Loading ...Spanning-Tree Protocol (STP) – II
Monday, April 13th, 2009STP States To participate in STP, each port of a switch must progress through several states. A port begins in a Disabled state moving through several passive states and finally into an active state if allowed to forward traffic. The STP port states are: Disabled, Blocking, Listening, Learning, and Forwarding. . Ports that are administratively [...]
Spanning-Tree Protocol (STP) – I
Monday, April 13th, 2009A Layer 2 switch, which functions as a transparent bridge, offers no additional links for redundancy purposes. To add redundancy, a second switch must be added. Now two switches offer the transparent bridging function in parallel. LAN designs with redundant links introduce the possibility that frames might loop around the network forever. These looping frames [...]