[j-nsp] M20 Interface throttled

[Juniper Gowex]

Hello,

We have a Juniper M20 with JUNOS 9.3R4.4 and since few we have in our 
log these entries:

    /Jun  5 14:14:00.113 2013  xxxxxx ssb PFE_NH_RESOLVE_THROTTLED:
    Next-hop resolution requests from interface XX throttled//
    //Jun  5 14:16:30.122 2013  xxxxxx ssb PFE_NH_RESOLVE_THROTTLED:
    Next-hop resolution requests from interface XX throttled/



We are trying to identify what type of traffic that originates this 
'errors' but do not really know to do.

I attached the output of "show pfe statistics ip icmp" if that were of help.


    /XXXXXXXXX> show pfe statistics ip icmp//
    //ICMP Statistics://
    //   299458814 requests//
    //     2995701 network unreachables//
    //      620154 ttl expired//
    //           0 ttl captured//
    //           0 redirects//
    //         665 mtu exceeded//
    //           0 icmp/option handoffs//
    //
    //ICMP Errors://
    //           0 unknown unreachables//
    //           0 unsupported ICMP type//
    //           0 unprocessed redirects//
    //           0 invalid ICMP type//
    //           0 invalid protocol//
    //           0 bad input interface//
    //   295783962 throttled icmps//
    //           0 runts//
    //
    //ICMP Discards://
    //         294 multicasts//
    //           0 bad source addresses//
    //           4 bad dest addresses//
    //       33190 IP fragments//
    //       26353 ICMP errors//
    /



Does anyone know how to solve this 'problem' or identify the traffic ?

Thanks in advance,