[c-nsp] ASR9000 SFP/XFP Input Error troubleshooting

[Curtis Piehler]

Thank you Jean but I am looking for more stats on Input Errors which is
different than Total Drops.  None of these Input Errors seems to be service
affecting so I'm wondering where they are from.

On Mon, Apr 3, 2017 at 11:02 PM, <Jean-Francois.Dube at videotron.com> wrote:

> Hi Curtis,
>
> This may require looking at the NP counters.
>
> https://supportforums.cisco.com/document/59721/asr9000xr-
> troubleshooting-packet-drops-and-understanding-np-drop-counters
>
> Basically find the Network Processor (NP) associated with the interface
> and see what is being drop there.
>
> (For the example I use NP0 but yours may be different.)
>
>
> #show controllers np ports all location 0/2/CPU0
> #show controllers np counters np0 location 0/2/CPU0
>
> #clear controller np counters np0 location 0/2/CPU0
> #clear counters TenGigE0/2/0/0
>
> #show interface TenGigE0/2/0/0
> #show drops np np0 location 0/2/CPU0
>
> Depending on HW the NP may support more than one interface some check all
> interfaces for drops.
>
> This link may help as well.
>
> http://docwiki.cisco.com/wiki/Finding_Packet_Drops_-_ASR9K
>
>
> Cheers,
>
> JF
>
> *Jean-François Dubé*
> Technicien, Opérations Réseau IP
> *Ingénierie Exploitation des Réseaux*
> *Vidéotron*
>
> "cisco-nsp" <cisco-nsp-bounces at puck.nether.net> a écrit sur 2017-04-02
> 21:21:04 :
>
> > De : Curtis Piehler <cpiehler2 at gmail.com>
> > A : Cisco Network Service Providers <cisco-nsp at puck.nether.net>,
> > Date : 2017-04-02 21:21
> > Objet : [c-nsp] ASR9000 SFP/XFP Input Error troubleshooting
> > Envoyé par : "cisco-nsp" <cisco-nsp-bounces at puck.nether.net>
> >
> > Hello all,
> >
> > I was wondering if anyone could help me out with some Input Error
> > Troubleshooting.  This mostly pertains to XFPs.
> >
> > I am using a mix of LR, SR and ER XFPs on my routers.  I notice the Input
> > Errors increment every now and again throughout the day.  It isn't
> > excessive but mostly like ones and twosies type thing.  I notice this
> more
> > on my PE routers' interface that connects to my P routers.
> >
> > There are 0 Runts 0 Giants 0 Throttles 0 Parity 0 CRC 0 Frame 0 Overrun 0
> > Ignored 0 Abort just some regular old Input Errors.  The light levels
> > measured on each end of the devices are well within the Optic Threshold.
>  I
> > don't notice any packet loss from end to end over the the direct span.
> >
> > Below is an example of a show controller stats on one of the XFPs that is
> > utilizing SR:
> >
> > Statistics for interface TenGigE0/2/0/0 (cached values):
> >
> > Ingress:
> >     Input total bytes           = 1306747860076739
> >     Input good bytes            = 1306747860076739
> >
> >     Input total packets         = 1705370671687
> >     Input 802.1Q frames         = 0
> >     Input pause frames          = 0
> >     Input pkts 64 bytes         = 247950113768
> >     Input pkts 65-127 bytes     = 235546529699
> >     Input pkts 128-255 bytes    = 356869974054
> >     Input pkts 256-511 bytes    = 48710082541
> >     Input pkts 512-1023 bytes   = 34453174463
> >     Input pkts 1024-1518 bytes  = 539598267306
> >     Input pkts 1519-Max bytes   = 242242529856
> >
> >     Input good pkts             = 1705370671687
> >     Input unicast pkts          = 1705359409225
> >     Input multicast pkts        = 11262462
> >     Input broadcast pkts        = 0
> >
> >     Input drop overrun          = 0
> >     Input drop abort            = 0
> >     Input drop invalid VLAN     = 0
> >     Input drop invalid DMAC     = 0
> >     Input drop invalid encap    = 0
> >     Input drop other            = 0
> >
> >     Input error giant           = 0
> >     Input error runt            = 0
> >     Input error jabbers         = 0
> >     Input error fragments       = 0
> >     Input error CRC             = 0
> >     Input error collisions      = 0
> >     Input error symbol          = 0
> >     Input error other           = 0
> >
> >     Input MIB giant             = 242242529856
> >     Input MIB jabber            = 0
> >     Input MIB CRC               = 0
> >
> > All of my physical interface MTUs are set for 9114.  The MIB Giants
> > increment but the Input Errors do not increment with them.
> >
> > Thanks
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