[c-nsp] Cisco 7206 NPE-G1 with ouput drops

[Thomas Braun]

Hi,

> 
> Can you get a couple snapshots of 'sh int stat' after you clear the counters.

here are a couple of snapshots:
router#   sh int gi0/2 stat
GigabitEthernet0/2
             Switch path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor         27       2980         33       2409
             Route cache      44747   19909976      39733   24265505
                   Total      44774   19912956      39766   24267914
router#   sh int gi0/2 stat
GigabitEthernet0/2
             Switch path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor         49       6330         49       3905
             Route cache      74003   33098382      65579   40024419
                   Total      74052   33104712      65628   40028324
router#   sh int gi0/2 stat
GigabitEthernet0/2
             Switch path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor         71       8158         76       6019
             Route cache     108516   49331683      96027   58436535
                   Total     108587   49339841      96103   58442554
router#   sh int gi0/2 stat
GigabitEthernet0/2
             Switch path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor         91      10030        107       8465
             Route cache     141592   64435425     125083   75629346
                   Total     141683   64445455     125190   75637811
router#   sh int gi0/2 stat
GigabitEthernet0/2
             Switch path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor        109      11516        118       9593
             Route cache     169494   77213210     149739   90585584
                   Total     169603   77224726     149857   90595177
router#   sh int gi0/2 stat
GigabitEthernet0/2
             Switch path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor        133      13657        146      11819
             Route cache     206675   94064316     182480  110083384
                   Total     206808   94077973     182626  110095203
router#   sh int gi0/2 stat
GigabitEthernet0/2
             Switch path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor        154      15930        187      14859
             Route cache     243793  111137592     214608  129055974
                   Total     243947  111153522     214795  129070833
> 
> > 
> > We  have found the command "#sh ip cef switching statistics" it shows us
> > a high drop rate under "RP PAS Features"  line
> > RP PAS Features                   107436199          0        206
> > 1 second cap:
> > RP PAS Features                   107504040          0        206
> 
> I haven't looked at this too much yet but it's some new debugging
> added in the CEF path as a result of the new feature handling.
> 
> Try and correlate these drops to the output drops and see if they
> go up about the same rate.
No, it is not the same rate, the counter for "RP PAS Feature" is  increasing a little bit faster.

router#sh ip cef switching statistics | inc RP PAS Features
RP PAS Features                        3160          0          0
router#sh ip cef switching statistics | inc RP PAS Features
RP PAS Features                        3664          0          0
router#sh ip cef switching statistics | inc RP PAS Features
RP PAS Features                        6320          0          0
router#sh ip cef switching statistics | inc RP PAS Features
RP PAS Features                        7752          0          0
router#sh ip cef switching statistics | inc RP PAS Features
RP PAS Features                        9099          0          0
router#sh ip cef switching statistics | inc RP PAS Features
RP PAS Features                       10254          0          0
router#sh ip cef switching statistics | inc RP PAS Features
RP PAS Features                       11349          0          0
router#sh ip cef switching statistics | inc RP PAS Features
RP PAS Features                       12324          0          0

router#sh int gi0/2 | inc Input
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 661
router#sh int gi0/2 | inc Input
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1046
router#sh int gi0/2 | inc Input
  Input queue: 1/75/0/0 (size/max/drops/flushes); Total output drops: 4126
router#sh int gi0/2 | inc Input
  Input queue: 1/75/0/0 (size/max/drops/flushes); Total output drops: 4680
router#sh int gi0/2 | inc Input
  Input queue: 1/75/0/0 (size/max/drops/flushes); Total output drops: 5406
router#sh int gi0/2 | inc Input
  Input queue: 1/75/0/0 (size/max/drops/flushes); Total output drops: 6175
router#sh int gi0/2 | inc Input
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 6740
router#sh int gi0/2 | inc Input
  Input queue: 0/75/1/0 (size/max/drops/flushes); Total output drops: 7376
router#sh int gi0/2 | inc Input
  Input queue: 0/75/1/0 (size/max/drops/flushes); Total output drops: 8107



thanks for your answer.

cu thomas