having difficulties comprehending pieces of stp. can someone expand a bit on CST vs. 802.1d From my understanding 802.1d utilizes 1-to-1 of STP instance per VLAN where CST has one instance for all VLAN's.
Any further info would be appreciated.
802.1d is the IEEE spanning-tree algorithm that prevents loops in a layer 2 network.
CST is an implmentation of 802.1d where there is only one instance of STP running for all the vlans in your layer 2 network no matter how many vlans that is.
PVST/PVST+ is an implementation of 802.1d where each vlan runs it's own instance of STP.