10-13-2007 02:05 PM - edited 03-05-2019 07:04 PM
STP/RSTP does not handle multiple copies of the same frame from different ports on the same switch/vlan. Is there another protocol that handle this situation without corrupting the mac table?
10-13-2007 05:21 PM
Multiple copies of the same frame from different ports on the same switch will not "corrupt the MAC table" as such, but is known as "host flapping". If STP/RSTP is doing its job correctly, then it simply should not happen, and can be regarded as a breakdown in you network topology.
Do you have a specific problem you would like to tell us about?
Kevin Dorrell
Luxembourg
10-13-2007 07:54 PM
A vendor provided five servers with the same MAC software defined. They worked fine until I moved them to the same lan segment. Using wireshark, I seen what appears to be copies of MAC going into the switch. "show mac-address-table" had incomplete statements. This put the switch (C2950G) utility to 90%. STP/RSTP does not appear to be able to handle this situation well. Is there another layer 2 routing protocol that would handle this scenario better?
Regards,
//CREM
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: