Configuring Coloring
The Coloring Policy is used with Application Control. This facility modifies the TOS or DiffServ field in the IP header according to the type and criticality of the packet.
The default mode is Color-Blind (all packets are processed as if they were uncolored).
| 1 | In the System provisioning Toolbar, select  Coloring: |
| 2 | By clicking on the New button  ,
the creation window of a new coloring rule is displayed. |
Coloring directory with TOS and DiffServ selections:
This window defines the coloring policies to apply to the Bridge WANs (you can create as many Coloring rules as you want). The coloring parameters specify the type of service (ToS) or DSCP values by traffic type and criticality level. They include:
| • | Name: to identify the coloring policy (string of characters). By default , the name 'none' is defined and is associated with an unspecified service type. The name is used to identify the Coloring policy. |
| • | Service type: to select the type of coloring policy to set up. The service is selected from several options. The values offered are: |
| • | TOS: the TOS field of the frame is set to the value specified by the Code point setting. It then contains the value of the IP PRECEDENCE and the TOS specified for the Class of Service. |
| • | DiffServ: "Differentiated Service" type service. The TOS field of the frame is set to the value specified by the PHB Group (DSCP) setting, in accordance with RFC 2474 (definition of the Differentiated Services Fields (DS Field) in the IPv4 and IPv6 headers), RFC 2597 (Assured Forwarding PHB group), RFC 2598 (Express Forwarding PHB group). |
| • | unspecified: not specified |
| • | a Coloring zone: to define or modify the coloring for type of Traffic and Criticality level: |
| • | PHB Group (DSCP): when DiffServ is the selected Service Type, the value for each peer (type of Traffic and criticality level) is selected from a drop-down list |
| • | Precedence/TOS (b0-b7): when ToS is the selected Service Type |
| • | a display zone in the form of a table corresponding to the data previously entered. |
| 3 | Click Apply to validate your settings and then Update in the main Toolbar to refresh the configuration. |
| 4 | Refer to "Configuring the WAN(s)" to apply any defined Coloring Policies to the Bridge WAN interfaces of appliances configured in Bridge Mode or Bridge/Router Mode. |
Configuration: DiffServ and TOS default settings
|
Type of traffic |
Criticality level |
Service type |
PHB group |
DSCP value |
TOS value |
|---|---|---|---|---|---|
|
Real time |
Top |
Express Forwarding |
EF |
101110 |
6 |
|
High |
|
EF |
101110 |
6 |
|
|
Medium |
|
EF |
101110 |
6 |
|
|
Low |
|
EF |
101110 |
6 |
|
|
Transactional |
Top |
Assured Forwarding |
AF11 |
001010 |
3 |
|
High |
|
AF12 |
001100 |
3 |
|
|
Medium |
|
AF21 |
001100 |
3 |
|
|
Low |
|
AF22 |
001100 |
3 |
|
|
Background |
Top |
Best Effort |
BE |
000000 |
0 |
|
High |
|
BE |
000000 |
0 |
|
|
Medium |
|
BE |
000000 |
0 |
|
|
Low |
|
BE |
000000 |
0 |
By default, coloring is set to 'none' and the Service Type to 'unspecified'.
The entered values should correspond to the Class of Service of the Operator.