Administrator Guide

vlan vlan-id E-Series only: Enter the keyword then the VLAN ID. The range is from 1 to 4094.
dynamic (OPTIONAL) Enter the keyword dynamic to allow aging of MACs even though a
learning limit is configured.
station-move-
violation
(OPTIONAL) Enter the keywords station-move to allow a station move on
learned MAC addresses.
Defaults
● On S-Series, the default behavior is dynamic.
NOTE: “Static” means manually entered addresses, which do not age.
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.12.0 Deprecated the no-station-move command (replaced by the mac-learning-
limit mac-address-sticky command).
8.3.7.0 Introduced on the S4810.
8.3.1.0 Added the vlan option on the E-Series.
8.2.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series. Added the station-move option.
6.5.1.0 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 VLAN-based. 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 learning-limit 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.
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