I have two trunked L3 switches forming a network backbone. One is an old HP2848 and the other is a new Juniper EX3300. Currently only the EX3300 connects to our WAN Router and is trunked via 4 LACP links to the HP2848. Multiple access switches carrying 6 VLANs connect to both switches (roughly equal traffic loads).
Currently the EX3300 handles all interVLAN routing for all VLANs. My question is:
What is the best way to handle InterVLAN routing? Should I enable SVIs on the HP2848 but keep the physical configuration as is? Should I setup routing on the HP2848 for 1 or 2 of the VLANs to account for its smaller CPU and use one of the trunk link cables to connect the HP2848 directly to the router? This would remove the single point of failure of the EX3300-Router link and I could maybe configure VRRP at this point?
There is, for most of the time, very little local traffic with the majority of all communication being towards the WAN router and on to the internet. The EX3300 and the Router are in one cupboard, the HP2848 is in another. I am not in a position to run extra cables. Traffic loads are not at a level where any CPUs are overloaded currently but traffic will increase for a period of time in the future.
Your advice is appreciated