Hi, can you help answer this question. This is a continuation from another thread. Please see attached diagram for details.
Imagine I attempt to change 2950C from vlan 22 to vlan 7. I created the vlan 7 database on 2950C, then the SVI int vlan 7 and assigned correct IP. I configured the default-gateway to vlan 7 and assigned 'int range f0/1 - 22' to access vlan 7 - OK. Then I deleted all vlan 22 information from 2950C. From the network I was able to ping SVI vlan 7 OK.
Twenty minutes later people complained that servers pointing to other switches on vlan 7 stopped responding.
Based on the mac address for 2950A and 2950C, I believe that 2950A should remain as the root bridge for vlan 7. Even though the ip default-gateway is not set on 2950A, in theory I think this is not enough to explain why when I made changes on 2950C to vlan 7 servers on vlan 7 stopped working.
Note: I am aware the 4507 should be setup as the STP root.This network as is now is suboptimal. At this point I just want to make sure I can justify why trying to make 2950C as a vlan 7 configuration did not work.