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Beginner

QoS clarification and deployment

Good day everyone - i'm working on deploying QoS across our corporation and have a few questions - i'll keep it simple as for layout of network.

 

 WAN(MPLS) -----(CERouter)----(OurRouter (2901)----(Switch(2960x)----devices (ip phone, desktop,etc..)

 

CE predefined QoS as follow marking so this is what they are expecting to receive as markings from me, which is fine. 

 

how do i go about this?

1 - create ACL for all the traffic i want to mark and use policy-map

- if i use ACL wont the deny all at the end of ACL dropped the rest of the traffic?

2 - where do i apply ACL to SVI?phusical?

 

I been reading tones of info online but i can grasp around how it functions... 

i'm a little confused how this comes together.

 

 

Hopefully i make sense...any help is appreciated. tks.

Everyone's tags (3)
4 REPLIES 4
Participant

Re: QoS clarification and deployment

Hi,

I think you can only understand QoS properly from the experts, not from the web - as I learnt myself.

I highly recommend this book by Odom Wendell on Cisco QoS, cheap second-hand too!

https://www.amazon.com/Cisco-Certification-Guide-Telephony-Self-Study/dp/1587201240/ref=sr_1_2?ie=UTF8&qid=1541277163&sr=8-2&keywords=cisco+qos

Regards,

Azam

Highlighted
VIP Mentor

Re: QoS clarification and deployment

Hello,

 

the ACL just needs to match what you want to prioritize (typically voice and video traffic), anything else goes in the default class.

 

Since you say your CE has QoS configured, can you find out what exactly is configured ? 

Beginner

Re: QoS clarification and deployment

Hi Georg - here are the markings; this is what they are expecting on their end from me - i guess my confusion is how do mark all this traffic coming in from LAN so that when it goes out WAN port its defined according? I gathered that each int would have an ACL filtering the traffic and classes marking traffic according to policy-map? thanks.

 

RT
class-map match-any RT
 description *** Real Time ***
 match ip dscp cs5 
 match ip dscp ef 
 
VC
class-map match-any VC
 description *** Video class***
 match ip dscp  cs4  af41  af42  af43
 
BH
class-map match-any BH
 description *** Business High ***
 match ip dscp cs3 af31 af32 af33 cs6 cs7
 
 
 BL
 description *** Business Low ***
 match ip dscp cs2 af21 af22 af23
 
 BE
 description *** Business Enhance ***
 match ip dscp cs1 af11 af12 af13
Beginner

Re: QoS clarification and deployment

The markings was provided to me from ISP (WAN).

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