OcNOS-RON : Layer 3 Guide : Bidirectional Forwarding Detection Command Reference : Bidirectional Forwarding Commands : show bfd session ipv6
show bfd session ipv6
Use this command to display information about an IPv6 BFD session neighbor.
Command Syntax
show bfd session ipv6 X:X::X:X X:X::X:X (detail|)
show bfd session ipv6 vrf WORD X:X::X:X X:X::X:X (detail|)
show bfd session ipv6 X:X::X:X X:X::X:X <0-4294967295> (detail|)
show bfd session ipv6 vrf WORD X:X::X:X X:X::X:X <0-4294967295> (detail|)
Parameters
WORD
Name of a specific Virtual Routing and Forwarding instance
X:X::X:X
Display the local IPv6 address.
X:X::X:X
Display the neighbor IPv6 address.
<0-4294967295>
Display the interface index of the address.
detail
Display detailed information.
Command Mode
Exec mode and Privileged Exec mode
Applicability
This command was introduced before OcNOS version 1.3.
Example
The example below displays the command syntax and sample output from the command.
#show bfd session 2001::1222 2001::1223 3
Session Interface Index : 3 Session Index: 1
Lower Layer: IPv6 Single Hop
Session State : Up
Local Discriminator : 1 Remote Discriminator: 163
Local Address : 2001::1222/128 Remote Address: 2001::1223/128
Local Port : 49152 Remote Port: 3784
Timers in Milliseconds
Min Tx: 1000 Min Rx: 1000 Multiplier: 4
UP Count: 1 UPTIME: 00:06:03
 
 
#show bfd session ipv6 vrf raj fe80::ba6a:97ff:fed3:26c5 fe80::ba6a:97ff:fece:3bc5 detail
 
Session Interface Index : 10017 Interface name :xe16
Session Index : 259
Lower Layer : IPv6 Version : 1
Session Type : Single Hop Session State : Up
Local Discriminator : 259 Local Address : fe80::ba6a:97ff:fed3:26
c5/128
Remote Discriminator : 257 Remote Address : fe80::ba6a:97ff:fece:3
bc5/128
Local Port : 49152 Remote Port : 3784
Options :
 
Diagnostics : None
 
Timers in Milliseconds :
Min Tx: 250 Min Rx: 250 Multiplier: 3
Neg Tx: 250 Neg Rx: 250 Neg detect mult: 3
Min echo Tx: 1000 Min echo Rx: 1000 Neg echo intrvl: 0
Storage type : 2
Sess down time : 00:00:00
Sess Down Reason : NA
Bfd GTSM Disabled
Bfd Authentication Disabled
 
Counters values:
Pkt In : n/a Pkt Out : n/a
Pkts Drop : 00000000000000000000 Auth Pkts Drop : 00000000000000000000
Echo Out : 00000000000000000000 IPv6 Echo Out : 00000000000000000000
IPv6 Pkt In : 00000000000000001671 IPv6 Pkt Out : 00000000000000001675
UP Count : 1 UPTIME : 00:06:05
 
Protocol Client Info:
OSPF6-> Client ID: 5 Flags: 4
 
 
Table 1-95 explains the output fields.
 
Table 1-95: show BFD session fields
Entry
Description
Session Interface Index
ID number of the Interface.
Session Index
ID number for this BFD session.
Lower Layer
The lower layer protocol on which BFD is carried (IPv4 or IPv6).
Session State
The state of the session:
 
Init: session is initializing
Up: session is up.
Down: session is down
AdminDown: session has been administratively shutdown indefinitely
Session Type
Whether the session is Single Hop or Multiple Hop
Local Discriminator
A unique value generated by the transmitting device used to demultiplex multiple BFD sessions between the same pair of devices.
Remote Discriminator
The discriminator received from the corresponding remote device. This field is zero if the value is unknown.
Local Address
Local address of the transmitting device.
Remote Address
Remote address of the receiving device.
Local Port
UDP port number of the transmitting device.
Remote Port
UDP port number of the receiving device.
Min Tx
Minimum transmit interval in milliseconds.
Min Rx
Minimum receive interval in milliseconds.
Min echo Tx
Minimum transmit interval for echo packets
Min echo Rx
minimum receive interval for echo packets
Neg echo intrvl
The negotiated
Storage type
Indicates the storage type:
1 = other
2 = volatile
3 = nonvolatile
4 = permanent
5 = read only
Sess down time
How long the session was down
Sess Down Reason
Reason for Session being down
Bfd GTSM
Whether Generalized TTL Security Mechanism (GTSM) is enabled or disabled on the connection.
Multiplier
The negotiated transmit interval, multiplied by this value, provides the detection time for the receiving system in asynchronous mode.
UP Count
Number of times the BFD session has been in up state.
UPTIME
Length of time this BFD session has been in the up state.
Bfd Authentication
If authentication is used, if yes, the type authentication: simple password, MD5, and so on.
Pkt In
Number of Packets received on the BFD session
Pkt Out
Number of packets transmitted on the BFD session
Pkts Drop
Number of packets dropped on the session
Auth Pkts Drop
Number of Authentication packets dropped
Echo Out
Number of Transmitted BFD Echo Packets
IPv6 Echo Out
Number of transmitted BFD Ipv6 Echo packets
IPv6 Pkt In
Number of received IPv6 BFD packets
IPv6 Pkt Out
Number of transmitted IPV6 BFD packets
Protocol Client Info
Client ID and flags
Last modified date: 08/28/2023