Configuring The Bfd To Modify The Pst; Establishing The Configuration Task - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
l
----End
Example
Run the
<HUAWEI> display bfd session all verbose
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Session MIndex : 256
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Local Discriminator
Session Detect Mode
BFD Bind Type
Bind Session Type
Bind Peer Ip Address
NextHop Ip Address
Bind Interface
FSM Board Id
Min Tx Interval (ms)
Actual Tx Interval (ms): 10
Local Detect Multi
Echo Passive
Destination Port
Proc interface status : Enable(Sub-If)
WTR Interval (ms)
Active Multi
Last Local Diagnostic
Bind Application
Session TX TmrID
Session Init TmrID
Session Echo Tx TmrID
PDT Index
Session Description
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The preceding display shows that the value of the field Proc interface status is Enable(Sub-
If). This indicates that the status of the BFD session aa is associated with the status of the main
interface and the sub-interface.

5.6 Configuring the BFD to Modify the PST

By configuring a BFD session to modify the PST, you can speed up link fault detection by the
BFD session. This function is applicable to only single-hop BFD sessions.

5.6.1 Establishing the Configuration Task

Before configuring the modification of the PST through a BFD session, familiarize yourself with
the applicable environment and complete pre-configuration task of configuring the single-hop
BFD session and data preparation.
Applicable Environment
If the BFD can modify the Port State Table (PST), it modifies the corresponding entry in the
PST when it detects that an interface is Down. Through the PST, other upper application
protocols can acknowledge whether the interface has a fault.
Issue 02 (2011-09-10)
Run the display bfd session
name ] } [ verbose ] [ slot slot-id ] command to check the BFD6 session.
display bfd session
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{ all | static | peer-ipv6 peer-ipv6 [ vpn-instance vpn-instance-
all verbose command.
(One Hop) State : Up
: 11 Remote Discriminator
: Asynchronous Mode Without Echo Function
: Interface(GigabitEthernet1/2/0)
: Static
: 224.0.0.184
: 224.0.0.184
: GigabitEthernet1/2/0
: 1 TOS-EXP
: 10 Min Rx Interval (ms)
Actual Rx Interval (ms): 10
: 3 Detect Interval (ms)
: Disable Acl Number
: 3784 TTL
Process PST
: --
: 3
: --
: IFNET
: -- Session Detect TmrID
: -- Session WTR TmrID
: --
: FSM-0|RCV-0|IF-0|TOKEN-0
: --
5 BFD Configuration
Name : aa
: 22
: 7
: 10
: 30
: --
: 255
: Disable
: --
: --
254