MPLS

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Hi All,          Configuring a route-reflector in an MPLS core with two PEs is not a problem for me but when the RRs are two it becomes difficult.Assuming we have two PEs with two P routers in the middle serving as RR1 and RR2, in addition to their n...

Hi colleague,have a question here about MP-BGP (iBGP) updates sent to PE or RR.You know, when BGP prepares the update, put the source and destination IP which a Loopback address, then it has to lookup for the next hop to send the update. The next hop...

I am designing network to deploy MPLS L3 VPN services for 2000+ branch locations of 1 customer.Cisco 7600 series router is used as PE along with FWSM that points towards Global Routing Table (Internet Gateway).Customer is requiring the access for int...

Hi,I need your suggestions over following details.Brief Overview of network: - Our network is pure level-3 level ISP backbone network. It is comprissed of mostly Cisco GSRs, 6500 & 7600 series devices. - IGP used in network is OSPF only and all the l...

Hi all,I have a problem in MPLS route leaking. First let me describe my network.I have a network which includes 3 7609s and two 2800 series routers. Two 7609s act as PE/P and one 7609 work as PE and the 2800 series work in normal situation.(see attac...

Hi all,I have a setup of layer2 VPN (xconnect) from 7609 to 7609. The customer is connected to 7609 port directly. Now i have shifted a customer on 3750 switch port & created a sub-interface on 7609, but customer is facing some degradation in traffic...

HiI'm doing a bit of mpls study and wondered if someone could confirm, or otherwise, my understanding of the LFIB table.Local tag - The tag that this device would advertise upstream for a neighbour to use to get to a prefix ?Outgoing tag - The tag I ...

I am working with a customer who would like to utilize path isolation in their network using VRF-Lite. I am currently debating between the use of GRE tunnels vs. VLANs between 3 core switches they currently have in place today. This is going to be ov...

Hi,I have two separte Tunnelsr1---r2----r3-----r4-----r5---r6T1 :  Source R1 Destination R6T2:  One Hop Tunnel from r1---r2 Will T1 travel inside T2 ?Say if I have Backup Tunnel to protect r1---r2 or any link in between... will that protection be app...

Hi,Due to a number of reasons we have a rather unique requirement to use IPv4+labels as a means to install a BGP next-hop against which other labelled BGP routes can be resolved.  Though this sounds fairly complex I was hoping to acheive this as foll...

Folks,RFC 4105 states:"The use of IGP shortcuts MUST be precluded when TE-LSP head-end andtail-end LSRs do not reside in the same IGP area.  It MAY be usedwhen they reside in the same area.The advertisement of an inter-area TE LSP as a link into the ...