[j-nsp] PFE Drops

[Paul Stewart]

Can anyone point me to documentation on the specifics of the following
output?  I'm trying to understand specifically "Software input medium drops"
I believe at this pointŠ.

What's happening is the device becomes non-pingable (ICMP) for a few hours
about once a week and I'm trying to figure out why.  It only becomes
non-pingable from our monitoring system which as you can imagine is causing
us some grief ;)  The monitoring system relies on ping to test reachability.
It's important to note that during times that the device (EX or SRX
specifically) is not pingable, we can continue to collect SNMP data with no
issues.

Thanks,

Paul


Packet Forwarding Engine traffic statistics:

    Input  packets:             41503426                   35 pps

    Output packets:             38415378                   33 pps

Packet Forwarding Engine local traffic statistics:

    Local packets input                 :              2039823

    Local packets output                :               230307

    Software input control plane drops  :                    0

    Software input high drops           :                    0

    Software input medium drops         :                  843

    Software input low drops            :                    0

    Software output drops               :                    0

    Hardware input drops                :                    0

Packet Forwarding Engine local protocol statistics:

    HDLC keepalives            :                    0

    ATM OAM                    :                    0

    Frame Relay LMI            :                    0

    PPP LCP/NCP                :                    0

    OSPF hello                 :                    0

    OSPF3 hello                :                    0

    RSVP hello                 :                    0

    LDP hello                  :                    0

    BFD                        :                    0

    IS-IS IIH                  :                    0

    LACP                       :                    0

    ARP                        :              1922846

    ETHER OAM                  :                    0

    Unknown                    :                    0

Packet Forwarding Engine hardware discard statistics:

    Timeout                    :                    0

    Truncated key              :                    0

    Bits to test               :                    0

    Data error                 :                    0

    Stack underflow            :                    0

    Stack overflow             :                    0

    Normal discard             :              1503184

    Extended discard           :                  204

    Invalid interface          :                    0

    Info cell drops            :                    0

    Fabric drops               :                    0

Packet Forwarding Engine Input IPv4 Header Checksum Error and Output MTU
Error statistics:

    Input Checksum             :                    0

    Output MTU                 :                    0