Chapter 22 Configuring Clocking

Configuring Network Clock for Cisco ASR 901 Router

Configuring Synchronous Ethernet for Copper Ports

You can configure synchronization on the copper ports using the following commands:

:

Command

Purpose

 

 

Router(config-if)# synce state slave

Configures synchronous ethernet copper port as slave.

 

 

Router(config-if)# synce state master

Configures synchronous ethernet copper port as master.

 

 

Verifying the Synchronous Ethernet configuration

Use the show network-clock synchronization command to display the sample output.

Router# show network-clocks synchronization

Symbols:

En - Enable, Dis - Disable, Adis - Admin Disable

 

 

 

NA - Not

Applicable

 

 

 

 

 

 

*

- Synchronization

source selected

 

 

 

 

#

- Synchronization

source force selected

 

 

 

&

- Synchronization

source manually switched

 

 

Automatic

selection process : Enable

 

 

 

 

Equipment

Clock : 2048 (EEC-Option1)

 

 

 

 

Clock Mode : QL-Disable

 

 

 

 

 

ESMC : Disabled

 

 

 

 

 

 

 

SSM Option : 1

 

 

 

 

 

 

 

T0 : GigabitEthernet0/4

 

 

 

 

 

Hold-off (global) : 300 ms

 

 

 

 

 

Wait-to-restore (global) : 300 sec

 

 

 

 

 

Tsm Delay

: 180 ms

 

 

 

 

 

 

Revertive

: No

 

 

 

 

 

 

 

Nominated

Interfaces

 

 

 

 

 

 

Interface

 

 

SigType

Mode/QL

Prio

QL_IN ESMC Tx

ESMC Rx

Internal

 

 

NA

NA/Dis

251

QL-SEC

NA

NA

To0/12

 

 

NA

NA/En

1

QL-FAILED NA

NA

External

0/0/0

 

10M

NA/Dis

2

QL-FAILED NA

NA

Gi0/1

 

 

NA

Sync/En

20

QL-FAILED

-

-

*Gi0/4

 

 

NA

Sync/En

21

QL-DNU

-

-

T4 Out

 

 

 

 

 

 

 

 

External

Interface

SigType

Input

Prio

Squelch

AIS

 

External

0/0/0

 

E1 CRC4

Internal

1

FALSE

FALSE

 

Use the show network-clock synchronization detail command to display all details of network-clock synchronization parameters at the global and interface levels.

Router# show network-clocks synchronization detail

Symbols:

En -

Enable, Dis - Disable,

Adis - Admin Disable

 

NA -

Not Applicable

 

 

*

-

Synchronization source

selected

 

#

-

Synchronization source

force selected

 

&

-

Synchronization source

manually switched

Automatic selection process : Enable

Equipment Clock : 2048 (EEC-Option1)

Clock Mode : QL-Disable

ESMC : Disabled

 

 

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

 

 

 

 

 

 

OL-23826-09

 

 

22-13

 

 

 

 

 

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Image 391
Cisco Systems A9014CFD Configuring Synchronous Ethernet for Copper Ports, Verifying the Synchronous Ethernet configuration