Do you have wireless access points on the switch in question? A wireless user switching back and forth between two access points on different ports will appear to the switch to be flapping. The only "solution" is to plug all your access points into a hub and plug that into the switch, which will mask the flapping from the switch. Or just ignore the messages.
"Flapping" means the switch is seeing the mac address (nic card hardware address) appearing on different switch ports. If the address changes ports a lot, the switch tells you about it. The switch cares because it has to keep a table of which mac is on which port, so it knows where to send packets. The switch is grumbling about having to update its tables a lot.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...