[c-nsp] IOS-XR and interface discards (input)

[Alexandr Gurbo]

Hello,

Check you fiber connection.


On Thu, 14 May 2015 22:04:35 +0300
Hank Nussbacher <hank at efes.iucc.ac.il> wrote:

> We have an ASR 9010 running IOS-XR v 5.1.3.  We see a high level of input 
> discards:
> 
> TenGigE0/1/1/7 is up, line protocol is up
>    Interface state transitions: 25
>    Layer 1 Transport Mode is WAN
>    MTU 9028 bytes, BW 10000000 Kbit (Max: 10000000 Kbit)
>       reliability 255/255, txload 13/255, rxload 99/255
>    Encapsulation ARPA,
>    Full-duplex, 10000Mb/s, link type is force-up
>    output flow control is on, input flow control is on
>    Carrier delay (up) is 100 msec, Carrier delay (down) is 4000 msec
>    loopback not set,
>    ARP type ARPA, ARP timeout 04:00:00
>    Last input 00:00:00, output 00:00:00
>    Last clearing of "show interface" counters 1d13h
>    30 second input rate 3886868000 bits/sec, 392410 packets/sec
>    30 second output rate 527057000 bits/sec, 154557 packets/sec
>       55223825999 packets input, 63505398737673 bytes, 116320028 total 
> input drops
>       0 drops for unrecognized upper-level protocol
>       Received 111 broadcast packets, 1499584 multicast packets
>                0 runts, 0 giants, 0 throttles, 0 parity
>       10 input errors, 5 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
> 
> The config on the interface looks like this:
> 
> interface TenGigE0/1/1/7
>   mtu 9028
>   ipv4 unreachables disable
>   ipv6 nd dad attempts 5
>   ipv6 address 2001:798:28:20aa::6/126
>   monitor-session No1 ethernet
>   flow-control bidirectional
>   carrier-delay up 100 down 4000
>   load-interval 30
>   flow ipv4 monitor fmp-nfsen sampler fsm-nfsen ingress
>   transport-mode wan
>   ipv4 access-group catch13-ing ingress
> !
> 
> Any clue would be helpful for us to begin to debug this issue.
> 
> Thanks,
> Hank
> 
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-- 
Alexandr Gurbo