Interface Naming Conventions

This section discusses the following topics:

• Physical Part of an Interface Name
• Logical Part of an Interface Name
• Channel Identifier Part of an Interface Name
• Wildcard Characters in Interface Names

Physical Part of an Interface Name

The M-series and T-series routing platforms use one convention, whereas the J-series routing platform uses another, as described in the following sections:

• M-series and T-series Interface Names
• J-series Interface Names

M-series and T-series Interface Names

On the M-series and T-series platforms, when you display information about an interface, you specify the interface type, the slot in which the Flexible PIC Concentrator (FPC) is installed, the slot on the FPC in which the Physical Interface Card (PIC) is located, and the configured port number.

In the physical part of the interface name, a hyphen (-) separates the media type from the FPC number, and a slash (/) separates the FPC, PIC, and port numbers:

type-fpc/pic/port 

   
NOTE: Exceptions to the type-fpc/pic/port physical description include the aggregated Ethernet and aggregated SONET/SDH interfaces, which use the syntax aenumber and asnumber, respectively.


 

J-series Interface Names

On the J-series routing platform, when you display information about an interface, you specify the interface type, the slot in which the Physical Interface Module (PIM) is installed, 0, and the configured port number.

In the physical part of the interface name, a hyphen (-) separates the media type from the PIM number, and a slash (/) separates the PIM, 0, and port numbers:

type-pim/0/port 

   
NOTE: An exception to the type-pim/0/port physical description is the Integrated Services Digital Network (ISDN) dialer interface, which uses the syntax dlnumber.


 

Logical Part of an Interface Name

The logical unit part of the interface name corresponds to the logical unit number, which can be a number from 0 through 16384. In the virtual part of the name, a period (.) separates the port and logical unit numbers:

• M-series and T-series routing platforms:

type-fpc/pic/port.logical 

• J-series routing platform:

type-pim/0/port.logical