Chapter 22 Configuring Clocking

Configuring PTP for the Cisco ASR 901 Router

 

Command

Purpose

 

 

 

Step 7

transport ipv4 unicast interface

Sets port transport parameters.

 

interface-type interface-number

interface-type—The type of the interface.

 

 

 

Example:

interface-number—The number of the interface.

 

 

 

Router(config-ptp-port)# transport

 

 

ipv4 unicast interface loopback 0

 

 

 

 

Step 8

clock-destination clock-ip-address

Specifies the IP address of a clock destination when the

 

 

router is in PTP master mode.

 

Example:

 

 

Router(config-ptp-port)#

 

 

clock-destination 8.8.8.1

 

 

 

 

Step 9

sync interval interval

(Optional) Specifies the interval used to send PTP

 

 

synchronization messages. The intervals are set using log

 

Example:

base 2 values. The Cisco ASR 901 router supports the

 

following values:

 

Router(config-ptp-port)# sync

 

 

 

interval -5

-5—1 packet every 1/32 seconds, or 32 packets per

 

 

second.

 

 

-6—1 packet every 1/64 seconds, or 64 packets per

 

 

second.

 

 

The default is -6.

 

 

 

Step 10

announce interval interval

(Optional) Specifies the interval for PTP announce

 

 

messages. The intervals are set using log base 2 values, as

 

Example:

follows:

 

 

 

Router(config-ptp-port)# announce

4—1 packet every 16 seconds

 

interval 2

3—1 packet every 8 seconds

 

 

 

 

2—1 packet every 4 seconds

 

 

1—1 packet every 2 seconds

 

 

0—1 packet every second

 

 

The default is 1.

 

 

 

Step 11

end

Exits clock port configuration mode and enters privileged

 

 

EXEC mode.

 

Example:

 

 

Router(config-ptp-port)# end

 

 

 

 

Configuring Slave Ordinary Clock

Complete the following steps to configure a slave ordinary clock:

SUMMARY STEPS

1.enable

2.configure terminal

3.ptp clock ordinary domain domain

 

 

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

 

 

 

 

 

 

OL-23826-09

 

 

22-21

 

 

 

 

 

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Cisco Systems A9014CFD manual Configuring Slave Ordinary Clock, 22-21