Hi there... I don't consider myself a Cisco expert or anything, but I can get around. I'll give an overview of my current setup... I currently have a Cisco 2621 powering a network at our co-location facility... It's a simple setup and is working well. The colo provides a redundant HSRP uplink, so I have their two uplinks going into a Dell switch. From that Dell switch I have a uplink into FastEthernet0/0 on the 2621, configured with my routing network, and then FastEthernet0/1 gets an address from my block of routable IP. FastEthernet0/1 then plugs into another Dell switch where I have all my servers connected. The servers get public routable IP addresses and use the address on FastEthernet0/1 as their default gateway. This works well...
Colo Uplinks (2 cables) --> Dell Switch A --> Cisco 2621 FE 0/0
Cisco 2621 FE 0/1 --> Dell Switch B --> Servers
It's time to upgrade off the 2621, so I aquired a Cisco 2811 which has two FE interfaces, as well as a modular HWIC-4ESW switch. My question is, can I get rid of the Dell Switch A in the setup above and just use the internal switch on the 2811 to accomplish the same thing? And I if I did this, would my two uplinks from the colo plug into ports 1 and 2 of that HWIC, and then port 3 would physically connect into FE 0/0? Or can I logically do that via configuration in the Cisco? I'm not sure how all this works and haven't received the new router yet, so I thought I'd get a head start and reach out to the experts.
My second question is unrelated, but each port on the HWIC switch cannot be configured as a network interface right? I'm pretty sure they can't as they aren't considered network interfaces but just thought I'd ask.
Thanks for any direction, I always get pointed to the right place here.
The table that Reza does suggest that the 2811 does not have routed ports and that is most definitely a problem with the table and not accurate information about the router.
From what I understand of Matt's situation I believe that he could use two of the switch ports to replace Dell switch A. Two of the switch ports would connect to the colo uplink. You would probably create a separate VLAN for them and configure a VLAN interface which would have the IP address and would establish connectivity to the colo upstream. You would not need FastEth0/0 for this. So you would have a routed interface and two additional switch ports available for some future use.
In case it is not clear let me address Matt's question about configuring the HWIC ports as network interfaces. The HWIC ports are switch ports and operate at layer 2. As such you can not configure them as layer 3 network ports. But you can configure VLAN interfaces for the HWIC and the VLAN interface is a layer 3 interface and provides the network functionality. As with most switches you could have all the switch ports in a single VLAN but I believe that in your case it would be better to have the 2 uplink ports in a separate VLAN with their own VLAN interface.