Specifications

show switchport backup mac-address-table update
561
Item Meaning Displayed information
Status Status of the primary port Forwarding: Forwarding
Blocking: Blocking
Down: Link down
Secondary The number of the secondary
port or the channel group
--
Status Status of the secondary port Forwarding: Forwarding
Blocking: Blocking
Down: Link down
Preemption Delay The time value (in seconds) for
automatic or timer switch-back
- is displayed when this item is not set.
Limit The time remaining until a timer
switch-back (in seconds)
- is displayed when this item is not set.
Retransmit Number of retransmissions of
MAC address update frames
- is displayed when this item is not set.
VLAN VLANs that are subject to the
MAC address update
functionality
- is displayed when this item is not set.
Exclude-VLAN VLANs that are not subject to
the MAC address update
functionality
- is displayed when this item is not set.
Impact on communication
None
Response messages
Table 31-6 List of response messages for the show switchport backup mac-address-table
update 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.
Not ready. Please wait a minute. Uplink redundancy is being initialized. Wait a while.
Notes
If there is no configuration for the port channel interface specified as the secondary port, no
information about a primary or secondary pair is displayed.