No sw1 will not modify itself again and the the new switch will become the root bridge - note that this will be done on a per-vlan basis if using PVST+. So sw5 would become the root bridge for vlan 4 but not necessarily for all vlans although if you had used the "spanning-tree vlan x root primary" command for all vlans and the new switch had the lower priority then it would become root for all vlans.
If you want to avoid this you must ensure that the new switch does not have a lower priority or you can lool to enable root-guard within your switched network.
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...