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Forum Discussion

Noyan_137135's avatar
Noyan_137135
Icon for Nimbostratus rankNimbostratus
Feb 28, 2014

All VLANs seem to drop the same size of packets

Hi all,   In our NNMi system we have some alarms that point all VLANS in our CGN are dropping the same size of packets. What can it be caused by?   Critical --X---- 10:03:2...
application delivery
LTM
management
security
TMOS
TMSH
Night_67217's avatar
Night_67217
Historic F5 Account
Feb 28, 2014

Wild guess would be MTU issues. Have a read here: http://support.f5.com/kb/en-us/solutions/public/13000/900/sol13948.html?sr=35490402

 

However, best way to determine the root cause would be starting a tcpdump and checking what types of packets are dropped: http://support.f5.com/kb/en-us/solutions/public/6000/500/sol6546.html?sr=35490422

 

Did this start all of sudden? What changed in your network? Is this some new type of traffic reaching the BigIP?