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New Member

3750x Stack is repeatedly showing error " %ADJ-3-RESOLVE_REQ : Adj resolve request: Failed to resolve <IP Address> <vlan ID>..

Good Morning,

I have a 3750x stack running  15.0(2)SE6.

Today I started seeing some weird problems in the logs

" %ADJ-3-RESOLVE_REQ : Adj resolve request: Failed to resolve <IP Address> <vlan ID>..

To my knowledge no changes have been made except updating the NTP and Timezone settings of the switch.

The problems is that before I rebooted a vmWare - Host all communication with said host worked like a champ. After reboot of said host, the only communications that work are from the host outward. Anyone have any ideas?  I would love to reboot, but as this is production hours that is not an option.

Everyone's tags (1)
22 REPLIES
Cisco Employee

Hello, check this bug

Hello,

 

check this bug 

CSCug43307

 

New Member

Hi Mtarawne. Do you suggest

Hi Mtarawne. Do you suggest to install newer version of IOS, f.e. 15.4.... ?

regards

New Member

Hi

Hi

In a Stack  3850 

repeatedly showing error  %ADJ-5-RESOLVE_REQ_FAIL: Adj resolve request failed for x.x.x.x

Base Ethernet MAC Address : f8:a5:c5:06:76:00
Motherboard Assembly Number : 73-15800-08
Motherboard Serial Number : FOC20484XUZ
Model Revision Number : AB0
Motherboard Revision Number : A0
Model Number : WS-C3850-48P
System Serial Number : FOC2048U14U


Switch Ports Model SW Version SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 56 WS-C3850-48P 03.07.03E cat3k_caa-universalk9 INSTALL
2 56 WS-C3850-48P 03.07.03E cat3k_caa-universalk9 INSTALL

New Member

Seems that if your logged in

Seems that if your logged in you can't search this bug. If you google it while your logged out google will come up with a hit and you can read the bug.

The the text under conditions does not make any sense to me. Nobody wants to see a log message every time the device needs to resolve an arp entry. You shouldn't have to disable something the makes the switch perform better just to avoid filling up the log with garbage.

The message interpreter tells you

Explanation    An internal software error occurred.

The details tell you to open a tac case.

Bottom line is..Will it be fixed, and in what code level will it be fixed.

 

New Member

If we are talking about 15.0

If we are talking about 15.0(2)SE6 on 3750x you should try "no ip cef optimize neighbor resolution" - that should do the trick. (this option was disabled by default on 12.2 train, but enabled by default on 15.0) The other way is to try to hunt down all arp "incomplete" entries and check the issues with them - that would solve the problem with messages too.

New Member

Hello Tomasz,i have the same

Hello Tomasz,

i have the same problem on a 3750X Stack with 15.0(2)SE6.
This command solve the problem for me at the moment,

thanks, great post

Regards,
Niels

Ran in this issue too after

Ran in this issue too after upgrading WS-C3750X-48P to c3750e-universalk9-mz.152-2.E4

no ip cef optimize neighbor resolution fixed the problem for me as well.

New Member

Tomaszu dobra robota ;)I don

Tomaszu dobra robota ;)

I don't have this problem anymore, the command completely solves the problem,  thank you Tomasz.

Best Regards
Witold

New Member

Same problem here on a 3650G

Same problem here on a 3560G with same software version - 15.0(2)SE6

no ip cef optimize neighbor resolution fixed the problem for me as well.

Thanks!

New Member

Thanks! had a 3750X stack

Thanks! had a 3750X stack running 15.0(2)SE6 and the command stopped the logs.

New Member

Thank you Tomasz,! have a

Thank you Tomasz,

! have a 3750X stack running 15.0(2)SE6 and the command stopped the logs :-)

IOS Release: c3750e-universalk9-mz.150-2.SE6

SKU's:

Unit#1 WS-C3750X-12S-S

Unit#2 WS-C3750X-12S-S

Unit#3 WS-C3750X-24T-S

Unit#4 WS-C3750X-24T-S

Keep up the awesome work.

 

New Member

Thank very much for this post

Thank very much for this post, I have tried and so far so good

 

I upgraded from 12.2 to 15.0(2)SE7 and I was seeing this log a lot... so default behaviour makes all sense to me :)

 

Best regards,

New Member

This was the direction I

This was the direction I received from TAC after we experienced the same issue when moving to 15.0(2)SE6.

"no ip cef optimize neighbor resolution" 

 

New Member

This works for me too.

This works for me too.

New Member

Aug 2016, just updated a

Aug 2016, just updated a 2960XR stack to 15.2(2)E5 and issue is still present; this solved it like everyone else.

New Member

it seems to be a bug that as

it seems to be a bug that as per the cisco is resolved on the latest IOS version 15.2.xx.

However I have a question, do you have dhcp snooping configured??

New Member

How did you resolve this

How did you resolve this issue?

New Member

I'm also using the 3750x in a

I'm also using the 3750x in a stack config wtih 15.0(2)SE6.  My switches didn't seem to respond to the command "no ip cef"

Instead, I removed this log message by entering the command:  "no ip route-cache cef"

Following instructions at this link: http://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/ios-software-releases-120-mainline/47205-cef-whichpath.html

New Member

Same problem on a 3750X with

Same problem on a 3750X with same software version - 15.0(2)SE6

no ip cef optimize neighbor resolution

the command fixed the problem for me as well.

Thanks!

Cisco Employee

Hello,

Hello,

This is a known bug on this IOS:

CSCuo89272: %ADJ-3-RESOLVE_REQ displayed continuously after upgrade to 15.0(2)SE6

Resolution summary:-

We were able to recognize software problem with 15.0(2)SE6 software. The bug is already raised with  our developers and bug ID is CSCuo89272 "%ADJ-3-RESOLVE_REQ displayed continuously after upgrade to 15.0(2)SE6". The fix is not yet available, however there is workaround which can be applied.

 Workaround:

execute "no ip cef optimize neighbor resolution"

external link: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuo89272/?reffering_site=dumpcr

Regards,

Rakhshanda Khan

New Member

It's not exactly comforting

It's not exactly comforting that more than two years has gone by without a fix.

New Member

thanks had this problem today

thanks had this problem today on 3750X when going to 15.0.(2)SE8 mentioned command stopped the logging flow,

Is this feature not fully supported on this code or what is behind this issue?

regards

Michal

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