Cam table, Mac aging, Ethernet configuration cli commands – Avaya C360 User Manual

Page 115

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Ethernet

Issue 1 July 2006

115

The first half of a MAC address contains the ID number of the device manufacturer. These IDs
are regulated by an Internet standards body. The second half of a MAC address represents the
serial number assigned to the device by the manufacturer.

CAM Table

The CAM Table contains a mapping of learned MAC addresses to ports and VLANs. The switch
checks forwarding requests against the addresses contained in the CAM Table:

If the MAC address appears in the CAM Table, the packet is forwarded to the appropriate
port.

If the MAC address does not appear in the CAM Table, or the MAC Address mapping has
changed, the frame is duplicated and copied to all the ports on the same VLAN. Once a
reply is received, the CAM table is updated with the new address/VLAN port mapping.

MAC Aging

The MAC Aging feature allows the user to configure a time interval after which unused entries in
the MAC Table will be deleted.

Following is the description of configuration of the C360 for the MAC Aging functionality.

MAC Aging is configured on the stack level.

MAC Aging can be globally enabled/disabled using the set mac-aging command.

"mac-aging-time" is set in minutes:

- Default = five minutes

- Minimum time = one minute; maximum time = 3600 min.

Ethernet Configuration CLI Commands

The following table contains a list of the configuration CLI commands for the Ethernet feature.
The rules of syntax and output examples are all set out in detail in the Reference Guide for the
Avaya C360 Converged Stackable Switch,
10-300506.

Table 30: Ethernet Configuration CLI Commands 1 of 3

In order to...

Use the following command...

Enable/Disable MAC Aging

set mac-aging

Set the MAC aging time in
minutes (0=don't age).

set mac-aging-time

1 of 3

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