Linux and high performance routers ?
As I am a computer networking student (Feb. 2011 = graduation month), I have been learning a lot about the subject. However, one thing puzzles me: all the networking hardware (i.e. routers, switches) I've learned about so far are made by Cisco. Most of those devices use the Cisco IOS.
Does Linux have a presence in the (router/switch) market besides the home networking devices that can be flashed with a Nix OS? I.e. are there any high performance (distribution/core) switches that have Linux as their OS?
Considering open standards such as OSPF, it seems odd to me that there isn't any Linux router's or switches.