Cisco ASR 1000 Configuration Guide

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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
Chapter 10 Configuring the Ethernet SPAs
Using show Commands to Check SFP Module and XFP Module Status
Router(config)#[no] network-clock
synchronization ssm option {1| 2 {GEN1 |
GEN2}}
Example
Router(config)#network-clock
synchronization ssm option 2 GEN1
Configures the router to work in a synchronized
network mode as described in G.781. The following are
the options:
• Option 1: refers to synchronization networks
designed for Europe (SDH/ E1 framings are
compatible with this option).
• Option 2: refers to synchronization networks
designed for the US (SONET/T1 framings are
compatible with this option).

The default option is 1 and while choosing option 2,
you need to specify the second generation message
(GEN2) or first generation message (GEN1).
Note Network-clock configurations that are not
common between options need to be configured
again.
Router(config)#[no] network-clock
synchronization mode QL-enabled
Configures the automatic selection process for quality
level QL-enabled mode.
Note QL-enabled mode succeeds only if there are any
synchronization interfaces that are capable of
sending SSM.
Router(config)#[no] esmc process Enables or disables the ESMC process at system level.
Note This command fails if there is no SyncE capable
interface installed in the platform.
Router(config)#network-clock hold-off {0 |
<50-10000>} global
Example
Router(config)#network-clock hold-off
75 global
Configures general hold-off timer in milliseconds. The
default value is 300 milliseconds.
Note Displays a warning message for values below
300 ms and above 1800 ms.
Router(config)#network-clock external
<slot/card/port> hold-off {0 | <50-10000>}
Example
Router(config)#network-clock external
3/1/1 hold-off 300
Overrides hold-off timer value for external interface.
Note Displays a warning message for values above
1800 ms, as waiting longer causes the clock to
go into the holdover mode.
Router(config)#network-clock
wait-to-restore <0-86400> global
Example
Router(config)#network-clock external
wait-to-restore 1000 global
Sets the value for the wait-to-restore timer globally.
The wait to restore time is configurable in the range of
0 to 86400 seconds. The default value is 300 seconds.
Caution Ensure that you set the wait-to-restore values
above 50 seconds to avoid a timing flap.
Command Purpose

Cisco ASR 1000 Specifications

General

Brand	Cisco
Model	ASR 1000
Category	Network Router
Language	English