The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: VPNSC 3.0 and RT allocation for Inter-AS
>Hi, > >I have known that VPNSC 3.0 supports Inter-AS VPN configuration. I would >like to know how the software handles with RT allocation when a vrf needs >to import prefixes from other site that belongs to a different service >provider? Also, it will automatically control filter in the bgp session >with the AS? > >Thanks in advance, >Marcelo. I don't think VPNSC 3.0 is out yet. VPNSC 2.2 claims to support it, but as far as I can tell from this http://www.cisco.com/univercd/cc/td/doc/product/rtrmgmt/vpnsc/mpls/2_2/prov_gd/pgmpls12.htm#xtocid4 it doesn't really solve the problem you refer to because it requires that the the same copy of VPNSC provisions both sites (in different ASNs) so that the RTs agree. Two separate copies of VPNSC operated by different service providers wouldn't work because 1) the AS part of the RT would be different and 2) the auto-picking of the other part of the RT. The only way around this that I can see is that extra route-maps are applied to the service requests at each site to import the other ISPs RTs. This requires some external coordination. If this is wrong someone from Cisco please correct it. Ross ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml
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