If you are running the IOS with integrated CSCto67828 fix, which allows you to configure a static drop entry for invalid MAC 0.0.0 then it's possible to limit CPU hit by these frames:
# mac address-table static 0.0.0 vlan 123 drop
Since it's hard to trace frames with invalid 0.0.0 MAC address the only way to find out the source is to bring down the interfaces in VLAN 123 on the access switch one by one till the the message disappear.
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 ...