Configure Spanning Tree

Step 1: Examine the default configuration of 802.1D STP.

On each switch, display the spanning tree table with the show spanning-tree command. Root selection

varies depending on the BID of each switch in your lab resulting in varying outputs.

 

S1#show spanning-tree

VLAN0001

  Spanning tree enabled protocol ieee

  Root ID    Priority    32769

             Address     0019.068d.6980

 

             This bridge is the root

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

 

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)

             Address     0019.068d.6980

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

 

Interface        Role Sts Cost      Prio.Nbr Type

---------------- ---- --- --------- -------- --------------------------------

Fa0/1            Desg FWD 19        128.3    P2p 

Fa0/2            Desg FWD 19        128.4    P2p 

Fa0/3            Desg FWD 19        128.5    P2p

S2#show spanning-tree

VLAN0001

  Spanning tree enabled protocol ieee

  Root ID    Priority    32769

             Address     0019.068d.6980

             Cost        19

             Port        1 (FastEthernet0/1)

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

 

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)

             Address     001b.0c68.2080

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

 

Interface        Role Sts Cost      Prio.Nbr Type

---------------- ---- --- --------- -------- --------------------------------

Fa0/1            Root FWD 19        128.1    P2p 

Fa0/2            Desg FWD 19        128.2    P2p

Fa0/6            Desg FWD 19        128.6    P2p 

Fa0/11           Desg FWD 19        128.11   P2p

Fa0/18           Desg FWD 19        128.18   P2p 

S3#show spanning-tree

VLAN0001

  Spanning tree enabled protocol ieee

  Root ID    Priority    32769

             Address     0019.068d.6980

             Cost        19

             Port        1 (FastEthernet0/1)

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

 

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)

             Address     001b.5303.1700

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

 

 

Interface        Role Sts Cost      Prio.Nbr Type

---------------- ---- --- --------- -------- --------------------------------

Fa0/1            Root FWD 19        128.1    P2p 

Fa0/2            Altn BLK 19        128.2    P2p

 

Posted Date: 5/22/2013 6:19:17 AM | Location : United States

Ask an Expert

Related Discussions:- Configure spanning tree- ccna, Assignment Help, Ask Question on Configure spanning tree- ccna, Get Answer, Expert's Help, Configure spanning tree- ccna Discussions

Write discussion on Configure spanning tree- ccna
Your posts are moderated

Write your message here..

Related Questions

Show concept of permutation network, Q. Show Concept Of Permutation Network... Q. Show Concept Of Permutation Network? In permutation interconnection networks the information transfer necessitates data transfer from input set of nodes to output set of nod

Explain process management and transaction management, TP Monitor does main... TP Monitor does mainly two things extremely well. They are Process management and Transaction management? They were originally introduced to run classes of applications that co

What is the full form of FDM and TDM, What is the full form of FDM and TDM ... What is the full form of FDM and TDM It is both. Each of the 100 channels is possess its own frequency band (FDM), and on every channel two logical streams are intermixed by th

Networking project for 20 computers, can i get a sample networking project ... can i get a sample networking project for 20 computer with all network components?

Explain dynamic domain name system, Q. Explain Dynamic Domain Name System? ... Q. Explain Dynamic Domain Name System? DDNS - Dynamic Domain Name System automatically updates the DNS master file - Sent by DHCP to a primary DNS server; secondary se

Domain names and address resolution, However what if you don't know about t... However what if you don't know about the IP address of the computer you wished to connect to? What if you have to access a web server referred to as www.abc.com? How does your web

Describe in brief about tree topology, Tree topology Comments 1 -... Tree topology Comments 1 - This features star nodes on a bus network 2 - All the disadvantages and advantages of both types of networks described above apply to this s

Configure basic switch parameters- ccna, Configure basic switch parameters.... Configure basic switch parameters. Configure the S1, S2, and S3 switches according to the following guidelines: Configure the switch hostname. Disable DNS lookup.

Transport layer , Transport Layer In computer networking it the transp... Transport Layer In computer networking it the transport  layer is where  sessions are  exchanged between  hosts. This layer resides  between  the application layer and  networ

Describe about data communications, Q. Describe about Data Communications? ... Q. Describe about Data Communications? - Data - Information presented in whatsoever form is agreed upon by the parties creating and using the data - Data Communications - ex