Configuring 1- and 2-Port T1/E1 GRWICs
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Table Of Contents
Configuring 1- and 2-Port T1/E1 GRWICs
Information About T1/E1 GRWICs
Configuration Example for GRWIC
Feature Information for T1/E1 GRWICs
Configuring 1- and 2-Port T1/E1 GRWICs
First Published: June 1, 2010Last Updated: June 1, 2010This document describes the following Cisco Grid Router WAN Interface Card (GRWIC) products designed to fit into the rugged Cisco Connected Grid Router 2010 (Cisco CGR 2010). Cisco 1-port and 2-port channelized T1/E1 and PRI GRWICs combine multiple T1/E1 WAN connectivity and channelized T1/E1 in the same card. Applications include fractional or full T1/E1 WAN connectivity and dial access aggregation. The modules can be used in T1 or E1 networks, selectable during software configuration. The modules support balanced and unbalanced E1 connectivity and conform to the G.703 and G.704 standards for unframed and framed E1 modes.
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1-port T1/E1 Grid Router WAN Interface Card part number: GRWIC-1CE1T1-PRI (data only)
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Finding Feature Information in This Module
Your Cisco IOS software release may not support all of the features documented in this module. To reach links to specific feature documentation in this module and to see a list of the releases in which each feature is supported, use the "Feature Information for T1/E1 GRWICs" section.
Finding Support Information for Platforms and Cisco IOS and Catalyst OS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Contents
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Restrictions for T1/E1 GRWICs
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Information About T1/E1 GRWICs
Cisco Connected Grid Router 2010 supports one of the following three GRWIC module options:
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Note
Table 1 shows the form factor capability of each GRWIC slot.
Some examples are as follows:
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How to Configure T1/E1 GRWICs
Configuring Card Type
To configure the T1/E1 GRWICs for T1 or E1 operation, complete the following steps.
Note
SUMMARY STEPS
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DETAILED STEPS
Changing Card Type
To change a card type from T1 to E1, or from E1 to T1, perform the following tasks:
SUMMARY STEPS
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DETAILED STEPS
Configuring the T1/E1 GRWICs
To configure the T1/E1 GRWICs, complete the following steps:
SUMMARY STEPS
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framing {crc4 | no-crc4}
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linecode {ami | hdb3}
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cablelength short length
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pri-group timeslots timeslot-range [nfas_d | service]
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tdm-group tdm-group-no timeslots timeslot-range
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DETAILED STEPS
Step 1
enable
Example:Router> enable
Enables privileged EXEC mode.
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Step 2
configure terminal
Example:Router# configure terminal
Enters global configuration mode.
Step 3
network-clock-participate [slot slot-number | wic wic-slot]
Example:Router(config)# network-clock-participate wic 0
TDM group configuration only. Allows the ports on a specified GRWIC to use the network clock for timing.
Step 4
controller {t1 | e1} slot/subslot/port
Example:Router(config)# controller t1 1/0
Enters controller configuration mode.
Step 5
framing {sf | esf}
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framing {crc4 | no-crc4}
Example:Router(config-controller)# framing esf
In T1 configurations, specifies super frame (sf) or extended super frame (esf) as the frame type for data lines. Default is esf.
In E1 configurations, specifies cyclic redundancy check 4 (crc4) or no-crc4 as the frame type for data lines. Default is crc4.
Step 6
linecode {ami | b8zs}
orlinecode {ami | hdb3}
Example:Router(config-controller)# linecode b8zs
In T1 configurations, specifies alternate mark inversion (AMI) or b8zs as the linecode. Default is b8zs.
In E1 configurations, specifies AMI or high-density bipolar 3 (hdb3) as the linecode. Default is hdb3.
Note
Step 7
fdl {att | ansi | both}
Example:Router(config-controller)# fdl both
T1 only. Sets the facility data link (fdl) exchange standard for T1 interfaces using esf framing. You can select the ATT standard (ATT TR54016), the ANSI standard (ANSI T1.403), or both. Default is ansi. To disable fdl, enter the command no fdl.
Step 8
clock source {line [independent] | internal}
Example:Router(config-controller)# clock source line
line specifies that the clocking on this controller is derived from an external source, generally the telephone central office. line independent configures the port to be independent in the TDM domain, which is when network-clock-participate is configured on the card.
internal specifies that the clock is generated by internal controller circuitry.
Default is line.
Step 9
line-termination {75-ohm | 120-ohm}
Example:Router(config-controller)# line-termination 75-ohm
E1 only. Sets the line termination on an E1 controller.
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Default is 120-ohm.
Step 10
loopback {diagnostic | local {payload | line} | remote {iboc | esf {payload | line}}}
Example:Router(config-controller)# loopback remote esf line
Sets the loopback method for testing the interface. Options are:
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Step 11
cablelength long db-loss-value
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cablelength short length
Example:Router(config-controller)# cablelength short 133
T1 only. cablelength long attenuates the pulse from the transmitter using pulse equalization and line build-out. This command applies to cables longer than 660 feet. Loss values are:
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Default attenuation is 0db.
cablelength short sets transmission attenuation for cable lengths of 660 feet or less. Cable lengths can be specified as follows:
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There is no default cable length.
Step 12
channel group channel-group-number {timeslots range [speed kbps] | unframed}
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pri-group timeslots timeslot-range
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tdm-group tdm-group-no timeslots timeslot-range
Example:Router(config-controller)# channel group 1 timeslots 1-4
Configures the serial WAN on a T1 or E1 interface by specifying channels and their timeslots.
For T1, values are as follows:
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For E1, values are as follows:
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Configures specified timeslots on T1 or E1 interfaces for PRI for transporting ISDN data.
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Configures specified timeslots on T1 or E1 interfaces to create clear channel groups for time division multiplexing.
For the tdm-group configuration command to work, it is necessary to configure network-clock-participate for the interface in global configuration mode.
Step 13
national reserve N sa4 sa5 sa6 sa7 sa8
Example:Router(config-controller)# national reserve 0 1 1 1 1 0
E1 only. Sets the 6 required national bits in E1 in the G.751 frame. Default is 1 1 1 1 1 1.
Step 14
crc-threshold value
Example:Router(config-controller)# crc-threshold 500
T1 only. Defines a severely errored second by specifying the number of CRC errors that must occur in one second to reach the severely errored state. Default is 320.
Step 15
yellow {generation | detection}
Example:Router(config-controller)# no yellow detection
Enables generation and detection of yellow alarms. Default condition is that generation and detection of yellow alarms are enabled.
Use the no form of the command to disable yellow alarm detection.
Step 16
bert pattern pattern interval time
Example:Router(config-controller)# bert 2^11 interval 1440
Optional. Activates the Bit Error Rate Tester (BERT) with the chosen test pattern for a specified duration.
Configure BERT patterns on T1/E1 GRWICs as follows:
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Note
interval time is from 1 to 14,400 minutes.
Configuration Example for GRWIC
To view the configuration of the GRWIC, use the show interface serial command.
Router#show interface serial 0/1/6Serial0/1/6 is up, line protocol is upHardware is GRWIC-SerialInternet address is 5.5.5.2/8MTU 1500 bytes, BW 0 Kbit/sec, DLY 100000 usec,reliability 255/255, txload 1/255, rxload 1/255Encapsulation SLIP, loopback not setKeepalive not setDTR is pulsed for 5 seconds on resetLast input 00:00:09, output 00:00:09, output hang neverLast clearing of "show interface" counters 00:30:04Input queue: 1/75/0/0 (size/max/drops/flushes); Total output drops: 0Queueing strategy: weighted fairOutput queue: 0/1000/64/0 (size/max total/threshold/drops)Conversations 0/1/16 (active/max active/max total)Reserved Conversations 0/0 (allocated/max allocated)Available Bandwidth 0 kilobits/sec5 minute input rate 0 bits/sec, 0 packets/sec5 minute output rate 0 bits/sec, 0 packets/sec119 packets input, 30084 bytes, 0 no bufferReceived 0 broadcasts (0 IP multicasts)0 runts, 0 giants, 0 throttles1 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 0 abort120 packets output, 30510 bytes, 0 underruns0 output errors, 0 collisions, 2 interface resets0 unknown protocol drops0 output buffer failures, 0 output buffers swapped out0 carrier transitionsTo view the IOS software version, use the show version command.
Router#show versionCisco IOS Software, cgr2010 Software (cgr2010-UNIVERSALK9-M), Experimental Version 15.1(20091110:120837) [dyip-flow 110]Copyright (c) 1986-2009 by Cisco Systems, Inc.Compiled Tue 10-Nov-09 07:16 by dyipROM: System Bootstrap, Version 12.4(20091028:224958) [ypatel-3gorgrm1 141], DEVELOPMENT SOFTWARERouter uptime is 32 minutesSystem returned to ROM by reload at 09:09:57 PST Wed Nov 11 2009System restarted at 09:11:07 PST Wed Nov 11 2009System image file is "flash0:cgr2010-universalk9-mz.SSA.cflow"Last reload reason: Reload CommandCommand Reference
This section documents only commands that are modified.
controller
To configure a T1, E1, or J1 controller and enter controller configuration mode, use the controller command in global configuration mode:
controller {t1 | e1 | j1} slot/port
Syntax DescriptionC
Defaults
No T1, E1, or J1 controller is configured.
Command Modes
Global configuration
Command History
Usage Guidelines
T1 or E1 Fractional Data Lines
This command is used in configurations where the router or access server is intended to communicate with a T1 or E1 fractional data line. Additional parameters for the T1 or E1 line must be configured for the controller before the T1 or E1 circuits can be configured by means of the interface global configuration command.
To view the status of the controllers, use the show controllers command.
Related Commands
Feature Information for T1/E1 GRWICs
Table 2 lists the release history for this feature.
Not all commands may be available in your Cisco IOS software release. For release information about a specific command, see the command reference documentation.
Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
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Additional References
The following sections provide references related to the T1/E1 GRWIC features.
Related Documents
Hardware installation of network modules
See the Cisco CGR 2010 Router Hardware Installation Guide
CLI Commands Reference
Standards
No new or modified standards are supported by this feature, and support for existing standards have not been modified by this feature.
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MIBs
RFCs
No new or modified RFCs are supported by this feature, and support for existing RFCs have not been modified by this feature.
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Technical Assistance
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