Few things for MPLS VPN: MPLS VPN Troubleshooting: 1. Routes are not showing up in PE VPNv4 table             1. Check for RT under VRF configuration of LOCAL ROUTER and REMOTE ROUTER             2. Check for the VRF IGP to BGP VRF address family redistribution on REMOTE ROUTER             3. Check for the NEXT-HOP-SELF configuration in IBGP or EBGP configuration of REMOTE router 4. Check the REMOTE ROUTER IP ROUTE VRF table or CE-PE routing protocol configuration on REMOTE ROUTER.             5. Check for VPNv4 session between the REMOTE and LOCAL Router                         a. check for proper neighbor configuration                         b. check for update-source if BGP is between LOOPBACK addresses                         c. Check for ebgp-multihop configuration (MPLS VPN option C)                         d. Check the activation of neighbor under BGP address-family configuration                         e. Check if you need local-as configuration option             6. Check for CE-PE configuration on both end if BGP is the CE-PE protocol As BGP use different way to advertise the routes and each one need specific component in routing or bgp table                         1. Network command                                     a. Network command only b. Network command with mask (Needs specific component in Routing table of same mask, use static route to achieve this)                         2. Aggregate command (Need component in BGP table) 3. Redistribute static/connected/IGPs (Check for prefix-list or route-map associated with that) 4. Check neighbor configuration command syntax for Prefix-list or route-map configuration                         5. Allowas-in on CE routers and AS-OVERRIDE on PE routers                         *7. no BGP Route-target filter                         2. Routes are not showing up in CE Routing table                         1. Check for the next-hop info in VPNv4 table of LOCAL ROUTER and in IP Routing table                         2. Check for redistribution of BGP routes into the CE-PE table of local PE                         3. Check for passive interface config on both PE and CE routes                         4. Check for area connectivity in OSPF and configure Virtual link if needed                         5. Check for CE-PE protocol version configuration in case of RIP                         6. Check for BGP configuration 3. Ping ISSUE                         1. Most of the issue is broken LSP                                     a. Check for IP CEF is enabled or not                                     b. Label distribution protocol mismatch LDP or TCP                                     c. Make sure label protocol is enabled globally as well as on interface                                     d. look at the LOOPBACK updates in IGP as well as label allocation for it                                                 Configure OSPF loopback with point to point network type                                                                                     or                                                 Use loopback of /32                                     e. check for end to end LSP using                                                 CEF table                                                 MPLS Forwarding Table                                                 LFIB                                                 BGP VPNv4 table with label f. In MPLS VPN option B (Here BGP next hop will do the work, you can avoid the redistribution)   and C don’t forget to redistribute the BGP into IGP to generate the label for remote AS PE's LOOPBACK's in local AS ,  same way advertise local AS PE's loopback to the remote AS. g. Check for MPLS configuration between both the AS if you are using the Option B with Multihope MP-EBGP between the  loopback interface of ASBR's of two different PE's of respective AS. 4. Desire Path for traffic:             a. next-hope-unchange (MPLS VPN option C)             b. Local Pref on local router             c. MED on remote router             d. redistribution with different metrics on differnet PEs facing to same Cutomer's CEs             e. OSPF SHAM-LINK with metrics manipulations 5. Loop prevention in MPLS VPN:             a. BGP uses SOO                         Use with route-map                         ip vrf sitemap             b. EIGRP uses SOO                         ip vrf sitemap             c. OSPF uses DOWN-BIT (LSA-3) & TAG-BIT (LSA-5 & 7) ... View more

HI Sajanpainel, can you explain little more? Provide more details on requirement. ... View more

I dont have with Cisco configuration example but for understanding you can go to: http://www.ccie24801.com/junos-technology/junos-h-vpls ... View more

Not sure what kind of devices or routers you have in your network but looks for if you have support for labeled multicast for MVPN support. That will avoid other complexity of using other control protocols (like PIM) in core. PE redundancy can be obtained by BGP attributes, CE-PE connectivity can be tunned using IGP or VRRP/HSRP... You can have mutiple RSVP TEs for various contract traffic and you can bind various kind of traffic to different RSVP Tunnels based on contract or service with your customer. RSVP-TE with link/node protection design will be of great help to achieve quicker failover. ... View more

Hi, Is it not possible to use STP with VPLS instance on PE and downstream switch to acheive multihoming? ... View more

No prob... I will wait... you can unicast me on devangnp@gmail.com if you want... thanks for your help in advance... regards, Dev ... View more

VIRENDER, Thanks for your info. How bout full SIP support from Cisco equipment perspective? Can you refer me to the link or document where I can see the prectical implementation of MGCP and SIP in SP as well as Enterprise deployment? Can you share more on Cable service provider deployment? So mostly when it comes to internal deployment then we will see more SCCP & SIP endpoint (Phone or any conference devices) but when we are talking about outside communication then H.323 and SIP will play big role, specially when you care communicating with third party voice network... regards, Dev ... View more

Hritter, I trying to understand the same thing from the first link i posted in my first post. In that Cisco doc they are talking about MPLS between PE-CE link and also saying that IP Multicast will not be supported in restriction portion of the document. So there I have big confusion. I know Multicast works in PE-CE with multi-VRF CE but there it is saying IP Multicasting will not be supported when there is MPLS running on link between PE-CE link and CE is multi-vrf interface running VRF on interface facing to PE. Thanks, Devang ... View more

Amit, According to me adding MPLS between PE-CE link with CE acting as Multi-VRF CE (PE facing interface is also in VRF) will not support the Multicast... then you will have to add full mesh of GRE between required sites to support the multicast... even i am also looking for what are the advantages of running LDP/BGP on PE-CE link... if there is a case for CSC then its fine to have MPLS between PE-CE link but again MultiVRF CE with PE facing VRF interface will have issue with Multicast scalability... waiting for an replies from different engineers to get clear view of it... thanks, Devang ... View more