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show isis overview

Syntax




show isis overview 

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

<instance instance-name>

Release Information

Command introduced in JUNOS Release 8.5.

Description

Display Intermediate System-to Intermediate System (IS-IS) overview information.

Options

none — Display standard overview information about IS-IS for all routing instances on all logical systems.

logical-system (all | logical-system-name) — (Optional) Perform this operation on all logical systems or on a particular logical system.

instance instance-name — (Optional) Display overview information for the specified routing instance.

Required Privilege Level

view

List of Sample Output

show isis overview

Output Fields

Table 70 lists the output fields for the show isis overview command. Output fields are listed in the approximate order in which they appear.

Table 70: show isis overview Output Fields

Field Name	Field Description
instance	The IS-IS routing intance.
Router ID	Router ID of the router.
Adjacency holddown	Adjacency holddown capability: enabled or disabled.
Maximum Areas	Maximum number of IS-IS areas advertised by router.
LSP life time	Lifetime of the link-state PDU, in seconds.
Attached bit evaluation	Attached bit capability: enabled or disabled.
SPF delay	Delay before performing consecutive Shortest Path First calculations.
SPF holddown	Delay before performing additional Shortest Path First (SPF) calculations after the maximum number of consecutive SPF calculations is reached.
SPF rapid runs	Maximum number of Shortest Path First calculations that can be performed in succession before the holddown timer begins.
Overload bit at startup is set	Overload bit capability is enabled.
Overload high metrics	Overload high metrics capability: enabled or disabled.
Overload timeout	Time period after which overload is reset and the time that remains before the timer is set to expire.
Traffic engineering	Traffic engineering capability: enabled or disabled.
Restart	Graceful restart capability: enabled or disabled.
Restart duration	Time period for complete reacquisition of IS-IS neighbors.
Helper mode	Graceful restart helper capability: enalbed or disabled.
Level	Level: 1—Level 1 information 2—Level 2 information
IPv4 is enabled	IP Protocol version 4 capability is enabled.
IPv6 is enabled	IP Protocol version 6 capability is enabled.
CLNS is enabled	OSI CLNP Protocol capability is enabled. (J-series only)
Internal route preference	Preference value of internal routes.
External route preference	Preference value of external routes.
Wide area metrics are enabled	Wide area metrics capability is enabled.
Narrow metrics is enabled	Narrow metrics capability is enabled.

show isis overview

user@host> show isis overview

Instance: master
  Router ID: 192.168.1.220
  Adjacency holddown: enabled
  Maximum Areas: 3
  LSP life time: 65535
  Attached bit evaluation: enabled
  SPF delay: 200 msec, SPF holddown: 5000 msec, SPF rapid runs: 3
  Overload bit at startup is set
    Overload high metrics: disabled
    Overload timeout: 300 sec, expires in 295 seconds
  IPv4 is enabled, IPv6 is enabled
  Traffic engineering: enabled
  Restart: Enabled
    Restart duration: 210 sec
    Helper mode: Enabled
  Level 1
    Internal route preference: 15
    External route preference: 160
    Wide metrics are enabled, Narrow metrics are enabled
  Level 2
    Internal route preference: 18
    External route preference: 165
    Wide metrics are enabled

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