without knowing the exact topology and protocols involved I can just make assumptions.
If you run LACP over the LAG and the „active" link fails, the Backup Link needs to „converge" so I would expect 1-2 ping losses from Experience.
Usually a VC (especially a 2-Member VC) is really really fast.
You will most likely use 1 or 2 pings when the Backup switches to the Master state. In a 2-Member-VC you already have both devices running on the role routing-engine so failover shouldn't be a problem :) But I usually test this in a quick PoC in order to know that my topology is running the way I want it to be running.
That being said the EX2300 has a weaker CPU than the 4300 so it might be possible to see a 3-4 ping delay if the switch also has a heavy load - but again - I can only assume than as I don't know your topology.
Juniper Networks Ambassador | JNCIE-SEC #374
Blog: jncie.eu | Twitter: @chsjuniper | YT-Channel: netchron
Sent: 01-27-2022 03:20
From: Anonymous User
Subject: EX series failover times
This message was posted by a user wishing to remain anonymous
I am looking to deploy a number of switches and switch stacks(VC) within our network and would like to try and find out what the expected failover times and failover options are for these switches:
We are using two EX4600s in VC to aggregate a mix of 2300/4300/4600s as single switches or in stacks of two, all switches will be running Layer 2 only apart from management/QoS.
VC links will be either 10g or 1g ports, uplink ports from access to aggregation will be 2x 10g links in a LAG, I am looking for information such as:
- If one port in the LAG fails for a single switch or VC, how much downtime if any is expected
- If one switch in a VC fails, how much downtime is expected before the second switch takes over
And what methods are available to reduce failover time.
Thanks in advance,