show bfd session counters missed-hellos

show bfd session counters missed-hellos {session-id first {- last} | neighbor ipaddress {vr [vrname | all]} | vr [vrname| all]} {detail | no-refresh | refresh}


This command displays statistics of missed hello packets.

Syntax Description

session-id Display statistics for sessions having session ID within the given range.
first Only or first of range of session
last Last of range of session ID.
ipaddress Specify IPv4 or IPv6 Destination address.
vr Virtual router.
vrname Virtual router name.
all All virtual routers.
detail Detailed view of statistics.
no-refresh Page by page display without continuous refresh.
refresh Continuous refresh of output.



Usage Guidelines

You can select the sessions by either neighbor IP address, by range of session IDs, by VR or display all the available sessions. Display selection by session ID is useful if the neighbor IP is link-local and VLAN name is long (i.e. close to 32 characters).


The following example displays summary view with the refresh option.

# show bfd session counters missed-hellos
Neighbor                                          Session ID   Number Of Misses                                        
                                                                  1     2     2+
fe80::204:96ff:fe7e:c2f%test                        251    15     8      7
fe80::204:96ff:fe7e:c2f%verify                      252    10     6      4                                            300 >9999 >9999  >9999        


This command was first available in ExtremeXOS 21.1.

Platform Availability

This command is available on ExtremeSwitching X440-G2, X450-G2, X460-G2, X465, X590, X620, and X695 series switches.