It should be noted that this usually isn't recommened. Dropping an ethernet circuit directly into a switch (even if it is laywer 3) can create design issues, esecially later when you need to scale the network. One big issue that is often overlooked is many swithces do not support traffic shaping. Some support policing, but shaping can be far more efficient. There are some nortel switches that do this, but I haven't seen many in the wild. -----Original Message----- From: Chris Adams [mailto:cmadams@hiwaay.net] Sent: Friday, July 10, 2009 10:39 AM To: nanog@nanog.org Subject: Re: Point to Point Ethernet Once upon a time, Ricky Beam <jfbeam@gmail.com> said:
Ethernet is cheap because it's everywhere, and built into almost everything. (however, the likes of Cisco and Juniper still charge insane amounts for line cards, be they ethernet, T1, or OC48.) Given the choice of buying a $4k DS3 card or just plugging into an existing,
builtin ethernet port, which do you think most people will choose?
Also, if you are plugging in a lower-speed link, you can plug ethernet in a <$1000 switch and trunk it to a router, while a mux for T1/T3/OCx circuits costs a lot more. -- Chris Adams <cmadams@hiwaay.net> Systems and Network Administrator - HiWAAY Internet Services I don't speak for anybody but myself - that's enough trouble.