Class
of Service Interfaces |
Interface Name
(See the interface naming conventions in the JUNOS Software with Enhanced Services Interfaces and Routing Configuration Guide.)
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Lists the names of physical and logical interfaces configured
on the system.
Allows you to edit CoS component assignments to physical and
logical interfaces.
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To edit an interface's CoS assignments, click the interface.
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Class of Service Overview
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Displays the CoS components assigned to a particular interface—for
example, information about DSCP classifiers, EXP classifiers, or DSCP
rewrite rules.
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None.
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Add
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Allows you to add a CoS service to a physical interface.
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To add a CoS service to a physical interface, click Add.
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Delete
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Removes CoS services assigned to a specific interface.
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To remove CoS services assigned to a specific interface, locate
the interface name, click the check box next to it, and click Delete.
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Add
CoS Service to a Physical Interface/Edit CoS Physical Interface |
Physical Interface Name
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Specifies the name of a physical interface.
Allows you to assign CoS components to a set of interfaces at
the same time.
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To specify an interface for CoS assignment, type its name in
the Physical Interface Name box.
To specify a set of interfaces for CoS assignment, use the wildcard
character (*)—for example, ge-0/*/0.
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Scheduler Map
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Specifies a predefined scheduler map for the physical interface.
A scheduler map enables the physical interface to have more
than one set of output queues.
Note:
For 4-port Fast Ethernet ePIMs, if you apply a CoS scheduler
map on outgoing (egress) traffic, the router does not divide the bandwidth
appropriately among the CoS queues. As a workaround configure enforced
CoS shaping on the ports.
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To specify a map for an interface, select it from the Scheduler
Map list.
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Add
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Allows you to add a CoS service to a logical interface on a
specified physical interface.
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To add a CoS Service to a logical interface, click Add.
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Add
CoS Service to a Logical Interface Unit/Edit CoS Logical Interface
Unit |
Logical Interface Unit Name
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Specifies the name of a logical interface.
Allows you to assign CoS components to all logical interfaces
configured on a physical interface at the same time.
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To specify an interface for CoS assignment, type its name in
the Logical Interface Unit Name box.
To assign CoS services to all logical interfaces configured
on this physical interface, type the wildcard character (*).
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Scheduler Map
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Specifies a predefined scheduler map for this interface.
Note:
You can configure either a scheduler map or a virtual channel
group on a logical interface, not both.
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To assign a scheduler map to the interface, select it from the
list.
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Forwarding Class
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Assigns a predefined forwarding class to incoming packets on
a logical interface.
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To assign a forwarding class to the interface, select it.
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Virtual Channel Group
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Applies a virtual channel group to a logical interface.
Applying a virtual channel group creates a set of eight queues
for each virtual channel in the group.
Note:
You can configure either a scheduler map or a virtual channel
group on a logical interface, not both.
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To specify a virtual channel group for the interface, select
it from the list.
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Classifiers
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Allows you to apply classification maps to a logical interface.
Classifiers assign a forwarding class and loss priority to an
incoming packet based on its CoS value.
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To assign a classification map to the interface, select an appropriate
classifier for each CoS value type used on the interface.
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Rewrite Rules
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Allows you to apply rewrite rule configurations to a logical
interface.
Rewrite rules rewrite the CoS values in an outgoing packet based
on forwarding class and loss priority.
You can choose to apply your own rewrite rule or a default one.
The default rewrite assignments are based on the default bit definitions
of DSCP, DSCP IPv6, MPLS EXP, and IP precedence.
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To apply a rewrite rule configuration to the interface, select
a rule for each CoS value type used on the interface.
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