Solved

Cisco NBAR

Posted on 2016-11-23
6
68 Views
Last Modified: 2016-12-01
We are using “match protocol rtp audio” in the QoS Class Maps w/o NBAR Protocol Discovery to look inside the packets to match on the CE router. Is that OK?
0
Comment
Question by:totaram
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 
LVL 30

Expert Comment

by:Predrag
ID: 41900108
Not OK. You need to use NBAR for that match.
0
 

Author Comment

by:totaram
ID: 41900132
I have never used NBAR in past, Can you please provide some config steps to include NBAR for using it?
0
 
LVL 30

Expert Comment

by:Predrag
ID: 41900360
NBAR should be enabled per interface basis
interface Gi1/0/49
 ip nbar protocol-discovery

more details - Chapter: Enabling Protocol Discovery
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:totaram
ID: 41901200
Just a quick question: NBAR is a recent thing but QoS has been around for long time. So, how did peeking inside of packet get taken place earlier?
0
 
LVL 30

Accepted Solution

by:
Predrag earned 500 total points
ID: 41901214
So, how did peeking inside of packet get taken place earlier?
There were no peeking inside packet at that level before NBAR. Expansion of P2P applications (kazaa, eDonkey, BitTorrent, WinMX..) created a need to peek into packets. Generally, marking of traffic was done by extended ACLs (up to L4 of  OSI model), upper levels were not included.
0
 

Author Closing Comment

by:totaram
ID: 41909745
Thanks
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
Let’s face it: one of the reasons your organization chose a SaaS solution (whether Microsoft Dynamics 365, Netsuite or SAP) is that it is subscription-based. The upkeep is done. Or so you think.
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…
Both in life and business – not all partnerships are created equal. Spend 30 short minutes with us to learn:   • Key questions to ask when considering a partnership to accelerate your business into the cloud • Pitfalls and mistakes other partners…
Suggested Courses
Course of the Month6 days, 3 hours left to enroll

626 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question