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

[Pavel Kuzin]

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
>
>
>
>
>