display bfd statistics session

Function

The display bfd statistics session command displays BFD session statistics.

Format

display bfd statistics session { all | static } [ for-lsp | for-pw | for-te | for-vsi-pw ](S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730S-H and S6730-H)

display bfd statistics session { ldp-lsp peer-ip ip-address nexthop nexthop-address [ interface interface-type interface-number ] | static-lsp lsp-name | mpls-te interface interface-type interface-number [ te-lsp ] | pw interface interface-type interface-number [ secondary ] } (S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730S-H and S6730-H)

display bfd statistics session { vsi-pw vsi vsi-name peer peer-address [ vc-id vc-id ] } (S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730S-H and S6730-H)

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

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

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

Parameters

Parameter	Description	Value
all	Displays statistics about all BFD sessions.	-
static	Displays statistics about static BFD sessions.	-
dynamic	Displays statistics about dynamic BFD sessions and static BFD sessions with automatically negotiated discriminators.	-
discriminator discr-value	Displays statistics about the BFD sessions with a local discriminator.	The value is an integer that ranges from 1 to 16383.
peer-ip default-ip	Displays statistics about multicast BFD sessions.	-
peer-ip ip-address	Displays statistics about the BFD session bound to the specified peer IP address.	-
static-auto	Displays statistics about the static BFD session with the automatically negotiated discriminators.	-
vpn-instance vpn-instance-name	Displays statistics about the BFD sessions bound to a specified VPN instance.	The value must be an existing VPN instance name.
for-ip	Displays statistics about the BFD sessions for detecting IP links.	-
for-pw	Displays statistics about the BFD sessions for detecting PWs.	-
for-lsp	Displays statistics about the BFD sessions for detecting LSPs.	-
for-te	Displays statistics about the BFD sessions for detecting a TE tunnel.	-
for-vsi-pw	Displays statistics about the BFD sessions for detecting VSI PWs.	-
vsi vsi-name	Displays statistics about the BFD session with the specified VSI PW instance name.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
peer peer-address	Displays statistics about the BFD session for detecting a VSI PW with the specified peer IPv4 address.	The value is expressed in dotted decimal notation.
vc-id vc-id	Displays statistics about the BFD session with the specified VC ID.	The value is an integer that ranges from 1 to 4294967295.
ldp-lsp	Displays statistics about the BFD sessions for detecting LDP LSPs.	-
nexthop nexthop-address	Displays statistics about the BFD session with the specified next hop address.	The value is expressed in dotted decimal notation.
interface-type interface-number	Displays statistics about the BFD session with the specified outbound interface. interface-type specifies the interface type. interface-number specifies the interface number.	-
static-lsp	Displays statistics about the BFD sessions for detecting static LSPs.	-
lsp-name	Displays statistics about the BFD session for detecting the static LSP with the specified name.	The value is a string of 1 to 19 case-sensitive characters without spaces.
mpls-te	Displays statistics about the BFD sessions for detecting MPLS TE tunnels.	-
te-lsp	Displays statistics about the BFD session for detecting the primary LSP bound to a TE.	-
pw	Displays statistics about the BFD sessions for detecting PWs.	-
secondary	Displays statistics about the BFD session for detecting the secondary PW.	-
peer-ipv6 ipv6-address	Displays statistics about the BFD6 session bound to a specified IPv6 address.	-
for-ipv6	Displays statistics about static or all BFD6 sessions.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

The display bfd statistics session command displays BFD session statistics.

Precautions

If static BFD with automatically negotiated discriminators and dynamic BFD share a session, you can specify all, static-auto, or dynamic for query.
Before using the display bfd statistics session command to view BFD session statistics, run the reset bfd statistics command to clear existing statistics.

Example

# Display statistics on all BFD sessions.

<HUAWEI> display bfd statistics session all 
--------------------------------------------------------------------------------
Session MIndex : 16397        (Multi Hop)State : Up           Name : dyn_8196
--------------------------------------------------------------------------------
  Session Type                        : Dynamic
  Bind Type                           : IP
  Local/Remote Discriminator          : 8100/8101
  Received Packets                    : 1710577
  Send Packets                        : 1710593
  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                         : 2011-10-23 14:28:34
  Last Down Time                      : 0000-00-00 00:00:00
  Total Time From Last DOWN           : ---D:--H:--M:--S                        
  Last Up Time                        : 2011-11-14 11:06:52+08:00               
  Last Up Lasting Time                : 002D:16H:49M:17S                        
  Total Time From Create              : 000D:04H:45M:35S                        
  Auth Time (ms)                      : 0
  Auth Seq Known (ms)                 : 0
  Trigger If-down Delay Time (ms)      : 0
--------------------------------------------------------------------------------

     Total Session Number : 1

**Table 1** Description of the display bfd statistics session command output
Item	Description
Session MIndex	Index of BFD session entries.
State	Status of a BFD session.
Name	Name of a BFD session.
Session Type	Mode in which a BFD session is established: Static: indicates that a BFD session is established statically. Dynamic: indicates that a BFD session is established dynamically. Static_Auto: indicates that a BFD session is established with automatically negotiated discriminators. Entire_Dynamic: indicates the BFD sessions that are triggered entirely dynamically. After dynamic BFD session setup is enabled on the sink point of an LSP, a BFD session of this type is created.
Bind Type	BFD session binding type.
Local/Remote Discriminator	Local and remote discriminator of a BFD session. To set the local and remote discriminators of a BFD session, run the discriminator command.
Received Packets	Number of BFD packets received at the local end. This field can be deleted using the reset bfd statistics command.
Send Packets	Number of BFD packets sent by the local end. This field can be deleted using the reset bfd statistics command.
Received Bad Packets	Number of received error packets.
Send Bad Packets	Number of sent error packets.
Down Count	Number of times that a BFD session became Down.
ShortBreak Count	Number of times that a BFD session was transiently disconnected.
Send Lsp Ping Count	Number of LSP ping packets sent by the local end.
Dynamic Session Delete Count	Number of dynamic BFD sessions deleted.
Create Time	Time when a BFD session was created.
Last Down Time	Last time when a BFD session became Down.
Total Time From Last DOWN Down Status Lasting Time	Period from last time when a BFD session became Down to the current time. If a BFD session is Up, "Total Time From Last DOWN" is displayed. If a BFD session is Down, "Down Status Lasting Time" is displayed.
Last Up Time	Last time the BFD session becomes Up.
Last Up Lasting Time	Period from the last time when a BFD session is Up to the current time.
Total Time From Create	Period from the time when a BFD session was created to the current time.
Total Session Number	Number of BFD sessions.
Auth Time (ms)	Remaining time of the authentication timeout timer, in milliseconds
Auth Seq Known (ms)	Remaining time of the sequence number learning timer, in milliseconds
Trigger If-down Delay Time (ms)	Remaining time of the delay timer after which BFD instructs the interface to go down, in milliseconds
Total Session Number	Total number of BFD sessions