can anyone explain what does this error messages mean ?

eldhosepaul1 · ‎03-09-2010

%L2_MGR-4-BADVLAN_DNLDFAIL: Slot [dec]: Download Bad vlan failed, reason [chars]

%L2_MGR-4-ENTRY_DNLDFAIL: Slot [dec]: Download entries failed, reason [chars],

entries [dec]/[dec]

%L2_MGR-4-INPROGRESS: Download already in progress to slot [dec]

%L2_MGR-4-INVSLOT: Download to invalid slot [dec] requested

%L2_MGR-2-MGR_SPAWNFAIL: Failed to spawn L2-MGR task -- DFC linecards will

affected

%L2_MGR-4-MISSING_SLOTNO: Cannot get the slot to download l2 entries

Ganesh Hariharan · ‎03-09-2010


%L2_MGR-4-BADVLAN_DNLDFAIL: Slot [dec]: Download Bad vlan failed, reason [chars]
%L2_MGR-4-ENTRY_DNLDFAIL: Slot [dec]: Download entries failed, reason [chars],
entries [dec]/[dec]
%L2_MGR-4-INPROGRESS: Download already in progress to slot [dec]
%L2_MGR-4-INVSLOT: Download to invalid slot [dec] requested
%L2_MGR-2-MGR_SPAWNFAIL: Failed to spawn L2-MGR task -- DFC linecards will
affected
%L2_MGR-4-MISSING_SLOTNO: Cannot get the slot to download l2 entries

Hi,

Check out the below link for information about the error.

http://www.cisco.com/en/US/docs/ios/12_2s/system/messages/sem122sl.html

Hope to help !!

Ganesh.H

eldhosepaul1 · ‎03-09-2010

Hi ,

but the above link doesnot give much information about layer 2 manager messages. ex an expalantion of %L2_MGR-4-BADVLAN_DNLDFAIL : Slot [dec]: Download Bad vlan failed, reason [chars] says like this ""an attempt to download data to the line card has failed"", but i donot understand this explanation ...

would be great if someone expalins this..

Giuseppe Larosa · ‎03-09-2010

Hello Paul,

these messages are specific of C6500 internal architecture.

the CEF table is built by PFC with cooperation of MSFC both are on supervisors.

A complete copy of CEF table has to be pushed on DFCs.

DFCs are CEF caches that can be installed on linecards.

The sequence of messages that you have seen tell that an attempt to update L2 forwarding information has failed, as a result of this linecards that areq equipped with a DFC may have their local copy of CEF table that is not identical to master copy.

This could cause some connectivity issues if for example the change would be related to the MAC address of a next-hop, just to make an example.

if this series of messages happened only once and you are not aware of any issue you can keep an eye on it for some time.

If this happens multiple times in your system it is wise to open a Cisco Service Request.

Hope to help

Giuseppe

eldhosepaul1 · ‎03-09-2010

Your information was very useful..thanks for that...

could you explain what are the below messages ..just one line answer is sufficient...i'm in a process of analysing the cisco IOS messages.

L2_THROTTLE Messages
L2TM Messages
L3TCAM Messages
LAPB Messages
LC_10G Messages