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show interfaces (Multicast Tunnel)
Syntax
Release Information
Command introduced before Junos OS Release 7.4.
Description
Display status information about the specified multicast tunnel interface and its logical encapsulation and de-encapsulation interfaces.
Options
interface-type | — | On M Series and T Series routers, the interface type is mt-fpc/pic/port. On J Series routers, the interface type is mt-pim/0/port. |
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. |
snmp-index snmp-index | — | (Optional) Display information for the specified SNMP index of the interface. |
statistics | — | (Optional) Display static interface statistics. |
Additional Information
The multicast tunnel interface has two logical interfaces: encapsulation and de-encapsulation. These interfaces are automatically created by the Junos OS for every multicast-enabled VPN routing and forwarding (VRF) instance. The encapsulation interface carries multicast traffic traveling from the edge interface to the core interface. The de-encapsulation interface carries traffic coming from the core interface to the edge interface.
Required Privilege Level
view
List of Sample Output
show interfaces (Multicast Tunnel)show interfaces brief (Multicast Tunnel)
show interfaces detail (Multicast Tunnel)
show interfaces extensive (Multicast Tunnel)
show interfaces (Multicast Tunnel Encapsulation)
show interfaces (Multicast Tunnel De-Encapsulation)
Output Fields
Table 1 lists the output fields for the show interfaces (Multicast Tunnel) command. Output fields are listed in the approximate order in which they appear.
Table 1: Multicast Tunnel show interfaces Output Fields
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 |
Interface flags | Information about the interface. Possible values are described in the “Interface 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.
| All levels |
Sample Output
show interfaces (Multicast Tunnel)
user@host> show interfaces mt-1/2/0 Physical interface: mt-1/2/0, Enabled, Physical link is Up Interface index: 145, SNMP ifIndex: 41 Type: Multicast-GRE, Link-level type: GRE, MTU: Unlimited, Speed: 800mbps Device flags : Present Running Interface flags: SNMP-Traps Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps)
show interfaces brief (Multicast Tunnel)
user@host> show interfaces mt-1/2/0 brief Physical interface: mt-1/2/0, Enabled, Physical link is Up Type: Multicast-GRE, Link-level type: GRE, MTU: Unlimited, Speed: 800mbps Device flags : Present Running Interface flags: SNMP-Traps
show interfaces detail (Multicast Tunnel)
user@host> show interfaces mt-1/2/0 detailPhysical interface: mt-1/2/0, Enabled, Physical link is Up Interface index: 145, SNMP ifIndex: 41, Generation: 28 Type: Multicast-GRE, Link-level type: GRE, MTU: Unlimited, Speed: 800mbps Hold-times : Up 0 ms, Down 0 ms Device flags : Present Running Interface flags: SNMP-Traps 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
show interfaces extensive (Multicast Tunnel)
user@host> show interfaces mt-1/2/0 extensivePhysical interface: mt-1/2/0, Enabled, Physical link is Up Interface index: 145, SNMP ifIndex: 41, Generation: 28 Type: Multicast-GRE, Link-level type: GRE, MTU: Unlimited, Speed: 800mbps Hold-times : Up 0 ms, Down 0 ms Device flags : Present Running Interface flags: SNMP-Traps 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
show interfaces (Multicast Tunnel Encapsulation)
user@host> show interfaces mt-3/1/0.32768Logical interface mt-3/1/0.32768 (Index 67) (SNMP ifIndex 0)
Flags: Point-To-Point SNMP-Traps 0x4000
IP-Header 239.1.1.1:10.255.70.15:47:df:64:0000000800000000
Encapsulation: GRE-NULL
Input packets : 0
Output packets: 2
Protocol inet, MTU: Unlimited
Flags: Noneshow interfaces (Multicast Tunnel De-Encapsulation)
user@host> show interfaces mt-3/1/0.49152Logical interface mt-3/1/0.49152 (Index 74) (SNMP ifIndex 0)
Flags: Point-To-Point SNMP-Traps 0x6000 Encapsulation: GRE-NULL
Input packets : 0
Output packets: 2
Protocol inet, MTU: Unlimited
Flags: None