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Virtual Chassis Port (VCP) Interface Names in an EX8200 Virtual Chassis

 

A Virtual Chassis port (VCP) in an EX8200 Virtual Chassis is any port whose function is to send and receive Virtual Chassis Control Protocol (VCCP) traffic to create, monitor, and maintain the Virtual Chassis.

An EX8200 Virtual Chassis has four types of interfaces that can form a VCP link.

This topic describes the naming conventions for these interface types:

Virtual Chassis Control Interface (VCCI) Module VCP Name on the XRE200 External Routing Engine

The interface names for the Gigabit Ethernet or small form-factor pluggable (SFP) VCPs on the VCCI modules in the XRE200 External Routing Engine follow this format:

vcp-slot-number/port-number

where:

  • slot-number—Slot on the XRE200 External Routing Engine where the VCCI module is installed. VCCI modules can be installed in slot 1 and slot 2 on the external Routing Engine.

  • port-number—Port number on the VCCI module. Each VCCI module has four ports numbered 0 through 3.

Native VCP Name on the XRE200 External Routing Engine

The native VCP on the XRE200 External Routing Engine—the port located next to the management (MGMT) port labeled 0—is always named vcp-0/0.

EX8200 Switch to XRE200 External Routing Engine VCP Name

An XRE200 External Routing Engine forms a VCP when it connects to the management (MGMT) port on the Routing Engine (RE) module or the Switch Fabric and Routing Engine (SRE) module in an EX8200 switch.

The naming for the management port on the EX8200 switch when used as a VCP follows this format:

vcp-pic/slot

where:

  • pic is the PIC number, which is always 0 for an EX8200 switch.

  • slot is the number of the slot containing the RE module or the SRE module.

An EX8200 switch VCP name is always vcp-0/0 or vcp-0/1.

EX8200 Switch to EX8200 Switch VCP Name

The names for the Gigabit Ethernet ports configured as VCP links on the EX8200 member switches follow this format:

vcp-fpc/pic/port

where:

  • fpc is the slot number of the line card that contains the physical interface.

  • pic is the PIC number, which is always 0 for an EX8200 switch.

  • port is the network port number.

vcp-fpc/pic/port names apply to the device that the switch is connected to, not to the switch itself. Therefore, a VCP link is named according to the connected interface. For instance, if an external Routing Engine connects to interface 4/0/3 on an EX8200 switch, that VCP link is detected as vcp-4/0/3 by the external Routing Engine.