display msdp brief

Function

The display msdp brief command displays the brief status information of MSDP peers.

Format

display msdp [ vpn-instance vpn-instance-name | all-instance ] brief [ state { connect | down | listen | shutdown | up } ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Specifies a VPN instance. vpn-instance-name specifies the name of the VPN instance.	The name is a string of 1 to 31 characters.
all-instance	Indicates all the instances.	-
connect	Indicates the MSDP peers in the Connect state.	-
down	Indicates the MSDP peers in the Down state.	-
listen	Indicates the MSDP peers in the Listen state.	-
shutdown	Indicates the MSDP peers in Shutdown state.	-
up	Indicates the MSDP peers in the Up state.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

As defined by MSDP, the peer with the higher IP address functions as a server and listens at port 639, and the peer with the lower IP address functions as a client and initiates a connection. If the connection initiates by the client fails, the client initiates a connection again after a period of time.

A TCP connection needs to be set up among MSDP peers. You can use the display msdp brief command to view the brief status of remote MSDP peers and the state of the TCP connection.

Precautions

If vpn-instance or all-instance is not specified, only the public network instance is displayed.

MSDP defines that the peer with the higher IP address acts as the server and listens at port 639. The peer with the lower IP address acts as client and enables the connection. If the connection fails, the client enables the connection again.

Example

# Display the brief status information of MSDP peers in the public network instance.

<sysname> display msdp brief
MSDP Peer Brief Information of VPN-Instance: public net
  Configured   Up           Listen       Connect      Shutdown     Down
  2            2            0            0            0            0

  Peer's Address     State     Up/Down time    AS     SA Count   Reset Count
  192.168.3.2           UP        01:07:08       ?        8           0
  192.168.5.1           UP        00:16:39       ?        13          0

**Table 1** Description of the **display msdp brief** command output
Item	Description
MSDP Peer Brief Information of VPN-Instance	VPN instance to which brief information about MSDP peers corresponds
Configured	Total number of configured MSDP peers
Up	Number of MSDP peers in the Up state
Listen	Number of MSDP peers in the Listen state
Connect	Number of MSDP peers in the Connect state
Shutdown	Number of MSDP peers in the Shutdown state
Down	Number of MSDP peers in the Down state
Peer's Address	Address of the peer
State	Status of the MSDP session Up: indicates the connection is set up and is in the Up state. Listen: indicates the local host acts as the server and is in the Listen state. The connection is set up. Connect: indicates the local host acts as the client and is in the Connect state. The connection is not set up. Shutdown: indicates the MSDP peer is in the Shutdown state. Down: indicates the connection fails. NOTE: If Down is displayed in the State field, check that the MSDP peer interfaces are configured correctly and the two MSDP peers can ping each other. If either end fails to be pinged, troubleshoot faults. For troubleshooting details, see the section "The Ping Operation Fails " in VRP Troubleshooting - IP Forwarding and Routing.
Up/Down time	Time when the session becomes Up or Down. The time format is as follows: Shorter than or equal to 24 hours: hour:minute:second Longer than 24 hours but shorter than one week:day:hour Longer than one week: week:day
AS	The AS number of the MSDP peer. "?" indicates that the AS number cannot be obtained
SA Count	Number of (S, G) entries in the cache
Reset Count	Number of times to reset, including the resetting because the Notification message is received or Holdtimer times out