Checking The Configuration; Configuring Ospf Gr; Establishing The Configuration Task - Huawei S6700 Series Configuration Manual

S6700 Series Ethernet Switches
Configuration Guide - IP Routing
l Actual interval at which BFD packets are transmitted on the local switch = Max { configured interval
l Actual interval at which BFD packets are received on the local switch = Max { configured interval transmit-
l Actual time for detecting BFD packets = Actual interval at which BFD packets are received on the local
For example:
l On the local switch, the configured interval at which BFD packets are transmitted is 200 ms; the interval at
l On the peer switch, the configured interval at which BFD packets are transmitted is 100 ms; the interval at
Then:
l On the local switch, the actual interval at which BFD packets are transmitted is 600 ms calculated by using
l On the peer switch, the actual interval at which BFD packets are transmitted is 300 ms calculated by using
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4.9.4 Checking the Configuration

After configuring BFD for OSPF, you can view information about the BFD session between
two OSPF neighbors.
Prerequisites
All BFD for OSPF configurations are complete.
Procedure
l
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4.10 Configuring OSPF GR

Configuring OSPF GR to avoid traffic interruption and route flapping caused by the active/
standby switchover.

4.10.1 Establishing the Configuration Task

Before configuring OSPF GR, familiarize yourself with the applicable environment, complete
the pre-configuration tasks, and obtain the data required for the configuration. This will help
you complete the configuration task quickly and efficiently.
Issue 01 (2012-03-15)
NOTE
transmit-interval at which BFD packets are transmitted on the local switch, configured interval receive-
interval at which BFD packets are received on the peer switch }
interval at which BFD packets are transmitted on the peer switch, configured interval receive-interval at
which BFD packets are received on the local switch }
switch x Configured detection multiplier multiplier-value on the peer switch
which BFD packets are received is set to 300 ms; the detection multiplier is 4.
which BFD packets are received is 600 ms; the detection multiplier is 5.
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.
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 ospf [process-id ] bfd session interface-type interface-number [ router-
id ] or display ospf [process-id ] bfd session { router-id | all } command to check
information about the BFD session between two OSPF neighbors.
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