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 Message Boards » » Nortel VoIP over Cisco CAT 3750s Page [1]  
Amsterdam718
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how do I configure the QoS / CoS on this ? it's going to be a point to point 1GB fiber connection from Verizon. No MPLS involved. The phones are going to be Nortel IP phones talking back to a Nortel PBX.


Nortel for Voice and Cisco for Data.

8/13/2007 6:39:25 PM

DoubleDown
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you have no idea what you're doing, do you

8/13/2007 7:45:44 PM

Amsterdam718
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I just need the QoS configs. Stop being a dickface.

8/13/2007 8:04:59 PM

esgargs
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Give up on life, B

You suck at it, G

8/13/2007 8:28:11 PM

Amsterdam718
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esparagus. go fuck yourself.

8/13/2007 8:29:30 PM

esgargs
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Seriously

What kind of a low life lets you handle tech stuff?

Choke on failure, G

8/13/2007 8:31:59 PM

Amsterdam718
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Quote :
"mls qos map dscp-cos 40 to 3
mls qos map cos-dscp 0 8 16 26 32 46 48 56
mls qos srr-queue input bandwidth 90 10
mls qos srr-queue input threshold 1 8 16
mls qos srr-queue input threshold 2 34 66
mls qos srr-queue input buffers 67 33
mls qos srr-queue input cos-map queue 1 threshold 2 1
mls qos srr-queue input cos-map queue 1 threshold 3 0
mls qos srr-queue input cos-map queue 2 threshold 1 2
mls qos srr-queue input cos-map queue 2 threshold 2 4 6 7
mls qos srr-queue input cos-map queue 2 threshold 3 3 5
mls qos srr-queue input dscp-map queue 1 threshold 2 9 10 11 12 13 14 15
mls qos srr-queue input dscp-map queue 1 threshold 3 0 1 2 3 4 5 6 7
mls qos srr-queue input dscp-map queue 1 threshold 3 32
mls qos srr-queue input dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23
mls qos srr-queue input dscp-map queue 2 threshold 2 33 34 35 36 37 38 39 48
mls qos srr-queue input dscp-map queue 2 threshold 2 49 50 51 52 53 54 55 56
mls qos srr-queue input dscp-map queue 2 threshold 2 57 58 59 60 61 62 63
mls qos srr-queue input dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31
mls qos srr-queue input dscp-map queue 2 threshold 3 40 41 42 43 44 45 46 47
mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7
mls qos srr-queue output cos-map queue 3 threshold 3 2 4
mls qos srr-queue output cos-map queue 4 threshold 2 1
mls qos srr-queue output cos-map queue 4 threshold 3 0
mls qos srr-queue output dscp-map queue 1 threshold 3 41 42 43 44 45 46 47
mls qos srr-queue output dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31
mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54 55
mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62 63
mls qos srr-queue output dscp-map queue 3 threshold 3 16 17 18 19 20 21 22 23
mls qos srr-queue output dscp-map queue 3 threshold 3 32 33 34 35 36 37 38 39
mls qos srr-queue output dscp-map queue 3 threshold 3 40
mls qos srr-queue output dscp-map queue 4 threshold 1 8
mls qos srr-queue output dscp-map queue 4 threshold 2 9 10 11 12 13 14 15
mls qos srr-queue output dscp-map queue 4 threshold 3 0 1 2 3 4 5 6 7
mls qos queue-set output 1 threshold 1 138 138 92 138
mls qos queue-set output 1 threshold 2 138 138 92 400
mls qos queue-set output 1 threshold 3 36 77 100 318
mls qos queue-set output 1 threshold 4 20 50 67 400
mls qos queue-set output 2 threshold 1 149 149 100 149
mls qos queue-set output 2 threshold 2 118 118 100 235
mls qos queue-set output 2 threshold 3 41 68 100 272
mls qos queue-set output 2 threshold 4 42 72 100 242
mls qos queue-set output 1 buffers 10 10 26 54
mls qos queue-set output 2 buffers 16 6 17 61
mls qos
"




will this one work ?

8/13/2007 8:33:40 PM

occamsrezr
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No, because you haven't shambulated the qos values.

8/13/2007 9:41:00 PM

BobbyDigital
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haha, if you had even a dozen brain cells, you'd have discovered that the 3750 will configure all the QoS you need with one macro.

RTFM



EDIT:

oh and when you type shit like this:

'QoS / CoS'

It's clear that you don't have the slightest clue of what you're doing.


[Edited on August 13, 2007 at 10:09 PM. Reason : adsf]

8/13/2007 10:08:36 PM

Amsterdam718
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what do you mean "one macro". I need to configure the 3750 for Nortel VoIP. do you have any suggestions. that's why i posted the thread. with cisco voip its pretty simple. there is a dscp setting that I'm not sure how to calculate on Nortel.

8/13/2007 10:23:50 PM

robster
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DSCP is a value taken from a section of the ip header... ex. Cisco uses "EF" by default for VOIP ... My guess is that Nortel does also, although I dont read the documents from subpar vendors.


By Macro, Bobby means 1 command that configures that router to do QoS optimally for voice, instead of 30-40 lines of commands like you copied to this thread.

RTFM man... it will save you some embarrassment ... (or open a TAC case)

8/13/2007 10:41:05 PM

csdozier
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^^^ I assume he is talking about AutoQos, look it up

8/14/2007 7:42:36 AM

seedless
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this thread seems to be a complete troll attempt by a competent person. i mean how could someone be put in a job to do something like this, then post 40 lines of code that apparently shows incompetence when one macro will do the job? i am really start to believe that this amsterdam is in fact an alias.

8/14/2007 8:14:12 AM

Amsterdam718
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I disagree I'm aware that one macro works in an all Cisco environment, but not with Nortel equipment.

8/14/2007 8:30:51 AM

BobbyDigital
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Quote :
" there is a dscp setting that I'm not sure how to calculate on Nortel."


There's nothing to calculate. IIRC, Nortel IP phones mark DSCP EF (again you will want to verify by using the RTFM method).

and then the magic command on the switch is

auto qos voip trust
(per-inteface)

Read this:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12237se/scg/index.htm

8/14/2007 8:34:36 AM

Amsterdam718
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Quote :
""
a complete troll attempt by a competent person. i mean how could someone be put in a job to do something like this, then post 40 lines of code that apparently shows incompetence when one macro will do the job?[quote]



no sure about this guys. the DSCP on Nortel is different then Cisco. I believe you have to have the Cisco convert the DSCP 40 to a COS value of 3 on the Cisco equipment, which explains the 40 lines of code. i think that's how it has to be done.

i don't think Cisco Auto QoS is the cure all in this scenerio.

8/14/2007 10:13:28 AM

BobbyDigital
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Quote :
" the DSCP on Nortel is different then Cisco."


Everything I find tells me that Nortel marks DSCP EF just like Cisco, Avaya, and Mitel.

Even if it marks a different value, it's pretty straightforward.

Quote :
"Cisco convert the DSCP 40 to a COS value of 3 on the Cisco equipment,"


you don't convert DSCP to CoS. That statement along with just about everything you've posted shows that you have a fundamental lack of understanding of what you're trying to do. DSCP is part of the IP header. CoS is part of the 802.1q tag. You can configure a map between the two on the switch, and preserve/re-mark as needed, but you can't "convert." That doesn't even make sense.

8/14/2007 12:40:21 PM

30thAnnZ
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LAWL

8/14/2007 12:58:22 PM

csdozier
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Marking
When powered-up, Nortel IP Phones contact the Terminal Proxy Server
(TPS) that controls them. The TPS then instructs the IP Phones to mark all
packets with a default, yet configurable (through CS 1000 Manager) DSCP
and/or 802.1Q/802.1p tag. The tag is also configurable using CS 1000
Element Manager.
The control packets are marked for each of the following:
• Signaling Server
• Voice Gateway Media Cards
• Media Gateway 1000T (MG 1000T)
• Network Routing Service




Configure QoS (ip line card on communications server)


Configure QoS by enabling 802.1Q and NAT support, configuring DiffServ
CodePoint (DSCP) settings, and configuring OM QoS thresholds.
Procedure 30
Enabling 802.1Q and configuring DSCP settings
1 Click the QoS tab. See Figure 76.
Figure 76
New Node – QoS tab
Configuration of IP telephony nodes using OTM 2.2 Page 293 of 770
IP Line Description, Installation, and Operation
2 802.1Q enables virtual LANs (VLANs) to be defined within a single LAN.
This improves bandwidth management and limits the impact of broadcast
and multicast messages.
Configure the 802.1Q settings as follows:
a. Enable 802.1Q support: Select the check box to enable 802.1Q
support. By default, 802.1Q support is disabled.
b. Priority Bits value (802.1p): The priority field is a 3-bit value, with a
default value of 6. The range is 0 – 7. A value of 6 is recommended
by Nortel Networks. The p bits within the 802.1Q standard enables
packet prioritization at Layer 2, improving network throughput for
IP Telephony data.
Note: These values are applied to all Voice Gateway Media Cards in the
node.
3 Under DiffServ Codepoint, modify the DSCP Control and Voice values
only as directed by the IP network administrator.
The recommended configuration values are:

a. Control packets: A value of 40 – Class Selector 5 (CS5). This sets
the priority of the signaling messaging.


b. Voice packets: A value of 46 Control DSCP – Expedited Forwarding
(EF).
The DSCP determines the priorities of the management and voice
packets in the IP Line network. The range for both management and
voice packet DSCP is 0 – 63 inclusive.
The DSCP value can be configured, if required, to obtain better QoS
over the IP data network (LAN/WAN).
The value entered depends on the policy in the customer’s data
network.
Note: Do not change DSCP from the default values unless instructed.
4 Click Apply and then click OK.
Note: As described on the QoS tab, NAT and QoS parameters are no
longer configured here. Therefore, those areas are grayed out.



I have access to all the nortel manuals so I used the RTFM method and found this information in about 5 minutes.. When you turn on QOS on Nortels it sets Voice packets (rtp) to DSCP 46(EF) and control packets to DSCP 40 (CS5).

that well be $100, no checks please

8/14/2007 1:53:12 PM

Amsterdam718
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csdozier. thank you. you are one of the first posters in Tech Talk that's not a dickbag. so what if I said convert when I meant map. the whole point in making this thread is I'm not a QoS expert I was just looking for some guidance. Again CSDOZIER thanks for not being a snob and a dickbag.



God Bless You, B.

8/14/2007 2:37:54 PM

esgargs
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Quote :
"I'm not a QoS expert"


ummmm

You ain't even a novice.

8/14/2007 2:43:29 PM

Amsterdam718
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esparagus ! shouldn't you be on To Catch A Predator or something . . . ?

8/14/2007 2:47:32 PM

evan
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Quote :
"
auto qos voip trust
"


thx2u bobbydigital, at least someone's not a complete moron around here

8/14/2007 3:20:41 PM

BobbyDigital
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Quote :
"the whole point in making this thread is I'm not a QoS expert I was just looking for some guidance."


The problem is that you have no interest in trying to learn these things for yourself and want people to do your work for you. I have zero respect for that.

8/14/2007 3:34:13 PM

Amsterdam718
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you're so wrong, man. but thanks for being a dickbag about this whole thing cause I did in fact learn some things from this thread. and I'll apply it when I draft my QoS assessment document tonight.

8/14/2007 4:18:06 PM

pmcassel
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haha lets all gang up on amsterdam
seriously, not everyone can focus 100% of their attention on one single technology
but maybe tech support > wolfweb?
hey, id prob ask here too

8/14/2007 4:28:25 PM

cdubya
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Don't feel bad dude, I think you raised a valid question, and there's some decent info in this thread.

Quote :
"although I dont read the documents from subpar vendors."


Oh jesus. I mean I love cisco as much as the next guy, but don't be a fan boy



[Edited on August 14, 2007 at 5:46 PM. Reason : I won't be an ass]

8/14/2007 5:43:19 PM

BobbyDigital
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^ word.

We do a lot of shit really really well, but there are certain areas where we suck more dick than a frat groupie.

8/15/2007 7:48:28 AM

robster
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^^ ... just a half sarcastic comment ... to say that I cant even read all the cisco stuff im supposed to know, let alone start reading other vendors crap for the same technologies.

8/15/2007 8:17:08 AM

SandSanta
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Cally

When I type something into the google search box, then click google image search, it should automatically search the text I entered rather then clearing and making me enter shit again.

Please get this request to the appropriate authorities.

It is of vital importance to my internet lolpictar posting ability.

<3<3

8/16/2007 2:06:50 AM

cdubya
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That's actually a pretty good point.

8/16/2007 11:27:53 AM

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