Cisco ISE - Line Card ISE Manual de usuario descargar pdf (Pagina 26)

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

Setting the Framing Format on a T1 Line

You can specify the T1 framing format using the tug-2 tug-2-number t1 t1-line-number framing {esf |

sf} AU-3 configuration command. Table 5 describes the syntax of this command.

To configure a T1 line, you must enter controller configuration mode and specify the line card slot and

port. The following examples use port 0 of a SONET controller in slot 6.

• The following example selects ESF framing for the first T1 line in the fourth TUG-2:

Router(config)# controller sonet 6/0

Router(config-controller)# au-3 1

Router(config-ctrlr-au3)# tug-2 4 t1 1 framing esf

Router(config-ctrlr-au3)#

• The following example selects SF framing with an HDLC idle pattern of 0x7E for the first T1 line

in the fourth TUG-2:

Router(config)# controller sonet 6/0

Router(config-controller)# au-3 1

Router(config-ctrlr-au3)# tug-2 4 t1 1 framing sf hdlc-idle 0x7e

Router(config-ctrlr-au3)#

Note When you select SF framing, consider using the no t1-line-number yellow

detection command to turn off yellow alarm detection, because the yellow alarm

can be incorrectly detected with SF framing. You can use the [no] t1

t1-line-number yellow {detection | generation} command (where t1-line-number

is 1 to 28) to turn the detection or generation of a yellow alarm on and off.

Table 5 T1 Line Framing Command Syntax

Range Description

tug-2 tug-2-number 1 to 7 When framing is SDH, AUG mapping is AU-3, and

mode of operation is c-11, tug-2-number is a number

in the range from 1 to 7.

t1 t1-line-number 1 to 4 In c-11 mode, a number in the range from 1 to 4.

framing {esf | sf

[hdlc-idle {0x7E |

0xFF}]}

Extended Super

Frame (ESF) or

Super Frame (SF)

Defines the type of framing for the T1 line. The

default framing format is Extended Super Frame

(ESF). Super Frame format offers the hdlc-idle

option, which can be set to use either 0x7E or 0xFF as

the HDLC idle pattern.

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Cisco ISE - Line Card ISE Manual de usuario Pagina 26