[c-nsp] Better way of finding out the source of process switched traffic?

Dave Temkin dave at ordinaryworld.com
Thu Jan 27 07:42:33 EST 2005


I've got an internet-facing router that's seeing a very high rate of
process switched traffic.  Nothing too crazy is configured on this router
- a little bit of NAT, a couple of route maps, BGP.  That's about it.
Aside from doing a debug ip packet and killing the router (it's passing
about 30-40mbit of traffic), are there any other options for tracking down
what's in the process queue?  Router is running 12.3.6a

FastEthernet0/0
          Throttle count          4
                   Drops         RP          5         SP          0
             SPD Flushes       Fast       3103        SSE          0
             SPD Aggress       Fast          0
            SPD Priority     Inputs   83215964      Drops          0

    Protocol  IP
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process 1803602701 4025634609 1661069368  456573125
            Cache misses          0          -          -          -
                    Fast 2713542052 1802705001 3837108389  304620460
               Auton/SSE          0          0          0          0


FastEthernet1/0 Outside
          Throttle count          0
                   Drops         RP          0         SP          0
             SPD Flushes       Fast       1796        SSE          0
             SPD Aggress       Fast          0
            SPD Priority     Inputs    6927146      Drops          0

    Protocol  IP
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process  543622379 2397426796  317919218 1743487367
            Cache misses          0          -          -          -
                    Fast 3071349692 1923264716 1211037578 2505497398
               Auton/SSE          0          0          0          0


FastEthernet2/0 Outside 2
          Throttle count          0
                   Drops         RP          0         SP          0
             SPD Flushes       Fast       1480        SSE          0
             SPD Aggress       Fast          0
            SPD Priority     Inputs   42435822      Drops          0

    Protocol  IP
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process 1056561152 1934756549 1414955036 1939153311
            Cache misses          0          -          -          -
                    Fast  819752907  318162363 1502399074 1302221329
               Auton/SSE          0          0          0          0


!
interface FastEthernet0/0.101
 encapsulation dot1Q 101
 ip address x.x.x.x x.x.x.x.x
 no ip redirects
 no ip proxy-arp
 ip nat inside
 ip policy route-map RM101
 no cdp enable
 standby 101 ip x.x.x.y
 standby 101 timers 1 3
 standby 101 priority 250
 standby 101 preempt
 standby 101 name HSRP101
!

!
interface FastEthernet1/0
 description Outside 1
 ip address x.x.x.x x.x.x.x
 ip access-group Yipes-Outside in
 ip nat outside
 load-interval 30
 duplex full
 ntp disable
 hold-queue 300 in
 hold-queue 300 out


-Dave


More information about the cisco-nsp mailing list