nanog mailing list archives

Re: Do ATM-based Exchange Points make sense anymore?


From: Alex Rubenstein <alex () nac net>
Date: Thu, 8 Aug 2002 12:37:30 -0400 (Eastern Daylight Time)



I have no first-hand experience SRP/DPT.

However, the following questions exist?

Does it scale well to 10's, or perhaps hundreds of nodes?

And, is there the possibility of one member hurting the entire ring?




On Thu, 8 Aug 2002, michael.dillon () radianz com wrote:


Given that your analysis could be used to make decisions about exchange
point architecture, I wonder if you would consider adding RPR IEEE 802.17
into the mix?
While I don't know of anyone using RPR in an exchange point, there
certainly are products on the market and not just Cisco's SRP/DPT. Within
Ebone we were using SRP/DPT rings quite successfully in our PoP
architecture, i.e. it does work in the real world. I know that the
marketing side of RPR is promoting it as a metro area solution, but it
works just as well in a PoP. Given that you are comparing a PoP oriented
technology (Ethernet) with a metro area technology (ATM), I think it makes
sense to take a serious look at a technology that covers both.

--Michael Dillon


-- Alex Rubenstein, AR97, K2AHR, alex () nac net, latency, Al Reuben --
--    Net Access Corporation, 800-NET-ME-36, http://www.nac.net   --



Current thread: