[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 553
  • Last Modified:

spanning tree question

Can one reflect some light on the following scenario:
A switch is connected to hub (fa0/1 to fa0/1) and working fine. If someone attaches another copper wire between fa0/2(sw) to fa0/2(hub), how would the situation change?

1. fa0/1 on sw would go in block
2. fa0/1 on hub would go in block
3. fa0/2 on sw would go in block
4. fa0/2 on hub would go in block

This is like a cisco cert exam question...
0
totaram
Asked:
totaram
2 Solutions
 
Don JohnstonInstructorCommented:
Hubs don't support STP.

So it would be #3 (fa0/2 on sw would go in block).

The port with a higher STP port number of the switch would block. There's no requirement that the STP port numbering has to follow the physical port numbers. Although on every switch I've ever seen, the lower physical port numbers have a lower STP port number.
0
 
pergrCommented:
Effectively, seen from the switch it is the same thing as connected fa0/1 directly to fa0/2 on the switch.
0

Featured Post

 The Evil-ution of Network Security Threats

What are the hacks that forever changed the security industry? To answer that question, we created an exciting new eBook that takes you on a trip through hacking history. It explores the top hacks from the 80s to 2010s, why they mattered, and how the security industry responded.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now