Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Limit internet usage on ASA 5520

Posted on 2008-06-18
4
Medium Priority
?
3,168 Views
Last Modified: 2010-04-21
We had a 10mb/s connection for the company.  We have a company that will be uploading extremely large files overnight that would require much greater speeds.  We have gotten 'bursting' enabled at our ISP so we can have transfer rates above our 10mb connection.  The ISP charges extra for traffic using the 'bursting' so we need to throttle the overall usage for everyone during the day.

Right now, I don't really care about the overnight upload requiring the extra speeds because that isn't happening for another week, so if that makes the situation more complex I just need to be able to throttle the connection.  The company has already signed up for the extra speeds and we are being charged.

I am reading http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_tech_note09186a008084de0c.shtml
but honestly I don't know if that is what I'm looking for.  From a document in the help area of the ASA5520 I found this :

     Rule Actions > QoS Tab
     Add/Edit Service Policy Rule Wizard > Rule Actions > QoS Tab (You can get to this tab through various        
     paths.)
     The QoS tab lets you apply strict scheduling priority and rate-limit traffic.
     Restrictions
     Policing traffic in the inbound direction is not supported.
     You cannot enable both priority and policing together.

"Policing Traffic in the inbound direction is not supported" was the part that threw me.  I'm not the strongest Cisco guy, and the boss is on vacation.

I could really use some guidance.  I can provide details, but I honestly don't know if I need "Policing" "Traffic Shaping" or "Priority queueing".  I am on a time crunch for this, and appreciate any help.

Thanks.
0
Comment
Question by:gracewild
[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
  • 2
  • 2
4 Comments
 
LVL 6

Accepted Solution

by:
raptorjb007 earned 2000 total points
ID: 21812910
The ASA only has two types of QoS. The first is Priority traffic, this is a simple traffic class that you define that has priority above all other traffic. The second one is policing, this is a simple bandwidth limit applied outbound on an interface for traffic you define, all traffic above the limit is dropped.

So, if you want to limit bandwidth usage you need to use policing. You define the traffic that needs to be limited then set a limit and apply it to an interface.

If you need, I can assist you with configuring policing.
0
 

Author Comment

by:gracewild
ID: 21813033
raptorjb007: Thanks for your reply.

"The second one is policing, this is a simple bandwidth limit applied outbound on an interface for traffic you define, all traffic above the limit is dropped."

Would I then be correct in assuming that incoming traffic from the internet or ftp from within our firewall would not be limited?

So Johnny sitting on the downstream side of the firewall downloads large file from the internet.  Is that technically 'incoming' since it was from the internet, or is that technically outbound, since the request came from here?
0
 
LVL 6

Expert Comment

by:raptorjb007
ID: 21813317
With regards to a host on the inside of your firewall downloading a file from a server on the outside, the connection would be initiated outbound, but the traffic flow, the actual data from the file download would be considered inbound traffic as far as policing is concerned..
0
 

Author Closing Comment

by:gracewild
ID: 31468321
Thank you for letting me know what I'm into.
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

On Feb. 28, Amazon’s Simple Storage Service (S3) went down after an employee issued the wrong command during a debugging exercise. Among those affected were big names like Netflix, Spotify and Expedia.
This article is in regards to the Cisco QSFP-4SFP10G-CU1M cables, which are designed to uplink/downlink 40GB ports to 10GB SFP ports. I recently experienced this and found very little configuration documentation on how these are supposed to be confi…
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …
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…

671 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