Dell Force10 S4810P

1118 | Virtual Router Redundancy Protocol (VRRP)
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Figure 55-26. VRRP in VRF: Switch-2 Non-VLAN Configuration
VLAN Scenario
In another scenario, VRF-1, VRF-2, and VRF-3 use a single physical interface with multiple tagged
VLANS (instead of separate physical interfaces) to connect to the LAN. In this case, three VLANs are
configured: VLAN-100, VLAN-200, and VLAN-300. Each VLAN is a member of one VRF. A physical
interface (gigabitethernet 0/1) attaches to the LAN and is configured as a tagged interface in VLAN-100,
VLAN-200, and VLAN-300. The rest of this user case is the same as the non-VLAN scenario.
This VLAN scenario often occurs in a service-provider network in which VLAN tags are configured for
traffic from multiple customers on customer-premises equipment (CPE), and separate VRF instances
associated with each VLAN are configured on the provider edge (PE) router in the point-of-presence
(POP).
Switch-2
S2(conf)#ip vrf default-vrf 0
!
S2(conf)#ip vrf VRF-1 1
!
S2(conf)#ip vrf VRF-2 2
!
S2(conf)#ip vrf VRF-3 3
!
S2(conf)#interface GigabitEthernet 12/1
S2(conf-if-gi-12/1)#ip vrf forwarding VRF-1
S2(conf-if-gi-12/1)#ip address 10.10.1.2/24
S2(conf-if-gi-12/1)#vrrp-group 11
% Info: The VRID used by the VRRP group 11 in VRF 1 will be 177.
S2(conf-if-gi-12/1-vrid-101)#priority 255
S2(conf-if-gi-12/1-vrid-101)#virtual-address 10.10.1.2
S2(conf-if-gi-12/1)#no shutdown
!
S2(conf)#interface GigabitEthernet 12/2
S2(conf-if-gi-12/2)#ip vrf forwarding VRF-2
S2(conf-if-gi-12/2)#ip address 10.10.1.2/24
S2(conf-if-gi-12/2)#vrrp-group 11
% Info: The VRID used by the VRRP group 11 in VRF 2 will be 178.
S2(conf-if-gi-12/2-vrid-101)#priority 255
S2(conf-if-gi-12/2-vrid-101)#virtual-address 10.10.1.2
S2(conf-if-gi-12/2)#no shutdown
!
S2(conf)#interface GigabitEthernet 12/3
S2(conf-if-gi-12/3)#ip vrf forwarding VRF-3
S2(conf-if-gi-12/3)#ip address 20.1.1.6/24
S2(conf-if-gi-12/3)#vrrp-group 15
% Info: The VRID used by the VRRP group 15 in VRF 3 will be 243.
S2(conf-if-gi-12/3-vrid-105)#priority 100
S2(conf-if-gi-12/3-vrid-105)#virtual-address 20.1.1.5
S2(conf-if-gi-12/3)#no shutdown