Cisco ISE - Line Card ISE Bedienungsanleitung PDF herunterladen (Seite 32)

Cisco IOS SoftwareConfiguration for theCisco 12000 SeriesOne-Port Channelized OC-12/STM-4(DS1/E1) ISE Line

How to Configure Layer 1 Features

Cisco IOS Release 12.0(27)S1

To configure an E1 line, you must enter SONET controller configuration mode and specify the line card

slot and port, and then enter the command mode appropriate to the selected framing type and mode of

operation for the for the TUG-3 of an AU-4. The following example shows the first E1 line in the fourth

TUG-2 group being assigned to logical channel group 15 with channelized timeslots 1 to 5, and 20 to 23:

Router(config)# controller sonet 6/0

Router(config-controller)# framing sdh

Router(config-controller)# aug mapping au-4

Router(config-controller)# au-4 1 tug-3 2

Router(config-ctrlr-tug3)# mode c-12

Router(config-ctrlr-tug3)# tug-2 4 e1 1 channel-group 15 timeslots 1-5, 20-23

Router(config-ctrlr-tug3)#

Note After an E1 channel group is configured, it appears to the Cisco IOS software as a serial

interface; therefore, all the configuration commands for a serial interface are available, but

not all commands are applicable to the E1 channel group.

All the encapsulation formats, such as PPP, HDLC, and Frame Relay are applicable to the

configured E1 channel group. Be sure that you are in serial interface configuration mode

when you set the encapsulation format.

All the switching types that are applicable to a serial interface are also applicable to the

configured E1 channel group.

Removing a Logical Channel Group from an E1 Line under SDH Framing with AU-4 AUG Mapping

You can remove a logical channel group from an E1 line with the no tug-2 tug-2-number e1

e1-line-number channel-group channel-group-number TUG-3 configuration command, where:

• tug-2-number is 1 to 7.

• e1-line-number is 1 to 3.

• channel-group-number is 0 to 30.

To configure an E1 line, you must enter SONET controller configuration mode and specify the line card

slot and port, and then enter the command mode appropriate to the selected framing type and mode of

operation for the for the TUG-3 of an AU-4. The following example shows a SONET controller in slot

6 and port 0.

The following example removes logical channel group 10 from channelized E1 line 1 of TUG-2

number 4 in TUG-3 number 2.

Router(config)# controller sonet 6/0

Router(config-controller)# au-4 tug-3 2

Router(config-ctrlr-tug3)# no tug-2 4 e1 1 channel-group 10

Router(config-ctrlr-tug3)#

Creating an Unframed Logical Channel Group on an E1 Line

You can configure any of the E1 lines as unframed E1 data lines. An unframed E1 line contains no

framing byte in timeslot 0. Unframed E1s are not divided into timeslots, thus allowing the full 2048 kbps

bandwidth to be allocated to user data. Having no framing byte nor CRC-4 error detection, unframed

E1s offer fewer performance monitoring and alarm detection capabilities than framed E1s.

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