On Thu, May 3, 2018 at 11:03 PM Erik Sundberg <esundb...@nitelusa.com> wrote:
> I have a RR Client design question...... > > > CORE1-------------------2x10G-----------------------CORE2 > | > | > | > | > | 10G Ring > | > | > | > | > | > PE1----------PE2----------PE3----------PE4----------PE5 > > > -Core1 & Core2 are RR Reflectors with full IPV4 Tables (ASR9K) > -MPLS LDP Enabled > -IGP is ISIS > -Each PE peers only with Core1 and Core2 as RR Clients with iBGP > -PE's are only receiving a default route from the Core Routers due to TCAM > size of 20K (ASR920's\ME3800's) > -The ring does not have that much traffic on it <500m, so I do not want to > use additional 10G ports on the Core's and is why I have it in a 10G U ring. > -Primary link to the cores is via the PE1 --- CORE1 Like......... For this > discussion the link between PE5 to CORE2 is set up as a backup link. > > The scenario is I have traffic between PE2 and PE3. Since the PE's are > only receiving a default route from the Cores. Traffic is label switch from > PE2 - PE1 - Core1 does a IP lookup at Ingress then label switches back to > PE1-PE2-PE3. This ends up being 5 hops and doubling the traffic on the link > to the Cores. > > My questions is how do I get traffic to go directly between the PE's > without going to the Core Routers? > > 1. Can I enable iBGP between the PE's in a full mesh to allow traffic > between the PE's without going to the core's. Or does this break the Route > Reflector model? #1 is fine and works > 2. Create a route policy on the Core's advertising routes learned from the > PE's back to all the PE's on the ring. > 3. Is this one of the down sides to U Rings? > 4. Leave it alone and move on to bigger and better things.... > > > Thanks > > Erik > > ________________________________ > > CONFIDENTIALITY NOTICE: This e-mail transmission, and any documents, files > or previous e-mail messages attached to it may contain confidential > information that is legally privileged. If you are not the intended > recipient, or a person responsible for delivering it to the intended > recipient, you are hereby notified that any disclosure, copying, > distribution or use of any of the information contained in or attached to > this transmission is STRICTLY PROHIBITED. If you have received this > transmission in error please notify the sender immediately by replying to > this e-mail. You must destroy the original transmission and its attachments > without reading or saving in any manner. Thank you. >
