DELL N3000 User Manual

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Configuring Link Aggregation
When the peer-link is configured, the MLAG component disables learning 
on the port-channel configured as the peer-link.
Configure DCPDP (optional):
a
Configure a VLAN routing interface and assign a local IP address 
(different from the peer address).
b
Configure the peer-switch IP address (the destination IP address)
c
If needed, configure the UDP port number to send and receive the 
protocol messages.
d
Configure the source IP address
e
Enable the protocol. The protocol starts running if MLAG is globally 
enabled.
vlan 100
interface vlan 100
ip address 192.168.0.2 255.255.255.0
exit
vpc domain 1
peer-keepalive destination 192.168.0.1 source 192.168.0.2
peer detection enable
exit
Configure the MLAG partner interfaces:
Configure a port-channel as an MLAG interface and assign to a VPC. Each 
MLAG must have a unique VPC ID and the VPC configuration must be 
identical on both switches. The port-channels on the MLAG peer must be 
assigned to the same VPC ID. However, the member ports for the port-
channel may be different. The administrator must ensure that the port-
channel configuration on both the switches is in sync before enabling 
MLAG. After the MLAG interfaces are enabled, the MLAG interfaces are 
operationally disabled for a brief period while the MLAG component 
exchanges information regarding the port members that constitute the 
port-channel on each device. Once this information is populated on both 
devices, the MLAG interfaces are operationally enabled and traffic 
forwarding on MLAG interfaces is allowed. 
The secondary switch forwards all BPDUs/LACPDUs received on the port 
members of the MLAG interface to the primary switch over the peer-link. 
Events related to MLAG interface and their port members are forwarded