At 10:21 PM 6/24/2003 +0000, MADMAN wrote: >The spokes only connect via the hub if you don't have a PVC between >the spokes. It doesn't matter if your uni or bi,
You can actually buy unidirectional PVC service? What do people do with that? Curious, Zsombor > you have 2 DLCI's per >PVC, one on each end. In our frame network we using local addressing of >DLCI's, DLCI 16 could be on both ends of a PVC. Some carries use what >is called global which I think you may be refering to. The users don't >have control of the DLCI numbering if connecting to the public frame >network but can request DLCI's which we can usually accomodate. I have >no idea what a "forward" and "return" DLCI is!?! > > Dave > >annlee wrote: > > Even if it is "switched from spoke-to-spoke", at Layer 1 the spokes connect > > via the hub. And to do anything with the traffic, Layer 2 must be > > consulted -- which gives us Priscilla's DLCI switching table. And, unless > > the traffic is unidirectional, you will need DLCIs for the opposite > > direction, as well. I don't know Cisco FR that well, but in at least some > > vendors' FR implementations, the "return" DLCIs do not have to have the >same > > numbers as the "forward" ones. That actually enables you to number >according > > to a pattern which indicates connectionality. And it also makes the DLCI > > switching table twice the size that Priscilla showed. > > > > Annlee > > > > ""Larry Letterman"" wrote in message > > news:[EMAIL PROTECTED] > > > >>My opinion is that it will go to the hub site since it's a point to > >>point network.. > >>If the hub were to be a multi-point connection to the spokes, which > >>would be one network, > >>Then the traffic could be switched from spoke to spoke... > >> > >> > >>Larry Letterman > >>Cisco Systems > >> > >> > >> > >> > >>-----Original Message----- > >>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of > >>Aaron Ajello > >>Sent: Tuesday, June 24, 2003 10:06 AM > >>To: [EMAIL PROTECTED] > >>Subject: FR concept question [7:71263] > >> > >> > >>This is probably a very simple concept question, but I've asked a couple > >>people and haven't gotten a solid answer. > >> > >>If I've got two frame relay spoke sites connected point to point with a > >>hub site and a server in one spoke site copies a file to a server in the > >>other spoke site, does all the traffic pass through the hub site, or is > >>it switched within the frame cloud? > >> > >>I guess what I'm wondering is does a frame cloud act somewhat like a > >>lan, where initially packets will go through the default gateway and be > >>routed and then the following packets will be switched? > >> > >>thanks. >-- >David Madland >CCIE# 2016 >Sr. Network Engineer >Qwest Communications >612-664-3367 > >"Government can do something for the people only in proportion as it >can do something to the people." -- Thomas Jefferson Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=71306&t=71263 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
