HP 6125G HP 6125G & 6125G/XG Blade Switches High Availability Configur - Page 68

Configuring RRPP timers, Configuring an RRPP ring group, Configuration restrictions and guidelines

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Step 3. Enter RRPP domain view. 4. Enable the specified RRPP ring. Command rrpp domain domain-id ring ring-id enable Remarks N/A Disabled by default. Configuring RRPP timers Perform this configuration on the master node of an RRPP domain. To configure RRPP timers: Step Command 1. Enter system view. system-view 2. Enter RRPP domain view. rrpp domain domain-id 3. Configure the Hello timer and Fail timer for the RRPP timer hello-timer hello-value domain. fail-timer fail-value Remarks N/A N/A By default, the Hello timer value is 1 second, and the Fail timer value is 3 seconds. NOTE: • The Fail timer value must be equal to or greater than three times the Hello timer value. • To avoid temporary loops when the primary ring fails in a dual-homed-ring network, make sure that the difference between the Fail timer value on the master node of the subring and that on the master node of the primary ring is greater than twice the Hello timer value of the master node of the subring. Configuring an RRPP ring group To reduce Edge-Hello traffic, adopt the RRPP ring group mechanism by assigning subrings with the same edge node/assistant-edge node to an RRPP ring group. An RRPP ring group must be configured on both the edge node and the assistant-edge node and can only be configured on these two types of nodes. Perform this configuration on both the edge node and the assistant-edge node in an RRPP domain. Configuration restrictions and guidelines • You can assign a subring to only one RRPP ring group. Make sure the RRPP ring group configured on the edge node and the RRPP ring group configured on the assistant-edge node contain the same subrings. Otherwise, the RRPP ring group cannot operate properly. • Make sure the subrings in an RRPP ring group share the same edge node and assistant-edge node and that the edge node and the assistant edge node have the same SRPTs. • Make sure a device plays the same role on the subrings in an RRPP ring group. The role can be the edge node or the assistant-edge node. • Make sure the RRPP ring group on the edge node and the RRPP ring group on the assistant-edge node have the same configurations and activation status. • Make sure that all subrings in an RRPP ring group have the same SRPTs. If the SRPTs of these subrings are configured or modified differently, the RRPP ring group cannot operate properly. 61

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61
Step
Command
Remarks
3.
Enter RRPP domain view.
rrpp domain
domain-id
N/A
4.
Enable the specified RRPP
ring.
ring
ring-id
enable
Disabled by default.
Configuring RRPP timers
Perform this configuration on the master node of an RRPP domain.
To configure RRPP timers:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter RRPP domain view.
rrpp domain
domain-id
N/A
3.
Configure the Hello timer and
Fail timer for the RRPP
domain.
timer hello-timer
hello-value
fail-timer
fail-value
By default, the Hello timer value is
1 second, and the Fail timer value
is 3 seconds.
NOTE:
•
The Fail timer value must be equal to or greater than three times the Hello timer value.
•
To avoid temporary loops when the primary ring fails in a dual-homed-ring network, make sure that the
difference between the Fail timer value on the master node of the subring and that on the master node
of the primary ring is greater than twice the Hello timer value of the master node of the subring.
Configuring an RRPP ring group
To reduce Edge-Hello traffic, adopt the RRPP ring group mechanism by assigning subrings with the same
edge node/assistant-edge node to an RRPP ring group. An RRPP ring group must be configured on both
the edge node and the assistant-edge node and can only be configured on these two types of nodes.
Perform this configuration on both the edge node and the assistant-edge node in an RRPP domain.
Configuration restrictions and guidelines
•
You can assign a subring to only one RRPP ring group. Make sure the RRPP ring group configured
on the edge node and the RRPP ring group configured on the assistant-edge node contain the same
subrings. Otherwise, the RRPP ring group cannot operate properly.
•
Make sure the subrings in an RRPP ring group share the same edge node and assistant-edge node
and that the edge node and the assistant edge node have the same SRPTs.
•
Make sure a device plays the same role on the subrings in an RRPP ring group. The role can be the
edge node or the assistant-edge node.
•
Make sure the RRPP ring group on the edge node and the RRPP ring group on the assistant-edge
node have the same configurations and activation status.
•
Make sure that all subrings in an RRPP ring group have the same SRPTs. If the SRPTs of these
subrings are configured or modified differently, the RRPP ring group cannot operate properly.