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[FrankTheTank]

I have a DIR-868L, A1, with firmware 1.0.8 1.0.9, NA.  I would like to adjust the QoS settings so that a single port has the lowest priority and all the other ports have the highest (or higher) priority.  Is there anyway to accomplish this?  I previously owned a DIR-655 and the ability to lower the priority of a single port was possible on that model.  Therefore, I would assume the same is possible for the 868L.

If there is no way to lower the priority, then is there a way to set the priority for a range of ports?  If there is then I could create 3 three rules to accomplish the same thing:

• [0 - (X-1)] - Highest (1)
• [X] - Lowest (4)
• [(X+1) - 65535] - Highest (1)

Where X is the port set to the lowest priority.

Clarification of the Original Question:  What is the priority setting for all ports not explicitly set in the QoS settings?  A possible solution would be to set a single port to a priority lower than all the unassigned ports.  This requires knowing what the implicit setting is for ports not assigned in the QoS settings.

Answer: From DLink: "All ports that are not being set prioritized will go under normal traffic."  In other words, setting a single port to "Best Effort" puts it below the priority of all ports that are not defined.

June 2016 Update: QoS does not function properly on the DIR-868L.  Details can be found in the FORUM USER REQUESTS and BUGS:

http://forums.dlink.com/index.php?topic=55708.0

[FurryNutz]

Link>Welcome!

• What region are you located?

Since this router has a new generation QoS engine, It may not be possible to do it as the old gen router was able to due to a new design in QoS and how it works.

For an example of how this new QoS can be used, please review this:
DIR-645/835/868L/865L/826L Gaming and QoS for XBL

What was the process you were using on the DIR-655? What Rev model was it?

[FrankTheTank]

Thanks for the reply.

What region are you located?

I'm located in the NA region.

Since this router has a new generation QoS engine, It may not be possible to do it as the old gen router was able to due to a new design in QoS and how it works.

If this generation of the QoS engine took out the ability to lower the priority of a single port or, at the very least, the ability to adjust the priority of port ranges as a design choice, then it is clearly making a step in the wrong direction.  On my DIR-655 (A4), the option for a port range is clearly present (check out the emulator).

If this is not possible with the DIR-868L then I am returning it...

[FurryNutz]

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. We find that phone contact has better immediate results over using email.
Let us know how it goes please.

[FrankTheTank]

I contacted D-Link support to get some answers regarding my QoS request.  The two techs I spoke to gave different answers, so I am not entirely sure what to believe.

First, both techs were able to confirm that there is no way to set port ranges in QoS.  They claimed that: "Unfortunately this is a product feature's limitation but we will try to report it to our Network Engineers."  They mentioned that they would look into adding it into the next firmware, but I doubt it.

As for lowering the priority of a single port, both techs gave a different answer.  According to the first tech I spoke to, "all ports not explicitly set in the QoS have an implicit priority of Normal (Queue Priority 3)."  Therefore, if I were to set one port to Best Effort (Queue Priority 4) then it would be the lowest and all other traffic would be higher.  This is exactly what I am looking for.

However, the second tech I spoke to, who didn't seem very knowledgeable on how QoS works, claimed that "all ports not explicitly set in the QoS have an implicit priority of Best Effort (Queue Priority 4)."  That any port set in QoS would be higher than all the ports not set.  This would make setting the lowest priority impossible.

My instinct is to trust the first tech.  The second tech seemed to contraction herself several times and made several weird statements that revealed that she really didn't understand what QoS was.  In any case, the D-Link support team said that they would ask the engineers and get back to me...

[FrankTheTank]

From D-Link Support:

As I verified if you set up a priority (either lowest or highest) to a certain port or single port, all other ports that are not been set to priorities are on normal priority.

[FurryNutz]

I've asked my contact at D-Link to give some clarification on this. Please be patient.

Thank you.

[FrankTheTank]

I've asked my contact at D-Link to give some clarification on this. Please be patient.

Thank you.

Thanks.  I will try to be patient, however, the period in which I can return my DIR-868L is quickly coming to an end.  If I can't get a definitive answer soon I will have no choice but to return the DIR-868L.

[FurryNutz]

I haven't heard anything from D-Link. I recommend that if your wanting to return this with in the time frame that you still have, you might do so.

[FrankTheTank]

I haven't heard anything from D-Link either.  They claim that they have forwarded the request to the engineers, however, it feels like they are just ignoring me.  I called them back today to remind them that a week is sufficient time to answer a request for information.

[FurryNutz]

Ya there should be some feed back. However I believe CES has been going on hasn't it? Could be that D-Link is busy with that as well. I notice I haven't received any emails on other subjects i've asked about either as of late.

[FrankTheTank]

Still waiting for a response from D-Link...

[FurryNutz]

I never heard anything back either. I recommend you get on the phone and ask for level 2 or higher support and see what you can find out.

[FrankTheTank]

Update: A DLINK representative contacted me to inform me that they were still looking into my case.  Apparently, at DLINK it takes more than three months to answer a request for information. 

At this point its obvious that they can't or don't want to answer my question.  It's very disappointing, since I really liked DLINK before this.

I asked the tech to leave the case open and if I get anymore information I will post it.

In the mean time, to anyone buying the DIR-868L for QoA, be warned...it might not behave the way you think.

[FurryNutz]

Thanks for the information and feed back. I have had my contact review this and they are aware of your case # and I've seen a couple of other reviews on this as well. I'll post information about it if I get some or have them post something. Please be patient.

Thank you for your time.