6 configuring mac address table, 1 overview, 2 references – CANOGA PERKINS 9175 Configuration Guide User Manual

Page 33: 3 terminology, 4 configuring address aging time

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CanogaOS Configuration Guide

6-1

6 Configuring MAC Address Table

6.1 Overview

MAC address table contains address information for the switch to forward traffic between
ports. The address table includes these types of address:

• Dynamic address: the source address learnt by the switch and will be aged after

aging time if this address is not hit. We only support IVL learning mode.

• Static address: the source address manually added by administrators.

6.2 References

IEEE 802.1D
IEEE 802.1Q

6.3 Terminology

Following is a brief description of terms and concepts used to describe the MAC address
table:
IVL
Independent VLAN Learning: for a given set of VLANs, if a given individual MAC
Address is learned in one VLAN, which learned information is not used in forwarding
decisions taken for that address relative to any other VLAN in the given set.

SVL
Shared VLAN Learning: for a given set of VLANs, if an individual MAC Address is
learned in one VLAN, which learned information is used in forwarding decisions taken for
that address relative to all other VLANs in the given set.

6.4 Configuring Address Aging Time

The aging time is not exact time. If aging time set to N, then the dynamic address will be
aged after N~2N interval. The default aging time is 300 seconds.

6.4.1 Topology

Figure 6-1: Address Aging Time

6.4.2 Configurations

Bridge 1

DUT#configure terminal

Enter the Configure mode.

DUT(config)#mac-address-table ageing-time 10

Set dynamic address aging time to 10 seconds.

DUT(config)#end

Exit to exec mode.

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