[c-nsp] SUP 720 3BXL + 2 BGP Full View + MPLS VPN

[Ian Cox]

Are you placing the BGP routes into a VRF rather than the global 
table? In the global case you will end up with labels just for IGP 
routes, with the VRF case you will end up with a label per prefix.


Ian

At 11:35 PM 2/28/2008 +0300, Pavel Kuzin wrote:
>Hi!
>
>Thanks for your reply.
>
>I have just simple MPLS and BGP config too.
>
>#sh run | in mpls
>mpls ldp loop-detection
>mpls label protocol ldp
>  mpls mtu 1540
>  mpls ip
>  mpls mtu 1540
>  mpls ip
>  mpls mtu 1540
>  mpls ip
>mpls ldp router-id Loopback0 force
>
>#sh mpls interfaces
>Interface              IP            Tunnel   BGP Static Operational
>Vlan100                Yes (ldp)     No       No  No     Yes
>Vlan410                Yes (ldp)     No       No  No     Yes
>Vlan301                Yes (ldp)     No       No  No     Yes
>
>
> > hi pavel,
> >
> > i must admit, i'm not an mpls guru, but im working on it ;) whilst i
> > can't offer you any direct solution, i can say i'm a bit fascinated by
> > this because i have for example a sup720 3bxl taking 3 x full views 243k
> > routes per peer, have mpls tag switching enabled on 5 SVI's and i dont see
> > the behaviour you see.
> >
> > router#sh mpls int | i Vl Vlan2                  Yes (ldp)     No
> > Yes
> > Vlan3                  Yes (ldp)     No       Yes
> > Vlan4                  Yes (ldp)     No       Yes
> > Vlan12                 Yes (ldp)     No       Yes
> > Vlan14                 Yes (ldp)     No       Yes
> >
> >
> > router# sh ip bgp sum Neighbor        V    AS MsgRcvd MsgSent   TblVer
> > InQ OutQ Up/Down
> > State/PfxRcd
> > 61.88.xxx.xx    4  7474 19165667  424902 69092680    0    0 21w2d
> > 243009
> > 61.88.xxx.xx    4  7474 20943846  426386 69092680    0    0 5w2d
> > 243007
> > 220.157.xx.x    4  9723 12753587 15032863 69092733    0    0 2w0d
> > 243093
> >
> >
> > router#sh platform hardware cap | b L3 Forward L3 Forwarding Resources
> > FIB TCAM usage:                     Total        Used
> > %Used
> > 72 bits (IPv4, MPLS, EoM)     524288      246423
> > 47%
> > 144 bits (IP mcast, IPv6)      262144           5
> > 1%
> >
> >
> > router#sh mpls ip bind sum Total number of prefixes: 1453
> >
> >
> > Generic label bindings
> > assigned        learned prefixes      in labels     out labels 1453
> > 1446          13042
> >
> >
> > my mpls config is pretty straight forward
> >
> > mpls label range 16 256000 mpls label protocol ldp no tag-switching ip
> > propagate-ttl tag-switching tdp router-id Loopback0 force
> >
> > ... very curious !!
> >
> >
> > hardware is sup720 pfc3bxl with ios 12.2(18)SXF8
> >
> > kind regards,
> >
> > --matt
> >
> >
> >
> >
> >
>
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