Network Queue QoS Policies

In This Section

This section provides information to configure network queue QoS policies using the command line interface.

Topics in this section include:

  1. Overview
  2. Basic Configurations
  3. Default Network Queue Policy Values
  4. Service Management Tasks

Overview

Network queue policies define the ingress network queuing at the XMAMDA network node level. Network queue policies are also used at the Ethernet port and SONET/SDH path level to define network egress queuing.

There is one default network queue policy. Each policy can have up to 16 queues (unicast and multicast). The default policies can be copied but they cannot be deleted or modified. The default policy is identified as network-queue default. Default network queue policies are applied to XMA/MDA network ingress ports. You must explicitly create and then associate other network queue QoS policies.

For information about the tasks and commands necessary to access the command line interface and to configure and maintain your devices, refer to CLI Usage chapter in the Basic System Configuration Guide.

Network Queue Parent Scheduler

Network queues support port scheduler parent priority-level associations. Using a port scheduler policy definition and mapping network queues to a port parent priority level, HQoS functionality is supported providing eight levels of strict priority and weights within the same priority. A network queue’s bandwidth is allocated using the “within-cir” and “above-cir” scheme normal for port schedulers.

Queue CIR and PIR percentages when port-based schedulers are in effect will be based on frame-offered-load calculations.

A network queue with a port parent association exists on a port without a scheduler policy defined will be considered to be orphaned.

Refer to QoS Scheduler Policies for more information about queue parental association scope.

Basic Configurations

A basic network queue QoS policy must conform to the following:

  1. Each network queue QoS policy must have a unique policy name.
  2. Queue parameters can be modified, but cannot be deleted.

Create a Network Queue QoS Policy

Configuring and applying QoS policies other than the default policy is optional. A default network queue policy is applied to XMA and MDA network ingress ports.

To create an network queue policy, define the following:

  1. Enter a network queue policy name. The system will not dynamically assign a name.
  2. Include a description. The description provides a brief overview of policy features.
  3. Forwarding class — You can assign a forwarding class to a specific queue.

Use the following CLI syntax to create a network queue QoS policy:

CLI Syntax:
config>qos
network-queue policy-name
description description-string
fc fc-name
multicast-queue queue-id
queue queue-id
queue queue-id [multipoint] [queue-type]
cbs percent
high-prio-only percent
mbs percent
port-parent [weight weight] [level level] [cir-weight cir-weight] [cir-level cir-level]
rate percent [cir percent]

The following output displays a network queue QoS policy.

A:ALA-1>config>qos# network-queue default
A:ALA-1>config>qos>network-queue# info detail
----------------------------------------------
description "Default network queue QoS policy."
queue 1 create
mbs 50
cbs 1
high-prio-only 10
exit
queue 2 create
rate 100 cir 25
mbs 50
cbs 3
high-prio-only 10
exit
queue 3 create
rate 100 cir 25
mbs 50
cbs 1
high-prio-only 10
exit
queue 4 create
rate 100 cir 25
mbs 25
cbs 3
high-prio-only 10
exit
queue 5 create
rate 100 cir 100
mbs 50
cbs 1
high-prio-only 10
exit
queue 6 create
rate 100 cir 100
mbs 50
cbs 1
high-prio-only 10
exit
queue 7 create
rate 100 cir 10
mbs 25
cbs 3
high-prio-only 10
exit
queue 8 create
rate 100 cir 10
mbs 25
cbs 3
high-prio-only 10
exit
queue 9 multipoint create
mbs 50
cbs 1
high-prio-only 10
exit
queue 10 multipoint create
rate 100 cir 5
mbs 50
cbs 1
high-prio-only 10
exit
queue 11 multipoint create
rate 100 cir 5
mbs 50
cbs 1
high-prio-only 10
exit
queue 12 multipoint create
rate 100 cir 5
mbs 25
cbs 1
high-prio-only 10
exit
queue 13 multipoint create
rate 100 cir 100
mbs 50
cbs 1
high-prio-only 10
exit
queue 14 multipoint create
rate 100 cir 100
mbs 50
cbs 1
high-prio-only 10
exit
queue 15 multipoint create
rate 100 cir 10
mbs 25
cbs 1
high-prio-only 10
exit
queue 16 multipoint create
rate 100 cir 10
mbs 25
cbs 1
high-prio-only 10
exit
fc af create
multicast-queue 11
queue 3
exit
fc be create
multicast-queue 9
queue 1
exit
fc ef create
multicast-queue 14
queue 6
exit
fc h1 create
multicast-queue 15
queue 7
exit
fc h2 create
multicast-queue 13
queue 5
exit
fc l1 create
multicast-queue 12
queue 4
exit
fc l2 create
multicast-queue 10
queue 2
exit
fc nc create
multicast-queue 16
queue 8
exit

Applying Network Queue Policies

Apply network queue policies to the following entities:

  1. XMAs and MDAs
  2. Ethernet Ports
  3. SONET/SDH Ports

XMAs and MDAs

Use the following CLI syntax to apply a network queue policy to an XMA or MDA network ingress port:

CLI Syntax:
config>card
mda mda-slot
network
ingress
queue-policy name

The following output displays XMA or MDA network ingress queue policy reverted to the default policy.

A:ALA-7>config>card>mda# info
----------------------------------------------
mda-type m60-10/100eth-tx
network
ingress
pool default
resv-cbs sum
slope-policy "default"
exit
queue-policy "default"
exit
egress
pool default
resv-cbs sum
slope-policy "default"
exit
exit
exit
access
ingress
pool default
resv-cbs sum
slope-policy "default"
exit
exit
egress
pool default
resv-cbs sum
slope-policy "default"
exit
exit
exit
no shutdown
----------------------------------------------
A:ALA-7>config>card>mda#

Ethernet Ports

Use the following CLI syntax to apply a network queue policy to an Ethernet port.

CLI Syntax:
config>port#
ethernet
network
queue-policy name

The following output displays the port configuration.

A:ALA-49>config>port# info
----------------------------------------------
ethernet
network
queue-policy "nq1"
exit
exit
no shutdown
----------------------------------------------
A:ALA-49>config>port#

SONET/SDH Ports

Use the following CLI syntax to apply a network queue policy to a SONET/SDH port:

CLI Syntax:
config>port#
sonet-sdh
path path
network
queue-policy name

The following output displays the port configuration.

A:ALA-48>config>port# info
----------------------------------------------
description "OC-12 SONET/SDH"
sonet-sdh
path sts3
network
queue-policy "nq1"
exit
no shutdown
exit
exit
no shutdown
----------------------------------------------
A:ALA-48>config>port#

Default Network Queue Policy Values

The default network queue policies are identified as policy-id default. The default policies cannot be modified or deleted. Table 25 displays default policy parameters.

Table 25:  Network Queue Policy Defaults   

Field

Default

description

"Default network queue QoS policy."

queue 1

pir

100

cir

0

mbs

50

cbs

1

high-prio-only

10

queue 2

pir

100

cir

25

mbs

50

cbs

3

high-prio-only

10

queue 3

pir

100

cir

25

mbs

50

cbs

1

high-prio-only

10

queue 4

pir

100

cir

25

mbs

25

cbs

3

high-prio-only

10

queue 5

pir

100

cir

100

mbs

50

cbs

1

high-prio-only

10

queue 6

pir

100

cir

100

mbs

50

cbs

1

high-prio-only

10

queue 7

pir

100

cir

10

mbs

25

cbs

3

high-prio-only

10

queue 8

pir

100

cir

10

mbs

50

cbs

3

high-prio-only

10

fc af

queue 3

multicast-queue 11

fc be

queue 1

multicast-queue 9

fc ef

queue 6

multicast-queue 14

fc h1

queue 67

multicast-queue 15

fc h2

queue 5

multicast-queue 13

fc l1

queue 7

multicast-queue 12

fc l2

queue 2

multicast-queue 10

fc nc

queue 8

multicast-queue 16

A:ALA-7>config>qos>network-queue# info detail
----------------------------------------------
description "Default network queue QoS policy."
queue 1 auto-expedite create
rate 100 cir 0
mbs 50
cbs 1
high-prio-only 10
exit
queue 2 auto-expedite create
rate 100 cir 25
mbs 50
cbs 3
high-prio-only 10
exit
queue 3 auto-expedite create
rate 100 cir 25
mbs 50
cbs 1
high-prio-only 10
exit
queue 4 auto-expedite create
rate 100 cir 25
mbs 25
cbs 3
high-prio-only 10
exit
queue 5 auto-expedite create
rate 100 cir 100
mbs 50
cbs 1
high-prio-only 10
exit
queue 6 auto-expedite create
rate 100 cir 100
mbs 50
cbs 1
high-prio-only 10
exit
queue 7 auto-expedite create
rate 100 cir 10
mbs 25
cbs 3
high-prio-only 10
exit
queue 8 auto-expedite create
rate 100 cir 10
mbs 25
cbs 3
high-prio-only 10
exit
queue 9 multipoint auto-expedite create
rate 100 cir 0
mbs 50
cbs 1
high-prio-only 10
exit
queue 10 multipoint auto-expedite create
rate 100 cir 5
mbs 50
cbs 1
high-prio-only 10
exit
queue 11 multipoint auto-expedite create
rate 100 cir 5
mbs 50
cbs 1
high-prio-only 10
exit
queue 12 multipoint auto-expedite create
rate 100 cir 5
mbs 25
cbs 1
high-prio-only 10
exit
queue 13 multipoint auto-expedite create
rate 100 cir 100
mbs 50
cbs 1
high-prio-only 10
exit
queue 14 multipoint auto-expedite create
rate 100 cir 100
mbs 50
cbs 1
high-prio-only 10
exit
queue 15 multipoint auto-expedite create
rate 100 cir 10
mbs 25
cbs 1
high-prio-only 10
exit
queue 16 multipoint auto-expedite create
rate 100 cir 10
mbs 25
cbs 1
high-prio-only 10
exit
fc af create
multicast-queue 11
queue 3
exit
fc be create
multicast-queue 9
queue 1
exit
fc ef create
multicast-queue 14
queue 6
exit
fc h1 create
multicast-queue 15
queue 7
exit
fc h2 create
multicast-queue 13
queue 5
exit
fc l1 create
multicast-queue 12
queue 4
exit
fc l2 create
multicast-queue 10
queue 2
exit
fc nc create
multicast-queue 16
queue 8
exit
----------------------------------------------
A:ALA-7>config>qos>network-queue#
exit

Service Management Tasks

This section discusses the following service management tasks:

  1. Deleting QoS Policies
  2. Remove a Policy from the QoS Configuration
  3. Copying and Overwriting QoS Policies
  4. Editing QoS Policies

Deleting QoS Policies

A network queue policy is associated by default with XMA or MDA network ingress ports. You can replace the default policy with a customer-configured policy, but you cannot entirely remove a QoS policy. When you remove a QoS policy, the policy association reverts to the default network-queue policy default.

To delete a user-created network queue policy, enter the following commands:

CLI Syntax:
config>qos# no network-queue policy-name
Example:
config>qos# no network-queue nq1

Remove a Policy from the QoS Configuration

To delete a network policy, enter the following commands:

CLI Syntax:
config>qos# no network-queue policy-name
Example:
config>qos# no network-queue test

Copying and Overwriting QoS Policies

You can copy an existing network queue policy, rename it with a new policy ID name, or overwrite an existing network queue policy. The overwrite option must be specified or an error occurs if the destination policy ID exists.

CLI Syntax:
config>qos# copy network-queue source-policy-id dest-policy-id [overwrite]
Example:
config>qos# copy network-queue nq1 nq2

Editing QoS Policies

You can change existing policies, except the default policies, and entries in the CLI. The changes are applied immediately to all interfaces where the policy is applied. To prevent configuration errors use the copy command to make a duplicate of the original policy to a work area, make the edits, and then overwrite the original policy.