Spanning-Tree Protocol
From Mycomputer Notes
(Difference between revisions)
| Line 2: | Line 2: | ||
;Spanning-Tree port States: | ;Spanning-Tree port States: | ||
| - | + | ;Blocking: Recevies BDPUs only | |
| - | + | ;Listenning: Building an Active topology | |
| - | + | ;Learning: Building a bridging table | |
| - | + | ;Fowarding: Sending and Receiving Data | |
| - | + | ;Disabled: Administratively down. | |
==Selecting Root bridge== | ==Selecting Root bridge== | ||
Current revision as of 00:36, 18 October 2006
- Spanning Tree Protocol (STP)
- STP is a bridged protocol that utilizes the spanning tree alogarithm, enabling a learning bridge to dynamically work around loops in a network topology by creating a spanning tree
- Spanning-Tree port States
- Blocking
- Recevies BDPUs only
- Listenning
- Building an Active topology
- Learning
- Building a bridging table
- Fowarding
- Sending and Receiving Data
- Disabled
- Administratively down.
[edit] Selecting Root bridge
By default the Root bridge is the one with the lowest MAC address but this can be manupulated by the administrator by changing the Root Priority. The command to used is
Switch#config term Switch(config)# spanning-tree vlan1 priority <0-65, 535> | default <32,768>
