[rbak-nsp] MPLS issue in SE800

Sridhar sridhar at redback.com
Wed Sep 20 10:20:03 EDT 2006


hi Umar,
what versions of SEOS are you running on the two boxes?

besides the ping of rsvp lsp LONDON-PARIS which fails, is there some
other problem that you see?

thanks
sridhar


On 9/20/06, Umar Ahmed <Umar.Ahmed at vanco.co.uk> wrote:
>
>
> Hello all,
>
> I have the following setup in terms of LSP's:
>
> London - Paris
>
> Paris - London
>
> Very basic so that I can pass traffic across my 2547 network. There are
> other LSP's that are setup in the same way ingress/egress of Paris and
> London which work fine.
>
> The problem is that I can ping from Paris to London whereby London to Paris
> does not want to know (see pings below):
>
> [local]#ping mpls rsvp PARIS-LONDON
> Sending 5 100-byte MPLS echos to PARIS-LONDON, source x.x.x.3,
>     timeout is 1 second, send interval is 0 msec:
> !!!!!
>
> [local]#ping mpls rsvp LONDON-PARIS
> Sending 5 100-byte MPLS echos to LONDON-PARIS, source x.x.x.2,
>     timeout is 1 second, send interval is 0 msec:
> .....
>
> I have triple checked the config which is in line with other LSP's that
> work, however this is stumping me.
>
> The IGP is fine - OSPF can see the loopbacks, and MBGP is looking good. The
> VPN config is fine with the RT and RD looking good.
>
> This is the viewpoint from London for the LSP's ingress and egress
>
>
>                 --- RSVP LSP London-Paris (ID: 3) ---
>
> Ingress             : x.x.x.2     Endpoint            : x.x.x.3
> Origin              : Ingress         LSP State           : Up
> Extended Tunnel ID  : x.x.x.2     LSP ID              : 0
> Trafffic-Eng        : default         State Transitions   : 1
> Downstream Nhop     : x.x.x.3     Downstream Intf     : x.x.x.29
> Downstream Nbr      : x.x.x.30    Downstream Label    : 3
> Setup Priority      : 0               Holding Priority    : 0
> Last Downstream Tx  : 18              Last Downstream Rx  : 11
> Next Timer in (sec) : 6               Lifetime (sec)      : 157
> Time to Die (sec)   : 145             B/W (Bytes/sec)     : 0
> LSP cct             : 255/3:1023:63/0/1/1
> IGP Shortcut        : Disabled
> Use Explicit Route  : No              Record Route        : Yes
> Recorded Route (hops: 1):
>         x.x.x.3/32
>
>
>
>                 --- RSVP LSP Paris-London (ID: 3) ---
>
> Ingress             : x.x.x.3     Endpoint            : x.x.x.2
> Origin              : Egress          LSP State           : Up
> Extended Tunnel ID  : x.x.x.3     LSP ID              : 0
> Trafffic-Eng        : None            State Transitions   : 0
> Setup Priority      : 0               Holding Priority    : 0
> Last Upstream Tx    : 6               Last Upstream Rx    : 8
> Upstream Intf       : x.x.x.29    Upstream Nhop       : x.x.x.30
> Upstream Nbr        : x.x.x.30    Upstream Label      : 3
> Next Timer in (sec) : 31              Lifetime (sec)      : 157
> Time to Die (sec)   : 148             B/W (Bytes/sec)     : 0
> LSP cct             : Cct invalid
>
>
>
> Paris Point of View:
>
>                 --- RSVP LSP London-Paris (ID: 3) ---
>
> Ingress             : x.x.x.2     Endpoint            : x.x.x.3
> Origin              : Egress          LSP State           : Up
> Extended Tunnel ID  : x.x.x.2     LSP ID              : 0
> Trafffic-Eng        : None            State Transitions   : 1
> Setup Priority      : 0               Holding Priority    : 0
> Last Upstream Tx    : 7               Last Upstream Rx    : 21
> Upstream Intf       : x.x.x.30    Upstream Nhop       : x.x.x.29
> Upstream Intf Name  : mplstolonix                         :
> Upstream Nbr        : x.x.x.29    Upstream Label      : 3
> Next Timer in (sec) : 36              Lifetime (sec)      : 157
> Time to Die (sec)   : 135             B/W (Bytes/sec)     : 0
> LSP cct             : Cct invalid
>
>
>
>                 --- RSVP LSP Paris-London (ID: 3) ---
>
> Ingress             : x.x.x.3     Endpoint            : x.x.x.2
> Origin              : Ingress         LSP State           : Up
> Extended Tunnel ID  : x.x.x.3     LSP ID              : 0
> Trafffic-Eng        : default         State Transitions   : 9
> Downstream Nhop     : x.x.x.2     Downstream Intf     : x.x.x.30
> Downstream Intf Name: mplstolonix                         :
> Downstream Nbr      : x.x.x.29    Downstream Label    : 3
> Setup Priority      : 0               Holding Priority    : 0
> Last Downstream Tx  : 7               Last Downstream Rx  : 39
> Next Timer in (sec) : 14              Lifetime (sec)      : 157
> Time to Die (sec)   : 118             B/W (Bytes/sec)     : 0
> LSP cct             : 255/3:1023:63/0/1/1
> IGP Shortcut        : Disabled
> Session Attr        : Local-Protect May-Reroute Record-Label
>
> Path Error messages :
> Time: 02:27:18, Node Address: x.x.x.158, Code: No Sender Info for Resv,
>       Flags: 0x0, Value: 0x0
> Time: 02:27:43, Node Address: x.x.x.29, Code: No Sender Info for Resv,
>       Flags: 0x0, Value: 0x0, Repeat cnt: 2
> Time: 02:29:01, Node Address: x.x.x.158, Code: No Sender Info for Resv,
>       Flags: 0x0, Value: 0x0
>
> Use Explicit Route  : No              Record Route        : Yes
> Recorded Route (hops: 1):
>         x.x.x.29/32
>
> There seems to be limited commands for troubleshooting the LSP so if anyone
> knows what else to try - please let me know. I see some path error messages
> but dont know how to decipher them - any ideas ????
>
>
> Kind regards,
>
>
>
> Umar Ahmed
>
>
>
> IST Changes Manager
>
>
>
> Vanco UK Limited, a Vanco plc Group Company
>
> John Busch House, 277 London Road, Isleworth, TW7 5AX, UK
>
> T +44 (0) 20 8636 1700
>
> F +44 (0) 20 8636 1701
>
> W <http://www.vanco.co.uk>
>
> DDI +44 (0) 20 8636 2957
>
> M +44 (0) 7818 242 138
>
> E umar.ahmed at vanco.co.uk
>
>
>
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