Lucent is the only company I know of capable of routing OC-48 IP at line speed. They have imminent plans to route OC-192 IP at line speed, and I expect them to release it soon. Some can route gigabit ethernet, but routing OC-48 and up is where the men are separated from the boys.
Cisco's performance OC-48 card (not the old time-to-market card) for the GSR's does line rate ip quite beautifully.
Lucent has one other competitor in the terabit routing space, and that is Juniper.
Juniper's box is *not* a terabit router. It has 40 gbps of bandwidth. There is no such thing as a terabit router yet. Nexabit's OC192 is not real OC192. It's basically Nexabit's OC48 engine (which sucks) combined with the Lucent mux/optics package. Nothing special, and not too surprising. Just lets you run the 4*OC48 straight into the router rather than using an external optics package. The wait for true OC192c continues.
Lucent just recently finished their purchase of Nexabit, a private datacomm company. Nexabit currently is shipping the NX64000, a true 6.4 terabit IP router mentioned at the bottom of the article.
I don't know where you got the 6.4Tb number comes from. Let's see...we have 16 slots per box. Put an OC192 in each slot. That's 10 gigs per slot. Hrmm... that's 160 gigs. Even if you could put *10* OC192s in a slot (which you can't), that's only 1.6Tb/s. Yeah, it's a no-brainer all right. Just give me a Cisco 12012. At least they're honest and call their box a gigabit router.
