Deployment Guide

25 Dell EMC Networking Virtualization Overlay with BGP EVPN
6.5 Downstream interface configuration
Each downstream (server-connected) interface is configured as follows.
1. Create server-connected port channels. In this example, port channel 100 is connected to Server 1,
and port channel 101 is connected to Server 2.
a. Give the port channel a description.
b. Use the switchport mode trunk command to enable the port channel to carry traffic for
multiple VLANs.
c. Allow tagged VLANs 1614 through 1616 on the trunked port channel.
d. Configure the port channel as an STP edge port.
e. Specify that the port channel is a VLT port channel.
f. Set the MTU to 9216 bytes to allow jumbo frames on the port channel.
2. Configure the port-channel members.
a. Give the physical interface a description.
b. Add the physical interface to the appropriate port channel.
Downstream interfaces
Leaf1a
Leaf1b
interface port-channel 100
description "Server 1"
switchport mode trunk
switchport trunk allowed vlan 1614-
1616
spanning-tree port type edge
vlt-port-channel 100
mtu 9216
interface port-channel 101
description "Server 2"
switchport mode trunk
switchport trunk allowed vlan 1614-
1616
spanning-tree port type edge
vlt-port-channel 101
mtu 9216
interface ethernet 1/1/31
description "Server 1"
channel-group 100 mode active
interface ethernet 1/1/32
description "Server 2"
channel-group 101 mode active
interface port-channel 100
description "Server 1"
switchport mode trunk
switchport trunk allowed vlan 1614-
1616
spanning-tree port type edge
vlt-port-channel 100
mtu 9216
interface port-channel 101
description "Server 2"
switchport mode trunk
switchport trunk allowed vlan 1614-
1616
spanning-tree port type edge
vlt-port-channel 101
mtu 9216
interface ethernet 1/1/31
description "Server 1"
channel-group 100 mode active
interface ethernet 1/1/32
description "Server 2"
channel-group 101 mode active
Note: Leaf switches 2a and 2b are configured in the same manner, with VLT port channels going to Server 3
and Server 4. Leaf switches 3a and 3b are connected to the switch acting as an external gateway/firewall via
a single VLT port channel.