HP 6125XLG R2306-HP 6125XLG Blade Switch High Availability Configuration Guide - Page 24

Configuring CFD functions, Configuration prerequisites, Configuring CC on MEPs

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• Changes occur to the VLAN attribute of a port. • The rule specified in the cfd mip-rule command changes. An MA with no VLAN attribute is mainly used to detect direct link status. It cannot generate MIPs. For an MA with VLAN attribute, if the same or higher level MEP exists on the interface, no MIP is generated for the MA on the interface. To configure the rules for generating MIPs: Step 1. Enter system view. 2. Configure MIP auto-generation rules. Command system-view cfd mip-rule { default | explicit } service-instance instance-id Remarks N/A 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 on MEPs Configure CC before configuring 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 1 2 3 4 5 6 7 Transmission interval 10/3 milliseconds 10 milliseconds 100 milliseconds 1 second 10 seconds 60 seconds 600 seconds Maximum CCM lifetime 35/3 milliseconds 35 milliseconds 350 milliseconds 3.5 seconds 35 seconds 210 seconds 2100 seconds Follow these guidelines when you configure CC on a MEP: • Configure the same CCM interval field value for all MEPs in the same MA. • This Switch Series does not support an interval field value in the range of 1 to 3. If you configure the interval field value as 1, 2, or 3, the value 4 takes effect. • Configurations in Layer 2 Ethernet interface view take effect only on the current interface. 19

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19
•
Changes occur to the VLAN attribute of a port.
•
The rule specified in the
cfd mip-rule
command changes.
An MA with no VLAN attribute is mainly used to detect direct link status. It cannot generate MIPs.
For an MA with VLAN attribute, if the same or higher level MEP exists on the interface, no MIP is
generated for the MA on the interface.
To configure the rules for generating MIPs:
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 on MEPs
Configure CC before configuring 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
Follow these guidelines when you configure CC on a MEP:
•
Configure the same CCM interval field value for all MEPs in the same MA.
•
This Switch Series does not support an interval field value in the range of 1 to 3. If you configure the
interval field value as 1, 2, or 3, the value 4 takes effect.
•
Configurations in Layer 2 Ethernet interface view take effect only on the current interface.