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тАО01-08-2006 09:53 PM
тАО01-08-2006 09:53 PM
100MbTrunk vs. 1gig link
Taking redundancy out, what are the other benefits of using a trunk in this scenario?
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тАО01-08-2006 10:11 PM
тАО01-08-2006 10:11 PM
Re: 100MbTrunk vs. 1gig link
A trunk can consist of up to 8 links, making a trunk having a maximum of 800Mb, which is obviously less then 1Gb.
Also because load balancing is done based on SA/DA pairs, it is possible that the 800Mb trunk won't be used fully. Some links in the trunk may be saturated, while others are almost unused.
Even more, it is never possible to get a speed above 100Mb for a single traffic flow, because all traffic from one flow will allways be assigned to the same link.
Also troubleshooting performance issues can be easier with only one link compared to trunks.
The biggest advantage of trunks above single links is indeed the "built-in" redudancy, but since you said not to consider this, I would recommend using a single gig link, or the best of two worlds, a gig trunk consisting of two or more links.
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тАО01-09-2006 01:55 AM
тАО01-09-2006 01:55 AM
Re: 100MbTrunk vs. 1gig link
You have a train going from point A to Point B. The train travels at 100 miles per hour. You add addition tracks so that two trains can travel at the same time but they still travel at the same speed. You don't get there any quicker.
Take the airplane... it travels at over 600 miles per hour.
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тАО03-14-2006 08:51 AM
тАО03-14-2006 08:51 AM
Re: 100MbTrunk vs. 1gig link
If an additional host tries to send traffic across that 4-port trunk and happens to chose the same link as the other host, we now lose traffic.
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тАО03-14-2006 10:32 AM
тАО03-14-2006 10:32 AM
Re: 100MbTrunk vs. 1gig link
I'm sorry, assuming the trunks are ISL, the host does not get to choose the trunk member. That decision is left to the switch.