Specifications

show switchport backup mac-address-table update statistics
563
Display items
Table 31-7 Display items for statistics about MAC address update frames
Item Meaning Displayed information
System ID MAC address of the Switch --
Port<IF#>
Interface port number --
ChGr<Channel group#>
Channel group number --
Transition count Number of primary and secondary
switchovers
--
Update transmit total packets Number of MAC address update frames
that have been sent
--
Transmission over flows Number of overflows when MAC address
update frames were sent
Note: This counter is incremented
when the MAC addresses subject
to sending exceeds 1024 in one
switchover.
Last change time Date and time the primary and secondary
were last switched and the time that has
elapsed since then
year/month/day
hour:minute:second UTC
(d days hh:mm:ss ago)
#1
-- is displayed if the primary and
secondary has never been
switched.
Last transmit time Date and time a MAC address update
frame was last sent and the time that has
elapsed since then
year/month/day
hour:minute:second UTC
(d days hh:mm:ss ago)
#1
-- is displayed if the frame has
never been sent.
#1: Display of elapsed time:
If the elapsed time is 24 hours or less: hh
:mm:ss ago (hh=hours, mm=minutes,
ss=seconds)
If the elapsed time is more than 24 hours: d
days hh:mm:ss ago (d=number of days,
hh=hours, mm=minutes, ss=seconds)
Impact on communication
None
Response messages
Table 31-8 List of response messages for the show switchport backup mac-address-table
update statistics command
Message Description
Uplink redundant is not configured. Uplink redundancy has not been set. Check the
configuration.
Mac-address-table update is not configured. The functionality for sending MAC address update frames
has not been set or enabled.