There is a cable DOCSIS WIC (might be a HWIC I can't remember) or you can just use your current cable modem and plug it into one of the fast ethernet ports, you may need to buy a module with an aditional fast ethernet port.
In theory, as traffic is going both directions on the same physical interface.
In practice, with a 100 mbits/s FastEthernet trunk and a cable modem as the WAN link, you won't see any difference. Typical download from a cable modem is under 10 mbits/s and upload significantly less. This limits the routed traffic to something around 10% of wire speed. If you were pushing full duplex near wire speed, it would be a concern, but not with a cable modem feed.
LAN traffic is switched on the 2950 and doesn't touch the router, so no difference.
It consumes one port on the switch for the cable WAN feed, that's the only real penalty in this scenario.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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