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13 Using MLAG in Dell Networking N-Series Switches | version 1.5
4.1 Physical Connectivity
After completion of the configuration, physical connectivity between all four switches can be established.
Table 3 serves as a guide for cabling the switches.
Physical Connectivity
Dell Networking N3048
From Switch / Port
To Switch / Port
N3048-1 / te1/0/1
N3048-2 / te1/0/1
N3048-1 / gi1/0/47
N3048-3 / gi1/0/27
N3048-1 / gi1/0/48
N3048-4 / gi1/0/30
N3048-2 / gi1/0/11
N3048-3 / gi1/0/28
N3048-2 / gi1/0/12
N3048-4 / gi1/0/29
4.2 Configuring MLAG and Port Channels
The following steps show how to configure Single-tier MLAG. Figure 6 shows the MLAG configuration
required for switches N3048-1 and N3048-2, including setting up port channels, creating the MLAG domain,
and setting up the peer link.
The peer link requires configuration of a native VLAN. It can use VLAN 1 (the default native VLAN) or another
VLAN that has been set to native. This is a limitation of the peer link keepalive messages.
Interfaces used to connect each peer to the partner switch LAG do not need to match on each peer. For
instance, in the example above one partner LAG interface connects to 1/0/47 on the primary peer while the
other interface connects to 1/0/11 on the secondary peer.
N3048-1
N3048-2
Create a VLAN for MLAG and all partner traffic. Create a VLAN for MLAG and all partner traffic.
configure
vlan 30
end
configure
vlan 30
end
Configure the port channel for the peer link
- must be trunk mode.
Configure the port channel for the peer link
- must be trunk mode.
configure
interface port-channel 1
description MLAG_peer_link
switchport mode trunk
vpc peer link
end
configure
interface port-channel 1
description MLAG_peer_link
switchport mode trunk
vpc peer link
end