Caveats for Enabling Mlag, Consistency of Mlag Peers

2Caveats for Enabling MLAG

There are a few limitations in implementing MLAGs:

∙Two identical switch models are required to create MLAG peers. This means an N2048 can only be peered with another N2048, an N3024 with another N3024, and so on.

∙Peer devices must use the same expansion module type if ports from the expansion module are to be part of the MLAG interface.

∙Neither of the two switches used as MLAG peers may be stacked with other switches.

∙MLAG status using the show vpc brief command is only run from the primary MLAG peer when both the primary and secondary peer information is required.

See the switch User Guide for additional information.

Note: Run the show vpc brief command only from the Primary MLAG peer. This provides information on both peer switches.

2.1Consistency of MLAG Peers

As mentioned in the section above, the two switches to be used as MLAG peers must be identical models, as well as any expansion module that is used in the MLAG peer-link setup. There are also six areas in the software configuration that must be given special attention to ensure they contain identical information prior to enabling the MLAG. These areas are reflected in Figure 2.

MLAG peer

Link Aggregation

Spanning Tree

MLAG Port-channels

Interfaces

VLANs

Firmware

peer	MLAG peer
link

=Link Aggregation

=
	Spanning Tree

=MLAG Port-channels

=
	Interfaces
=	VLANs
=	Firmware

Figure 2 Consistent MLAG peer configurations

6	Using MLAG in Dell Networks