Solved

Networking - Etherchannel/STP

Posted on 2014-03-11
4
310 Views
Last Modified: 2014-03-16
Hi, have few questions. Can you please answer ?

1. Why is it required to have all links of same speed, type and duplex settings to be grouped into a Etherchannel. Why not have different link speeds participate in a Etherchannel group and what are the actual effects of having different speed links in a Etherchannel. Will it have impact on performance ?

2. Can we configure STP and RSTP on the same switch ? Can we configure STP and RSTP on interface level ? And what will happen if we connect STP and RSTP switches back-to-back. What will be port states/roles on RSTP switch ?

Thanks !
0
Comment
Question by:msatyav10
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 50

Accepted Solution

by:
Don Johnston earned 250 total points
ID: 39922522
1). For whatever reason, the engineers that came up with link aggregation decided that all links must be the same.  If I had to guess, it's because since traffic can be sent over any links in the group, it wouldn't be very smart to have some traffic sent over a gig link and other traffic over a 100mbp/s link.

2) No. The STP type is a global parameter. RSTP is backwards compatible with legacy spanning tree. So if you connect a RSTP switch to a STP switch, the RSTP switchport dumbs down to a STP behavior.
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 39932433
What part of my answer was incomplete?
0
 

Author Comment

by:msatyav10
ID: 39933263
Your answer was just fine. Sorry, I mean no disrespect.
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 39933298
You should read the grading guidelines.

B is the grade given for acceptable solutions, or a link to an acceptable solution. A B grade means the solution given lacked some information or required you to do a good amount of extra work to resolve the problem. When closing the question, the asker should explain why a B grade was awarded.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
fabric 1 60
How to safely test out TFTP server software 12 119
DFS replication issue 7 26
Mac address in Nexus7K fex port 5 18
A few months ago I attended the Rocky Mountain IPv6 Summit which was a two-day educational event; it was the 3rd annual conference held here in Denver, Colorado that was held at the Hyatt Regency Denver at the Colorado Convention Center. It was an e…
I eventually solved a perplexing problem setting up telnet for a new switch.  I installed a new Cisco WS-03560X-24P switch connected to an existing Cisco 4506 running a WS-X4013-10GE Sup II-Plus. After configuring vlans and trunking,  I could no…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

696 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question