R3102-R3103-HP 6600/HSR6600 Routers High Availability Configuration Guide

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 Enabling CFD (use the cfd enable command).
 Creating or deleting the MEPs on a port.
 Changes occur to the VLAN attribute of a port.
 The rule specified in the cfd mip-rule command changes.
Configuring CFD functions
Configuration prerequisites
Complete basic CFD settings.
Configuring CC on MEPs
You must configure CC before configuring other CFD functions. After the CC function is configured,
MEPs can send CCM frames to one another to check the connectivity between them.
Table 9 Relationship between the interval field value in the CCM message, the interval between CCM
messages, and the timeout time of the remote MEP
The interval field value in
the CCM message
The interval between CCM
messages
The timeout time of the remote MEP
1
10/3 milliseconds
35/3 milliseconds
2
10 milliseconds
35 milliseconds
3
100 milliseconds
350 milliseconds
4
1 second
3.5 seconds
5
10 second
35 seconds
6
60 seconds
210 seconds
7
600 seconds
2100 seconds
NOTE:
 The value range for the interval field value varies with device models.
 The following describes CCM messages with the interval field value 1 to 3 as high-speed CCM
messages, and those with the interval field 4 to 7 as low-speed CCM messages.
Follow these guidelines when you configure CC on a MEP:
 You must configure the same interval field value in CCM messages sent by the MEPs belonging
to the same MA.
 The cards without assistant CPUs discard high-speed CCM messages to reduce impact to the
CPU. In such cases, HP recommends configuring the same interval field value to make all MEPs
in the MA send low-speed CCM messages.
To configure CC on a MEP:
Step
Command
Remarks
1. Enter system view.
system-view
N/A