Network queue QoS policies
Overview
Network queue policies define the ingress network queuing at the FP 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 the card FP ingress network and port Ethernet network. Other network queue QoS policies must be explicitly created and associated.
For information about the tasks and commands necessary to access the CLI and to configure and maintain devices, see the Entering CLI Commands chapter in the 7450 ESS, 7750 SR, 7950 XRS, and VSR Classic CLI Command Reference 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, H-QoS 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 are based on frame-offered-load calculations. Bandwidth distribution on network port with port-based scheduling shows port-based virtual scheduling bandwidth distribution.
A network queue with a port parent association that exists on a port without a scheduler policy defined is considered to be orphaned.
Basic configurations
A basic network queue QoS policy must conform to the following:
Each network queue QoS policy must have a unique policy name.
Queue parameters can be modified but cannot be deleted.
Creating 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 the card FP ingress network and port Ethernet network.
To create a network queue policy, enter the configure qos network-queue command with an unused policy name followed by the create keyword. Once created, the parameters in the policy, such as a description, the mapping of forwarding classes to queues, and the queue properties can be configured.
Applying network queue QoS policies
Apply network queue policies to the following entities:
FPs
Ethernet Ports
SONET/SDH Ports
FPs
Use the following CLI syntax to apply a network queue policy to an FP ingress network:
config>card
fp fp-number
ingress
network
queue-policy name
The following output displays FP ingress network queue policy using the default policy.
*A:PE>config>card>fp# info detail
----------------------------------------------
ingress
network
queue-policy "default"
exit
exit
----------------------------------------------
*A:PE>config>card>fp#
Ethernet ports
Use the following CLI syntax to apply a network queue policy to an Ethernet port.
config>port#
ethernet
network
queue-policy nameThe 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:
config>port#
sonet-sdh
path path
network
queue-policy nameThe 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 policy is named default and cannot be modified or deleted. The default policy parameters are shown below.
*A:PE>config>qos# network-queue "default"
*A:PE>config>qos>network-queue# info detail
----------------------------------------------
description "Default network queue QoS policy."
hs-attachment-policy "default"
queue 1 auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 0 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 2 auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 25 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 3
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 3 auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 25 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 10
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 4 auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 25 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 25
cbs 3
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 5 auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 100 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 10
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 6 auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 100 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 10
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 7 auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 10 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 25
cbs 3
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 8 auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 10 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 25
cbs 3
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 9 multipoint auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 0 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 10 multipoint auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 5 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 11 multipoint auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 5 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 12 multipoint auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 5 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 25
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 13 multipoint auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 100 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 14 multipoint auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 100 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 50
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 15 multipoint auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 10 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 25
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
queue 16 multipoint auto-expedite create
no port-parent
no avg-frame-overhead
rate 100 cir 10 fir 0
adaptation-rule pir closest cir closest fir closest
mbs 25
cbs 1
hs-mbs 100
hs-wrr-weight 1
hs-class-weight 1
hs-wred-queue policy "_tmnx_hs_default"
no hs-alt-port-class-pool
drop-tail
low
percent-reduction-from-mbs default
exit
exit
exit
hs-wrr-group 1
rate 100
adaptation-rule pir closest
hs-class-weight 1
exit
hs-wrr-group 2
rate 100
adaptation-rule pir closest
hs-class-weight 1
exit
fc af create
multicast-queue 11
queue 3
exit
exit
fc be create
multicast-queue 9
queue 1
exit
exit
fc ef create
multicast-queue 14
queue 6
exit
exit
fc h1 create
multicast-queue 15
queue 7
exit
exit
fc h2 create
multicast-queue 13
queue 5
exit
exit
fc l1 create
multicast-queue 12
queue 4
exit
exit
fc l2 create
multicast-queue 10
queue 2
exit
exit
fc nc create
multicast-queue 16
queue 8
exit
exit
----------------------------------------------
*A:PE>config>qos>network-queue#
Service management tasks
This section discusses network queue QoS policy service management tasks.
Deleting QoS policies
A network queue policy is associated by default with the card FP ingress network and port Ethernet network. The default policy can be replaced with a customer-configured policy, but cannot entirely be removed. When a QoS policy is removed, the policy association reverts to the default network-queue policy.
To delete a user-created network queue policy, enter the following command:
config>qos# no network-queue policy-name
Example:
config>qos# no network-queue nq1
Removing a policy from the QoS configuration
To delete a network policy, enter the following command:
config>qos# no network-queue policy-name
Example:
config>qos# no network-queue test
Copying and overwriting QoS policies
An existing network queue policy can be copied, renamed with a new policy ID name, or used to 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
Existing policies, except the default policies, and entries in the CLI can be modified. 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, then overwrite the original policy.