Dell Networking S4810, Reference Manual

Page: 1043 / 1761

Version 9.0.2.0 Introduced on the S6000.
Version
8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version
8.3.12.0 Deprecated the
no-station-move
command (replaced by
the
mac-learning-limit mac-address-sticky
command).
Version 8.3.7.0 Introduced on the S4810.
Version 8.3.1.0 Added the
vlan
option on the E-Series.
Version 8.2.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series. Added the
station-move
option.
Version 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
mac learning-limit mac-address-sticky — Replaces deprecated
no-station-move
parameter.
Layer 2
1043