Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - Page 1229

Version 6.5.1.0 Description Added support for MAC Learning-Limit on the LAG. Usage Information This command and its options are supported on physical interfaces, static LAGs, LACP LAGs, and VLANs. If you do not specify the vlan option, the MAC address counters are not VLANbased. That is, the sum of the addresses learned on all VLANs (not having any learning limit configuration) is counted against the MAC learning limit. MAC Learning Limit violation logs and actions are not available on a per-VLAN basis. With the keyword no-station-move option, MAC addresses learned through this feature on the selected interface persist on a per-VLAN basis, even if received on another interface. Enabling or disabling this option has no effect on already learned MAC addresses. After the MAC address learning limit is reached, the MAC addresses do not age out unless you add the dynamic option. To clear statistics on MAC address learning, use the clear counters command with the learning-limit parameter. NOTE: If you configure this command on an interface in a routed VLAN, and after the MAC addresses learned reaches the limit set in the mac learninglimit command, IP protocols are affected. For example, VRRP sets multiple VRRP Masters and OSPF may not come up. When a channel member is added to a port-channel and there is not enough ACL CAM space, the MAC limit functionality on that port-channel is undefined. When this occurs, un-configure the existing configuration first and then reapply the limit with a lower value. Related Commands • clear counters - Clear counters used in the show interface command. • clear mac-address-table - clears the MAC address table of all MAC address learned dynamically. • mac learning-limit mac-address-sticky - Replaces deprecated no-station- move parameter. • show mac learning-limit - displays MAC learning-limit configuration. mac learning-limit learn-limit-violation Configure an action for a MAC address learning-limit violation. C9000 Series Syntax mac learning-limit learn-limit-violation {log | shutdown} To return to the default, use the no mac learning-limit learn-limitviolation {log | shutdown} command. Layer 2 1229