Concept Guide
The following output shows that Dell-4 and VLT domain 120 form OSPF neighborship with Dell-3.
Dell-3#sh ip ospf nei
!
Neighbor ID Pri State Dead Time Address Interface Area
4.4.4.4 1 FULL/ - 00:00:33 10.10.101.1 Vl 101 0
1.1.1.1 1 FULL/ - 00:00:34 10.10.102.2 Vl 102 0
Dell-4 VLT Conguration
vlt domain 110
peer-link port-channel 110
back-up destination 10.1.1.0
primary-priority 24576
system-mac mac-address 02:01:e8:d8:93:02
unit-id 1
peer-routing
! proxy-gateway static
remote-mac-address 00:01:e8:d8:93:07
remote-mac-address 00:01:e8:d8:93:e5
These MAC addresses are the system L2 interface addresses for each switch at the remote site, Dell-1 and Dell-2.
interface Vlan 102
description ospf peering vlan to DELL-3
ip address 10.10.102.2/30
ip ospf network point-to-point
no shutdown
The following is the OSPF conguration on Dell-4.
router ospf 1
router-id 1.1.1.1
network 10.10.102.0/30 area 0
The following output shows that Dell-4 forms OSPF neighborship with Dell-3.
ELEM-2#sh ip ospf nei
!
Neighbor ID Pri State Dead Time Address Interface Area
3.3.3.3 1 FULL/ - 00:00:32 10.10.102.1 Vl 102
With the above conguration, the two VLT domains act as VLT proxy gateways for any host that is moved from one VLT domain to
another.
1090
VLT Proxy Gateway