we are trying to implement QoS for application on LTM, how can this be done on LTM 11.4.1? Thx

You can create bandwidth control policy and apply to VS. http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos-implementations-11-4-0/9.html

what about if I want to marking an application? for example www.example.com af21? Thx again.

This can be configured under Acceleration ›› Bandwidth Controllers ›› myBWC >> Dynamic Properties(Enable) >> IP Marking (DSCP & ECN)(Specify)

Thx, so created "myBWC" in IP Marking (DSCP & ECN) change to AF21, and apply "myBWC to virtual server. is that all I need or do I need to use iRule as well. when CLIENT_ACCEPTED { if { [IP::tos] == 72 } { pool example_80

how to implement QoS on LTM 11.4.1

17 Replies

kunjan
Nimbostratus
Jun 13, 2014
You can create bandwidth control policy and apply to VS.

http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos-implementations-11-4-0/9.html
KJ_50941
Nimbostratus
Jun 13, 2014
what about if I want to marking an application? for example www.example.com af21?

Thx again.
- volodh_214395
  Nimbostratus
  Jun 04, 2016
  You can create tcp profile and specify there IP ToS or Link QOS setting. Than set this profile to your virtual server -Protocol Profile (Client) and / or Protocol Profile (Server) options. IP ToS is used for layer 3 marking. Link QOS is used for layer 2 marking. Since you want to mark using DSCP you need to use IP ToS = 72. Which is equivalent of dscp af21.
kunjan
Nimbostratus
Jun 13, 2014
This can be configured under Acceleration ›› Bandwidth Controllers ›› myBWC >> Dynamic Properties(Enable) >> IP Marking (DSCP & ECN)(Specify)
- KJ_50941
  Nimbostratus
  Jun 13, 2014
  Thx, so created "myBWC" in IP Marking (DSCP & ECN) change to AF21, and apply "myBWC to virtual server. is that all I need or do I need to use iRule as well. when CLIENT_ACCEPTED { if { [IP::tos] == 72 } { pool example_80
kunjan_118660
Cumulonimbus
Jun 13, 2014
This can be configured under Acceleration ›› Bandwidth Controllers ›› myBWC >> Dynamic Properties(Enable) >> IP Marking (DSCP & ECN)(Specify)
- KJ_50941
  Nimbostratus
  Jun 13, 2014
  Thx, so created "myBWC" in IP Marking (DSCP & ECN) change to AF21, and apply "myBWC to virtual server. is that all I need or do I need to use iRule as well. when CLIENT_ACCEPTED { if { [IP::tos] == 72 } { pool example_80
KJ_50941
Nimbostratus
Jun 13, 2014
Thx, so created "myBWC" in IP Marking (DSCP & ECN) change to AF21, and apply "myBWC to virtual server. is that all I need or do I need to use iRule as well. when CLIENT_ACCEPTED { if { [IP::tos] == 72 } { pool example_80
kunjan
Nimbostratus
Jun 14, 2014
The irule mentioned is to select the pool based on incoming packet DSCP. What is the requirement on QoS?
- KJ_50941
  Nimbostratus
  Jun 14, 2014
  Marking specific applications for af21, and another for af41 and af43. how do I do That. Thank you in advanced.
kunjan_118660
Cumulonimbus
Jun 14, 2014
The irule mentioned is to select the pool based on incoming packet DSCP. What is the requirement on QoS?
- KJ_50941
  Nimbostratus
  Jun 14, 2014
  Marking specific applications for af21, and another for af41 and af43. how do I do That. Thank you in advanced.
kunjan
Nimbostratus
Jun 17, 2014
Try using iRule;

To set QoS af41 towards the client

when CLIENT_ACCEPTED { IP::tos 72 }

To set QoS af41 towards the server

when SERVER_CONNECTED { IP::tos 72 }
KJ_50941
Nimbostratus
Jun 18, 2014
do I need to modify pool ? or irule alone will set the marking for Af21?

IP ToS to Client IP ToS to Server
kunjan
Nimbostratus
Jun 18, 2014
No need to modify the pool if irule used, which gives the flexibility to apply qos based on traffic coming in.