?
Solved

Does it make sense to port channel two 1GB interfaces in this scenerio?

Posted on 2008-06-23
5
Medium Priority
?
851 Views
Last Modified: 2008-06-25
Hi experts,

In this scenerio, I need to uplink switch A ( Cisco 4948) to switch B ( Cisco 6513). The interfaces on both switches and the fiber is only 1GB speed. Is there any benefit  to configure a port channel between two gig ports on Switch A to uplink to Switch B?  I mean, the switches can't uplink at 2GB speed anyways, correct?
Switch B is low on Gig interfaces so I'd rather not waste the extra interface to accomodate a port channel if It won't make a difference.
 
0
Comment
Question by:typertec
[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
5 Comments
 
LVL 3

Assisted Solution

by:AugustTen
AugustTen earned 400 total points
ID: 21853824
It depends on the blades you have in the 6513. The X6148 Asic can only support 1Gbps of traffic per EtherChannel, but if you have better blades you will get twice the throughput.
0
 
LVL 50

Assisted Solution

by:Don Johnston
Don Johnston earned 600 total points
ID: 21854488
If you have traffic between the switches from multiple devices, then yes, there will be a benefit since some of the traffic (hopefully, about 50%) will be crossing one physical link and the remaining traffic on the other.
0
 

Author Comment

by:typertec
ID: 21858499
AUGUSTTEN, what if we have the WS-X6516-GE-TX line cards? Are they rate limited at 1gb?
0
 
LVL 3

Expert Comment

by:AugustTen
ID: 21863511
I don't think 6516 have the same problem.

You should see a warning message on the console when you enable the port-channel if they have this restriction.
0
 
LVL 32

Accepted Solution

by:
harbor235 earned 1000 total points
ID: 21865220
Etherchannel gives you several benfits, first high availability, two links in a bundle will continue
to operate if one link fails. So etherchannel reduces your failure domain helping you achieve better availibity numbers. Second, perfromance, channeling allows the device to load balance the traffic over multiple links increasing available bandwidth, there is some overhead so its not a 2X situation but its not far off.

harbor235 ;}
0

Featured Post

Simple, centralized multimedia control

Watch and learn to see how ATEN provided an easy and effective way for three jointly-owned pubs to control the 60 televisions located across their three venues utilizing the ATEN Control System, Modular Matrix Switch and HDBaseT extenders.

Question has a verified solution.

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

If you’re like me and you like peace and quiet, saving money, and pretty lights, then this article is for you. For financial reasons, I buy all the Cisco equipment for my home lab second-hand. The first thing to wear out is usually one of the coo…
Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…
Suggested Courses
Course of the Month15 days, 6 hours left to enroll

770 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