Network evolution: adding redundancy paths inside multi-WAN CARP HA and a 3-layer network
-
Hello everybody,
I want to upgrade my network that is currently a multi-WAN CARP HA built around 2 8300-MAX appliances :
As you can see, there are 2 big problems on that network :- The Zyxel switches placed upstream of appliances are distributing one fiber each. I want to use them to build a MSTP network (I already assigned a VLAN for each fiber) ; I don't know how to do that.
- Enterasys and FS switches placed downstream of appliances are SPOF (especially Enterasys that is the heart of the entire LAN, both buildings are off if there's a problem on it).
This is my vision of the future network:
In this vision, I need help:- How to connect both appliances and both new LAN Zyxels and make sure CARP is still working properly ?
- Are the upstream "old" Zyxels correctly connected between them, appliances and ISP routers ? Do you think CARP will still work properly too in that side of the network ?
- Is the 3-layer network correct ?
Thanks in advance for your help !
Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.