Each port of hub doesn't have a mac address,but each port of switch do have a mac address ,why each port of switch need a mac address? And in spanning tree protocol,the mac address is one part of bridge id,but because there are several mac address in a switch,so which port's mac address becomes the bridge id?
The bridge ID is 8 bytes - 2 bytes are the bridge priority and 6 bytes are the mac address. Some Catalysts pull the mac address from the sup mod (eg cat5000s), while others pull the mac from the backplane (eg cat5500 and cat6000s). It will be the lowest mac address from there.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...