Configuring The Router Mac Address - Cisco Catalyst 4500 Series Software Configuration Manual

Chapter 5 Configuring Virtual Switching Systems
match access-group name VSL-DOT1x
match access-group name VSL-BPDU
match access-group name VSL-CDP
match access-group name VSL-LLDP
match access-group name VSL-SSTP
match access-group name VSL-GARP
class-map match-any VSL-L3-CONTROL-PACKETS
match access-group name VSL-IPV4-ROUTING
match access-group name VSL-BFD
match access-group name VSL-DHCP-CLIENT-TO-SERVER
match access-group name VSL-DHCP-SERVER-TO-CLIENT
match access-group name VSL-DHCP-SERVER-TO-SERVER
match access-group name VSL-IPV6-ROUTING
class-map match-any VSL-MULTIMEDIA-TRAFFIC
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class-map match-any VSL-VOICE-VIDEO-TRAFFIC
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class-map match-any VSL-SIGNALING-NETWORK-MGMT
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Configuring the Router MAC Address

On VSS, all routing protocols are centralized on the active supervisor engine. A common router MAC
address is used for Layer 3 interfaces on both active and standby switches. Additionally, to ensure
non-stop forwarding, the same router MAC address is used after switchover to Standby, so that all layer
3 peers see a consistent router MAC address.
There are three ways to configure a router MAC address on VSS:
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By default, the virtual domain based router MAC address is used. Any change of router MAC address
configuration requires a reboot of both VSS supervisor engines
The follow table shows how to configure the router MAC address.
dscp af41
dscp af42
dscp af43
dscp af31
dscp af32
dscp af33
dscp af21
dscp af22
dscp af23
dscp ef
dscp cs4
dscp cs5
dscp cs2
dscp cs3
dscp cs6
dscp cs7
HHH—Manually set a router MAC address. Ensure that this MAC address is reserved for this usage.
chassis—Use the mac-address range reserved for Chassis. This is the Cisco MAC address assigned
to the chassis.
use-virtual—Use the mac-address range reserved for the VSS. This is the served Cisco MAC address
pool, which is derived from a base MAC address +vvs domain-id.
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Configuring a VSS
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