Class - Juniper JUNOS OS 10.3 - SOFTWARE Manual

class

Syntax
Hierarchy Level
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Description
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Copyright © 2010, Juniper Networks, Inc.
class class-name queue-num queue-number priority ( high | low );
[edit class-of-service forwarding-classes]
Statement introduced in Junos OS Release 9.0 for EX Series switches.
Configure up to 16 forwarding classes with multiple forwarding classes mapped to single
queues. If you want to configure up to eight forwarding classes with one-to-one mapping
to output queues, use the
class-of-service forwarding-classes]
On EX8200 switches, you can assign a fabric priority to a forwarding class. The fabric
priority determines scheduling priority of packets ingressing the switch fabric. In addition,
for interfaces on the 40-port SFP+ line card, the fabric priority determines whether
packets are sent to the high or low priority queue for ingressing the port group. The primary
use of this option is to prevent high priority input traffic from being dropped due to
congestion on the port group of a 40-port SFP+ line card.
—Name of forwarding class.
class-name
priority (high | low) —(Optional) (EX8200 switches only) Fabric priority.
Values: or
high low
Default:
low
queue-num queue-number
Range: 0 through 7
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Example: Configuring CoS on EX Series Switches on page 3173
Defining CoS Forwarding Classes (CLI Procedure) on page 3208 or Defining CoS
Forwarding Classes (J-Web Procedure) on page 3208
Configuring CoS Traffic Classification for Ingress Queuing on 40-port SFP+ Line Cards
(CLI Procedure) on page 3225
Chapter 112: Configuration Statements for CoS
statement instead of the
queue
hierarchy level.
—Output queue number.
statement at the
class [edit
3241