconds disable Example RP 0 RO CPUO router config if keepalive 10 Optional Configures the HDLC keepalive value Note The default value for the keepalive timer is 10 seconds serial Example RP 0 0 CPU0 router config if serial RP 0 0 CPU0 ios config if serial Optional Enters serial submode to
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