FibeAir IP-20C/S/E
User Guide
Ceragon Proprietary and Confidential
Page 415 of 597
17.1.3.5 Co
nfiguring a Service’s CoS Mode and Default CoS (CLI)
The CoS mode determines whether or not frames passing through the service
have their CoS modified at the service level. The CoS determines the priority
queue to which frames are assigned.
The CoS of frames traveling through a service can be modified on the interface
level, the service point level, and the service level. The service level is the
highest priority, and overrides CoS decisions made at the interface and service
point levels. Thus, by configuring the service to apply a CoS value to frames in
the service, you can define a single CoS for all frames traveling through the
service.
To set a service’s CoS mode, go to service view for the service and enter the
following command:
service[SID]>service cos-mode set cos-mode <cos-mode>
If the CoS mode is set to
default-cos
, you must define the Default CoS. Use the
following command to define the Default CoS:
service[SID]>service default-cos set cos <cos>
Table 114: Ethernet Service CoS Mode CLI Parameters
Parameter
Input
Type
Permitted
Values
Description
cos-mode
Variable
default-cos
preserve-sp-
cos-decision
default cos - Frames passing through the service
are assigned the default CoS defined below. This
CoS value overrides whatever CoS may have
been assigned at the service point or interface
level.
preserve-sp-cos-decision - The CoS of frames
passing through the service is not modified by the
service.
cos
Number
0
–
7
This value is assigned to frames at the service level
if cos-mode is set to default-cos. Otherwise, this value
is not used, and frames retain whatever CoS value
they were assigned at the service point or logical
interface level.
Examples
The following commands configure Service 10 to assign a CoS value of 7 to
frames traversing the service:
service[10]>service cos-mode set cos-mode default-cos
service[10]>service default-cos set cos 7
The following command configures Service 10 to preserve the CoS decision
made at the interface or service point level for frames traveling through the
service:
service[10]>service cos-mode set cos-mode preserve-sp-cos-
decision
