display bfd link-bundle session

Function

The display bfd link-bundle session command displays information about BFD for link-bundle sessions.

Format

display bfd link-bundle session [ interface { interface-name | interface-type interface-number } ]

Parameters

Parameter Description Value
interface interface-type interface-number

Displays information about BFD for link-bundle sessions on a specified interface.

The interface type can be Layer 3 Eth-Trunk.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name Operations
bfd read

Usage Guidelines

Usage Scenario

To view information about the main session and sub-sessions of a BFD for link-bundle session, run the display bfd link-bundle session command.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display information about BFD for link-bundle sessions.
<HUAWEI> display bfd link-bundle session
(w): State in WTR
(*): State is invalid
Total Up/Down Main Session Number : 1/0
Total Up/Down Sub Session Number  : 1/0
--------------------------------------------------------------------------------
  Name                   : a
  State                  : Up
  Local Discriminator    : 1048577
  Remote Discriminator   : -
  Session Detect Mode    : Asynchronous Mode Without Echo Function
  BFD Bind Type          : Interface(Eth-Trunk0) 
  Bind Session Type      : Static_Auto(Bundle_Main | Compatible)
  Bind Peer IP Address   : 10.1.1.1
  Bind Source IP Address : 10.1.1.2
  FSM Board Id           : -
  TOS-EXP                : 7
  Min Tx Interval (ms)   : 10
  Min Rx Interval (ms)   : 10
  Local Detect Multi     : 3
  WTR Interval (ms)      : - 
  Last Local Diagnostic  : Control Detection Time Expired
  Bind Application       : OSPF | ISIS | AUTO
  Sub Session Count      : 1
--------------------------------------------------------------------------------
      Sub Session Number     : 1
      State                  : Up
      Local Discriminator    : 16387
      Remote Discriminator   : 16385
      BFD Bind Type          : Interface(GigabitEthernet0/1/1) 
      Bind Session Type      : Dynamic(Bundle_Sub | Compatible)
      FSM Board Id           : 9
      Min Tx Interval (ms)   : 10
      Min Rx Interval (ms)   : 10
      Local Detect Multi     : 3
      Actual Tx Interval (ms): 10
      Actual Rx Interval (ms): 10
      Active Multi           : 3 
      Detect Interval (ms)   : 30
      Destination Port       : 3784
      Last Local Diagnostic  : Control Detection Time Expired
--------------------------------------------------------------------------------
Table 1 Description of the display bfd link-bundle session command output
Item Description
State

Current status of the BFD session.

WTR Interval (ms)

WTR time.

Total Up/Down Main Session Number

Number of main sessions.

Total Up/Down Sub Session Number

Number of sub-sessions.

Session Detect Mode

The value is Asynchronous Mode Without Echo Function.

Sub Session Count

Number of sub-sessions for the main session.

Sub Session Number

Name of the sub-session for the main session.

Name

Name of the BFD session.

Local Discriminator

Local discriminator of the BFD session.

Local Detect Multi

Configured local detection multiplier.

Remote Discriminator

Remote discriminator of the BFD session.

Detect Interval (ms)

Detection interval.

BFD Bind Type

Binding type of the BFD session. The local Layer 3 Eth-Trunk interface bound to the BFD for link-bundle session is displayed.

Bind Session Type

Establishment type of the BFD session. The establishment type of a BFD for link-bundle session is.

Static_Auto, indicating that the BFD session is a statically created BFD session with automatically negotiated discriminators.

  • Bundle_Main: main session.
  • Bundle_Sub: sub-session.
  • Compatible: support for interworking with non-Huawei devices.
Bind Peer IP Address

Peer IP address of the BFD session.

Bind Source IP Address

Local IP address of the BFD session.

Bind Application

Bound application.

FSM Board Id

Slot ID of the processing board on which the finite state machine resides:

  • "-" is displayed for the main session.
  • The slot ID of the processing board is displayed for a sub-session.
TOS-EXP

Priority of BFD packets.

Min Tx Interval (ms)

Configured minimum interval between sending packets.

Min Rx Interval (ms)

Configured minimum interval between receiving packets.

Last Local Diagnostic

Local diagnostic reason that the BFD session last went Down.

Actual Tx Interval (ms)

Actual interval between sending packets.

Actual Rx Interval (ms)

Actual interval between receiving packets.

Active Multi

Active detection multiplier.

Destination Port

Destination port number of session packets:

  • 3784 for the compatible mode.
  • 6784 for the non-compatible mode.
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
< Previous topic Next topic >