Administrator Guide

The following output displays the routes learned using OSPF. Dell-2 also learns the routes to the loopback addresses on R1 through OSPF.
Dell-2#show ip route ospf
Destination Gateway Dist/Metric Last Change
----------- ------- ----------- -----------
O 2.2.2.2/24 via 192.168.20.3, Vl 20 110/2 02:15:25
O 3.3.3.2/24 via 192.168.20.3, Vl 20 110/2 02:15:25
O 4.4.4.2/24 via 192.168.20.3, Vl 20 110/2 02:15:25
O 172.15.1.1/32 via 192.168.20.3, Vl 20 110/2 02:15:25
O 172.16.1.2/32 via 192.168.20.1, Vl 20 110/1 02:15:25
The following output displays the MAC address of all interfaces in the system. All interfaces, physical and virtual, have the same MAC
address. This is the address used for peer routing.
DellEMC#2#show interfaces | grep Hardware
Hardware is DellEMCEth, address is 90:b1:1c:f4:29:f3
Hardware is DellEMCEth, address is 90:b1:1c:f4:29:f3
Hardware is DellEMCEth, address is 90:b1:1c:f4:29:f3
Hardware is DellEMCEth, address is 90:b1:1c:f4:29:f3
(Output truncated for brevity)
Verify if peer routing has populated the CAM table with the correct information using the show cam mac command.
DellEMC#2#sh cam mac stack-unit 0 port-set 0
VlanId Mac Address Region Interface
20 90:b1:1c:f4:29:f3 STATIC Po 10
20 00:0d:bc:6e:93:00 DYNAMIC Po 1
20 ff:ff:ff:ff:ff:ff STATIC 00001
900 90:b1:1c:f4:29:f3 STATIC Po 10
900 ff:ff:ff:ff:ff:ff STATIC 00001
800 90:b1:1c:f4:29:f3 STATIC Po 10
800 ff:ff:ff:ff:ff:ff STATIC 00001
0 ff:ff:ff:ff:ff:ff STATIC 00001
0 90:b1:1c:f4:2c:bd LOCAL_DA 00001
0 90:b1:1c:f4:29:f3 LOCAL_DA 00001
The MAC addresses of the VLAN interfaces of both VLT peers are registered in the L2 CAM as LOCAL_DA addresses.
R1 Configuration
Configuration on Interfaces
R1#show run | find Loopback2
interface Loopback2
ip address 2.2.2.2 255.255.255.0
!
interface Loopback3
ip address 3.3.3.2 255.255.255.0
!
interface Loopback4
ip address 4.4.4.2 255.255.255.0
R1#show run int port-channel 1
interface Port-channel1
switchport
ip address 192.168.20.3 255.255.255.248
R1#show run | find router
router ospf 1
router-id 172.15.1.1
passive-interface default
no passive-interface Port-channel1
network 2.2.2.0 0.0.0.255 area 0
network 3.3.3.0 0.0.0.255 area 0
network 4.4.4.0 0.0.0.255 area 0
(The above subnets correspond to loopback interfaces lo2, lo3 and lo4. These three loopback
interfaces are advertised to the VLT pair, DellEMC#1 and DellEMC#2)
Virtual Link Trunking (VLT)
873