Supported Platforms
Understanding Interface Naming Conventions on EX Series Switches
Juniper Networks EX Series Ethernet Switches use a naming convention for defining the interfaces that is similar to that of other platforms running under Juniper Networks Junos operating system (Junos OS). This topic provides brief information about the naming conventions used for interfaces on EX Series switches. For additional information, see the Junos OS Network Interfaces Configuration Guide.
This topic describes:
Physical Part of an Interface Name
Network interfaces in Junos OS are specified as follows:
type-fpc / pic / port
EX Series switches apply this convention as follows:
- type—EX Series interfaces use
the following media types:
- ge—Gigabit Ethernet interface
- xe—10 Gigabit Ethernet interface
- et—40 Gigabit Ethernet interface
- fpc—Flexible PIC Concentrator.
EX Series interfaces use the following convention for the FPC number
in interface names:
- On an EX2200 switch, an EX3200 switch, a standalone EX3300 switch, a standalone EX4200 switch, a standalone EX4300 switch, a standalone EX4500, and a standalone EX4550 switch, FPC refers to the switch itself. The FPC number is 0 by default on these switches.
- On an EX3300 Virtual Chassis, an EX4200 Virtual Chassis, an EX4300 Virtual Chassis, an EX4500 Virtual Chassis, an EX4550 Virtual Chassis, or a mixed Virtual Chassis, the FPC number indicates the member ID of the switch in the Virtual Chassis.
- On an EX6200 switch and a standalone EX8200 switch, the FPC number indicates the slot number of the line card that contains the physical interface. On an EX6200 switch, the FPC number also indicates the slot number of the Switch Fabric and Routing Engine (SRE) module that contains the uplink port.
- On an EX8200 Virtual Chassis, the FPC number indicates the slot number of the line card on the Virtual Chassis. The line card slots on Virtual Chassis member 0 are numbered 0 through 15; on member 1, they are numbered 16 through 31, and so on.
- pic—EX Series interfaces use
the following convention for the PIC (Physical Interface
Card) number in interface names:
- On EX2200, EX3200, EX3300, EX4200, EX4500 switch, and EX4550 switches, the PIC number is 0 for all built-in interfaces (interfaces that are not uplink ports).
- On EX2200, EX3200, EX3300, and EX4200 switches, the PIC number is 1 for uplink ports.
- On EX4300 switches, the PIC number is 0 for built-in network ports, 1 for built-in QSFP+ ports (located on the rear panel of the switch), and 2 for uplink module ports.
- On EX4500 switches, the PIC number is 1 for ports on the left-hand uplink module and 2 for ports on the right-hand uplink module.
- On EX4550 switches, the PIC number is 1 for ports in the expansion module or Virtual Chassis module installed in the module slot on the front panel of the switch and 2 for those in the expansion module or Virtual Chassis module installed in the module slot on the rear panel of the switch.
- On EX6200 and EX8200 switches, the PIC number is always 0.
- port—EX Series interfaces use
the following convention for port numbers:
- On EX2200, EX3200, EX3300, EX4200, EX4300, EX4500, and EX4550 switches, built-in network ports are numbered from left to right. On models that have two rows of ports, the ports on the top row start with 0 followed by the remaining even-numbered ports, and the ports on the bottom row start with 1 followed by the remaining odd-numbered ports.
- Uplink ports in EX2200, EX3200, EX3300, EX4200, EX4300, EX4500, and EX4550 switches are labeled from left to right, starting with 0.
- On EX6200 and EX8200 switches, the network ports are numbered from left to right on each line card. On line cards that have two rows of ports, the ports on the top row start with 0 followed by the remaining even-numbered ports, and the ports on the bottom row start with 1 followed by the remaining odd-numbered ports.
- Uplink ports on an SRE module in an EX6200 switch are labeled from left to right, starting with 0.
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: type-fpc/pic/port.logical-unit-number. For example, if you issue the show ethernet-switching interfaces command on a system with a default VLAN, the resulting display shows the logical interfaces associated with the VLAN:
Interface State VLAN members Blocking ge-0/0/0.0 down remote-analyzer unblocked ge-0/0/1.0 down default unblocked ge-0/0/10.0 down default unblocked
Wildcard Characters in Interface Names
In the show interfaces and clear interfaces commands, you can use wildcard characters in the interface-name option to specify groups of interface names without having to type each name individually. You must enclose all wildcard characters except the asterisk (*) in quotation marks (" ").
