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Webcast-Catalyst9k
New Member

IP_VFR-3-COALESCE_ERROR

Hi guys, need help, I type the logging history and this error show up.

What does this mean?

Syslog History Table:1 maximum table entries,
saving level warnings or higher
 30190 messages ignored, 0 dropped, 0 recursion drops
 1776 table entries flushed
 SNMP notifications not enabled
   entry number 1777 : IP_VFR-3-COALESCE_ERROR
    Unable to coalesce fragments arriving through GigabitEthernet0/1.50 - datagram 4012 bytes is too big. UDP packet 192.168.50.20:53 -> 50.62.117.1:2173 has ident: 1068 flags:0x40000000 and 3 fragments
    timestamp: 567816242

 

I have a 5 sub-interfaces on my router. The IP address 192.168.50.20 (VLAN 50) is my Domain Controller. Does this error has an effect on my network. Please help.

Thank you in advance.

2 REPLIES
New Member

Hi there,It may be a bug:

Hi there,

It may be a bug: CSCsr59225.

Symptom:

 

Fragmented packets may trigger the following tracebacks on IOS routers:

 

Jul 26 00:24:00.484: %SYS-2-GETBUF: Bad getbuffer, bytes= 35040 -Process= "

", ipl= 2, -Traceback= 0x80845F4C 0x8030D5D4 0x810227F0 0x81023440 0x81023DA4 0x8005E51C 0x80054C2C 0x8011B1DC 0x8011CF54 0x8036A0C4 0x800C0BD0 0x800C0BD0 0x8036A184 0x8036D2C8 0x8036CD84 0x80375E5C
router#
Jul 26 00:24:00.484: %IP_VFR-3-SYSTEM_ERROR: FastEthernet4: IP VFR System failure - Unable to coalesce fragments

 

Conditions:

 

The router is configured with "ip virtual-reassembly" and receives large fragmented segments.

 

Workaround:

 

Use the following command to configure the size of the huge buffer large enough such that these large packets can be coalesced:

 

buffers huge size

 

The size should be set such that it is larger than the number of bytes reported in the SYS-2-GETBUF message.

 

Please note that this workaround may have an impact on memory usage.

 

Please see if your IOS is one of the affected IOS.

 

New Member

Thanks Sergiu Daniluk

Thanks Sergiu Daniluk

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