Re: Spanning Tree Protocol

lee.bailey · ‎11-01-2001

Which layer of the OSI does this work at? I assume that as switches are layer 2 devices, STP must work at layer 2 as well?

millerv · ‎11-01-2001

correct.

clifford.gormley · ‎06-02-2013

layer 2

InayathUlla Sharieff · ‎06-03-2013

Hi Lee,

Yes you are perfectly correct, STP works at Layer 2.

Please find link below which explains which protocols works at what layer:

Layer 2 protocols (Data Link Layer)

* ARCnet

* CDP Cisco Discovery Protocol

* DCAP Data Link Switching Client Access Protocol

* Dynamic Trunking Protocol

* Econet

* Ethernet

* FDDI Fiber Distributed Data Interface

* Frame Relay

* HDLC High Level Data Link Control

* IEEE 802.11

* IEEE 802.16

* LocalTalk

* L2F Layer 2 Forwarding Protocol

* L2TP Layer 2 Tunneling Protocol

* LAPD Link Access Procedures on the D channel

* LLDP Link Layer Discovery Protocol

* LLDP-MED Link Layer Discovery Protocol - Media Endpoint Discovery

* PPP Point-to-Point Protocol

* PPTP Point-to-Point Tunneling Protocol

* Q.710 Simplified Message Transfer Part

* NDP Neighbor Discovery Protocol

* SLIP Serial Line Internet Protocol (obsolete)

* StarLan

* STP Spanning Tree Protocol>>>>>>>>>>>>>>>>>>>>>>>> STP Layer 2.

* Token ring

* VTP VLAN Trunking Protocol

HTH

Regards

Inayath

*Plz rate all usefull posts.

Ravi Singh · ‎06-04-2013

It works on Layer 2 as you know that switch is Layer 2 device. To know how it work you can see the below flash tutorial.