[j-nsp] Policed discards

[Nilesh Khambal]

Policed discards will be dropped in the pfe in the input ASIC. Monitor  
traffic or tap won't work.

Thanks,
Nilesh.




On Feb 9, 2009, at 10:28 PM, "Sean Clarke" <sean at clarke-3.demon.nl>  
wrote:

> Hi Samit
>
> Still sounds like a Layer 2 protocol thing, generally CDP or Spanning
> Tree BPDU's .. probably nothing to worry about, if you can get a  
> sniffer
> on the cisco port it could tell you what it's sending out.
>
> Not sure a "monitor traffic interface ge-x/y/z" will help as the  
> Juniper
> probably discards it before it hits the RE (if it's supposed to)
>
> There are ways to possibly see it on the Juniper but it takes a bit of
> work, as you need to reset the interface into ccc or something similar
> and use tap interfaces.
> Not good on a production and disruptive to the customer, so maybe you
> don't want to go down that path
>
> cheers
> Sean
>
>
> On 2/10/09 7:05 AM, Samit wrote:
> > Hi Nilesh/Jeff
> >
> > My Cisco config
> >
> > spanning-tree portfast bpdufilter default
> >
> > interface GigabitEthernet0/1
> >   description To Juniper ge-0/0/0 PE-1GE-SX-B
> >   port-type nni
> >   switchport access vlan 2
> >   no keepalive
> >   media-type sfp
> >   speed nonegotiate
> >   no cdp enable
> >   spanning-tree portfast
> > end
> >
> > interface GigabitEthernet0/5
> >   description To Juniper ge-1/3/0 inbuilt
> >   port-type nni
> >   switchport access vlan 3
> >   media-type sfp
> >   speed nonegotiate
> >   no cdp enable
> >   no keepalive
> >   spanning-tree portfast
> > end
> >
> > The Police discards counter now increases by 1 in every 30-40secs
> > interval in ge-0/0/0 but I still see it. But I don't think i  
> really need
> > to worry much, do I? because I don't see any packet loss.
> >
> > Regards,
> > Samit
> >
> > Nilesh Khambal wrote:
> >
> >> Please disable cdp and keepalives on Cisco port connected to this  
> M7i.
> >> Also, disable spanning tree on this port by configuring it as an  
> access
> >> port.
> >>
> >> Thanks,
> >> Nilesh.
> >>
> >> Samit wrote:
> >>
> >>> Hi, I just installed my first juniper M7i in the production  
> couple of
> >>> hour back and after resolving few routing issue so far it is  
> running
> >>> smoothly. I noticed that my PE-1GE-SX-B interface is showing only
> >>> "Policed discards", the counter which increases by 1 in every  
> 1-2 secs
> >>> but the inbuilt GE is showing no errors. As I am not running any
> >>> qos/policing in the interface I was wondering what does it  
> means..and
> >>> how to fix this error?  the router's both interface is connected  
> with a
> >>> Cisco 3400ME in different Vlan.
> >>>
> >>> interfaces {
> >>>      ge-0/0/0 {
> >>>          description " Cisco3400-ME Gi0/1 Vlan2";
> >>>          unit 0 {
> >>>              family inet {
> >>>                  address 192.168.0.1/28;
> >>>              }
> >>>          }
> >>>      }
> >>>
> >>>                                                             
> Delay: 1/0/1
> >>> Interface: ge-0/0/0, Enabled, Link is Up
> >>> Encapsulation: Ethernet, Speed: 1000mbps
> >>> Traffic statistics:                                            
> Current
> >>> delta
> >>>    Input bytes:                3589144576 (34951312 bps)
> >>> [26149611]
> >>>    Output bytes:               4117970233 (36219936 bps)
> >>> [27659648]
> >>>    Input packets:                12654493 (15073 pps)
> >>> [90668]
> >>>    Output packets:               13058310 (15834 pps)
> >>> [94510]
> >>> Error statistics:
> >>>    Input errors:
> >>> 0                                [0]
> >>>    Input drops:
> >>> 0                                [0]
> >>>    Input framing errors:
> >>> 0                                [0]
> >>>    Policed discards:
> >>> 558                                [4]
> >>>    L3 incompletes:
> >>> 0                                [0]
> >>>    L2 channel errors:
> >>> 0                                [0]
> >>>    L2 mismatch timeouts:
> >>> 0                                [0]
> >>>    Carrier transitions:                 0  Output
> >>> errors:                [0]
> >>>
> >>>
> >>>
> >>> Regards,
> >>> Samit
> >>>
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> >>>
> >>>
> >>
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