Generic commands

description

Syntax

description description-string

no description

Context

config>qos>access-egress

Platforms

7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12

Description

This command creates a text description stored in the configuration file for a configuration context.

The description command associates a text string with a configuration context to help identify the context in the configuration file.

The no form of this command removes any description string from the context.

Parameters

description-string

Specifies a text string describing the entity. Allowed values are any string up to 80 characters composed of printable, 7-bit ASCII characters. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes.

access-egress

Syntax

access-egress policy-id [create]

no access-egress policy-id

Context

config>qos

Platforms

7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12

Description

Commands in this context create or edit an access egress QoS policy. The policy can be applied to multiple access ports. The access egress policy is common to services (SAPs) that are all egressing on a particular port.

On 7210 SAS-Mxp, the access egress policy provides an option to configure remarking parameters and access port egress queue parameters on access port. The remarking parameters are used when SAP-based queuing is configured and port-based marking is in use. The remarking parameters and queue parameters are used when port-based queuing is configured. See Access egress QoS policies on 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE for more information.

Any changes made to an existing policy are applied to all access ports on which the policy is specified.

A policy cannot be deleted until it is removed from all access ports where it is applied. When an access-egress policy is removed from an access port, the access port revert to the default access-egress policy ID 1.

The no form of the policy associated the default policy with the access port.

Parameters

policy-id

Specifies the value that uniquely identifies the access-egress policy.

Values

1 to 65535

create

Keyword to create an access-egress policy. The create keyword requirement can be enabled or disabled in the environment>create context.

queue

Syntax

queue queue-id

Context

config>qos>access-egress

Platforms

7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12

Description

Commands in this context modify queue parameters associated with a particular queue. The queue is identifiable by the queue-id and FCs are mapped into the queues.See Table: Forwarding class to queue-ID map for more information.

Parameters

queue-id

Specifies the access egress queue ID associated with an FC.

Values

1 to 8

remark

Syntax

remark policy-id

no remark

Context

config>qos>access-egress

Platforms

7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12

Description

This command specifies the remarking policy ID to use for marking packets on access egress (also known as, access port egress).

7210 SAS-Mxp supports two different access egress queuing modes. Marking functionality available in these two modes are different as described in the overview below. See Table: Summary of remark policy and attachment points for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 for more information.

SAP-based queuing mode

The 7210 SAS-Mxp supports SAP-based marking for access SAPs and port-based egress marking on access ports. SAP-based marking is only supported for L2 SAPs, that is, SAPs configured in Epipe and VPLS service. If user enables remarking in the SAP egress policy attached to the SAP, then the remark policy configured is used to mark the packets sent out of the SAP. If remarking is disabled in the SAP egress policy attached to the SAP, then remark policy configured under the access-egress policy associated with the egress access port is used to mark all packets sent out of the L2 SAP configured on the access port. This is known as port-based marking. For more details refer to the details in the chapter above on Access Egress policies. section Access egress QoS policy for SAP-based queuing mode on 7210 SAS-Mxp.

Port-based Queuing Mode

When port-based queues are used, only per port egress marking is supported. In other words, per SAP marking cannot be used when Port-based queuing mode is used. For more details refer to the details in the chapter above on Access Egress policies, section Access egress QoS policy for port-based queuing mode on 7210 SAS-Mxp

The remarking policy ID must be associated with the appropriate access egress policy and remarking must be enabled in the access egress policy to enable marking of packets sent out of all SAPs configured on the access port. Only a remarking policy of the type dot1p, dscp, or dot1p-dscp is allowed to be used when the remark policy is associated with access egress.

See Table: Summary of remark policy and attachment points for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 for more information.

The no form of this command removes the explicit association of the remark policy and associates the default remark policy. In other words, if remarking is enabled and no remark policy is executed, then the default remark policy is used to mark packets sent out. If no remark policy is executed and remarking is disabled, then packets are not remarked.

Parameters

policy-id

Specifies the remark policy.

Values

1 to 65535

remarking

Syntax

no remarking

remarking

Context

config>qos>access-egress

Platforms

7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12

Description

This command enables the system to remark egress packets sent out of access ports.

When remarking is enabled, the remark policy configured in the QoS policy context is used to determine the FC to QoS bit mapping. For example, when remarking is enabled in the access egress QoS policy, the remark policy associated with access-egress QoS policy is used to determine the FC to dot1p mapping to use for marking packets sent out of access ports.

See Remark policies and Table: Summary of remark policy and attachment points for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 for the remark policy that can be used to configure FC to priority bit markings in different QoS policies associated with different service entities.

Note:

See Access egress QoS policies on 7210 SAS-Mxp for more information.

The no form of this command disables remarking.

Default

no remarking