Description

We have the network architecture described with the attached schema:

[QFX5100-A]mc-ae1----HostA

[QFX5100-B]mc-ae1----HostB

[QFX5100-A]ae0----[QFX5100-B]

We would like to have a link redundancy for the traffic from QFX5100-A andQFX5100-B to the HostA and HostB. For this purpose, we implemented the MC-LAG on QFX500 (21.4R3.15) to have the redundancy . Unfortunately, we have noticed a random behavior on the Local status MC-LAG when we disable the link from QFX5100-A to HostA.

Solution

Connections are made incorrectly, since each QFX connects only to one Host, for MC-Lag connections should be as follow:

[QFX5100-A]mc-ae1----HostA

[QFX5100-B]mc-ae1----HostA

[QFX5100-A]mc-ae2----HostB

[QFX5100-B]mc-ae2----HostB

[QFX5100-A]ae0----[QFX5100-B]

Modification History

2023-10-27 : Article Created