R3303-HP HSR6800 Routers High Availability Configuration Guide

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The interval field value in
the CCM messa
g
e
The interval between CCM
messa
g
es
The timeout time of the remote MEP
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:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Configure the interval field
value in the CCM messages
sent by MEPs.
cfd cc interval interval-value
service-instance instance-id
Optional.
By default, the interval field value is 4.
3. Enter Ethernet interface view.
interface interface-type
interface-number
N/A
4. Enable CCM sending on a
MEP.
cfd cc service-instance
instance-id mep mep-id
enable
Disabled by default.
Configuring LB on MEPs
The LB function can verify the link state between the local MEP and the remote MEP or MIP.
To configure LB on a MEP:
Task Command Remarks
Enable LB.
cfd loopback service-instance instance-id mep
mep-id { target-mep target-mep-id | target-mac
mac-address } [ number number ]
Disabled by default.
Available in any view.
Configuring LT on MEPs
LT can trace the path between the source and target MEPs, and can also locate link faults by sending LT
messages automatically. The two functions are implemented in the following way: