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pronin_sergey
Beginner

Cisco 1941 reloads periodically

Hello guys,

what do we have:

CISCO1941/K9

Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.2(3)T, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2012 by Cisco Systems, Inc.

Compiled Fri 23-Mar-12 15:35 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M15, RELEASE SOFTWARE (fc1)

After 2 weeks of good work this router started to reload periodically.

In syslog I get these errors:

%SYS-2-NOBLOCK: may_suspend with blocking disabled. -Process= "Ethernet Msec Timer CFM", ipl= 0, pid= 108

-Traceback= 23AEDE48z 21242E14z 23AAB038z 23AAB01Cz

%SYS-2-BLOCKHUNG: Task hung with blocking disabled, value = 0x1. -Process= "Ethernet Msec Timer CFM", ipl= 0, pid= 108

-Traceback= 23AE99F0z 21242DD4z 23AAB038z 23AAB01Cz

In reload info:

Last reload type: Normal Reload

Last reload reason: bus error at PC 0x2398B4BC, address 0x3C

What might cause that?

Features on router in use:

  • OSPF
  • NAT
  • DHCP
  • one ipip tunnel
  • VLANs

Router is directly connected to an HP switch.

No temperature threshold reached. No other serious erros in logs, except:

GigabitEthernet0/0.2: the fragment table has reached its maximum threshold 16

But this should not cause a reload, right?

2 REPLIES 2
pronin_sergey
Beginner

Looks like the thing was with IOS

c1900-universalk9-mz.SPA.152-3.T.bin

upgraded to

c1900-universalk9-mz.SPA.152-4.M1.bin

Now the problem is gone.

BTW, in 152-3.T i was unable to set

ip virtual-reassembly in max-reassemblies 256 - in sh ip virtual-reassembly it stayed 16.

While with out max-reassemblies it worked fine.

Cheers.

Dear Pronin,

It is your goodness that you replied with solution for your own question. It may help others.

Keep it up.

Regards
Thanveer
"Everybody is genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is a stupid."