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show isis authentication


Syntax (EX Series Switches and QFX Series)


Display information about Intermediate System-to-Intermediate System (IS-IS) authentication.



Display information about IS-IS authentication.

instance instance-name

(Optional) Display IS-IS authentication for the specified routing instance.

logical-system (all | logical-system-name)

(Optional) Perform this operation on all logical systems or on a particular logical system.

Required Privilege Level


Output Fields

Table 1 describes the output fields for the show isis authentication command. Output fields are listed in the approximate order in which they appear.

Table 1: show isis authentication Output Fields

Field Name

Field Description


Interface name.


IS-IS level.

IIH Auth

IS-IS Hello (IIH) packet authentication type.

Displays the name of the active keychain if hitless authentication key rollover is configured.

CSN Auth

Complete sequence number authentication type.

PSN Auth

Partial sequence number authentication type.

L1 LSP Authentication

Layer 1 link-state PDU authentication type.

L2 LSP Authentication

Layer 2 link-state PDU authentication type.

Sample Output

show isis authentication

show isis authentication (With Hitless Authentication Key Rollover Configured)

Release Information

Command introduced in Junos OS Release 7.5.

Support for hitless authentication key rollover introduced in Junos OS Release 11.2.