I gave 2 L3 switches and I'm in a process of configuring redundancy using HSRP.
I currently have my main switch (3560G)configured with 4 VLANs, each use an IP that is the Default gateway for it's network
my secondary switch (3550) is also configured with the same VLANs and different IPs
I have dozens of vendor routers and local servers & PCs (not all of them using DHCP) and changing the D\G for all of them is not doable.
what would be the best way moving setting HSRP using 3560G's IPs as the virtual address and assigning it with new physical IPs?
also, I was thinking starting with 1 VLAN (take the one that can survive issues if something goes wrong), other then pinging both physical IPs & the virtual one, what would be the best way testing if it's working?