display isis brief

Function

The display isis brief command displays brief information about IS-IS.

Format

display isis brief [ process-id | vpn-instance vpn-instance-name ]

display isis [ process-id | vpn-instance vpn-instance-name ] brief

Parameters

Parameter	Description	Value
process-id	Specifies the IS-IS process ID.	The value is an integer ranging from 1 to 65535.
vpn-instance vpn-instance-name	Displays brief information about the IS-IS multi-instance process of the specified VPN. vpn-instance-name specifies the name of a VPN instance.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

None

Example

# Display brief information about the IS-IS processes of all public network instances.

<sysname> display isis brief

                     ISIS Protocol Information for ISIS(1)
                     -------------------------------------
SystemId: 0000.0000.0002      System Level: L12
Area-Authentication-mode: NULL
Domain-Authentication-mode: NULL
Ipv6 is not enabled
ISIS is in starting status
ISIS is in protocol hot standby state: Real-Time Backup

Interface: 10.1.1.2(GE0/0/0)
Cost: L1 10        L2 10                Ipv6 Cost: L1 10   L2 10
State: IPV4 Up                          IPV6 Down
Type: P2P                               MTU: 1500
Priority: L1 64   L2 64
Timers:     Csnp: L1 10   L2 10     , Retransmit: L12 5   , Hello: L1 10   L2 10,
Hello Multiplier: L1 3   L2 3     , LSP-Throttle Timer: L12 50

**Table 1** Description of the **display isis brief** command output
Item	Description
ISIS Protocol Information for ISIS (1)	1: IS-IS process ID.
SystemId	Host system ID of the IS-IS device.
System Level	Level of the device. L1: Level-1 L2: Level-2 L12: Level-1-2
Area-Authentication-mode	Area authentication mode, which can be any of the following: NULL: No authentication SIMPLE: Plaintext authentication MD5: MD5 authentication or keychain authentication with effective MD5 as the algorithm CRYPTO_AUTH: HMAC-SHA256 authentication
Domain-Authentication-mode	Domain authentication mode: NULL: No authentication SIMPLE: Plaintext authentication MD5: MD5 authentication or keychain authentication with effective MD5 as the algorithm CRYPTO_AUTH: HMAC-SHA256 authentication
Ipv6 is not enabled	IPv6 is not enabled for the local IS-IS process.
ISIS is in starting status	IS-IS is running.
ISIS is in restart-completed status	IS-IS reboots completely.
ISIS is in protocol hot standby state: Real-Time Backup	IS-IS is in Real-Time Backup state.
Real-Time Backup	Real-Time Backup state.
Interface	Type, number and address of the interface on which IS-IS is enabled.
Cost	Cost of an IPv4 interface.
Ipv6 Cost	Cost of an IPv6 interface.
State	Status of the interface on which IS-IS is enabled.
Type	Type of the interface on which IS-IS is enabled: P2P, Broadcast, or NBMA.
MTU	MTU of the interface on which IS-IS is enabled.
Priority	Priority of the interface on which IS-IS is enabled. NOTE: When the interface is a virtual link interface, the priority field is not displayed.
Timers	Timers of IS-IS.
Csnp	Interval of a CSNP packet timer.
Retransmit	Interval at which LSPs are transmitted over a P2P link.
Hello	Interval of a Hello timer.
Hello Multiplier	Number of Hello packets that are sent by the neighbor but not received by IS-IS before the neighbor is declared to be Down.
LSP-Throttle Timer	Minimum interval for sending LSPs.