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Configuring 1- and 2-Port T1/E1 GRWICs

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Configuring 1- and 2-Port T1/E1 GRWICs

Table Of Contents

Configuring 1- and 2-Port T1/E1 GRWICs

Contents

Restrictions for T1/E1 GRWICs

Information About T1/E1 GRWICs

How to Configure T1/E1 GRWICs

Configuring Card Type

Changing Card Type

Configuring the T1/E1 GRWICs

Configuration Example for GRWIC

Command Reference

controller

Feature Information for T1/E1 GRWICs

Additional References

Related Documents

Standards

MIBs

RFCs

Technical Assistance


Configuring 1- and 2-Port T1/E1 GRWICs


First Published: June 1, 2010
Last Updated: June 1, 2010

This 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.

1-port T1/E1 Grid Router WAN Interface Card part number: GRWIC-1CE1T1-PRI (data only)

2-port T1/E1 Grid Router WAN Interface Card part number: GRWIC-2CE1T1-PRI (data only)

Provides channelized T1 or E1 connections

Only supported on Cisco CGR2010

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

Restrictions for T1/E1 GRWICs

Information About T1/E1 GRWICs

How to Configure T1/E1 GRWICs

Configuration Example for GRWIC

Additional References

Command Reference

Feature Information for T1/E1 GRWICs

Restrictions for T1/E1 GRWICs

Only the Cisco Connected Grid Router 2010 supports these rugged T1/E1 GRWICs.

Voice features are not supported on the GRWICs.

Wetting current is not supported on the GRWICs.

V54 loop up/down code recognition is not supported on the GRWICs.

The 1- and 2-port GRWICs support up to 32 channels per port (up to 64 channels total on the 2-port GRWIC).

Bit error rate tester (BERT) runs on the entire controller and not on specific channel groups. Because of this, only a limited number of patterns are supported. See the "Configuring the T1/E1 GRWICs" section for more details.

Information About T1/E1 GRWICs

Cisco Connected Grid Router 2010 supports one of the following three GRWIC module options:

Option 1: Four single-wide GRWIC modules

Option 2: Two double-wide GRWIC modules

Option 3: One double-wide and two single-wide GRWIC modules

Option 4: Two single-wide and one double-wide GRWIC modules


Note GRWIC online insertion and removal is not supported.


Table 1 shows the form factor capability of each GRWIC slot.

Table 1 GRWICs Slot Compatibility on Cisco CGR2010

Options
Slot 3
Slot 2
Slot 1
Slot 0

Option 1

Single-wide GRWIC

Single-wide GRWIC

Single-wide GRWIC

Single-wide GRWIC

Option 2

Double-wide GRWIC

Double-wide GRWIC

Option 3

Double-wide GRWIC

Single-wide GRWIC

Single-wide GRWIC

Option 4

Single-wide GRWIC

Single-wide GRWIC

Double-wide GRWIC


Some examples are as follows:

Port 0 of a GRWIC in slot 0: 0/0/0

Port 1 of a 1- or 2-port GRWIC in slot 1: 0/1/1

How to Configure T1/E1 GRWICs

Configuring Card Type

Changing Card Type

Configuring the T1/E1 GRWICs

Configuring Card Type

To configure the T1/E1 GRWICs for T1 or E1 operation, complete the following steps.


Note The T1/E1 GRWICs will not be operational until a card type is properly configured.


SUMMARY STEPS

1. enable

2. configure terminal

3. card type {t1 | e1} slot subslot

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

enable

Example:

Router> enable

Enables privileged EXEC mode.

Enter your password if prompted.

Step 2 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3 

card type {t1 | e1} slot subslot

Example:

Router(config)# card type t1 0 2

Specifies T1 or E1 connectivity. slot refers to the network module slot on the CGR2010 Series router platform. subslot refers to the GRWIC slot on the platform.

Changing Card Type

To change a card type from T1 to E1, or from E1 to T1, perform the following tasks:

SUMMARY STEPS

1. enable

2. configure terminal

3. no card type {t1 | e1} slot subslot

4. card type {t1 | e1} slot subslot

5. write

6. reload

7. boot

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

enable

Example:

Router> enable

Enables privileged EXEC mode.

Enter your password if prompted.

Step 2 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3 

no card type {t1 | e1} slot subslot

Example:

Router(config)# no card type t1 0 2

Optional. Removes the previously configured card type for the GRWIC.

Step 4 

card type {t1 | e1} slot subslot

Example:

Router(config)# card type e1 0 2

Specifies T1 or E1 connectivity for the GRWIC.

Step 5 

write

Example:

Router# write

Rebuilds the router configuration.

Step 6 

reload

Example:

Router# reload

Reloads router so that changes can take affect.

After this command executes, the router will go to ROM monitor (rommon) mode.

Configuring the T1/E1 GRWICs

To configure the T1/E1 GRWICs, complete the following steps:

SUMMARY STEPS

1. enable

2. configure terminal

3. network-clock-participate [slot slot-number | wic wic-slot]

4. controller {t1 | e1} slot/subslot/port

5. framing {sf | esf}

or

framing {crc4 | no-crc4}

6. linecode {ami | b8zs}

or

linecode {ami | hdb3}

7. fdl {att | ansi | both}

8. clock source {line | internal}

9. line-termination {75-ohm | 120-ohm}

10. loopback {diagnostic | local {payload | line} | remote {iboc | esf {payload | line}}}

11. cablelength long db-loss-value

or

cablelength short length

12. channel group channel-group-number {timeslots range [speed kbps] | unframed}

or

pri-group timeslots timeslot-range [nfas_d | service]

or

tdm-group tdm-group-no timeslots timeslot-range

13. national reserve N sa4 sa5 sa6 sa7 sa8

14. crc-threshold value

15. yellow {generation | detection}

16. bert pattern pattern interval time

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

enable

Example:

Router> enable

Enables privileged EXEC mode.

Enter your password if prompted.

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}


or

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}


or

linecode {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 When using linecode AMI, the user is advised to select 56 Kbps as the rate or make sure that the channel groups created do not contain all the timeslots. See Step 12. This is to avoid exceeding the "15 zeroes" threshold specified by standards.

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.

75-ohm specifies the 75 ohm unbalanced termination.

120-ohm specifies the 120 ohm balanced termination.

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:

diagnostic loops transmit signal back to receive

local puts the interface into local loopback mode at the payload or line level

remote puts the interface into remote loopback mode through an inband bit oriented code (iboc) or, for T1 only, remote esf, which uses fdl codes to set payload or line levels.

Step 11 

cablelength long db-loss-value


or

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:

0db

-7.5db

-15db

-22.5db

Default attenuation is 0db.

cablelength short sets transmission attenuation for cable lengths of 660 feet or less. Cable lengths can be specified as follows:

110 for cable lengths from 0 to 110 feet

220 for cable lengths from 110 to 220 feet

330 for cable lengths from 220 to 330 feet

440 for cable lengths from 330 to 440 feet

550 for cable lengths from 440 to 550 feet

660 for cable lengths from 550 to 660 feet

There is no default cable length.

Step 12 

channel group channel-group-number {timeslots range [speed kbps] | unframed}


or

pri-group timeslots timeslot-range



or

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:

channel-group-number is from 0 to 23

timeslots range is from 1 to 24

Default value of speed in T1 is 64 Kbps. Configuration of speed is optional.

For E1, values are as follows:

channel-group-number is from 0 to 30

timeslots range is from 1 to 31

Default value of speed in E1 is 64 Kbps. Configuration of speed is optional.

unframed (E1 only) specifies that all 32 timeslots are to be used for data, and that none are to be used for framing signals.

or

Configures specified timeslots on T1 or E1 interfaces for PRI for transporting ISDN data.

or

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:

When the linecode is AMI, use patterns 2^11, 2^15, or 2^20-QRSS.

When the linecode is b8zs or hdb3, use patterns 2^11, 2^15, 2^20-QRSS, or 2^20-O.153.

Note If any other bert pattern is chosen, an error message will appear that lists the supported patterns for the configured linecode. A complete listing of bert patterns is in Cisco IOS Master Commands List, Release 12.4.

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 0/1/6
Serial0/1/6 is up, line protocol is up 
  Hardware is GRWIC-Serial
Internet address is 5.5.5.2/8
  MTU 1500 bytes, BW 0 Kbit/sec, DLY 100000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation SLIP, loopback not set
  Keepalive not set
  DTR is pulsed for 5 seconds on reset
  Last input 00:00:09, output 00:00:09, output hang never
  Last clearing of "show interface" counters 00:30:04
  Input queue: 1/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output 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/sec
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     119 packets input, 30084 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     1 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 0 abort
     120 packets output, 30510 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

To view the IOS software version, use the show version command.

Router#show version
Cisco 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 dyip

ROM: System Bootstrap, Version 12.4(20091028:224958) [ypatel-3gorgrm1 141], DEVELOPMENT 
SOFTWARE

Router uptime is 32 minutes
System returned to ROM by reload at 09:09:57 PST Wed Nov 11 2009
System restarted at 09:11:07 PST Wed Nov 11 2009
System image file is "flash0:cgr2010-universalk9-mz.SSA.cflow"
Last reload reason: Reload Command

Command 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

t1

T1 controller.

e1

E1 controller.

j1

J1 controller.

slot/port

Backplane slot number and port number on the interface. Refer to your hardware installation manual for the specific values and slot numbers.

slot/subslot/port

Backplane slot number, subslot number, and port number on the interface. Refer to your hardware installation guide for the specific values, and slot and subslot numbers.

number

Network processor module (NPM) number, in the range 0 through 2.

dial-shelf

Dial shelf chassis in the Cisco AS5800 access server that contains the interface card.

/t3-port

T3 port number. The only valid value is 0.

:t1-num

T1 timeslot in the T3 line. The value can be from 1 to 28.


Defaults

No T1, E1, or J1 controller is configured.

Command Modes

Global configuration

Command History

Release
Modification

10.0

This command was introduced.

10.3

The e1 keyword was added.

12.0(3)T

Support was added for dial shelves on Cisco AS5800 access servers.

12.2(7)XO

The j1 keyword was added for the Cisco 2600 and Cisco 3600 series.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.4(11)XW

The subslot argument was added for the Cisco 2800 and Cisco 3800 series.


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

Command
Description

bert abort

Resets the T1 or E1 controller.

interface serial

Specifies a serial interface created on a channelized E1 or channelized T1 controller (for ISDN PRI, CAS, or robbed-bit signaling).

show controllers content-engine

Displays information about the E1 links supported by the NPM.

show controllers j1

Displays information about the E1 link.

show controllers t1

Displays the total number of calls and call durations on a T1 controller.


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.


Note Table 2 lists only the Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS software release train also support that feature.


Table 2 Feature Information for T1/E1 GRWICs 

Feature Name
Releases
Feature Information

T1/E1 GRWICs

15.1(1)T

T1/E1 GRWICs are available as follows:

Channelized 1-port T1/E1 GRWIC

Channelized 2-port T1/E1 GRWIC

T1/E1 GRWICs are supported on Cisco CGR2010.


Additional References

The following sections provide references related to the T1/E1 GRWIC features.

Related Documents

Related Topic
Document Title

Hardware installation of network modules

See the Cisco CGR 2010 Router Hardware Installation Guide

CLI Commands Reference

Cisco IOS Master Commands List, Release 15


Standards

Standard
Title

No new or modified standards are supported by this feature, and support for existing standards have not been modified by this feature.


MIBs

MIB
MIBs Link

No new or modified MIBs are supported by this feature, and support for existing MIBs have not been modified by this feature.

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs


RFCs

RFC
Title

No new or modified RFCs are supported by this feature, and support for existing RFCs have not been modified by this feature.


Technical Assistance

Description
Link

The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies.

To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds.

Access to most tools on the Cisco Support website requires a Cisco.com user ID and password.

http://www.cisco.com/techsupport