The objective of this article is to highlight design consideration for NIC Teaming between Juniper QFX 5100 (Virtual Chassis -VC) and VMWare ESXI host.
Reference topology is as under:-
We have 2 x Juniper QFX 5100 48S switches which are deployed as VC in order to provide connectivity to compute machines. All compute machines are running VMWare ESXI Hyper-visor. Link Aggregation Group (LAG or Active/ Active NIC Teaming) is required between compute machines and QFX 5100 VC.
Hence,the requirement is to configure LAG (Active/ Active NIC Teaming) between compute machines and network switch for optimal link utilization in addition to fault tolerance if in case one physical link goes down between network switch and compute machine.
In order to achieve the required results one’s needs to understand default load balancing mechanism over LAG member interfaces in Juniper devices and same load balancing mechanism must be configured on VMware ESXI for NIC Teaming.
Hi Kashif, great post.
To clarify, does this work on an 'old fashioned' vSwitch (as opposed to a dvSwitch) - as that doesn't support LACP? Can you do the same LAG config, sans LACP and just have a 'static LAG'?
Thanks (sorry this was 2 years late - but I think future Googlers might appreciate it too!)