Mac-Limit - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

mac-limit

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Copyright © 2010, Juniper Networks, Inc.
mac-limit number;
[edit vlans vlan-name]
Statement introduced in Junos OS Release 9.0 for EX Series switches.
Configure the number of MAC addresses allowed on a VLAN.
The number of MAC addresses allowed per VLAN varies depending on the EX switch
model. The output of the set vlans vlan-name mac-limit ?
addresses allowed on your EX switch.
MAC limit is disabled.
number—Maximum number of MAC addresses.
Range: 1 through 32768.
NOTE: Do not set the mac-limit to 1. The first learned MAC address is often
inserted into the forwarding database automatically (for instance, for Routed
VLAN Interfaces the first MAC address inserted into the forwarding database
is the MAC address of the RVI. For Aggregated Ethernet bundles using LACP,
the first MAC address inserted into the forwarding database in the forwarding
table is the source address of the protocol packet). The switch will therefore
not learn MAC addresses other than the automatic addresses when the
mac-limit is set to 1, and this will cause problems with MAC learning and
forwarding.
system—To view this statement in the configuration.
system-control—To add this statement to the configuration.
show vlans on page 1737
Example: Setting Up Basic Bridging and a VLAN for an EX Series Switch on page 1525
Configuring MAC Table Aging (CLI Procedure) on page 1602
Understanding Bridging and VLANs on EX Series Switches on page 1501
Chapter 68: Configuration Statements for Bridging and VLANs
provides the number of MAC
1677