Solved

Implementing QoS without QoS-capable switches on remote site (Juniper SSG)

Posted on 2013-06-19
3
620 Views
Last Modified: 2013-06-24
Dear experts,

I have a situation where we have a main site (data center) and several remote sites (hub sites).


All sites have Juniper SSG firewall (5,20,140,520) with site-to-site VPN tunnels in between the DC and the remote sites.

In the data center all hardware server, OS, switches and firewall is fully QoS capable.
In the remote sites, some have low-cost netgear switches which have no or only basic QoS functionality.

I have the need to prioritize traffic since we are migrating to a VMWare Mirage platform for the clients while also we need to guarantee traffic for Oracle and client access gets priority over web/mail traffic.

My question basically is which of the below approaches is required or even an alternative please ?

Thanks in advance !

1) I need to implement QoS everywhere: Client -> switch -> firewall -> VPN -> firewall -> switch -> server
2) I need to implement QoS everywhere except the client: switch -> firewall -> VPN -> firewall -> switch
3) I can implement QoS only between the firewall (based on policy/port traffic) and the queue will be handled by the firewall's
0
Comment
Question by:ulensr
[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
3 Comments
 
LVL 12

Accepted Solution

by:
ryan80 earned 250 total points
ID: 39260168
First off, unless you have a private line/ MPLS there will be no QOS over the internet. once you hit the ISP there will be no qos.

now within your network you can implement qos as needed.  If you feel that there will be contention on the switch you can replace it with something that can handle qos. it really depends on how much traffic you have and how the switch handles it. However I would imagine that the bottle neck is going to be WAN connection not the switch, so I would treat that as secondary.

I have not worked with Junipers before but a quick search shows it to be fairly straight forward. http://www.howtonetworking.com/Routers/ssg4.htm
http://hydra.ck.polsl.pl/~helot/ipad/DayOne-Book/DO_Deploying_Basic_QoS.pdf

You should be able to set the priority of the traffic higher or give it a specific amount of bandwidth.
0
 

Author Closing Comment

by:ulensr
ID: 39270472
Thanks for your answer; although this doesn't completely solve my issue, your advice shows that technically there we do not meet the requirements.

With the approach of having LAN QoS as you adviced I think I can atleast prioritize the inside traffic of the data center and whatever is going outside.

Many thanks
0
 
LVL 12

Expert Comment

by:ryan80
ID: 39271353
You  can certainly prioritize the traffic at the egress point, which will send out the important traffic first if there is contention, but once on the internet there is no guarantee.
0

Featured Post

NEW Veeam Agent for Microsoft Windows

Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!

Question has a verified solution.

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

Quality of Service (QoS) options are nearly endless when it comes to networks today. This article is merely one example of how it can be handled in a hub-n-spoke design using a 3-tier configuration.
A 2007 NCSA Cyber Security survey revealed that a mere 4% of the population has a full understanding of firewalls. As business owner, you should be part of that 4% that has a full understanding.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

695 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