White Papers

60 Using MLAG in Dell Networking N-Series Switches | version 1.5
Local Members Status
----------------- ------
Gi1/0/48 Up
Peer Members Status
---------------- ------
Gi1/0/12 Up
Local Members Status
----------------- ------
Gi1/0/12 Up
Peer Members Status
---------------- ------
Gi1/0/48 Up
show vpc brief command output for N3048 MLAG peers in Single-tier topology
Results of the command should be the same as shown above. All member ports must show UP, and the VPC
interface state must show Active. When partner switches are correctly configured with MLAGs and connected
to the MLAG Peers, the Number of VPCs operational in the
show vpc brief command will show 1 or more. A
value of 0 indicates improperly configured partner switches.
The
show interface port-channel is another helpful command to verify whether the configured LAG ports are
up and running. This command can be run on both the primary and secondary peers on a single layer MLAG
topology. If correctly configured, the port(s) in the LAG are listed with an Active status. If there are any
inactive ports, check for cabling or configuration issues.
Single-tier MLAG peer
show interface port-channel 40
Channel Ports Ch-Type Hash Type Min-links Local Prf
------- ----------------------------- -------- --------- --------- ----
Po40 Active: Gi1/0/48 Dynamic 7 1 Disabled
Hash Algorithm Type
1 - Source MAC, VLAN, EtherType, source module and port Id
2 - Destination MAC, VLAN, EtherType, source module and port Id
3 - Source IP and source TCP/UDP port
4 - Destination IP and destination TCP/UDP port
5 - Source/Destination MAC, VLAN, EtherType, source MODID/port
6 - Source/Destination IP and source/destination TCP/UDP port
7 - Enhanced hashing mode
show interface port-channel 40 command output for N3048 in Single-tier
topology
A.2 Two-Tier Example
Run the show vpc brief command on either MLAG peer to display information for both peers.
Notes:
1. Interfaces used to connect each peer to the partner switch LAG are not required 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. The peers can use different
ports.
2. The partner switch configurations must include LAGs and connections to the MLAG Peers, or the
“Number of VPCs operational” in the show vpc brief command will show 0.