Dell S4820T - Page 1141

VLAN Scenario
In another scenario, to connect to the LAN, VRF-1, VRF-2, and VRF-3 use a single physical interface with
multiple tagged VLANs (instead of separate physical interfaces).
In this case, you configure three VLANs: VLAN-100, VLAN-200, and VLAN-300. Each VLAN is a member
of one VRF. A physical interface (tengigabitethernet 1/1 ) attaches to the LAN and is configured as a
tagged interface in VLAN-100, VLAN-200, and VLAN-300. The rest of this example is similar to the non-
VLAN scenario.
This VLAN scenario often occurs in a service-provider network in which you configure VLAN tags 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).
VRRP in VRF: Switch-1 VLAN Configuration
VRRP in VRF: Switch-2 VLAN Configuration
Switch-1
S1(conf)#ip vrf VRF-1 1
!
S1(conf)#ip vrf VRF-2 2
!
S1(conf)#ip vrf VRF-3 3
!
S1(conf)#interface TenGigabitEthernet 1/1
S1(conf-if-te-1/1)#no ip address
S1(conf-if-te-1/1)#switchport
S1(conf-if-te-1/1)#no shutdown
!
S1(conf-if-te-1/1)#interface vlan 100
S1(conf-if-vl-100)#ip vrf forwarding VRF-1
S1(conf-if-vl-100)#ip address 10.10.1.5/24
S1(conf-if-vl-100)#tagged TenGigabitethernet 1/1
S1(conf-if-vl-100)#vrrp-group 11
% Info: The VRID used by the VRRP group 11 in VRF 1 will be 177.
S1(conf-if-vl-100-vrid-101)#priority 100
S1(conf-if-vl-100-vrid-101)#virtual-address 10.10.1.2
S1(conf-if-vl-100)#no shutdown
!
S1(conf-if-te-1/1)#interface vlan 200
S1(conf-if-vl-200)#ip vrf forwarding VRF-2
S1(conf-if-vl-200)#ip address 10.10.1.6/24
S1(conf-if-vl-200)#tagged TenGigabitethernet 1/1
S1(conf-if-vl-200)#vrrp-group 11
% Info: The VRID used by the VRRP group 11 in VRF 2 will be 178.
S1(conf-if-vl-200-vrid-101)#priority 100
S1(conf-if-vl-200-vrid-101)#virtual-address 10.10.1.2
S1(conf-if-vl-200)#no shutdown
!
S1(conf-if-te-1/1)#interface vlan 300
S1(conf-if-vl-300)#ip vrf forwarding VRF-3
S1(conf-if-vl-300)#ip address 20.1.1.5/24
S1(conf-if-vl-300)#tagged TenGigabitethernet 1/1
S1(conf-if-vl-300)#vrrp-group 15
% Info: The VRID used by the VRRP group 15 in VRF 3 will be 243.
S1(conf-if-vl-300-vrid-101)#priority 255
S1(conf-if-vl-300-vrid-101)#virtual-address 20.1.1.5
S1(conf-if-vl-300)#no shutdown
Dell#show vrrp vrf vrf1 vlan 400
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Virtual Router Redundancy Protocol (VRRP)
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