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

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Step
Command
Remarks
2. Enable RRPP.
rrpp enable
Disabled by default.
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.
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.
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.
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.
Follow these guidelines when you configure an RRPP ring group:
 You can assign a subring to only one RRPP ring group. The RRPP ring group configured on the
edge node and that configured on the assistant-edge node must contain the same subrings.
Otherwise, the RRPP ring group cannot operate correctly.
 Make sure the subrings in an RRPP ring group share the same edge node and assistant-edge
node, and 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 that on the assistant-edge node have the
same configurations and activation status.
 Make sure 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 correctly.