`show bfd neighbors`

Displays Bidirectional Forwarding Detection (BFD) neighbor information.

Syntax

show bfd neighbors[ip-address]

show bfd neighbors bgp[details][ip-address|ipv6-address]

show bfd neighbors details[ip-address|ipv6-address]

show bfd neighbors ospf[details][ip-address|ipv6-address]

Parameters

ip-address: Specifies an IP address.
bgp: Specifies BFD neighbor session information for BGP.
details: Specifies detailed information.
ipv6-address: Specifies an IPv6 address.
ospf: Specifies BFD neighbor session information for OSPF.

Modes

User EXEC mode

Usage Guidelines

This command is supported for ICX 7850 devices only.

The show bfd neighbors command displays the following information:

Output Field	Description
NeighborAddress	The IPv4 or IPv6 address of the remote peer.
State	The current state of the BFD session: A.DOWN - The administrative down state. DOWN - Down state. INIT - The initialization state. UP- Up state. UNKNOWN - The current state is unknown.
Interface	Specifies the interface on which the BFD session is running.
Holddown(ms)	The interval, in milliseconds, after which the session transitions to the down state if no message is received.
Interval(ms)	The interval, in milliseconds, at which the local device sends BFD messages to the remote peer.
R/H	R - Heard from Remote. Displays Y for Yes or N for No. H - Hops. Display S for single hop or M for multihop.

The show bfd neighbors details command displays the following information:

Output Field	Description
NeighborAddress	The IPv4 or IPv6 address of the remote peer.
State	The current state of the BFD session: UP- Up state. DOWN - Down state. A.DOWN - The administrative down state. INIT - The initialization state. UNKNOWN - The current state is unknown.
Interface	Specifies the interface on which the BFD session is running.
Holddown(ms)	The interval, in milliseconds, after which the session transitions to the down state if no message is received.
Interval(ms)	The interval, in milliseconds, at which the local device sends BFD messages to the remote peer.
R/H	R - Heard from Remote. Displays Y for Yes or N for No. H - Hops. Display S for single hop or M for multihop.
Registered Protocols(Protocol/VRFID):	Specifies which protocols are registered to use BFD on the port.
Local	The local device.
Disc	The value of the local discriminator field in the BFD control message in the last message sent.
Diag	Value of the diagnostic field in the BFD control message in the last message sent.
Demand	Value of the demand bit in the BFD control message in the last message sent.
Poll	Value of the poll bit in the BFD control message in the last message sent.
Port	The port that BFD is enabled on.
MinTxInterval(ms)	The interval, in milliseconds, during which the device will send a BFD message from the neighbor port to the peer.
MinRxInterval(ms)	The interval, in milliseconds, that the neighbor device waits to receive a BFD message from the peer.
Multiplier	The number of consecutive BFD control packets that must be missed from a BFD peer before the connection to that peer is considered down.
Remote	Remote peer.
Negotiated	Negotiated time intervals.
Neg Tx	Negotiated TX interval.
Neg Rx	Negotiated RX interval.
Stats:	BFD session statistics.
RX:	Total number of BFD control messages received from the remote peer.
TX:	Total number of BFD control messages sent to the remote peer.
SessionUpCount	The number of times the session has transitioned to the UP state.
SysUpTime	The amount of time that the system has been up.
Session Uptime	The amount of time the BFD session has been in the UP state.
LastSessionDownTimestamp	The system time at which the session last transitioned from the UP state to any other state.

Examples

The following example shows sample output from the show bfd neighbors command.

device> show bfd neighbors

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]
Total Neighbors in VRF [default]: 1 A-DOWN:0 DOWN:0 INIT:0 UP:1

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   20.20.20.1        10.10.10.1        UP     1/1/13     300   300   900      N/M/N/Y

The following example shows sample output from the show bfd neighbors command when an IP address is specified.

device> show bfd neighbors 20.20.20.1

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   20.20.20.1        10.10.10.1        UP     1/1/13     300   300   900      N/M/N/Y

The following example shows sample output from the show bfd neighbors bgp command.

device> show bfd neighbors bgp

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]
Total Neighbors: 1  Application:bgp  VRF [default] A-DOWN:0 DOWN:0 INIT:0 UP:1

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   2.2.2.2           2.2.2.1           UP     v2         NA    NA    NA       N/S/Y/Y

The following example shows sample output from the show bfd neighbors bgp command when an IP address is specified.

device> show bfd neighbors bgp 2.2.2.2

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   2.2.2.2           2.2.2.1           UP     v2         NA    NA    NA       N/S/Y/Y 
  Number of Applications[Protocol] in vrf default-vrf:    2
      ospf: MinTx: 300    MinRx: 300    Multiplier: 3   Holdtime: 0     
       bgp: MinTx: 300    MinRx: 300    Multiplier: 3   Holdtime: 0     
  SysUpT: 0d:0h:13m:30s.285ms   Sess-UpT: 0d:0h:3m:5s.227ms   Sess-dTS: 0d:0h:7m:52s.558ms
  Outgoing Lag: lg9  Lag Port: NA  Prev State: INIT 
  MBfd Sessions: 1
     M-Id State  R-State  LagPort  NegRx|NegTx|DTime   R
     ---- -----  -------  -------  ------------------- -
     158  UP     UP       1/1/10   300   300   900     Y

The following example shows sample output from the show bfd neighbors bgp command when the details keyword is used.

device> show bfd neighbors bgp details

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]
Total Neighbors: 1  Application:bgp  VRF [default] A-DOWN:0 DOWN:0 INIT:0 UP:1

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   2.2.2.2           2.2.2.1           UP     v2         NA    NA    NA       N/S/Y/Y 
  Number of Applications[Protocol] in vrf default-vrf:    2
      ospf: MinTx: 300    MinRx: 300    Multiplier: 3   Holdtime: 0     
       bgp: MinTx: 300    MinRx: 300    Multiplier: 3   Holdtime: 0     
  SysUpT: 0d:0h:13m:30s.317ms   Sess-UpT: 0d:0h:3m:5s.227ms   Sess-dTS: 0d:0h:7m:52s.558ms
  Outgoing Lag: lg9  Lag Port: NA  Prev State: INIT 
  MBfd Sessions: 1
     M-Id State  R-State  LagPort  NegRx|NegTx|DTime   R
     ---- -----  -------  -------  ------------------- -
     158  UP     UP       1/1/10   300   300   900     Y

The following example shows sample output from the show bfd neighbors details command.

device> show bfd neighbors details

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]
Total Neighbors in VRF [default]: 1 A-DOWN:0 DOWN:0 INIT:0 UP:1

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   20.20.20.1        10.10.10.1        UP     1/1/13     300   300   900      N/M/N/Y
  Number of Applications[Protocol] in vrf default-vrf:    1
    static: MinTx: 300    MinRx: 300    Multiplier: 3   Holdtime: 0
  Local : Epid: 1  dem: 0  poll: 0  diag:  No diag
                MinTx: 300    MinRx: 300    Multiplier: 3
  Remote Epid: 1  dem: 0  poll: 0  diag:  No diag
                MinTx: 300    MinRx: 300    Multiplier: 3
  Last Event: Local up   Remote State: UP   Status: No Error
  Prev State: INIT
  SysUpT: 0d:0h:34m:11s.638ms   Sess-UpT: 0d:0h:31m:48s.847ms   Sess-dTS: 0d:0h:0m:0s.0ms
  UDP: Target port: 4784  Source port: 49152
  Session in LP: Yes   Nhop/Arp change: No  Nhop IP: 10.10.10.2
  Arp: Yes  Out Port: 1/1/13  Vlan: 1  Mac: cc4e.24f7.2440

The following example shows sample output from the show bfd neighbors details command when an IP address is specified.

device> show bfd neighbors details 20.20.20.1

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   20.20.20.1        10.10.10.1        UP     1/1/13     300   300   900      N/M/N/Y
  Number of Applications[Protocol] in vrf default-vrf:    1
    static: MinTx: 300    MinRx: 300    Multiplier: 3   Holdtime: 0
  Local : Epid: 1  dem: 0  poll: 0  diag:  No diag
                MinTx: 300    MinRx: 300    Multiplier: 3
  Remote Epid: 1  dem: 0  poll: 0  diag:  No diag
                MinTx: 300    MinRx: 300    Multiplier: 3
  Last Event: Local up   Remote State: UP   Status: No Error
  Prev State: INIT
  SysUpT: 0d:0h:35m:11s.318ms   Sess-UpT: 0d:0h:32m:48s.847ms   Sess-dTS: 0d:0h:0m:0s.0ms
  UDP: Target port: 4784  Source port: 49152
  Session in LP: Yes   Nhop/Arp change: No  Nhop IP: 10.10.10.2
  Arp: Yes  Out Port: 1/1/13  Vlan: 1  Mac: cc4e.24f7.2440

The following example shows sample output from the show bfd neighbors ospf command.

device> show bfd neighbors ospf

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]
Total Neighbors: 1  Application:ospf  VRF [default] A-DOWN:0 DOWN:0 INIT:0 UP:1

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   2.2.2.2           2.2.2.1           UP     v2         NA    NA    NA       N/S/Y/Y

The following example shows sample output from the show bfd neighbors ospf command when an IP address is specified.

device> show bfd neighbors ospf 2.2.2.2

Flags: H:Hop [S:Single/M:Multi] P:Passive-Mode M:Micro-BFD R:RxRemote [Y:Yes/N:No]
MinTx/MinRx/NegTx/NegRx/DTime [milliseconds]  HoldTime [seconds]

Id  Neighbor          Local             State  NHopIntf   NegRx|NegTx|DTime    P/H/M/R
--  --------          -----             -----  --------   -----------------    -------
1   2.2.2.2           2.2.2.1           UP     v2         NA    NA    NA       N/S/Y/Y 
  Number of Applications[Protocol] in vrf default-vrf:    2
      ospf: MinTx: 300    MinRx: 300    Multiplier: 3   Holdtime: 0     
       bgp: MinTx: 300    MinRx: 300    Multiplier: 3   Holdtime: 0     
  SysUpT: 0d:0h:13m:30s.463ms   Sess-UpT: 0d:0h:3m:5s.227ms   Sess-dTS: 0d:0h:7m:52s.558ms
  Outgoing Lag: lg9  Lag Port: NA  Prev State: INIT 
  MBfd Sessions: 1
     M-Id State  R-State  LagPort  NegRx|NegTx|DTime   R
     ---- -----  -------  -------  ------------------- -
     158  UP     UP       1/1/10   300   300   900     Y

History

Release version	Command history
08.0.90	This command was introduced.

Show Commands

show bfd neighbors

`show bfd neighbors`