I have been building a config for a 6513 to replacing an aging Avaya 882 we have as our core campus router. Been debating on best why to change the switch.
When I installed the 882 years ago I attach the 882 to the switch it was replacing via a trunk. I had shut off routing on the older switch and enabled it in the 882. This allowed uptime while I was able to move each buildings fiber link over to the new switch. The fiber patch cables had to be changed as the ends were different. We have over 18 buildings so this approached gave us less downtown.
I'm faced with same situation with the 882 to 6513 conversion. The fiber patch cables need replaced again. Would my old approach work again here? Our traffic, especially in the summer would like saturate the 1G link between the two switches.
I'm going over all the things that I need to make sure are configuring correctly on the 6513. All the subnets, vlan, and interfacing are definded. I have attached test 3750 switch stacks and test routing between subnets. All seems ok. Things that I have or need to go over are.
Span Tree settings. Using rapid.
Multicast settings. 3750s edge stacks appear the have this (IGMP) feature enable per device and vlans.
A few buildings use etherchannels.
Any advice would be appreciated.