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show mpls label usage

date_range 19-Nov-23

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Syntax

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show mpls label usage
<label label value>
<label-range range-start range-end>
<logical-system  (all | logical-sytem-name)>

Description

Show the available label space resource in RPD and also the applications that use the label space in RPD. There are four different label spaces currently used in MPLS—namely LSI, dynamic, block, and static. Each label space has a fixed number and cannot grow beyond the fixed value. Using this command, the administrator can monitor the available labels in each label space and the applications that are using the labels. Based on the availability of labels, the administrator can decide to stop any service and free some labels or use other service where the labels are available.

Starting in Junos OS Release 17.2, you can configure the enhanced-ip command, which is supported on platforms using Modular Port Concentrators (MPCs) equipped with Junos Trio chipsets. You can also separate the MPLS labels used for different label spaces which provides more flexibility and scalability.

When you set each member router’s network services to enhanced-ip, only MPC or Modular Interface Cards (MICs) modules and Multiservices Dense Port Concentrator (MS-DPC) modules are powered on in the chassis. Non-service DPCs do not work with enhanced IP network services.

Options

none	Display the available labels in each label space and the applications using the labels.
label `label value`	(Optional) Display the information about which `label value` is used by which protocol, if any.
label-range `range-start range-end`	(Optional) Display the complete information about the `label-range` specified. WIth the `enhanced-ip` command enabled on the supported device, effective ranges and configured ranges along with details of different label spaces such as LSI, dynamic, block, and static types are displayed.
logical-system (all \|`logical-system-name`)	(Optional) Perform this operation on all logical systems or on a particular logical system.

Additional Information

Once the label space crosses the threshold, a new syslog message is added.

<label-space-name> label space usage crossed threshold limit of 90%.

For instance, LSI label space usage crossed threshold limit of 90%.

Required Privilege Level

view

Output Fields

Table 1 describes the output fields for the show mpls label usage command. Output fields are listed in the order in which they appear.

Table 1: show mpls label usage Fields
Field Name	Field Description
Label Space	Indicates the different types of labels currently used in MPLS.
Total	Indicates the total label space available.
Available	Indicates the number of freely available labels and also the percentage of the label space available.
Applications	Indicates the applications that use the MPLS label spaces.
Effective Ranges	Indicates actual ranges in use, which can be different from configured ranges, if conflicting with label already allocated.
Configured Ranges	Indicates the currently configured range assigned to different label spaces on the device.

Sample Output