Forwarding-Class To Queue Id Mapping; Fc To Queue Id Mapping For 7210 Sas-E And 7210 Sas-D; Table 31: Forwarding Classes - Alcatel-Lucent 7210 SAS Series Quality Of Service Manual

CPU Queues
along its path to a destination egress point. 7210 SAS devices support eight (8) forwarding classes
(Table

Table 31: Forwarding Classes

FC-ID
7
6
5
4
3
2
1
0
Note that
behavior, in terms of ingress marking interpretation and egress marking, can be changed by QoS
Policies.

Forwarding-Class To Queue ID Mapping

There are 8 forwarding classes supported on 7210 SAS devices. Each of these FC is mapped to a
specific queue. By mapping FC to different queues the differential treatment is imparted to various
classes of traffic.

FC to Queue ID mapping for 7210 SAS-E and 7210 SAS-D

On these platforms there are only 8 queues available at the port level. These 8 queues are created
by default per port. Users cannot create or delete the queues or the queue ID. Only the queue
parameters can be changed. The queue-id is not a configurable entity and queue ID 1 to 8 are, by
default, used to identify these 8 queues available on the port. The 8 queues are available both on
Page 80 7210 SAS D, E, K OS Quality of Service Guide
31).
FC Name
Designa-
tion
Network NC
Control
High-1
Expedited
High-2
Low-1
Assured
Low-2
Best Effort
Table 31 presents the default definitions for the forwarding classes. The forwarding class
FC DiffServ
Name
NC2
H1 NC1
EF EF
H2 AF4
L1 AF2
AF AF1
L2 CS1
BE BE
Notes
Intended for network control traffic.
Intended for a second network control
class or delay/jitter sensitive traffic.
Intended for delay/jitter sensitive traffic.
Intended for delay/jitter sensitive traffic.
Intended for assured traffic. Also is the
default priority for network management
traffic.
Intended for assured traffic.
Intended for BE traffic.