19
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Configure MIP
auto-generation rules.
cfd mip-rule
{
default
|
explicit
}
service-instance
instance-id
By default, no rules for generating
MIPs are configured, and the
system does not automatically
create any MIP.
Configuring CFD functions
Configuration prerequisites
Complete basic CFD settings.
Configuring CC
Configure CC before you use the MEP ID of the remote MEP to configure other CFD functions. This
restriction does not apply when you use the MAC address of the remote MEP to configure other CFD
functions.
After the CC function is configured, MEPs in an MA can periodically send CCM frames to maintain
connectivity. When the lifetime of a CCM frame expires, the link to the sending MEP is considered
disconnected. When setting the CCM interval, use the settings described in Table 5.
Table 5
CCM interval field encoding
CCM interval field Transmission interval Maximum CCM lifetime
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 seconds 35 seconds
6 60 seconds 210 seconds
7 600 seconds 2100 seconds
NOTE:
The CCM messages with an interval field value of 1 to 3 are short-interval CCM messages. The
CCM messages with an interval field value of 4 to 7 are long-interval CCM messages..
Follow these guidelines when you configure CC on a MEP:
• Configure the same CCM interval field value for all MEPs in the same MA.
• After the CCM interval field is modified, the MEP must wait for another CCM interval before
sending CCMs.
• Configurations in Ethernet interface view take effect only on the current interface.
• Configurations in aggregate interface view take effect on the aggregate interface and all its
member ports.
• Configurations on a member port take effect only when the member port leaves the aggregation
group.
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