Do you know Cisco'c Content Services Gateway (CSG)? Cisco create strange device. I believe, that engineers create some more, than they thought. As usual, such thing has a lot of issues and problems. But together with SCE it can change our view about SP's services to end users.
First of all, how we can run this device? Unlike many other Cisco's product, charging system can't work without external parts. If you have Cisco GGSN, than this system can connect by Diameter DCCA to billing system. But in most cases you don't have all the system. For example, you have GGSN from other vendor. Or you don't use GGSN, may be you systems integrator or xDSL ISP.
I will publish several articles about my experience with CSG testing, implementation and maintaining.
First of all, let create lab. We need in RADIUS client, GTP' (gtp prime) server (or Quota/BMA server), client side (traffic generator from user side), server side (response part).
From my experience, city with size less than 1 million people from point of view of small mobile operator have approximately 400-600 RADIUS accounting events per second and about 30000-60000 active GPRS (or PPP for CDMA) sessions. Our solution must simulate this city. You can easily predict needed load for you environment from this data.
We can use some good and expensive testing tools, but I don't have such :) So my goal - use free tools for it.
Firstly, we have to describe all parts of our solution:
1. RADIUS client - use radclient from freeradius, shell scripts, and SeaGull (http://gull.sourceforge.net) traffic generator for simulate load
2. GTP' server (Quota/BMA server) - server simulator from http://ipantenna.com
3. Traffic generator client side - SeaGull traffic generator, Siege http traffic generator
4. Traffic generator server side - Web server, FTP server and any other server (which protocol we will test).
In next posts I will describe all parts of this lab and we will install and configure it all.
First of all, how we can run this device? Unlike many other Cisco's product, charging system can't work without external parts. If you have Cisco GGSN, than this system can connect by Diameter DCCA to billing system. But in most cases you don't have all the system. For example, you have GGSN from other vendor. Or you don't use GGSN, may be you systems integrator or xDSL ISP.
I will publish several articles about my experience with CSG testing, implementation and maintaining.
First of all, let create lab. We need in RADIUS client, GTP' (gtp prime) server (or Quota/BMA server), client side (traffic generator from user side), server side (response part).
From my experience, city with size less than 1 million people from point of view of small mobile operator have approximately 400-600 RADIUS accounting events per second and about 30000-60000 active GPRS (or PPP for CDMA) sessions. Our solution must simulate this city. You can easily predict needed load for you environment from this data.
We can use some good and expensive testing tools, but I don't have such :) So my goal - use free tools for it.
Firstly, we have to describe all parts of our solution:
1. RADIUS client - use radclient from freeradius, shell scripts, and SeaGull (http://gull.sourceforge.net) traffic generator for simulate load
2. GTP' server (Quota/BMA server) - server simulator from http://ipantenna.com
3. Traffic generator client side - SeaGull traffic generator, Siege http traffic generator
4. Traffic generator server side - Web server, FTP server and any other server (which protocol we will test).
In next posts I will describe all parts of this lab and we will install and configure it all.
1 comment:
Hello Roman,
Could you recommend manuals for CMX studying?
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