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New Member

PIX 7.2 (1) upgrade - dispacth unit


I have recently upgraded one of our pixes from 6.3 (4) to 7.2(1) the unit is a 515UR with 128MB memory.

However since I have upgraded I have notices that the CPU usage has ramped up contatntly around 25% and sometimes around 40% for a consiserable amount of time.

I have been looking at 'sh proc' and 'sh proc cpu-hog' and I can see that 'dispatch unit' takes up most of the cpu.

Is it possible someone can advise me what this is? Also would you advise a bigger unit?



Process: Dispatch Unit, NUMHOG: 1639, MAXHOG: 508, LASTHOG: 510

LASTHOG At: 15:01:10 UTC Oct 23 2006

PC: 2f1dce

Traceback: 2f1b30 2f568c 2ee167 745cba 73b465 c2d5e5 c2db14

c2df24 73b20b 745fbf 74802d 626e15 21852a 11302f

Cisco Employee

Re: PIX 7.2 (1) upgrade - dispacth unit

you're on the wrong forum.

We don't cover pix or security.

This one is for application loadbalancing/caching.


New Member

Re: PIX 7.2 (1) upgrade - dispacth unit


even though it's on the wrong forum: you probably have hit a bug. I have the same issue as you with 7.2(1.9) and ASA5520. In Bug Navigator you can find tons of open bugs.

Hope this helps



CSCsg38186 ASA-5520 7.2.1(1.19) crash dispatch unit

CSCsg49825 Traceback in Thread Dispatch Unit (Old pc 0x00218bc7 ebp 0x01853738)

CSCsg42272 Traceback in Dispatch Unit, assert t->stack[0] == STKINIT failed ?

CSCsg40678 Active PIX in failover pair crashed at Dispatch Unit

CSCsg06300 PIX crash fequently with Thread Name: Dispatch Unit

CSCse61850 Reload with Thread Name: Dispatch Unit; eip==q931_utl:q931_parse+154

CSCsg15416 Traceback in Dispatch Unit - w/ vpn-filter applied to IPSec connection

CSCsf32050 ASA reloads in Dispatch Unit thread

CSCsg08725 Crash in Dispatch Unit while timing out TCP keepalive message

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