

I'm working on a QoS design for 2960x access switches in my company and could use some clarification. I'm using the command "mls qos queue-set output 1 buffers 15 30 45 10" to allocate buffers to Q1, Q2, Q3, & Q4. I believe this gives each queue a percent of the interfaces output buffer? Assuming that is true, can anyone give me some clarification on my primary concern....this command "mls qos queue-set output 1 threshold 1 55 75 75 250"

I know this says "for queue-set 1 & queue # 1

drop threshold 1 = 55% queue's memory

drop threshold 2 = 75% queue's memory

queue reserved memory = 75% of queue's allocated memory (confusing)

maximum threshold = 250% of queue's allocated memory if common buffers are available).

I don't understand how the drop threshold 1 and drop threshold 2 can range from 1 - 3200 % when the implicit drop threshold3 is 100% (essentially when queue is full perform tail drop).

Also, if anyone has any links/recommendations for best practices of buffer allocation (e.g. mls qos queue-set output 1 buffers 25 25 25 25) and/or buffer threshold configuration (e.g. mls qus queue-set output 1 threshold 1 55 75 75 250) I would greatly appreciate it. I've found several sites that explain what it's used for, and some that explain how to configure it, but not that might explain how to determine what buffer/threshold values I should pick for a given design goal.


Hi everyone, I'm in a crazy situation and I'm at my wits end. I need some help, advice, or even some reassurance that everything will be okay. So I'm an American and last year I moved to Germany and have lived here since. Last November I scheduled my CCNP route exam. I went through everything on Pearson Vue's website and didn't do anything different than when I schedule exams in the USA. After I got the confirmation email I noticed that the "non English speaker in a non English speaking country" +30minute accommodation. I called Pearson Vue and the accommodations agent I spoke with got it fixed. We weren't sure if it was a mistake I made or what so I just dropped it and passed my exam.

Now I have scheduled my CCNP switch exam for this Friday and I made for complete sure, no doubt, that it said no accommodations before I clicked confirm on the order. And the email that came in again had the accommodation. So it seems the Pearson Vue site is doing this automatically without my permission or knowledge, and after I've paid. So I called again but this time the accommodations agent told me there was nothing they could do for me and I would have to cancel the exam and reschedule it. But then I would be in the same situation! I called Cisco and I was told by them that's there's nothing they can do and to contact Pearson Vue. I'm in a loop of hell.

Is this something that I actually need to worry about? Would this cause issues with validity of my exam? I am mostly afraid that when I go into the exam and the center sees I'm American then they will report cheating or something. Has anyone else had this issue? If so, how did you handle it? I find it hard to believe that a native English speaker has never taken an exam in another country.

This whole situation has really put a bad taste in my mouth. If this was something that wasn't tied to my career I would have dropped it and never use Pearson Vue for anything again. I've sent an email to the accommodations department of pearson vue, but my exam being in just a few days I'm not sure if it will get resolved by then.

Any advice or suggestions would be greatly appreciated. Otherwise thanks for reading to my complaints and venting. I hope your experiences are better than mine is now.

1 comment

I'll try to be as specific as possible. I would welcome ANY advice regarding the CCNP switch exam but if you only prefer to speak directly to labing equipment, I would appreciate it just as much.

That being said, I'm approaching this from the standpoint of, not what the bare minimum would be but what would be the most effective. I do have a GNS3 ESXi Host that I run on a 24 core dual processor, 128 GB box. I prefer live equipment though, but would welcome suggestions regarding hybridization

I'm also not too terribly concerned about costs. If something is better suited to both practicing for exams and practicing for the real world, I would rather invest in that. While I've been in IT for a few years, I have never got a chance to work with production network equipment, at least as far as configurations go.

Lastly, I'm approaching this from the standpoint of pursuing a CCIE. I know not everyone can pass it but I'm going to at least try. So if purchasing something now, would be helpful for NP and necessary for IE, I'd rather go that route. Buy nice, don't buy twice!

Right now, I have: 3 3560G 48T (IOS 15X) 3 3750G 24T (IOS 15X) 1 3750G 24T 1.5RU (IOS 12X) 1 3560 24 PS (IOS 12X) 1 3560 8 PS (IOS 15X)

I'm not sure if it's relevant or not but I also have 2 2821s with NM-16-ESW, a 2811 with HWIC-8ESW and 2 2801s with HWIC-4ESW. I also have a 2921 with a security license that I'd be willing to purchase an ETHWIC module for. All of my routers are 15x

Obviously I know it's enough switches but my question revolves around E/X series, Stacking, and PoE.

  1. Would it be worth it to purchase an E or X series? If so, is IP services mandatory or will IP base work?


Anybody got a link to show authorized trainers in a city / country?

I am under a strong feeling the trainer / instructor may not be so but is giving the r&s ccna course.

Is there a function to search by instructor name?


Hi there,

I want to pre-face, not a networking guy and my admin that normally does this stuff is out for paternity and the project that was supposed to be laid back and casual all of a sudden.. well, isn't. Hoping for some help.

I want to split my switch into 3 vlans, easy, I figured out how to do that. Servers and such make it easy to add the tags to their Network ports. So that's done and should be working.

What I'm having difficulty with is tagging my client machines, I swear he mentioned there's a way to not have to set vlan tags on individual clients(so that they can move between networks when they need to) but I can't seem to figure out the correct thing to Google to do that. My scenario is this, just to make it clear.

I have a data network, and normally I live there. It's VLAN 10. I want to split a management network(for switches and such) off to vlan 20. Ideally, I want to have to physically move my connection in order to hop vlans networks, without having to futz with my computer's vlan tags to do it. Just plug and play.

Advice please?

I'm on Everest 16


Have a set of FI's with chassis and servers (single wire) connected, zero issues.

Also have FEX hanging off the FI for two servers.

Wondering if we move the direct connect servers to the FEX will they still consume a license? Or are licenses only consumed for the ports from the FEX to the FI?

I know direct attached servers consume a license, and the FEX ports consume a license too, just not sure about the servers connected to the FEX.



Completely baffled by this issue - any suggestions would be appreciated!

  • Recently replaced a 3845 router with a 4351 with nearly identical config.

  • 4351 router is running DHCP server for local clients.

  • Cisco 3650 is connected to router which then connects to Dell switches for clients.

  • Regular clients (Windows, etc) get IP address from DHCP server without issue.

  • PXE clients don't get an IP address from DHCP server.

  • Cisco IP phones don't get an IP address from DHCP server.

  • Both PXE clients and Cisco IP phones were able to get an IP without issue from the previous 3845 router.

  • DHCP pool config is identical on both routers.


In my effort to learn new skills I am trying to add a prompt to my companies IVR script.

I uploaded it in UCCX in prompt management. But how do I reference it in the script?

I tried looking up how to do this, but couldn't find what I needed. Cisco documentation always has been a pain for me.


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