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Author Topic: Downstream QOS  (Read 9635 times)

mb

  • Guest
Downstream QOS
« on: July 18, 2007, 07:42:21 AM »
Do you think that we will ever see the ability to control downstream QOS? I would love to be able to dedicate 100k of my 3m of bandwidth to my VOIP adapter. When the kids decide to download from a high capacity server, they get the full pipe and it causes issues if someone is using the phone. I should note that the upstream QOS seems to work just fine.
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ddwinell

  • Guest
Re: Downstream QOS
« Reply #1 on: July 18, 2007, 08:22:49 AM »
Have you tried giving your VOIP adapter a priority of 50 or so in the QoS engine? This should allow them to DL from higher capacity servers without interfering with your call.
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mb

  • Guest
Re: Downstream QOS
« Reply #2 on: July 18, 2007, 09:15:25 AM »
Quote from: GodTheHamster on July 18, 2007, 08:22:49 AM
Have you tried giving your VOIP adapter a priority of 50 or so in the QoS engine? This should allow them to DL from higher capacity servers without interfering with your call.
The VOIP adapter is set for a priority of 1. The way that the Ubicom QOS engine is implemented, the router only prioritizes outgoing traffic, consequently,  the VOIP adapter only has highest priority for what it sends out, not what is coming in for it. If another device (or a combination of devices) on the router is consuming most of the downstream  bandwidth, there is an insufficient amount (about 90k) for the VOIP adapter and incoming sound can be degraded. The Zyxel Zywall 2+ is the only router that I am aware of in this class that affords the opportunity to reserve downstream bandwidth for devices connected to it. I hope that Ubicom will address this shortcoming.
« Last Edit: July 18, 2007, 09:18:56 AM by mb »
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Lycan

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  • Level 15 Member
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  • Posts: 5335
Re: Downstream QOS
« Reply #3 on: July 18, 2007, 09:33:26 AM »
The feature you are refering to is "traffic shaping". QoS is a implementation of NAT that allows the end user to optimize outbound traffic. Traffic Shaping allows the end user to specifiy a set amount of bandwidth for a given application. D-Link offers this feature in thier business class products, mostly firewalls.
« Last Edit: July 20, 2007, 12:25:56 PM by Lycan »
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mrweirdo

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  • Posts: 1
Re: Downstream QOS
« Reply #4 on: November 12, 2007, 06:26:48 PM »
I have just recently purchased this router as a replacement for a old dying linux system I had setup as a router and now am having the same issue with downstream. Whenever someone downloads some huge at high speeds it seems to take out all other traffic as this router only does downstream. 

I'm really bummed about that as I love the dlink dir-655 otherwise but because of this I might have to send it back to newegg in exchange for a slightly more expensive linksys RVS4000 or WRVS4400N. Both of which feature both downstream and upstream qos management along with ability to set both speed limits for each rule.
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