Checking The Configurations - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
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6.10.6 Checking the Configurations

After BFD for OSPFv3 is configured, you can check information about the BFD session.
Prerequisites
The BFD is enabled and configured for OSPFv3.
Procedure
l
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6.11 Configuring OSPFv3 IP FRR
With OSPFv3 IP FRR, devices can rapidly switch traffic from faulty links to backup links
without interrupting traffic. This protects traffic and greatly improves the reliability of OSPFv3
networks.
6.11.1 Before You Start
Before configuring OSPFv3 IP FRR, familiarize yourself with the usage scenario, complete the
pre-configuration tasks, and obtain the data required for the configuration.
Issue 02 (2014-09-30)
NOTE
l Actual interval at which BFD packets are transmitted on the local devices = Max { configured interval
min-transmit-value at which BFD packets are transmitted, configured interval min-receive-value at
which BFD packets are received on the peer device }
l Actual interval at which BFD packets are received on the local devices = Max { configured interval
min-transmit-value at which BFD packets are transmitted on the peer device, configured interval min-
receive-value at which BFD packets are received on the local device }
l Actual time for detecting BFD packets = Actual interval at which BFD packets are received on the
local device x Configured detection multiplier detect-multiplier-value
For example:
l On the local device, the configured interval at which BFD packets are transmitted is 200 ms; the interval
at which BFD packets are received is set to 300 ms; the detection multiplier is 4.
l On the peer device, the configured interval at which BFD packets are transmitted is 100 ms; the interval
at which BFD packets are received is 600 ms; the detection multiplier is 5.
Then:
l On the local device, the actual interval at which BFD packets are transmitted is 600 ms calculated by
using the formula max {200 ms, 600 ms}; the interval at which BFD packets are received is 300 ms
calculated by using the formula max {100 ms, 300 ms}; the detection period is 1500 ms calculated by
multiplying 300 ms by 5.
l On the peer device, the actual interval at which BFD packets are transmitted is 300 ms calculated by
using the formula max {100 ms, 300 ms}, the actual interval at which BFD packets are received is 600
ms calculated by using the formula max {200 ms, 600 ms}, and the detection period is 2400 ms
calculated by multiplying 600 ms by 4.
Run the display ospfv3 [ process-id ] bfd session [ interface-type interface-number ]
[ neighbor-id ] [ verbose ] command to check the BFD session information.
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6 OSPFv3 Configuration

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