My understanding is... P router isn't seen in vpvn4, unless on trace route because of ttl propagate....you can disable it and make the mpls core invisible
I recall someone (Pshem) telling me that for 6vpe the address family for vpnv6 needs to be enabled on pe's (6vpe neighbors you choose to do 6vpe with) (and route reflector if you choose to have one) Traces and pings from ce to ce I don't believe by design of mpls l3vpn's (4 or 6) are supposed to see core. Don't know much about qos, but be aware of single label situation where php causes exp bits to be lost prior to pe arrival... your case(s) of l3vpn's vpnv4/6 shouldn't apply since the have stacked labels. http://www.cisco.com/en/US/tech/tk828/technologies_q_and_a_item09186a00800a4 3f5.shtml#wp27407 Hu please check me on all this as I'm fairly new to this myself. I'm at the beginnings of my 6vpe deployment too. This community is so knowledgeable that I will look for others to confirm or deny my understandings and then grow from it. Aaron -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Xu Hu Sent: Wednesday, August 01, 2012 10:30 AM To: [email protected] Subject: [c-nsp] 6VPE deployment Issue (Core router need configure IPv6 address or not?) Hi All Experts, Let's say the topology as below: CE-1-----------PE-1-----------P---------------PE-2------------CE-2 PE-CE protocol OSPF, core running OSPF as IGP, on top have MPLS/VPN, LDP. In the IPv4 situation, when i ping from CE-1 to CE-2, will see the next-hop of P router. For the IPv6 situation, PE-1 and PE-2 running 6VPE, established the VPNv6 neighbor with each other, as we know the core router is unaware of IPv6, so by right we just need to configure the IPv6 address in PE interface which towards CE side. My question is if we don't configure the IPv6 address in the core, so how the traceroute and ping work? Also another thing is the QOS deployment, if we don't configure the IPv6 address, the DSCP value in the core will change or not by default? Or we must map the DSCP value to EXP value in the ingress router? Thanks advance for any comments, Hu Xu _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
