show interfaces lbi (Looping-back Interface)
Syntax
show interfaces lbi <brief | detail | extensive | terse> <descriptions> <media> <routing-instance instance-name> <snmp-index snmp-index> <statistics>
Description
Display status information about the looping-back interface (LBI).
Options
| lbi |
Display standard information about the looping-back interface. |
| brief | detail | extensive | terse |
(Optional) Display the specified level of output. |
| descriptions |
(Optional) Display interface description strings. |
| media |
(Optional) Display media-specific information about network interfaces. |
| routing-instance instance-name |
(Optional) Display information for the specified routing instance. |
| snmp-index snmp-index |
(Optional) Display information for the specified SNMP index of the interface. |
| statistics |
(Optional) Display static interface statistics. |
Required Privilege Level
view
Output Fields
The table below lists the output fields for the show interfaces lbi
command. Output fields are listed in the approximate order in which they appear.
|
Field Name |
Field Description |
Level of Output |
|---|---|---|
| Physical Interface | ||
|
Physical interface |
Name of the physical interface. |
All levels |
|
Enabled |
State of the interface. Possible values are described in the “Enabled Field” section under Common Output Fields Description. |
All levels |
|
Interface index |
Physical interface's index number, which reflects its initialization sequence. |
detail extensive none |
|
SNMP ifIndex |
SNMP index number for the physical interface. |
detail extensive none |
|
Generation |
Unique number for use by Juniper Networks technical support only. |
detail extensive |
|
Type |
Type of interface. |
All levels |
|
Link-level type |
Encapsulation used on the physical interface. |
All levels |
|
MTU |
MTU size on the physical interface. |
All levels |
|
Speed |
Speed at which the interface is running. |
All levels |
|
Hold-times |
Current interface hold-time up and hold-time down, in milliseconds. |
detail extensive |
|
Device flags |
Information about the physical device. Possible values are described in the “Device Flags” section under Common Output Fields Description. |
All levels |
|
Input Rate |
Input rate in bits per second (bps) and packets per second (pps). |
None specified |
|
Output Rate |
Output rate in bps and pps. |
None specified |
|
Statistics last cleared |
Time when the statistics for the interface were last set to zero. |
detail extensive |
|
Traffic statistics |
Number and rate of bytes and packets received and transmitted on the physical interface.
|
detail extensive |
| Logical Interface | ||
|
Logical interface |
Name of the logical interface. |
All levels |
|
Index |
Logical interface index number, which reflects its initialization sequence. |
detail extensive none |
|
SNMP ifIndex |
Logical interface SNMP interface index number. |
detail extensive none |
|
Generation |
Unique number for use by Juniper Networks technical support only. |
detail extensive |
|
Flags |
Information about the logical interface. Possible values are described in the “Interface Flags” section under Common Output Fields Description. |
All levels |
|
Encapsulation |
Encapsulation on the logical interface. |
All levels |
|
Input packets |
Number of packets received on the logical interface. |
None specified |
|
Output packets |
Number of packets transmitted on the logical interface. |
None specified |
|
Bandwidth |
Bandwidth allotted to the logical interface, in kilobytes per second. |
All levels |
|
Traffic statistics |
Total number of bytes and packets received and transmitted on the logical interface. These statistics are the sum of the local and transit statistics. When a burst of traffic is received, the value in the output packet rate field might briefly exceed the peak cell rate. It takes awhile (generally, less than 1 second) for this counter to stabilize.
|
detail extensive |
|
Transit statistics |
Statistics for traffic transiting the router. When a burst of traffic is received, the value in the output packet rate field might briefly exceed the peak cell rate. It takes awhile (generally, less than 1 second) for this counter to stabilize. |
detail extensive |
|
protocol-family |
Protocol family configured on the logical interface. Possible values are described in the “Family Flags” section under Common Output Fields Description. |
brief |
|
Protocol |
Protocol family configured on the logical interface. Possible values are described in the “Family Flags” section under Common Output Fields Description. |
detail extensive none |
|
MTU |
Maximum transmission unit size on the logical interface. |
detail extensive none |
|
Maximum labels |
Maximum number of MPLS labels configured for the MPLS protocol family on the logical interface. |
detail extensive none |
|
Generation |
Unique number for use by Juniper Networks technical support only. |
detail extensive |
|
Route Table |
Routing table in which the logical interface address is located. For example, 0 refers to the routing table inet.0. |
detail extensive |
|
Flags |
Information about protocol family flags. Possible values are described in the “Family Flags” section under Common Output Fields Description. |
detail extensive none |
Sample Output
- show interfaces lbi
- show interfaces lbi brief
- show interfaces lbi detail
- show interfaces lbi extensive
show interfaces lbi
user@host> show interfaces lbi
Physical interface: lbi, Enabled, Physical link is Up
Interface index: 1214, SNMP ifIndex: 24328
Type: Software-Pseudo, Link-level type: LBI, MTU: Unlimited, Speed: Unlimited, Auto-negotiation: Disabled
Device flags : Present Running
Interface flags: None No-Forwarding-Viable
Last flapped : Never
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
Logical interface lbi.0 (Index 1002) (SNMP ifIndex 24329)
Flags: Up Point-To-Point Encapsulation: lbi
Input packets : 0
Output packets: 0
Protocol inet
Max nh cache: 100000, New hold nh limit: 100000, Curr nh cnt: 0, Curr new hold cnt: 0, NH drop cnt: 0, Hold NH RED drop cnt: 0
MTU: Unlimited
Flags: Sendbcast-pkt-to-re
Protocol inet6
Max nh cache: 100000, New hold nh limit: 100000, Curr nh cnt: 0, Curr new hold cnt: 0, NH drop cnt: 0, Hold NH RED drop cnt: 0
MTU: Unlimited
Flags: Is-Primary
Protocol mpls, MTU: Unlimited, Maximum labels: 3
Flags: Is-Primary
show interfaces lbi brief
user@host> show interfaces lbi brief
Physical interface: lbi, Enabled, Physical link is Up
Type: Software-Pseudo, Link-level type: LBI, MTU: Unlimited, Clocking: Unspecified, Speed: Unlimited, Auto-negotiation: Disabled
Device flags : Present Running
Interface flags: None No-Forwarding-Viable
Logical interface lbi.0
Flags: Up Point-To-Point Encapsulation: lbi
inet
inet6
mpls
show interfaces lbi detail
user@host> show interfaces lbi detail
Physical interface: lbi, Enabled, Physical link is Up
Interface index: 1214, SNMP ifIndex: 24328, Generation: 588410520671
Type: Software-Pseudo, Link-level type: LBI, MTU: Unlimited, Clocking: Unspecified, Speed: Unlimited, Auto-negotiation: Disabled
Device flags : Present Running
Interface flags: None No-Forwarding-Viable
Link type : Unspecified
Physical info : Unspecified
Hold-times : Up 0 ms, Down 0 ms
Damping : half-life: 0 sec, max-suppress: 0 sec, reuse: 0, suppress: 0, state: unsuppressed
Current address: Unspecified, Hardware address: Unspecified
Alternate link address: Unspecified
Last flapped : Never
Statistics last cleared: Never
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Logical interface lbi.0 (Index 1002) (SNMP ifIndex 24329) (Generation 588410520674)
Flags: Up Point-To-Point Encapsulation: lbi
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Local statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Transit statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Protocol inet
Max nh cache: 100000, New hold nh limit: 100000, Curr nh cnt: 0, Curr new hold cnt: 0, NH drop cnt: 0, Hold NH RED drop cnt: 0
MTU: Unlimited, Generation: 588410520678, Route table: 0
Flags: Sendbcast-pkt-to-re
Protocol inet6
Max nh cache: 100000, New hold nh limit: 100000, Curr nh cnt: 0, Curr new hold cnt: 0, NH drop cnt: 0, Hold NH RED drop cnt: 0
MTU: Unlimited, Generation: 588410520679, Route table: 0
Flags: Is-Primary
Protocol mpls, MTU: Unlimited, Maximum labels: 3, Generation: 588410520680, Route table: 0
Flags: Is-Primary
show interfaces lbi extensive
user@host> show interfaces lbi extensive
Physical interface: lbi, Enabled, Physical link is Up
Interface index: 1216, SNMP ifIndex: 513, Generation: 609885357185
Type: Software-Pseudo, Link-level type: LBI, MTU: Unlimited, Clocking: Unspecified, Speed: Unlimited, Auto-negotiation: Disabled
Device flags : Present Running
Interface flags: None
Link type : Unspecified
Physical info : Unspecified
Hold-times : Up 0 ms, Down 0 ms
Damping : half-life: 0 sec, max-suppress: 0 sec, reuse: 0, suppress: 0, state: unsuppressed
Current address: Unspecified, Hardware address: Unspecified
Alternate link address: Unspecified
Last flapped : Never
Statistics last cleared: Never
Traffic statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0,
Resource errors: 0
Output errors:
Carrier transitions: 0, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0,
ECN Marked packets: 0
Logical interface lbi.0 (Index 1002) (SNMP ifIndex 514) (Generation 609885357187)
Flags: Up Point-To-Point Encapsulation: lbi DF
Traffic statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Local statistics:
Input bytes : 0
Output bytes : 0
Input packets: 0
Output packets: 0
Transit statistics:
Input bytes : 0 0 bps
Output bytes : 0 0 bps
Input packets: 0 0 pps
Output packets: 0 0 pps
Protocol mpls, MTU: Unlimited, Maximum labels: 3, Generation: 609885357189, Route table: 0
Flags: Is-Primary
Release Information
Command introduced before Junos OS Release 7.4.
lbi support extended to command in Junos OS Release 25.2R1.