Configuration: Traffic Shaping Policies page allows
you to add traffic-shaping policies. The default policies are adequate for most
installations and cannot be edited or deleted (except for the
policies). However, if you have special requirements, new polices can be added
Figure 1. Traffic
Shaping Policies Page
Create button takes you to the
Policy page, which has the following fields (some of which are
hidden by default, but can be revealed with the
Advanced Options button):
Figure 2. Create
- Name--The name of
the new policy. Must be unique.
Priority--This can be the same as an existing priority value or can be a
custom value between 1 and 256. A connection with a priority of 256 will get
256 times the bandwidth share as a connection with a priority of 1.
- Set ICA
Priorities--If this policy will be used for Citrix XenApp/XenDesktop
traffic, the traffic’s internal priority values can be mapped to
- Optimize for
Voice--If checked, this policy will have effectively infinite priority.
This is highly undesirable for most traffic, since it will prevent meaningful
traffic shaping and will cause data starvation for other traffic if there is
enough “optimized for voice” traffic to fill the link. Use only for VoIP, and
always use in conjunction with a bandwidth limit on the policy (for example,
50% of the link speed).
Diffserv/TOS--Sets the Diffserv field of matching traffic to the
indicated value, informing downstream routers of the traffic priority.
- Set ICA
Diffserv/TOS--As above, but allows the Diffserv field to be set
differently depending on the priority field within the ICA data stream. Has no
effect on non-ICA traffic.
Bandwidth--Prevents the traffic from this policy from exceeding a
specified percentage of link bandwidth, or a specified absolute rate. Because
this limits performance, it is rarely used except with voice traffic.
- Editing policies is
essentially identical to creating new ones.