I've got a Cisco 2514 (two AUI ports, two high-speed serial ports). I use it mainly as a firewall (implementing NAT), and it's connected in between my 10/100 switch (my internal network) and another 10/100 switch (the DMZ) which hosts servers. The DMZ switch uplinks to my DSL modem. Currently, I'm using the two AUI ports with 10BT ethernet tranceivers. My switch is 10/100, and so is my DSL modem. I have two questions:
1) Would it make a difference in speed under any application (web surfing, file transfers between servers and workstations locally, etc.) if the data passing through the Cisco router were 100 mbps, and
2) Is it possible (or how would I) pass data through the router at 100 mbps (without buying a Cisco switch or another router). Are there 10/100 AUI tranceivers? Are there tranceivers for the serial ports?
To clarify my network setup:
(Workstations) => [10/100 Switch] => [Cisco 2514 (10mbps)] => [10/100 Switch] => (Servers) => DSL Modem