I have a 3640 that I want to use for a new site. It has two Ethernet ports that I would like to use for load balancing and redundancy. The Lan will have one subnet since it is a small office. I've tried to put both interfaces in the same subnet but I am getting a subnet overlap message when I try.
If the router is connected to a switch (not a hub), and the interfaces support it, you can also configure etherchannel between the router and the switch. This is likely to be more more efficient than IRB (although IRB will work). Configure etherchannel on the 3640 as per... interface Port-Channel N ip address a.b.c.d m.a.s.k ! interface fastethernet1/0 no ip address channel-group N ! interface fastethernet1/1 no ip address channel-group N Configuring the switch depends on whether the switch runs CatOS or IOS. For CatOS... set port channel 3/1,3/2 on For IOS-based switches it's similar to the router.
The router is connected to a switch, a 3524XL. I found references for port-channeling on CCO but the router does not support it from what I can tell or I'm not at the correct IOS because I don't have the command when I'm in config mode. The router is currently at 12.2(10b) IP Plus. Also, the interfaces are Ethernet (10M) only.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...