Interface Naming Conventions

type

Type of network medium that can connect to this interface.

at—ATM-over-ADSL or ATM-over-SHDSL WAN interface

bc—Bearer channel on an ISDN interface

br—Basic Rate Interface for establishing ISDN connections

ce1—Channelized E1 interface

ct1—Channelized T1 interface

dc—Delta channel on an ISDN interface

dl—Dialer interface for initiating ISDN and USB modem connections

e1—E1 WAN interface

e3—E3 WAN interface

fe—Fast Ethernet interface

ge—Gigabit Ethernet interface

reth—For chassis cluster configurations only, redundant Ethernet interface

se—Serial interface (either RS-232, RS-422/499, RS-530, V.35, or X.21)

t1—T1 (also called DS1) WAN interface

t3—T3 (also called DS3) WAN interface

wx—WXC Integrated Services Module (ISM 200) interface for WAN acceleration

xe—10-Gigabit Ethernet interface

In addition to these network interfaces, devices can have the following special interfaces: dsc, gr and gre, ip and ipip, lo, ls and lsi, lt, pd and pimd, pc, pe and pime, pp0, st, tap, and umd0. For more information, see Special Interfaces.

slot

Number of the chassis slot in which a PIM or IOC is installed.

J-series Services Router: The slot number begins at 1 and increases as follows from top to bottom, left to right:

• J2320 router—Slots 1 to 3
• J2350 router—Slots 1 to 5
• J4350 or J6350 router—PIM slots 1 to 6

The slot number 0 is reserved for the out-of-band management ports. (See Management Interface.)

SRX 5600 and 5800 services gateways: The slot number begins at 0 and increases as follows from left to right, bottom to top:

• SRX 5600 services gateway—Slots 0 to 5
• SRX 5800 services gateway—Slots 0 to 5, 7 to 11

SRX 3400 and 3600 services gateways: The Switch Fabric Board (SFB) is always 0. Slot numbers increase as follows from top to bottom, left to right:

• SRX 3400 services gateway—Slots 0 to 4
• SRX 3600 services gateway—Slots 0 to 6

pim-or-ioc

Number of the PIM or IOC on which the physical interface is located.

J-series Services Routers: This number is always 0. Only one PIM can be installed in a slot.

SRX 5600 and 5800 services gateways: For 40-port Gigabit Ethernet IOCs or 4–port 10-Gigabit Ethernet IOCs, this number can be 0, 1, 2, or 3.

SRX 3400 and 3600 services gateways: This number is always 0. Only one IOC can be installed in a slot.

port

Number of the port on a PIM or IOC on which the physical interface is located.

J-series Services Routers:

• On a single-port PIM, always 0.
• On a multiple-port PIM, this number begins at 0 and increases from left to right, bottom to top, to a maximum of 3.

On SRX 5400 and 5800 services gateways:

• For 40-port Gigabit Ethernet IOCs, this number begins at 0 and increases from left to right to a maximum of 9.
• For 4-port 10-Gigabit Ethernet IOCs, this number is always 0.

On SRX 3400 and 3600 services gateways:

• For the SFB built-in copper Gigabit Ethernet ports, this number begins at 0 and increases from top to bottom, left to right, to a maximum of 7. For the SFB built-in fiber Gigabit Ethernet ports, this number begins at 8 and increases from left to right to a maximum of 11.
• For 16-port Gigabit Ethernet IOCs, this number begins at 0 to a maximum of 15.
• For 2-port 10-Gigabit Ethernet IOCs, this number is 0 or 1.

Port numbers appear on the PIM or IOC faceplate.

channel

Number of the channel (time slot) on a fractional or channelized T1 or E1 interface.

• On an E1 interface, a value from 1 through 31. The 1 time slot is reserved.
• On a T1 interface, a value from 1 through 24.

unit

Number of the logical interface created on a physical interface.

A value from 0 through 16384.

If no logical interface number is specified, unit 0 is the default, but must be explicitly configured. For more information about logical interfaces, see Interface Logical Properties.