Per-Vlan Mac Learning Limit - Dell Force10 Z9000 Configuration Manual

Per-VLAN MAC Learning Limit

Per-VLAN MAC Learning Limit
An individual MAC learning limit can be configured for each VLAN using Per-VLAN MAC Learning
Limit.
One application of Per-VLAN MAC Learning Limit is on access ports. In
Exchange Point (IXP) connects multiple Internet Service Provider (ISP). An IXP can provide several types
of services to its customers including public an private peering. Public peering means that all customers are
connected to one VLAN, and if one ISP wants to peer with another ISP, it establishes a BGP peering
session over this VLAN. Private Peering means that the IXP sets up a separate VLAN between two
customers that want to peer privately; only the ports of these two ISPs would belong to this VLAN, and
they would peer via BGP. In
the ISPs that have subscribed to private and public peering since these access ports are members of
multiple VLANs.
Figure 24-1. Per-VLAN MAC Learning Limit
ISP A, B, and C are all public peers through VLAN 10.
In addition, ISP A and C are private peers on a separate
VLAN, VLAN 20. Since the access ports for ISP A
and C are members of multiple VLANs, Per-VLAN MAC
Learning Limit can be applied to those ports.
Task
Configure a MAC learning limit on a
VLAN.
Display the MAC learning limit
counters for a VLAN.
| Layer 2
526
is available only on platform:
Figure 24-1, Per-VLAN MAC Learning Limit is used on the access ports for
Internet Exchange Point
Command Syntax
mac learning-limit limit vlan vlan-id
show mac learning-limit [interface slot/port [vlan
vlan-id]]
e
Figure
interface GigabitEthernet 1/1
...
mac learning-limit 1 vlan 10
mac learning-limit 1 vlan 20
24-1, an Internet
Command Mode
INTERFACE
EXEC Privilege