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show virtual-chassis protocol database (MX Series Virtual Chassis)

Syntax

Description

Display the entries in the Virtual Chassis Control Protocol (VCCP) link-state database for an MX Series Virtual Chassis configuration. The VCCP link-state database contains information about protocol data unit (PDU) packets. You can issue the show virtual-chassis protocol database command from the console of either member router in the Virtual Chassis.

Options

brief | detail | extensive

(Optional) Display the specified level of output. Using the brief option is equivalent to issuing the command with no options (the default). The detail option provides more output than the brief option. The extensive option provides complete output and is most useful for customer support personnel.
all-members

(Optional) Display the VCCP link-state database for both member routers in a Virtual Chassis. This is the default behavior if no options are specified.
local

(Optional) Display the VCCP link-state database for the member router on which you are issuing the command.
member member-id

(Optional) Display the VCCP link-state database for the specified member router. Replace member-id with the value 0 or 1.
system-id

(Optional) Display the VCCP link-state database for the neighbor with the specified system ID.

Required Privilege Level

view

Output Fields

Table 1 lists the output fields for the show virtual-chassis protocol database command. Output fields are listed in the approximate order in which they appear.

Table 1: show virtual-chassis protocol database Output Fields

Field Name

Field Description

Level of Output

membern

Member ID of the Virtual Chassis member router for which output is displayed.

All levels

LSP ID

Link-state PDU (LSP) identifier.

All levels

Sequence

Sequence number of the link-state PDU.

All levels

Checksum

Checksum value of the link-state PDU.

All levels

Lifetime

Remaining lifetime of the link-state PDU, in seconds.

All levels

number LSPs

Total number of link-state PDUs in the specified link-state database.

none, brief

Neighbor, Neighbor Info

Media access control (MAC) address of the neighbor on the advertising system.

detail, extensive

Interface

Name of the Virtual Chassis port interface, in the format vcp-slot/pic/port.logical-unit-number.

detail, extensive

Metric

Metric value of the prefix or neighbor.

detail, extensive

Header

Link-state PDU (LSP) packet header:

  • LSP ID—LSP identifier in the header.

  • Length—Header length, in bytes.

  • Allocated length—Length available for the header, in bytes.

  • Remaining lifetime—Remaining lifetime of the link-state PDU, in seconds.

  • Interface—The interface from which the LSP is received.

  • Estimated free bytes—Estimated number of available bytes in the LSP.

  • Actual free bytes—Actual number of available bytes in the LSP.

  • Aging timer expires in—Remaining lifetime of the LSP, in seconds.

extensive

Packet

Link-state PDU (LSP) packet:

  • LSP ID—Identifier for the link-state packet.

  • Length—Packet length, in bytes.

  • Lifetime—Remaining lifetime, in seconds.

  • Checksum—Checksum of the link-state PDU.

  • Sequence—Sequence number of the link-state PDU. This number increments whenever the link-state PDU is updated.

  • Fixed length—Set length for the packet, in bytes.

  • Version—Protocol version.

  • Sysid length—Length of the system ID, in bytes. The value 0 represents 6 bytes.

  • Packet type—Protocol data unit (PDU) type of the LSP.

  • SW version—Junos OS Release number.

extensive

TLVs

Link-state PDU (LSP) type, length, and value (TLV):

  • Member ID—Identifier configured for the Virtual Chassis member router.

  • VC ID—Identifier assigned to the Virtual Chassis member router.

  • Flags—Internal flags that keep track of the member state for the purpose of primary-role election in the Virtual Chassis.

  • Priority—Priority value associated with the role assigned to a member router in the preprovisioned Virtual Chassis configuration. For example, the priority value for the routing-engine role is 129. The priority value is used for primary-role election in the Virtual Chassis.

  • System ID—System ID of the device associated with the Virtual Chassis port interface. The System ID is derived from the device’s media access control (MAC) address.

  • Device ID—Identifier for the device; usually the same as the Member ID.

  • Neighbor Info—System ID, Virtual Chassis port interface, and metric value for VCCP neighbor.

  • Topology Info—System ID of the VCCP neighbor.

  • IRI Addr Info—Internal routing interface (IRI) IP address, which is reserved for internal communication.

  • Master Info—System ID of the primary router in the Virtual Chassis.

  • Backup Info—System ID of the backup router in the Virtual Chassis.

  • Stable State Info—Internal state information used for primary-role election in the Virtual Chassis.

  • Member Info—System ID, Member ID, and role of each member router in the Virtual Chassis.

  • Provision Info—Member ID and chassis serial number specified for each member router in the preprovisioned configuration for an MX Series Virtual Chassis.

  • Unknown TLV—Type and length of TLVs with unsupported content received on this device.

extensive

number queued

Number of link-state PDUs queued on the specified Virtual Chassis port interface.

extensive

Sample Output

show virtual-chassis protocol database all-members brief

show virtual-chassis protocol database member 0 detail

show virtual-chassis protocol database member 0 b0c6.9abf.6800 detail

show virtual-chassis protocol database member 0 extensive

Release Information

Command introduced in Junos OS Release 11.2.

Related Documentation