Hi,Well, you could concentrate more on eliminating cabling/gbic/port issues and also consider configuring udld port aggresive and stp loopguard feature on the concerned ports to detect any STP failures.Regards,Chaitra

Hi,This message occurs when a keepalive packet is looped back to the port that sent the keepalive. STP loops, bad GBIC/fiber, wrong cable being accidently plugged in could bereasons for the error message to be seen. This is documented in a software b...

Hi,You should see link flaps or any errors related to te4/5 or module 4 under "show log" output. You could also check diagnostics of the module using :"show diagnostics result module 4" and "show diagnostics events"Regards,Chaitra

Hi Peter,Yes, you are right. I over-looked the mac-address as it resembles the one used for STP BPDUs, my bad Regards,Chaitra

Hi Sudip,The output drops seen on the interface is same as the QoS drops seen on Queue 2 :  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops:  35544    queue     dropped  [cos-map]     ---------------------------------------------...