Administrator Guide

NOTE: When the MAC learning limit (MLL) is configured as no-station-move, the MLL will be
processed as static entries internally. For static entries, the MAC address will be installed in all
port-pipes, irrespective of the VLAN membership.
Recovering from Learning Limit and Station Move Violations
After a learning-limit or station-move violation shuts down an interface, you must manually reset it.
To reset the learning limit, use the following commands.
NOTE: Alternatively, you can reset the interface by shutting it down using the shutdown command
and then re-enabling it using the no shutdown command.
• Reset interfaces in the ERR_Disabled state caused by a learning limit violation or station move
violation.
EXEC Privilege mode
mac learning-limit reset
• Reset interfaces in the ERR_Disabled state caused by a learning limit violation.
EXEC Privilege mode
mac learning-limit reset learn-limit-violation [interface | all]
• Reset interfaces in the ERR_Disabled state caused by a station move violation.
EXEC Privilege mode
mac learning-limit reset station-move-violation [interface | all]
NIC Teaming
Network interface controller (NIC) teaming is available on the Z-Series platform.
NIC teaming is a feature that allows multiple network interface cards in a server to be represented by one
MAC address and one IP address in order to provide transparent redundancy, balancing, and to fully
utilize network adapter resources.
The following illustration shows a topology where two NICs have been teamed together. In this case, if
the primary NIC fails, traffic switches to the secondary NIC because they are represented by the same set
of addresses.
Layer 2
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