This section gives an overview of Quality of Service (QoS) and explains the QoS features available from the Quality of Service menu page—Differentiated Services and Class of Service.
Quality of Service Overview
In a typical switch, each physical port consists of one or more queues for transmitting packets on the attached network. Multiple queues per port are often provided to give preference to certain packets over others based on user-defined criteria. When a packet is queued for transmission in a port, the rate at which it is serviced depends on how the queue is configured and possibly the amount of traffic present in the other queues of the port. If a delay is necessary, packets get held in the queue until the scheduler authorizes the queue for transmission. As queues become full, packets have no place to be held for transmission and get dropped by the switch.
QoS is a means of providing consistent, predictable data delivery by distinguishing between packets that have strict timing requirements from those that are more tolerant of delay. Packets with strict timing requirements are given "special treatment" in a QoS capable network. With this in mind, all elements of the network must be QoS-capable. The presence of at least one node which is not QoS-capable creates a deficiency in the network path and the performance of the entire packet flow is compromised.
To display the Quality of Service menu page, click Quality of Servicein the tree view. The two types of QoS available are links on this menu page. These links are:
The QoS feature contains Differentiated Services (DiffServ) support that allows traffic to be classified into streams and given certain QoS treatment in accordance with defined per-hop behaviors.
Standard IP-based networks are designed to provide "best effort" data delivery service. "Best effort" service implies that the network delivers the data in a timely fashion, although there is no guarantee that it will. During times of congestion, packets may be delayed, sent sporadically, or dropped. For typical Internet applications, such as e-mail and file transfer, a slight degradation in service is acceptable and in many cases unnoticeable. Conversely, any degradation of service has undesirable effects on applications with strict timing requirements, such as voice or multimedia.
Defining DiffServ
To use DiffServ for QoS, the web pages accessible from the Differentiated Services menu page must first be used to define the following categories and their criteria:
Class: create classes and define class criteria
Policy: create policies, associate classes with policies, and define policy statements
Service: add a policy to an inbound interface
Packets are classified and processed based on defined criteria. The classification criteria is defined by a class. The processing is defined by a policy's attributes. Policy attributes may be defined on a per-class instance basis, and it is these attributes that are applied when a match occurs. A policy can contain multiples classes. When the policy is active, the actions taken depend on which class matches the packet.
Packet processing begins by testing the class match criteria for a packet. A policy is applied to a packet when a class match within that policy is found.
The Differentiated Services menu page contains links to the various Diffserv configuration and display features.
To display the page, clickQuality of Service® Differentiated Services in the tree view. The Differentiated Services menu page contains links to the following features:
Use theDiffserv Configuration page to display DiffServ General Status Group information, which includes the current administrative mode setting as well as the current and maximum number of rows in each of the main DiffServ private MIB tables.
To display thepage, click Quality of Service® Differentiated Services® Diffserv Configuration in the tree view.
Figure 12-1. Diffserv Configuration
The Diffserv Configuration page contains the following fields:
Diffserv Admin Mode — Turns admin mode on and off. While disabled, the DiffServ configuration is retained and can be changed, but it is not active. While enabled, Differentiated Services are active.
MIB Table
Class Table — Displays the current and maximum number of rows of the class table.
Class Rule Table — Displays the current and maximum number of rows of the class rule table.
Policy Table — Displays the current and maximum number of rows of the policy table.
Policy Instance Table — Displays the current and maximum number of rows of the policy instance table.
Policy Attributes Table — Displays the current and maximum number of rows of the policy attributes table.
Service Table — Displays the current and maximum number of rows of the service table.
Changing Diffserv Admin Mode
Open the Diffserv Configuration page.
Turn Diffserv Admin Mode on or off by selecting Enable or Disable from the drop-down
menu.
Click Apply Changes.
The Diffserv Admin Mode is changed, and the device is updated.
Displaying MIB Tables Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Class Configuration
Use theDiffserv Class Configuration page to add a new Diffserv class name, or to rename or delete an existing class.
To display thepage, click Quality of Service® Differentiated Services® Class Configuration in the tree view.
Figure 12-2. Diffserv Class Configuration
The Diffserv Class Configuration page contains the following fields:
Class Name — Selects a class name to rename or delete. Click Add to set up a new class name.
Rename Class — Renames the class displayedwhen the box is checked and a new name is entered.
Class Type — Lists all of the class types. Currently the hardware supports only the Class Type value All.
All — All the various match criteria defined for the class should be satisfied for a packet match. All signifies the logical AND of all the match criteria.
Remove — Deletes the displayed class name when checked and Apply Changes is clicked.
Renaming a Class Configuration
Open the Class Configuration page.
Select the class name to be changed from the Class Name drop-down menu.
Click the Rename Class box and type the new name in the adjacent field.
Click Apply Changes.
The class configuration is renamed, and the device is updated.
Adding a Diffserv Class Configuration
Open the Class Configuration page.
Click Add.
The Add Diffserv Class page displays.
Figure 12-3. Add Diffserv Class
Type the new name in the Class Name field.
Click Apply Changes.
The Class Name is added, and the device is updated.
Removing a Class Configuration
Open the Class Configuration page.
Select the class name to be deleted from the Class Name drop-down menu.
Check the Remove check box.
Click Apply Changes.
The associated class configuration is removed, and the device is updated.
Displaying Class Configurations
Open the Class Configuration page.
Click Show All.
All class configurations display on the Diffserv Class Summary page.
Figure 12-4. Diffserv Class Summary
Adding a Class Configuration Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Class Criteria
Use theDiffserv Class Criteria page to define the criteria to associate with a DiffServ class. As packets are received, these DiffServ classes are used to prioritize packets.
To display thepage, click Quality of Service® Differentiated Services® Class Criteria in the tree view.
Figure 12-5. Diffserv Class Criteria
The Diffserv Class Criteria page contains the following fields:
Class Name — Selects the class name for which you are specifying criteria.
Class Type — Displays the class type. The only configurable class type supported is All.
Match Attributes
Use the following fields to match packets to a class. Click the check box for each field to be used as a criterion for a class, and enter data in the related field. You can have multiple match criteria in a class. The logic is a Boolean "logical-and" for this criteria.
Source IP Address — Requires a packet's source port IP address to match the address listed here.
Subnet Mask — The subnet mask of the source IP address. This field is required when Source IP Address is checked.
Destination IP Address — Requires a packet's destination port IP address to match the address listed here.
Subnet Mask — The subnet mask of the destination IP address. This field is required when Destination IP Address is checked.
Source L4 Port— Requires a packet's TCP/UDP source port to match the port listed here. Select one of the following options:
Select From List — Click to select from a list of well known source ports to which packets are matched.
Match to Port — Click to add a user-defined Port ID to which packets are matched.
Destination L4 Port — Requires a packet's TCP/UDP destination port to match the port listed here. Select one of the following:
Select From List — Select from a list of well known destination ports to which packets are matched.
Match to Port — Click to add a user-defined Port ID to which packets are matched.
Protocol — Requires a packet's protocol to match the protocol listed here. Select one of the following:
Select from List — Select from the drop-down list of protocols.
Match to Protocol ID — Enter a protocol ID to which packets are matched.
EtherType — Requires a frames' Ethertype to match the Ethertype listed here. Select one of the following:
Select from List — Select from the drop-down list of Ethertypes.
Match to Port — Enter an Ethertype ID to which packets are matched.
Class of Service (CoS) — Requires a packet's CoS for incoming packets to match the CoS entered here.
Source MAC Address — Requires a packet's Source MAC Address for incoming packets to match the address entered here.
Source MAC Mask — Specifies the Source MAC address wildcard mask. Wild card masks determine which bits are used and which bits are ignored. A wild card mask of 255.255.255.255 indicates that no bit is important. A wildcard of 0.0.0.0 indicates that all bits are important. This field is required when Source MAC Address is checked.
Destination MAC Address — Requires a packet's Destination MAC Address for incoming packets to match the address entered here.
Destination MAC Mask — Specifies the Destination MAC address wildcard mask. Wild card masks determine which bits are used and which bits are ignored. A wild card mask of 255.255.255.255 indicates that no bit is important. A wildcard of 0.0.0.0 indicates that all bits are important. This field is required when Destination MAC Address is checked.
VLAN ID — Requires a packet's VLAN ID for incoming packets to match the VLAN ID entered here.
Secondary VLAN ID — Requires a packet's secondary VLAN ID for incoming packets to match the VLAN ID entered here.
Reference Class — Selects a class to start referencing for criteria. Select the Add Diffserv Class check box, then select a previously configured Diffserv class from the related drop-down menu:
Service Type Criteria
Click to select one of the following three Match fields to use in matching packets to class criteria:
IP DSCP — Matches the packet's DSCP to the class criteria's when selected. Either select the DSCP type from the drop-down menu or enter a DSCP value to match.
IP Precedence — Matches the packet's IP Precedence value to the class criteria's when selected and a value is entered.
IP TOS Bits— Matches the packet's Type of Service bits in the IP header to the class criteria's when selected and a value is entered.
Match Every — Requires a packet to match every criterion when Match Every is checked.
Defining Class Criteria
Open the Diffserv Class Criteria page.
Select the Class Name from the drop-down menu for which you're entering matching
attributes.
Select which attributes are to be matched for this class, and specify their criteria.
Click Apply Changes.
The criteria are added to this class, and the device is updated.
Configuring Class Criteria with CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Policy Configuration
Use theDiffserv Policy Configuration page to associate a collection of classes with one or more policy statements.
To display thepage, click Quality of Service® Differentiated Services® Policy Configuration in the tree view.
Figure 12-6. Diffserv Policy Configuration
The Diffserv Policy Configuration page contains the following fields:
Policy Name — Selects the policy name to be associated with the class(es).
Rename Policy — Renames a policy when box is checked, a new name is entered, and Apply Changes is clicked.
Class List — Configures class association for the policy.
Add a Class — Associates the class selected in the drop-down menu to a policy.
Remove a Class — Removes the selected class from the policy.
Remove — Deletes the selected policy name from the device.
Associating a Class to a Policy or Removing the Association
Open the Diffserv Policy Configuration page.
Select the Policy Name to associate with the class.
In Class List field, select the check box, then click the Add a Class or Remove a Class radio
button and select the class from the related drop down menu
Use Add a Class to associate a class with this policy. Use Remove a Class to remove the class from this policy.
Select the class to be affected from the relevant drop-down menu.
Click Apply Changes.
The modified policy is saved, and the device is updated.
Renaming a Policy
Open the Diffserv Policy Configuration page.
Select the Policy Name to be renamed.
Rename policy by checking Rename Policy and entering the new name in the adjacent field.
The modified policy name is saved, and the device is updated.
Adding a New Policy Name
Open the Diffserv Policy Configuration page.
Click Add.
The Add Diffserv Policy page displays.
Figure 12-7. Add Diffserv Policy
Enter the new Policy Name.
Click Apply Changes.
The new policy is saved, and the device is updated.
Displaying the Policy Summary
Open the Policy Configuration page.
Click Show All.
The Diffserv Policy Summary page displays all policy names, their policy types, and their member classes.
Figure 12-8. Diffserv Policy Summary
Removing a Policy Configuration
Open the Diffserv Policy Configuration page.
Select the policy name to be deleted from the Policy Name drop-down menu.
Check the Remove check box.
Click Apply Changes.
The associated policy configuration is removed, and the device is updated.
Defining Policy Configurations Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Policy Class Definition
Use theDiffserv Policy Class Definition page to associate a class to a policy, and to define attributes for that policy-class instance.
To display thepage, click Quality of Service® Differentiated Services® Policy Class Definition in the tree view.
Figure 12-9. Diffserv Policy Class Definition
The Diffserv Policy Class Definition page contains the following fields:
Policy Name — Selects the policy to associate with a member class from a drop-down menu.
Member Classes — Selects the member class to associate with this policy name from a drop-down menu.
Drop Packets — Select this field to drop packets for this policy-class.
Assign Queue — Assigns the packets of this policy-class to a queue. The valid range is 0–6.
Traffic Conditioning — Assigns a type of traffic conditioning when checked and a condition is selected from the drop-down menu. This field affects how traffic that matches this policy-class is treated. Choose from None, Marking, and Policing. When Marking or Policing is selected, the screen changes to display related fields.
None: Specifies no traffic conditioning occurs during packet processing. This is the default.
Marking: Allows you to mark one of the following fields in the packet: IP DSCP, IP Precedence, or Class of Service. For information on the fields that display when Marking is selected, see "Packet Marking Traffic Condition."
Policing: Allows you to configure how policing is performed, as well as configure what happens to packets that are considered conforming and non-conforming. For more information on the fields that display when Policing is selected, see "Policing Traffic Condition."
Redirect Interface — Displays whether Redirect Interface applies to this policy-class, and specifies the interface or LAG used.
Flow Based Mirroring — Displays whether Flow Based Mirroring applies to this policy-class, and specifies the interface or LAG used.
Defining a Policy-Class Instance
Open the Diffserv Policy Class Definition page.
Select a policy and member class to associate.
Specify attributes to apply to this policy-class instance using the remaining fields on the page.
Click Apply Changes.
The policy-class is defined, and the device is updated.
Packet Marking Traffic Condition
When Marking is chosen as the Traffic Condition, the following Packet Marking page displays.
Figure 12-10. Policy Class Definition - Packet Marking
The Diffserv Policy - Packet Marking page contains the following fields:
Policy Name— Displays the policy associated with a member class.
Member Classes — Displays the member class associated with this policy name.
You have the option of marking one of the following fields in the packet:
IP DSCP — Selects the IP DSCP to mark. Select from the drop down menu or enter directly in the User Value field.
IP Precedence — Selects the specified IP Precedence queue number to mark.
Class of Service — Selects the specified Class of Service queue number to mark.
Configuring Packet Marking for a Policy Class Instance
Select Marking from the Traffic Conditioning drop-down menu on the Diffserv Policy Class
Definition page.
The Packet Marking page displays as shown in Figure 12-10.
Select IP DSCP, IP Precedence, or Class of Service to mark for this policy-class.
Select or enter a value for this field.
Click Apply Changes.
The policy-class is defined, and the device is updated.
Policing Traffic Condition
When Policing is chosen as the Traffic Condition, the following Diffserv Policy - Policing page displays.
Figure 12-11. Policy Class Definition - Policing
The Diffserv Policy - Policing page contains the following fields:
Policy Name — Displays the policy for which policing is being configured.
Class Name — Displays the member class associated with this policy name.
Policing Style — Displays the style of policing being used.
Color Mode — Selects the type of color policing used. Choose Color Blind or Color Aware from the drop-down menu.
Conform Action Selector — Selects what happens to packets that are considered conforming (below the police rate). Options are Send, Drop, Mark CoS, Mark IP DSCP, Mark IP Precedence.
Violate Action — Selects what happens to packets that are considered non-conforming (above the police rate). Options are Send, Drop, Mark CoS, Mark IP DSCP, Mark IP Precedence.
Configuring Policing for a Policy-Class Instance
Select Policing from the Traffic Conditioning drop-down menu on the Diffserv Policy Class
Definition page.
The Diffserv Policy - Policing page displays as Figure 12-11 shows.
Check to select one or more policing criteria to use for this policy-class.
Select or enter a value for each field selected.
Click Apply Changes.
The following Policy Rate Configuration page displays.
Figure 12-12. Policy Rate Configuration
Enter the desired criteria values for Committed Rate and/or Committed Burst Size.
Click Apply Changes.
Policing is configured for the specified policy-class instance, and the device is updated.
Defining Policy Classes Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Service Configuration
Use theDiffserv Service Configuration page to activate a policy on a port.
To display thepage, click Quality of Service® Differentiated Services® Service Configuration in the tree view.
Figure 12-13. Diffserv Service Configuration
The Diffserv Service Configuration page contains the following fields:
Interface — Selects the interface (Unit/Port, LAG, or All) to be affected from drop-down menus.
Policy In — Selects the policy to be associated with the port from a drop-down menu.
Activating a Policy on a Port
Open the Diffserv Service Configuration page.
Select the interface from the drop-down menus.
Select the policy from the drop-down menu.
Click Apply Changes.
The policy is activated on the interface, and the device is updated.
Displaying Diffserv Service Summary
Open the Diffserv Service Configuration page.
Click Show All.
The Diffserv Service Summary page displays.
Figure 12-14. Diffserv Service Summary
Assigning a Policy to a Port Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Service Detailed Statistics
Use theDiffserv Service Detailed Statistics page to display packet details for a particular port and class.
To display thepage, click Quality of Service® Differentiated Services® Service Detailed Statistics in the tree view.
Figure 12-15. Diffserv Service Detailed Statistics
The Diffserv Service Detailed Statistics page contains the following fields:
Counter Mode Selector — Type of statistics to display. Packets is the only available type.
Interface — Selects the Unit and Port or LAG for which service statistics are to display.
Direction — Selects the direction of packets for which service statistics are to display.
Policy Name — Displays the policy associated with the selected interface.
Operational Status — Displays whether the policy is active or not on this interface.
Member Classes — Selects the member class for which octet statistics are to display.
Offered Packets — Displays how many packets match the policy.
Discarded Packets — Displays how many packets are dropped by the policy.
Displaying Service Statistics
Open the Diffserv Service Detailed Statistics page.
Complete the fields as needed.
Packet statistics display for the specified interface, direction, and class.
Configuring Service Statistics Using the CLI Command
For information about the CLI command that performs this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Class of Service
The Class of Service (CoS) queueing feature lets you directly configure certain aspects of switch queueing. This provides the desired QoS behavior for different types of network traffic when the complexities of DiffServ are not required. The priority of a packet arriving at an interface can be used to steer the packet to the appropriate outbound CoS queue through a mapping table. CoS queue characteristics that affect queue mapping , such as minimum guaranteed bandwidth, transmission rate shaping, etc., are user-configurable at the queue (or port) level.
Seven queues per port are supported. Although the hardware supports eight queues, one queue is always reserved for internal use by the stacking subsystem.
To display the page, clickQuality of Service® Class of Service in the tree view. The Class of Service menu page contains links to the following features:
Each port in the switch can be configured to trust one of the packet fields (802.1p, IP Precedence, or IP DSCP), or to not trust any packet's priority designation (untrusted mode). If the port is set to a trusted mode, it uses a mapping table appropriate for the trusted field being used. This mapping table indicates the CoS queue to which the packet should be forwarded on the appropriate egress port(s). Of course, the trusted field must exist in the packet for the mapping table to be of any use, so there are default actions performed when this is not the case. These actions involve directing the packet to a specific CoS level configured for the ingress port as a whole, based on the existing port default priority as mapped to a traffic class by the current 802.1p mapping table.
Alternatively, when a port is configured as untrusted, it does not trust any incoming packet priority designation and uses the port default priority value instead. All packets arriving at the ingress of an untrusted port are directed to a specific CoS queue on the appropriate egress port(s), in accordance with the configured default priority of the ingress port. This process is also used for cases where a trusted port mapping is unable to be honored, such as when a non-IP packet arrives at a port configured to trust the IP DSCP value.
Use theMapping Table Configuration page to define how class of service is assigned to a packet.
To display thepage, click Quality of Service® Class of Service® Mapping Table Configuration in the tree view.
The Trust Mode selected on the Mapping Table Configuration page affects how the page displays and the fields accessible from the page. There are three trust modes available from here:
Untrusted (None)
CoS(802.1P)
IP DSCP
CoS(802.1P) is the default mode, so this is the page that displays when Mapping Table Configuration is selected from the Class of Service menu page.
Figure 12-16. Mapping Table Configuration— CoS (802.1P)
CoS (802.1P) Trust Mode
The CoS (802.1P) Mapping Table Configuration page contains the following fields:
Interface — Selects the interface to which the class of service configuration is applied. Select a unit and port or LAG, or select Global to apply the class of configuration to all the interfaces.
Trust Mode — Selects the trust mode toapply. CoS (802.1P) is the default.
Class of Service — Lists each class of service on a separate line, so a separate queue can be assigned to each class of service.
Queue — Selects a queue for each Class of Service from the drop-down menu. Default queues are displayed initially.
Restore Defaults — Restores default queue values when checked and Apply Changes is clicked.
Configuring CoS (802.1P) Trust Mode
Open the Mapping Table Configurationpage.
Select the unit and port or LAGto be affected, or select Global to apply the settings to all
interfaces.
Select a Trust Mode.
Select a Queue to associate with each Class of Service.
Click Apply Changes.
Changes made are applied to the selected interfaces, and the device is updated.
Restoring Queue Defaults
Open the Mapping Table Configuration page.
Click the Restore Defaults check box.
Click Apply Changes.
Queues are returned to their defaults for each Class of Service, and the device is updated.
Configuring the IP DSCP Table
To access the DSCP Queue Mapping Table, click Quality of Service® Class of Service® Mapping Table Configuration in the tree view, and then click the DSCP Table link.
Figure 12-17. DSCP Queue Mapping Table
The DSCP Queue Mapping Table page contains the following fields:
DSCP In — Check to select as a criterion, and enter which DiffServ Code Point in the packet to use. This field determines to which queue the packet is sent.
Queue ID — Selects the queue to which the packet is sent.
Restoring Queue Defaults
Open the DSCP Queue Mapping Tablepage.
Click the Restore Defaults check box.
Click Apply Changes.
Queue values are returned to their defaults, and the device is updated.
Mapping Table Configuration Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Interface Configuration
Use theInterface Configuration page to specify ports individually for CoS configuration and to apply an interface shaping rate to the selected ports.
To display theInterface Configuration page, click Quality of Service® Class of Service® Interface Configuration in the tree view.
Figure 12-18. Interface Configuration
The Interface Configuration page contains the following fields:
Interface — Selects the interface to be affected by the Interface Shaping Rate.
Interface Shaping Rate — Sets the cap on how much traffic can leave a port. The specified value represents a percentage of the maximum negotiated bandwidth. Valid values are 0–100, in increments of 5.
Restore Defaults — Restores the default interface shaping rate to the selected interfaces when checked.
Defining Interface Configuration
Open the Interface Configuration page.
Select the unit and port or LAGto be affected, or select Global to apply the settings to all
interfaces.
Enter an Interface Shaping Rate to apply to these ports.
Click Apply Changes.
The new Interface Shaping Rate is applied to the selected interface(s) and the device is updated.
Restoring Default Shaping Rate
Open the Interface Configuration page.
Click the Restore Defaults check box.
Click Apply Changes.
All ports are restored to the default shaping rate, and the device is updated.
Defining Interface Configuration Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
QoS Commands
Interface Queue Configuration
Use theInterface Queue Configuration page to define what a particular queue does by configuring switch egress queues. User-configurable parameters control the amount of bandwidth used by the queue, the queue depth during times of congestion, and the scheduling of packet transmission from the set of all queues on a port. Each port has its own CoS queue-related configuration.
The configuration process is simplified by allowing each CoS queue parameter to be configured globally or per-port. A global configuration change is automatically applied to all ports in the system.
To display theInterface Queue Configuration page, click Quality of Service® Class of Service® Interface Queue Configuration in the tree view.
Figure 12-19. Interface Queue Configuration
The Interface Queue Configuration page contains the following fields:
Interface — Specifies the Interface (Unit/Port, LAG, or Global) that's being configured.
Queue ID — Selects the queue to be configured from the drop-down menu.
Minimum Bandwidth — Selects a percentage of the maximumnegotiated bandwidth for the port. Specify a percentage from 0 to 100, in increments of 5.
Scheduler Type — Selects the type of queue processing from the drop-down menu. Options are Weighted and Strict. Defining on a per-queue basis allows the user to create the desired service characteristics for different types of traffic.
Weighted— Weighted round robin associates a weight to each queue. This is the default.
Strict— Strict priority services traffic with the highest priority on a queue first.
Queue Management Type — Displays the type of packet management used for all packets, which is Taildrop. All packets on a queue are safe until congestion occurs. At this point, any additional packets queued are dropped.
Configuring an Interface Queue
Open the Interface Queue Configuration page.
Select the port to be affected from the InterfaceUnit and Port drop-down menus.
Use the remaining fields to configure the queue and its settings for this port.
Click Apply Changes.
The queue is configured, and the device is updated.
Displaying Interface Queue Settings
Open the Interface Queue Configuration page.
Click Show All.
The Interface Queue Status page displays.
Select Unit / Port, LAG, or Global.
Figure 12-20. Interface Queue Status
Configuring an Interface Queue Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
