MAC Address Assignment

You must understand MAC addresses assignment if you perform one of the following actions:

Each chassis is assigned a base number of MAC addresses with a number reserved for ports and other internal purposes, and the remainder assigned to routable VLANs. The following table identifies the numbers provided by product.

Product

Base assignment

Reserved

Assigned to routable VLANs

5520 Series

1,024

First 256

remaining 768

VSP 4450 Series

256

First 128

remaining 128

VSP 4900 Series, VSP 7200 Series, VSP 7400 Series, and VSP 8000 Series

1,024

First 256

remaining 768

VSP 8600 Series

4,096

First 1,024

remaining 3,072

XA1400 Series

1,024

First 8

remaining 1,016

Virtual MAC Addresses

Virtual MAC addresses are the addresses assigned to VLANs. The system assigns a virtual MAC address to a VLAN when it creates the VLAN. The MAC address for a VLAN IP address is the virtual MAC address assigned to the VLAN.