This default route is congured for testing purposes, as described in the next section. The access switch (A1) is used to generate ICMP
test PINGs to a loopback interface on CR1. This default route points to Dell#2’s VLAN 800 SVI interface. It’s in place to ensure that routed
test trac has Dell#2’s MAC address as the destination address in the Ethernet frame’s header
When A1 sends a packet to R1, the VLT peers act as the default gateway for each other. If the packet reaches Dell-1, irrespective of the
default gateway used, Dell-1 routes the packet to R1. Similarly, if the packet reaches Dell-2, irrespective of the default gateway used, Dell-2
routes the packet to R1.
eVLT Conguration Example
The following example demonstrates the steps to congure enhanced VLT (eVLT) in a network.
In this example, you are conguring two domains. Domain 1 consists of Peer 1 and Peer 2; Domain 2 consists of Peer 3 and Peer 4, as
shown in the following example.
In Domain 1, congure Peer 1 st, then congure Peer 2. When that is complete, perform the same steps for the peer nodes in Domain 2.
The interface used in this example is TenGigabitEthernet.
Figure 132. eVLT Conguration Example
eVLT Conguration Step Examples
In Domain 1, congure the VLT domain and VLTi on Peer 1.
Domain_1_Peer1#configure
Domain_1_Peer1(conf)#interface port-channel 1
Domain_1_Peer1(conf-if-po-1)# channel-member GigabitEthernet 1/8-1/9
Domain_1_Peer1(conf)#vlt domain 1000
Domain_1_Peer1(conf-vlt-domain)# peer-link port-channel 1
Domain_1_Peer1(conf-vlt-domain)# back-up destination 10.16.130.11
Domain_1_Peer1(conf-vlt-domain)# system-mac mac-address 00:0a:00:0a:00:0a
Domain_1_Peer1(conf-vlt-domain)# peer-routing
Domain_1_Peer1(conf-vlt-domain)# unit-id 0
Congure eVLT on Peer 1.
Domain_1_Peer1(conf)#interface port-channel 100
Domain_1_Peer1(conf-if-po-100)# switchport
Virtual Link Trunking (VLT)
919
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