show bfd

Syntax

show bfd [session <ID>] [vsx-peer]

Description

Displays information for all BFD sessions or for a specific BFD session.

Commands context

Manager (#)

Parameters

session <ID>

Specifies a session ID.

[vsx-peer]

Shows the output from the VSX peer switch. If the switches do not have the VSX configuration or the ISL is down, the output from the VSX peer switch is not displayed.

Authority

Administrators

Usage

Possible values for State are:

  • Up
  • Down

  • AdminDown

  • Init

Possible values for Local diagnostic and Remote diagnostic are:

  • Control detection time expired (1): The session has stopped receiving BFD control packets from the peer after one detection time.
  • Echo function failed: The session has stopped receiving BFD Echo packets, so the session was declared Down.

  • Neighbor signaled session down: A packet from the peer was received with either AdminDown or Down state.

  • Forwarding plane reset: Not set in this release.

  • Path down: The forwarding path when Down.

  • Concatenated path down: Not set in this release.

  • Administratively down: The administrator has disabled BFD.

  • Reverse concatenated path down: Not set in this release.

Examples

Showing information for all BFD sessions:

switch# show bfd

Admin status: enabled
Echo source IP: 100.100.100.1
Statistics:
Total number of control packets transmitted: 20
Total number of control packets received: 17
Total number of control packets dropped: 0

Session Interface VRF       Source IP               Destination IP           Echo     State        Application
------- --------- --------- ---------------         ---------------          -------- ------------ ------------
1       tunnel1   default   fe80::94f1:28a0:1ef:700 fe80::94f1:28a0:1ef:a100 enabled  up           ospfv3
2       tunnel1   default   fe80::94e2:37b1:1ef:111 fe80::94e2:37b1:1ef:555  enabled  up           ospfv3

Showing information for BFD session 1:

switch# show bfd session 1
BFD Session Information – Session 1
Min Tx Interval (sec) : 10
Min Rx Interval (sec) : 10
Min Echo Rx Interval (msec) : 700
Detect Multiplier : 3
Application : OSPF
Local Discriminator : 1
Remote Discriminator : 1
Echo : Enabled
Local Diagnostic : N/A
Remote Diagnostic: N/A
Flap count: 0
Internal state: Up
Session Interface VRF       Source IP               Destination IP           Echo     State        Application
------- --------- --------- ---------------         ---------------          -------- ------------ ------------
1       tunnel1   default   fe80::94f1:28a0:1ef:700 fe80::94f1:28a0:1ef:a100 enabled  up           ospfv3