display bfd statistics session

Function

The display bfd statistics session command views statistics of BFDs.

Format

display bfd statistics session { all | static } [ for-ip | for-ipv6 ]

display bfd statistics session { dynamic | discriminator local-discr-value | peer-ip { default-ip | peer-ip [ vpn-instance vpn-instance-name ] } | static-auto }

display bfd statistics session peer-ipv6 peer-ipv6 [ vpn-instance vpn-instance-name ]

Parameters

Parameter	Description	Value
all	Displays the statistics of all BFD sessions.	-
static	Displays the statistics of the static BFD session.	-
for-ip	Displays the statistics of a BFD session that monitors an IPv4 link.	-
for-ipv6	Displays the statistics of a BFD6 session that monitors an IPv6 link.	-
discriminator local-discr-value	Displays the statistics of the BFD session with a local discriminator.	It is an integer ranging from 1 to 16383.
dynamic	Displays the statistics of the dynamic BFD session.	-
peer-ip peer-ip	Displays the statistics of the BFD session bound to a specified IP address.	It is in dotted decimal notation.
default-ip	Display statistics about a BFD session with a default multicast address.	-
vpn-instance vpn-instance-name	Displays the statistics of the BFD session bound with a specified VPN instance.	It must be the name of the existing VPN instance configured with the RD.
static-auto	Displays the statistics of the static BFD session with automatically negotiated discriminators.	-
peer-ipv6 peer-ipv6	Displays statistics about a BFD6 session bound to a specified peer IPv6 address.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

To view statistics about BFD sessions, you can run the display bfd statistics session command.

Precautions

If static BFD with automatically negotiated discriminators and dynamic BFD share a session, you can specify all, static-auto, or dynamic for query.
Running the reset bfd statistics command to clear statistics about received and sent BFD packets is recommended before collecting statistics about BFD sessions by running the display bfd statistics session command.

Example

# View statistics of the BFD session.

<sysname> display bfd statistics session all
--------------------------------------------------------------------------------
Session MIndex : 16384     (One Hop) State : Up        Name : test
--------------------------------------------------------------------------------
  Session Type                        : Static 
  Bind Type                           : IP
  Local/Remote Discriminator          : 1/2
  Received Packets                    : 240059
  Send Packets                        : 240059
  Received Bad Packets                : 0
  Send Bad Packets                    : 0
  Down Count                          : 0
  ShortBreak Count                    : 0
  Send Lsp Ping Count                 : 0
  Dynamic Session Delete Count        : 0
  Create Time                         : 2014-11-28 09:52:06+08:00
  Last Down Time                      : -
  Total Time From Last DOWN           : ---D:--H:--M:--S
  Last Up Time                        : 2014-11-28 09:52:11+08:00
  Last Up Lasting Time                : 000D:04H:45M:30S
  Total Time From Create              : 000D:00H:44M:15S
--------------------------------------------------------------------------------

     Total Session Number : 1

**Table 1** Description of the **display bfd statistics session all** command output
Item	Description
Session MIndex	Index of a BFD session entry
State	Current status of the BFD session
Name	Name of the BFD session
Session Type	Type of the BFD session: Static: A BFD session is set up through static configuration. Dynamic: A BFD session is created dynamically. Entire_Dynamic: A BFD session is created entirely dynamically. This type of session can be created after BFD sessions are created passively on the egress of an LSP. Static_Auto: A BFD session with automatically negotiated discriminators is set up statically.
Bind Type	Binding type of a BFD session
Local/Remote Discriminator	Local and remote discriminators
Received Packets	Number of BFD control packets received on the local end Run the reset bfd statistics command to clear the output of this field.
Send Packets	Number of BFD control packets sent by the local end Run the reset bfd statistics command to clear the output of this field.
Received Bad Packets	Number of the received error packets
Send Bad Packets	Number of packets sent unsuccessfully
Down Count	Number of times of the BFD session that turns to Down
ShortBreak Count	Number of times of the BFD session that short breaks
Send Lsp Ping Count	Number of sent LSP ping packets
Dynamic Session Delete Count	Number of deleted dynamic BFD sessions
Create Time	Time when the BFD session is created
Last Down Time	Time of the last Down BFD session
Total Time From Last DOWN Down Status Lasting Time	Time period from the last Up BFD session to the current time If a BFD session is Down, "Down Status Lasting Time" is displayed, indicating the time elapsed since the last BFD session went Down.
Last Up Time	Time when the BFD session went Up last time
Last Up Lasting Time	Period during which the BFD session has been Up
Total Time From Create	Time period from the time the BFD session is created to the current time
Total Session Number	Total number of BFD sessions