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Interface Types and Specifiers

Many commands take the variables interfaceType and interfaceSpecifier. Some commands support all types of interfaces, whereas other commands support only certain types of interfaces. Similarly, some commands support all interface specifier formats for a particular interface type, whereas other commands support only certain interface specifier formats.

Table 4 lists the interface specifiers for each type of interface on ERX-7xx models, ERX-14xx models, and the ERX-310 router.

Note: On ERX-7xx models, ERX-14xx models, and the ERX-310 router, you can use the atm slot/port/vpi/vci interface specifier format as an alternative to the atm slot/port.subinterface format with the specific show interface and show subinterface commands to monitor all ATM 1483 subinterfaces (except NBMA interfaces) as well as the upper-layer interfaces configured over an ATM 1483 subinterface. You cannot, however, use the atm slot/port/vpi/vci format to create or modify an ATM 1483 subinterface.

Table 5 lists the interface specifiers for each type of interface on the E120 router and the E320 router.

Note: On the E120 router and the E320 router you can use the atm slot/adapter/port/vpi/vci interface specifier format as an alternative to the atm slot/adapter/port.subinterface format with the specific show interface and show subinterface commands to monitor all ATM 1483 subinterfaces (except NBMA interfaces) as well as the upper-layer interfaces configured over an ATM 1483 subinterface. You cannot, however, use the atm slot/adapter/port/vpi/vci format to create or modify an ATM 1483 subinterface.

Table 4: Interface Types and Specifiers for ERX-7xx Models, ERX-14xx Models, and ERX-310 Router

Interface Type

Description

Interface Specifier

Example

atm

ATM interface or
ATM 1483 subinterface

Refer to the individual formats listed below.
  • ATM interface or subinterface

 

To configure an ATM interface or subinterface:

slot/port[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • subinterface—Number of the subinterface in the range 1–2147483647

atm 3/2.6
  • ATM 1483 subinterface

 

To display information about an ATM 1483 subinterface by using show commands:

slot/port/vpi/vci

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • vpi—Virtual path identifier of the PVC on this ATM 1483 subinterface; allowable numeric range depends on the module capabilities and current configuration
  • vci—Virtual circuit identifier of the PVC on this ATM 1483 subinterface; allowable numeric range depends on the module capabilities and current configuration

atm 3/2/1/2

fastEthernet

IEEE 802.3 Fast Ethernet (FE) interface

slot/port[.subinterface1[.subinterface2 ] ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module or port 0 for the Fast Ethernet management port on the SRP I/O module

The meaning of the subinterface variables depends on the configuration context. You can configure Fast Ethernet interfaces with or without VLANS.

  • VLANs:
    • subinterface1—Number of the VLAN subinterface in the range 1–2147483647; no more than 4096 VLAN subinterfaces per Fast Ethernet physical port
    • subinterface2—When using PPPoE, the number of the PPPoE subinterface in the range 1–2147483647; no more than 4094 PPPoE subinterfaces per Fast Ethernet physical port
  • No VLANs:
    • subinterface1—When using PPPoE, the number of the PPPoE subinterface in the range 1–2147483647; no more than 4094 PPPoE subinterfaces per Fast Ethernet physical port
    • subinterface2—Not used

fastEthernet 3/2.6.20

gigabitEthernet

IEEE 802.3 Gigabit Ethernet (GE) interface

slot/port[.subinterface1[.subinterface2 ] ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module

The meaning of the subinterface variables depends on the configuration context. You can configure Gigabit Ethernet interfaces with or without VLANs.

  • VLANs:
    • subinterface1—Number of the VLAN subinterface in the range 1–2147483647; no more than 4096 VLAN subinterfaces per Gigabit Ethernet physical port
    • subinterface2—When using PPPoE, the number of the PPPoE subinterface in the range 1–2147483647; no more than 4094 PPPoE subinterfaces per Gigabit Ethernet physical port
  • No VLANs:
    • subinterface1—When using PPPoE, the number of the PPPoE subinterface in the range 1–2147483647; no more than 4094 PPPoE subinterfaces per Gigabit Ethernet physical port
    • subinterface2—Not used

gigabitEthernet 3/0.6.20

lag

IEEE 802.3ad link aggregation group (LAG) interface

bundle-name[.subinterface ]

  • bundle-name—Name of the bundle
  • subinterface—Number of the LAG subinterface in the range 1–2147483647

lag paris.2

loopback

Loopback interface

  integer

  • integer—Integer in the range
    1–4294967293

loopback 20

mlframe-relay

Multilink frame relay interface

bundle-name[.subinterface ]

  • bundle-name—Name of the bundle
  • subinterface—Number of the MLFR subinterface in the range 1–4294967293

mlframe-relay boston.1

mlppp

Multilink PPP interface

  bundle-name

  • bundle-name—Name of the bundle

mlppp chicago

mplsL2shim

MPLS shim interface

slot/port[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • subinterface—Number of the subinterface in the range 1–2147483647

mplsL2shim 3/2.1

mplsMajor

MPLS major interface

slot/port[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • subinterface—Number of the subinterface in the range 1–2147483647

mplsMajor 3/2.1

mplsMinor

MPLS minor interface

[ vr:]tunnel-name

  • vr—Name of a virtual router
  • tunnel-name—Name of the tunnel

mplsMinor lsp-02020202-1-4

null

Null interface, which acts as a data sink and cannot forward or receive traffic. You cannot configure values on the null interface.

0

null 0

pos

Packet over SONET (POS) interface

slot/port[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • subinterface—Number of the subinterface in the range 1–2147483647

pos 3/2

serial

CT3, E3 Frame, T3 Frame, or cOCx/STMx interface

Refer to the individual formats listed below.
  • CT3

 

slot/port:channel/subchannel[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models) and 0–13 (ERX-14xx models)
  • port—Port number on the I/O module
  • channel—Number of a T1 channel on a CT3 module; in the range 1–28
  • subchannel—Number of the channel group associated with a range of DS0 timeslots on a CT3 module; in the range 1–28
  • subinterface—Number of the subinterface in the range 1–2147483647

serial 3/2:20/15
  • E3/T3 Frame

 

slot/port[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models) and 0–13 (ERX-14xx models)
  • port—Port number on the I/O module
  • subinterface—Number of the subinterface in the range 1–2147483647

serial 3/2
  • cOCx/STMx:
    unframed E1

 

slot/port:path-channel/path-payload/
tributary-group/tributary-number/
channelNumber[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • path-channel—Number of the STS-1or STM-0 line in the range 1–2147483648
  • path-payload—Number of the payload within the path
  • tributary-group—Number of the tributary group within the path
  • tributary-number—Number of the tributary within the group
  • channelNumber—1 (the router assigns the number one to an unframed E1 channel)
  • subinterface—Number of the subinterface in the range 1–2147483647

serial 3/0:10/1/2/2/1
  • cOCx/STMx: fractional E1/T1

 

slot/port:path-channel/path-payload/
tributary-group/tributary-number/
channel-group[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • path-channel—Number of the STS-1or STM-0 line in the range 1–2147483648
  • path-payload—Number of the payload within the path
  • tributary-group—Number of the tributary group within the path
  • tributary-number—Number of the tributary within the group
  • channel-group—Number of a fractional T1 or E1 line
  • subinterface—Number of the subinterface in the range 1–2147483647

serial 3/0:10/1/2/2/1
  • cOCx/STMx: unchannelized DS3

 

slot/port:path-channel/ds3-channel-number
[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • path-channel—Number of the STS-1or STM-0 line in the range 1–2147483648
  • ds3-channel-number—Number of a T3 channel
  • subinterface—Number of the subinterface in the range 1–2147483647

serial 3/0:1/1
  • cOCx/STMx: DS3 channelized to DS0

 

slot/port:path-channel/ds3-channel-number/
ds1-channel-number/subchannel-number
[.subinterface ]

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • path-channel—Number of the STS-1or STM-0 line in the range 1–2147483648
  • ds3-channel-number—Number of a T3 channel
  • ds1-channel-number—Number of a T1 channel
  • subchannel-number—Number of a fractional T1 channel
  • subinterface—Number of the subinterface in the range 1–2147483647

serial 3/0:1/1/10/15

sonet – line layer

Line layer of a SONET/SDH interface

slot/port

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module

sonet 3/0

sonet – path layer

Path layer of a SONET/SDH interface

slot/port:path-channel

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module
  • path-channel—Number of the STS-1or STM-0 line in the range 1–2147483648

sonet 3/0:2

sonet – section layer

Section layer of a SONET/SDH interface

slot/port

  • slot—Number of the chassis slot in the range 0–6 (ERX-7xx models), 0–13 (ERX-14xx models), and 0–2 (ERX-310 router)
  • port—Port number on the I/O module

sonet 3/0

tunnel

Tunnel interface

tunnel-type:tunnel-name[.subinterface ]

  • tunnel-type—Type of the tunnel: dvmrp, gre, ipsec, l2tp, or mpls
  • tunnel-name—Name of the tunnel
  • subinterface—For GRE tunnels, number of the subinterface in the range 1–2147483647

tunnel gre:boston

Table 5: Interface Types and Specifiers for E120 Router and E320 Router

Interface Type

Description

Interface Specifier

Example

atm

ATM interface or
ATM 1483 subinterface

Refer to the individual formats listed below.
  • ATM interface or subinterface

 

To configure an ATM interface or subinterface:

slot/adapter/port[.subinterface ]

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA
  • subinterface—Number of the subinterface in the range 1–2147483647

atm 3/1/7.6
  • ATM 1483 subinterface

 

To display information about an ATM 1483 subinterface by using show commands:

slot/adapter/port/vpi/vci

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA
  • vpi—Virtual path identifier of the PVC on this ATM 1483 subinterface; numeric range for the E120 and E320 routers is 0–255
  • vci—Virtual circuit identifier of the PVC on this ATM 1483 subinterface; numeric range for the E120 and E320 routers is 1–65535

atm 3/1/7/1/2

fastEthernet

(for Fast Ethernet management port on SRP IOA)

IEEE 802.3 Fast Ethernet (FE) interface

  slot/adapter/port

  • slot—Number of the chassis slot, either 6 or 7
  • adapter—Identifier for the SRP I/O adapter (IOA) within the chassis slot; always 0
  • port—Port number on the SRP IOA; always 0

fastEthernet 6/0/0

gigabitEthernet

IEEE 802.3 Gigabit Ethernet (GE) interface

slot/adapter/port[.subinterface1[.subinterface2 ] ]

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA

    The meaning of the subinterface variables depends on the configuration context. You can configure Gigabit Ethernet interfaces with or without VLANs.

  • VLANs:
    • subinterface1—Number of the VLAN subinterface in the range 1–2147483647; no more than 4096 VLAN subinterfaces per Gigabit Ethernet physical port
    • subinterface2—When using PPPoE, the number of the PPPoE subinterface in the range 1–2147483647; no more than 4094 PPPoE subinterfaces per Gigabit Ethernet physical port
  • No VLANs:
    • subinterface1—When using PPPoE, the number of the PPPoE subinterface in the range 1–2147483647; no more than 4094 PPPoE subinterfaces per Gigabit Ethernet physical port
    • subinterface2—Not used

gigabitEthernet 4/0/1.20

lag

IEEE 802.3ad link aggregation group (LAG) interface

bundle-name[.subinterface ]

  • bundle-name—Name of the bundle
  • subinterface—Number of the LAG subinterface in the range 1–2147483647

lag paris.2

mplsL2shim

MPLS shim interface

slot/adapter/port[.subinterface ]

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA
  • subinterface—Number of the subinterface in the range 1–2147483647

mplsL2shim 3/0/2.1

mplsMajor

MPLS major interface

slot/adapter/port[.subinterface ]

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA
  • subinterface—Number of the subinterface in the range 1–2147483647

mplsMajor 3/0/2.1

mplsMinor

MPLS minor interface

[ vr:]tunnel-name

  • vr—Name of a virtual router
  • tunnel-name—Name of the tunnel

mplsMinor lsp-02020202-1-4

pos

Packet over SONET (POS) interface

slot/adapter/port

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA

pos 5/0/0

sonet – line layer

Line layer of a SONET/SDH interface

slot/adapter/port

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA

sonet 3/0/0

sonet – path layer

Path layer of a SONET/SDH interface

slot/adapter/port

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA

sonet 3/0/0

sonet – section layer

Section layer of a SONET/SDH interface

slot/adapter/port

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot, either 0 or 1, where:
    • 0 indicates that the IOA is installed in the right IOA bay (E120 router) or the upper IOA bay (E320 router).
    • 1 indicates that the IOA is installed in the left IOA bay (E120 router) or the lower IOA bay (E320 router).
  • port—Port number on the IOA

sonet 3/0/0

tenGigabitEthernet

IEEE 802.3ae 10-Gigabit Ethernet (GE) interface

slot/adapter/port[.subinterface1[.subinterface2 ] ]

  • slot—Number of the chassis slot in the range 0–5 (E120 router) and 0–5 or 11–16 (E320 router)
  • adapter—Identifier for the IOA within the chassis slot. 0 indicates that this a full-height IOA.
  • port—Port number on the IOA

The meaning of the subinterface variables depends on the configuration context. You can configure 10-Gigabit Ethernet interfaces with or without VLANs.

  • VLANs:
    • subinterface1—Number of the VLAN subinterface in the range 1–2147483647; no more than 4096 VLAN subinterfaces per 10-Gigabit Ethernet physical port
    • subinterface2—When using PPPoE, the number of the PPPoE subinterface in the range 1–2147483647; no more than 4094 PPPoE subinterfaces per 10-Gigabit Ethernet physical port
  • No VLANs:
    • subinterface1—When using PPPoE, the number of the PPPoE subinterface in the range 1–2147483647; no more than 4094 PPPoE subinterfaces per 10-Gigabit Ethernet physical port
    • subinterface2—Not used

tenGigabitEthernet 4/0/1.20

tunnel

Tunnel interface

  tunnel-type:tunnel-name[.subinterface]

  • tunnel-type—Type of the tunnel: dvmrp, gre, l2tp, or mpls
  • tunnel-name—Name of the tunnel
  • subinterface—For GRE tunnels, number of the subinterface in the range 1–2147483647

tunnel gre:boston

 

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