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

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Step
Command
Remarks
1. Enter system view.
system-view
N/A
2. Enter RPR logical interface
view.
interface rpr interface-number
N/A
3. Set the TC fast timer.
rpr timer tc-fast tc-fast-value
10 milliseconds by default.
4. Set the TC slow timer.
rpr timer tc-slow tc-slow-value
100 milliseconds by default.
Configuring the TP timers
The TP fast/slow timer defines the fast/slow interval at which TP frames are sent. When a station starts
initializing or detects a topology change, nine TP frames are sent at the fast interval. When the ring
topology is stable, the station begins to send TP frames at the slow interval.
To configure the TP timers:
Step
Command
Remarks
1. Enter system view.
system-view
N/A
2. Enter RPR logical interface
view.
interface rpr interface-number
N/A
3. Set the TP fast timer.
rpr timer tp-fast tp-fast-value
10 milliseconds by default.
4. Set the TP slow timer.
rpr timer tp-slow tp-slow-value
100 milliseconds by default.
Configuring the WTR timer
When a protection switching event occurs on a station due to link failure, the station enters automatic
protection state. After the link recovers, the station enters the idle protection state. The WTR timer
defines the delay that a station transits to the idle protection state after entering the automatic
protection state.
To configure the WTR timer:
Step
Command
Remarks
1. Enter system view.
system-view
N/A
2. Enter RPR logical interface
view.
interface rpr interface-number
N/A
3. Set the WTR timer.
rpr timer wtr wtr-value
10 milliseconds by default.
Testing connectivity between RPR stations
You can use Echo Request/Echo Response messages to test the connectivity between two stations and
locate failure points if any. The connectivity between the current station and the destination station is
considered as normal if the connection between the two stations is normal on both the sending ringlet
and the receiving ringlet. The destination station should be able to receive the Echo Request messages
that the current station sends along the specific ringlet, and the current station should be able to