DELL N3000 Manuel D’Utilisation

Configuring Link Aggregation

to the primary switch for handling. FDB entries learned on MLAG 

interfaces are synced between the two devices.

interface range gi1/0/1-4

channel-group 2 mode active

exit

interface range gi1/0/5-8

channel-group 3 mode active

exit

interface port-channel 2

switchport mode trunk

vpc 1

exit

interface port-channel 3

switchport mode trunk

vpc 2

exit

MLAG supports minimally intrusive firmware upgrade of the MLAG peer 

switches. In most cases, protocols with retransmission capability, e.g., TCP, 

will experience a limited interruption of service. Network operators must 

ensure that the aggregate bandwidth in use on the MLAG can be supported 

on a single MLAG peer.
Use the show vpc brief command to determine which switch is the primary 

switch. This procedure upgrades the standby switch first, followed by the 

primary switch. Following this order reduces the reconvergence time to the 

minimum.

Disable DCPDP if enabled:

1 On the secondary switch, disable DCPDP if enabled and save the 

configuration.

2 On the primary switch, disable DCPDP if enabled and save the 

configuration.

Upgrade the MLAG standby switch:

1 On the MLAG standby switch, shut down the MLAG-enabled physical 

links (not the port-channel).