close

keyboard_arrow_left

Table of Contents Expand all

list Table of Contents

English

monitoring-profile

date_range 16-Dec-24

arrow_backward

arrow_forward

Syntax

content_copy zoom_out_map
monitoring-profile profile-name {
    export-filters filter-name {
        peak-queue-length {
            percent percent;
        }
        queue [queue(s)];
    }
}

Hierarchy Level

content_copy zoom_out_map
[edit class-of-service],
[edit dynamic-profiles name class-of-service]

Description

Define a queue-length monitor to measure peak queue occupancy of a virtual output queue (VOQ).

In a typical deployment scenario that uses strict-priority scheduling, a HIGH priority queue can starve LOW priority queues. Thus the packets in such LOW priority queues can remain longer than desired. Use this VOQ queue-length monitoring feature, along with queue transmit statistics, to detect such stalled conditions.

Options

monitoring-profile	(Required) Name of the monitoring profile. Use the monitoring profile name to attach the monitoring profile to one or more interfaces. Each monitoring profile contains one or more export filters.
export-filters	(Required) Name of the export filter. Each export filter consists of an optional peak queue length percentage filter and one or more queues.
peak-queue-length percent	(Optional) The percentage of the peak queue length filter. When configured, Junos exports VOQ telemetry only when the hardware-captured peak queue length exceeds the configured value. When not configured, Junos always exports VOQ telemetry. Range: 0 through 100 Default: 0
queue	(Required) The queue, or queues, for the export filter to monitor. Range: 0 through 7

Attach the monitoring profile at the [edit class-of-service interfaces interface-name] hierarchy level. For example:

content_copy zoom_out_map
[edit class-of-service]
user@host# show
interfaces {

    ae0 {
        monitoring-profile mp1 shared;
    }
    et-0/0/1 {
        monitoring-profile mp1;
    }
}

By default, a monitoring profile that you assign to an aggregated Ethernet (ae-) interface replicates across all members of the ae- interface. The monitoring profile also reports virtual output queue (VOQ) depth individually on each interface. On large systems, this process can quickly consume the maximum supported hardware monitoring profile IDs. To conserve monitoring profile IDs, include the shared option at the [set class-of-service interfaces ae-interface monitoring-profile profile-name] hierarchy level. The configured shared option creates only one monitoring profile ID to share across all member interfaces. The option also reports the largest peak on a member interface as the common peak for the ae- interface.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Evolved Release 22.2R1.

arrow_backward PREVIOUS monitoring-key (PCC Action Profile)

NEXT arrow_forward monitoring (Services)

Junos CLI Reference

ON THIS PAGE

monitoring-profile

Syntax

Hierarchy Level

Description

Options

Required Privilege Level

Release Information

Stay in touch

Helped me install or use the product
Accelerated my deployment

Discuss the product with a co-worker
Make a purchase inquiry

Junos CLI Reference

ON THIS PAGE

monitoring-profile

Syntax

Hierarchy Level

Description

Options

Required Privilege Level

Release Information

Related Documentation

Stay in touch