Apr 27, 2017 · Hello Network Gurus, I noticed network flapping between g1/0/1 and g1/0/2 Both has stp portfast configuration on g1/0/1 a dummie switch has been connected. Could it cause …

Mar 18, 2013 · Start a conversation Cisco Community Technology and Support Networking Switching what causes flapping of uplink interfaces on a Cisco switch Bookmark | Subscribe

Dec 3, 2019 · Solved: Hi there, According to syslog, one port of one of our switches keeps flapping. Goes up and down. The end device of the port is a sharp printer. I tried to change …

Feb 8, 2022 · Dear All, We are having 4500 Cisco Core Sw. It seems some of the Uplinks are flapping and i dont exaclty know where its happening. can someone help how to troubleshoot …

Oct 9, 2014 · Hi, Yesterday I encountered an issue on our network in which we had the port channel between our hubrooms constantly flapping. We isolated the issue by disconnecting all …

Oct 6, 2014 · Hello All - I have a couple 3550XL's, one running 12.2(25)SEB4, the other 12.2(44)SE6. The ports are trunked and each has a Motorola Canopy AP connected with …

MAC flapping can also occur from looped network , did you trace the mac at layer 2 to see where it resides

Mar 27, 2018 · The cause for link flapping can be intermittent or permanent. Link flap prevention mechanism minimizes the disruption to switch and network operation in a link flap situation. It …

Mar 14, 2022 · Solved: Hi Everyone, Greeting! Can anyone suggest why mac address are flapping across wireless ? Please see the logs below. SW1 (config)#do sho int des Interface …

May 26, 2025 · This Article explains how to reset the oscillating_failure_counters from the primary MDM Oscillating_failure_counters are used to trace the all-time number of network flapping …