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minimum-links

 

Syntax (SRX, MX, T, M, EX, QFX Series, EX4600, Qfabric System)

Hierarchy Level (EX Series)

Hierarchy Level (QFX Series)

Release Information

Statement introduced before Junos OS Release 7.4.

Statement introduced in Junos OS Release 9.0 for EX Series switches.

Statement introduced in Junos OS Release 11.1 for the QFX Series.

Description

For aggregated Ethernet, SONET/SDH, multilink, link services, and voice services interfaces only, set the minimum number of links that must be up for the bundle to be labeled up.

(T Series, MX Series, PTX Series routers) You cannot configure the minimum number of links and the minimum bandwidth of an aggregated Ethernet bundle at the same time. They are mutually exclusive. To determine the status of the bundle, the device compares the value configured for minimum links and the value for minimum bandwidth. Because both cannot be configured at the same time, the device compares the configured value of the parameter with the default value of the other parameter. The device picks the higher value of the two parameters to determine the status of the Ethernet bundle. Table 1 describes how the device determines the bundle status based on sample values assigned to both parameters

Table 1: Determination of Bundle Status based on Minimum links and Minimum bandwidth Parameters

Current Bandwidth

Minimum Links

Minimum Bandwidth

Bundle Status

100G

(10x10G)

2

Bandwidth=20G (2x10G)

N/A

Default (1 bps)

Up

50G

(5x10G)

N/A

Default (1 link) Bandwidth = 10G

20G

Up

50G

(5x10G)

N/A

Default (1 link) Bandwidth = 10G

60G

Down

Options

number—Number of links.

Range: On M120, M320, MX Series, T Series, and TX Matrix routers with Ethernet interfaces, the valid range for minimum-links number is 1 through 64. When the maximum value (16) is specified, all configured links of a bundle must be up for the bundle to be labeled up.

On all other routers and on EX Series switches, other than EX8200 switches, the range of valid values for minimum-links number is 1 through 8. When the maximum value (8) is specified, all configured links of a bundle must be up for the bundle to be labeled up.

On EX8200 switches, the range of valid values for minimum-links number is 1 through 12. When the maximum value (12) is specified, all configured links of a bundle must be up for the bundle to be labeled up.

On EX4600, QFX Series and Q Fabric Systems , the range of valid values for minimum-links number is 1 through 8. When the maximum value (8) is specified, all configured links of a bundle must be up for the bundle to be labeled up.

Default: 1

Required Privilege Level

interface—To view this statement in the configuration.

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