Examples: Bundling Multiple PPP Links on a Single Link Using MLPPP
Example: Configuring a Multilink Interface with MLPPP
Example: Configuring a Multilink Interface with MLPPP over ATM 2 Interfaces
See also
Example: Configuring an MLPPP Bundle
This example shows how to configure an MLPPP bundle to increase traffic bandwidth.
Requirements
Before you begin, you should have two MX Series routers (MX240, MX480, or MX960 routers) configured with at least two serial interfaces that communicate over serial links.
Overview
In this example, you create the MLPPP bundle lsq-0/0/0.0 at the logical unit level of the link services interface lsq-0/0/0 on the MX Series routers R0 and R1. You then add the two serial interfaces se-1/0/0 and se-1/0/1 as constituent links to the multilink bundle. In Figure 1, your company's branch office is connected to its main branch using routers R0 and R1. You transmit data and voice traffic on two low-speed 1-Mbps serial links. To increase bandwidth, you configure MLPPP and join the two serial links se-1/0/0 and se-1/0/1 into the multilink bundle lsq-0/0/0.0. Then you configure LFI and CoS on R0 and R1 to enable them to transmit voice packets ahead of data packets.

Configuration
CLI Quick Configuration
To quickly configure this example, copy the following commands, paste them into a text file, remove any line breaks, change any details necessary to match your network configuration, and then copy and paste the commands into the CLI at the [edit] hierarchy level.
Step-by-Step Procedure
The following example requires you to navigate various levels in the configuration hierarchy. For instructions on how to do that, see Using the CLI Editor in Configuration Mode in the CLI User Guide.
To configure MLPPP bundle:
- Create an interface on both the routers.[edit]user@host# edit interfaces lsq-0/0/0 unit 0
- Configure a family inet and define the IP address on device
R0.[edit interfaces lsq-0/0/0 unit 0]user@host# set family inet address 10.0.0.10/24
- Configure a family inet and define the IP address on device
R1.[edit interfaces lsq-0/0/0 unit 0]user@host# set family inet address 10.0.0.9/24
- Specify the names of the constituent links to be added
to the multilink bundle on both the routers.[edit interfaces]user@host# edit se-1/0/0 unit 0user@host# set family mlppp bundle lsq-0/0/0.0[edit interfaces]user@host# edit se-1/0/1 unit 0user@host# set family mlppp bundle lsq-0/0/0.0
- Set the serial options to the same values for both interfaces
on R0.
Note R0 is set as a DCE device. The serial options are not set for interfaces on R1. You can set the serial options according to your network setup.
[edit interfaces]user@host# set se-1/0/0 serial-options clocking-mode dce clock-rate 2.0mhzuser@host# set se-1/0/1 serial-options clocking-mode dce clock-rate 2.0mhz
Results
From configuration mode, confirm your configuration by entering the show interfaces lsq-0/0/0, show interfaces se-1/0/0, and show interfaces se-1/0/1 commands for R0 and R1. If the output does not display the intended configuration, repeat the configuration instructions in this example to correct it.
If you are done configuring the router, enter commit from configuration mode.
Verification
Confirm that the configuration is working properly:
Verifying the MLPPP Bundle
Purpose
Verify that the constituent links are added to the bundle correctly.
Action
From operational mode, enter the show interfaces lsq-0/0/0 statistics command.
Example: Configuring a Link Services Interface with MLPPP
See also
Example: Configuring Inline MLPPP and Multilink Frame Relay End-to-End (FRF.15) for WAN Interfaces
Inline Multilink PPP (MLPPP), Multlink Frame Relay (FRF.16), and Multilink Frame Relay End-to-End (FRF.15) for time-division multiplexing (TDM) WAN interfaces provide bundling services through the Packet Forwarding Engine without requiring a PIC or Dense Port Concentrator (DPC).
This example shows how to configure a Multilink PPP (MLPPP) bundle and Multilink Frame Relay End-to-End (FRF.15) for additional bandwidth, load balancing, and redundancy by aggregating low-speed links such as T1 (WAN interfaces).
Requirements
This example uses the following hardware and software components:
Two MX Series Routers
Junos OS Release 14.1 or later release
Before you begin, configure two MX Series routers (the MX240, MX480, or MX960) with at least two WAN interfaces that communicate over T1 links.
Overview
Traditionally, bundling services are used to bundle multiple low-speed links to create a higher bandwidth pipe. This combined bandwidth is available to traffic from all links and supports link fragmentation and interleaving (LFI) on the bundle, reducing high-priority packet transmission delay.
This support includes multiple links on the same bundle as well as multiclass extension for MLPPP. Through this service you can enable bundling services without additional DPC slots to support Service DPC and free up the slots for other MICs.
Configuring inline MLPPP for WAN interfaces benefits the following services:
CE-PE link for Layer 3 VPN and DIA service with public switched telephone networks (PSTN)-based access networks
PE-P link when PSTN is used for MPLS networks
In this example, to increase bandwidth, you configure MLPPP and join the T1 links into the multilink bundle. You aggregate T1 links to create the MLFR FRF.15 bundle on two MX Series routers, R0 and R1, and set the interface to lsq-. You configure logical units on the lsq- interface and set the family type to inet and an IP address. Then you configure an IP address for the multilink bundle on the unit level of the interface. You define the multilink bundle as an MLFR FRF.15 bundle by specifying the MLFR end-to-end encapsulation type. You specify the names of the constituent links to be added to the multilink bundle and set the encapsulation type to frame-relay. You then define Router R0 as a DCE device and Router R1 as a DTE device. You set the DLCI value (range is from 16 through 1022). Finally, you set the multilink bundle to lsq-.
Topology

Configuration
CLI Quick Configuration
To quickly configure this example, copy the following commands, paste them into a text file, remove any line breaks, change any details necessary to match your network configuration, and then copy and paste the commands into the CLI at the [edit] hierarchy level.
Device R0
Device R1
To Configure Router R0
Step-by-Step Procedure
The following example requires you to navigate various levels in the configuration hierarchy. For information about navigating the CLI, see Using the CLI Editor in Configuration Mode in the CLI User Guide.
To configure inline MLPPP and Multilink Frame Relay End-to-End (FRF.15) for WAN Interfaces:
- Enable inline Layer 2 bundling services.[edit]user@R0# set chassis fpc 1 pic 0 multi-link-layer-2-inline
- Create the interface, specify a logical unit on the multilink
bundle, and set the family type.[edit]user@R0# set interfaces lsq-1/0/0 unit 0 family inet address 192.0.2.1/24
- Specify the encapsulation type as MLPPP.[edit]user@R0# set interfaces lsq-1/0/0 unit 0 encapsulation multilink-ppp
- Create the interface, specify another logical unit on
the multilink bundle, and set the family type.[edit]user@R0# set interfaces lsq-1/0/0 unit 1 family inet address 198.51.100.1/24
- Specify another unit and define the multilink bundle as
an MLFR FRF.15 bundle.[edit]user@R0# set interfaces lsq-1/0/0 unit 1 encapsulation multilink-frame-relay-end-to-end
- Specify the names of the constituent links to be added
to the multilink bundle.[edit]user@R0# set interfaces t1-1/0/0:1 unit 0 family mlppp bundle lsq-1/0/0.0user@R0# set interfaces t1-1/0/0:2 unit 0 family mlppp bundle lsq-1/0/0.0
- Define the router as a DCE device.[edit]user@R0# set interfaces t1-1/0/0:3 dceuser@R0# set interfaces t1-1/0/0:4 dce
- Specify the DLCI as well as the multilink bundle to which
the interface is to be added.[edit ]user@R0# set interfaces t1-1/0/0:3 unit 0 dlci 1 family mlfr-end-to-end bundle lsq-1/0/0.1user@R0# set interfaces t1-1/0/0:4 unit 0 dlci 2 family mlfr-end-to-end bundle lsq-1/0/0.1
- Specify the names of the constituent links to be added
to the multilink bundle.[edit]user@R0# set interfaces t1-1/0/0:3 encapsulation frame-relayuser@R0# set interfaces t1-1/0/0:4 encapsulation frame-relay
To Configure Router R1
Step-by-Step Procedure
To configure inline MLPPP and Multilink Frame Relay End-to-End (FRF.15) for WAN Interfaces:
- Enable inline Layer 2 bundling services.[edit]user@R1# set chassis fpc 2pic 0 multi-link-layer-2-inline
- Create the interface, specify a logical unit on the multilink
bundle and set the family type.[edit]user@R1# set interfaces lsq-2/0/0 unit 0 family inet address 192.0.2.2/24
- Specify the encapsulation type as MLPPP.[edit]user@R1# set interfaces lsq-2/0/0 unit 0 encapsulation multilink-ppp
- Create the interface, specify another logical unit on
the multilink bundle and set the family type.[edit]user@R1# set interfaces lsq-2/0/0 unit 1 family inet address 198.51.100.2/24
- Specify another unit and define the multilink bundle as
an MLFR FRF.15 bundle.[edit]user@R1# set interfaces lsq-2/0/0 unit 1 encapsulation multilink-frame-relay-end-to-end
- Specify the names of the constituent links to be added
to the multilink bundle.[edit]user@R1# set interfaces t1-2/0/0:1 unit 0 family mlppp bundle lsq-2/0/0.0user@R1# set interfaces t1-2/0/0:2 unit 0 family mlppp bundle lsq-2/0/0.0
- Specify the DLCI as well as the multilink bundle to which
the interface is to be added.[edit ]user@R1# set interfaces t1-2/0/0:3 unit 0 dlci 1 family mlfr-end-to-end bundle lsq-2/0/0.1user@R1# set interfaces t1-2/0/0:4 unit 0 dlci 2 family mlfr-end-to-end bundle lsq-2/0/0.1
- Specify the names of the constituent links to be added
to the multilink bundle.[edit]user@R1# set interfaces t1-2/0/0:3 encapsulation frame-relayuser@R1# set interfaces t1-2/0/0:4 encapsulation frame-relay
Results
For Router R0, from configuration mode, confirm your configuration by entering the show chassis, show interfaces lsq-1/0/0, show interfaces t1-1/0/0:1, show interfaces t1-1/0/0:2, show interfaces t1-1/0/0:3, and show interfaces t1-1/0/0:4 commands.
For Router R1, from configuration mode, confirm your configuration by entering the show chassis, show interfaces lsq-2/0/0, show interfaces t1-2/0/0:1, show interfaces t1-2/0/0:2, show interfaces t1-2/0/0:3, and show interfaces t1-2/0/0:4 commands.
If the output does not display the intended configuration, repeat the instructions in this example to correct the configuration.
For Router R0:
If you are done configuring the router, enter commit from configuration mode.
For Router R1:
If you are done configuring the router, enter commit from configuration mode.
Verification
Verifying the MLPPP Bundle and the MLFR FRF.15 Configuration
Purpose
Verify that the constituent links are added to the bundle correctly.
Action
From operational mode, run the show interfaces lsq-1/0/0 extensive command.
Sample Output
user@R0> show interfaces lsq-1/0/0:0 extensive Physical interface: lsq-1/0/0, Enabled, Physical link is Up Interface index: 292, SNMP ifIndex: 1065, Generation: 4986 Link-level type: LinkService, MTU: 1504 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000 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 IPv6 transit statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Frame exceptions: Oversized frames 0 Errored input frames 0 Input on disabled link/bundle 0 Output for disabled link/bundle 0 Queuing drops 0 Buffering exceptions: Packet data buffer overflow 0 Fragment data buffer overflow 0 Assembly exceptions: Fragment timeout 0 Missing sequence number 0 Out-of-order sequence number 0 Out-of-range sequence number 0 Hardware errors (sticky): Data memory error 0 Control memory error 0 Egress queues: 8 supported, 4 in use Queue counters: Queued packets Transmitted packets Dropped packets 0 0 0 0 1 0 0 0 2 0 0 0 3 0 0 0 Queue number: Mapped forwarding classes 0 best-effort 1 expedited-forwarding 2 assured-forwarding 3 network-control Logical interface lsq-1/0/0.0 (Index 327) (SNMP ifIndex 113518) (Generation 6213) Flags: Hardware-Down Up Point-To-Point SNMP-Traps 0x4000 Encapsulation: Multilink-PPP Last flapped: 2014-04-24 04:37:39 PDT (00:08:50 ago) Bandwidth: 0 Bundle links information: Active bundle links 0 Removed bundle links 2 Disabled bundle links 0 Bundle options: MRRU 1504 Remote MRRU N/A Drop timer period 32767 Inner PPP Protocol field compression enabled Sequence number format long (24 bits) Fragmentation threshold 0 Links needed to sustain bundle 1 Multilink classes 0 Link layer overhead 4.0 % Multilink class 0 status: Received sequence number 0x0 Transmit sequence number 0xffffffff Packet drops 0 (0 bytes) Fragment drops 0 (0 bytes) MRRU exceeded 0 Fragment timeout 0 Missing sequence number 0 Out-of-order sequence number 0 Out-of-range sequence number 0 Packet data buffer overflow 0 Fragment data buffer overflow 0 Multilink class drop timeout 0 (ms) Statistics Frames fps Bytes bps Bundle: Multilink: Input : 0 0 0 0 Output: 0 0 0 0 Network: Input : 0 0 0 0 Output: 0 0 0 0 IPV6 Transit Statistics Packets Bytes Network: Input : 0 0 Output: 0 0 Link: t1-1/0/0:1.0 Up time: 00:00:00 Input : 0 0 0 0 Output: 0 0 0 0 t1-1/0/0:2.0 Up time: 00:00:00 Input : 0 0 0 0 Output: 0 0 0 0 Multilink detail statistics: Bundle: Fragments: Input : 0 0 0 0 Output: 0 0 0 0 Non-fragments: Input : 0 0 0 0 Output: 0 0 0 0 LFI: Input : 0 0 0 0 Output: 0 0 0 0 NCP state: inet: Not-configured, inet6: Not-configured, iso: Not-configured, mpls: Not-configured Protocol inet, MTU: 1500, Generation: 6263, Route table: 0 Flags: Sendbcast-pkt-to-re, Protocol-Down Addresses, Flags: Dest-route-down Is-Preferred Is-Primary Destination: 192.0.2/24, Local: 192.0.2.1, Broadcast: Unspecified, Generation: 4211 Logical interface lsq-1/0/0.1 (Index 328) (SNMP ifIndex 113519) (Generation 6214) Flags: Up Point-To-Point SNMP-Traps 0x4000 Encapsulation: Multilink-FR Last flapped: 2014-04-24 04:46:00 PDT (00:00:29 ago) Bandwidth: 3072kbps Bundle links information: Active bundle links 2 Removed bundle links 0 Disabled bundle links 0 Bundle options: MRRU 1504 Drop timer period 32767 Inner PPP Protocol field compression enabled Sequence number format short (12 bits) Fragmentation threshold 0 Links needed to sustain bundle 1 Multilink classes 0 Link layer overhead 4.0 % Multilink class 0 status: Received sequence number 0x0 Transmit sequence number 0xffffffff Packet drops 0 (0 bytes) Fragment drops 0 (0 bytes) MRRU exceeded 0 Fragment timeout 0 Missing sequence number 0 Out-of-order sequence number 0 Out-of-range sequence number 0 Packet data buffer overflow 0 Fragment data buffer overflow 0 Multilink class drop timeout 0 (ms) Statistics Frames fps Bytes bps Bundle: Multilink: Input : 0 0 0 0 Output: 0 0 0 0 Network: Input : 0 0 0 0 Output: 0 0 0 0 Link: t1-1/0/0:3.0 Up time: 00:00:29 Input : 0 0 0 0 Output: 0 0 0 0 t1-1/0/0:4.0 Up time: 00:00:29 Input : 0 0 0 0 Output: 0 0 0 0 Multilink detail statistics: Bundle: Fragments: Input : 0 0 0 0 Output: 0 0 0 0 Non-fragments: Input : 0 0 0 0 Output: 0 0 0 0 LFI: Input : 0 0 0 0 Output: 0 0 0 0 Protocol inet, MTU: 1500, Generation: 6264, Route table: 0 Flags: Sendbcast-pkt-to-re Addresses, Flags: Is-Preferred Is-Primary Destination: 198.51.100/24, Local: 198.51.100.1, Broadcast: Unspecified, Generation: 4213
From the operational mode, enter the show interfaces lsq-2/0/0 extensive command.
user@R1> show interfaces lsq-2/0/0 extensive Physical interface: lsq-2/0/0, Enabled, Physical link is Up Interface index: 262, SNMP ifIndex: 44421, Generation: 270 Encapsulation: Multilink-PPPLink-level type: LinkService, MTU: 1504 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000 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 IPv6 transit statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Frame exceptions: Oversized frames 0 Errored input frames 0 Input on disabled link/bundle 0 Output for disabled link/bundle 0 Queuing drops 0 Buffering exceptions: Packet data buffer overflow 0 Fragment data buffer overflow 0 Assembly exceptions: Fragment timeout 0 Missing sequence number 0 Out-of-order sequence number 0 Out-of-range sequence number 0 Hardware errors (sticky): Data memory error 0 Control memory error 0 Egress queues: 8 supported, 4 in use Queue counters: Queued packets Transmitted packets Dropped packets 0 0 0 0 1 0 0 0 2 0 0 0 3 0 0 0 Queue number: Mapped forwarding classes 0 best-effort 1 expedited-forwarding 2 assured-forwarding 3 network-control Logical interface lsq-2/0/0.0 (Index 354) (SNMP ifIndex 44422) (Generation 167) Flags: Up Point-To-Point SNMP-Traps 0x4000 Encapsulation: Multilink-PPPEncapsulation: Multilink-PPP Last flapped: 2014-04-24 04:50:19 PDT (00:00:51 ago) Bandwidth: 3072kbps Bundle links information: Active bundle links 2 Removed bundle links 0 Disabled bundle links 0 Bundle options: MRRU 1504 Remote MRRU 1504 Drop timer period 32767 Inner PPP Protocol field compression enabled Sequence number format long (24 bits) Fragmentation threshold 0 Links needed to sustain bundle 1 Multilink classes 0 Link layer overhead 4.0 % Multilink class 0 status: Received sequence number 0x0 Transmit sequence number 0xffffffff Packet drops 0 (0 bytes) Fragment drops 0 (0 bytes) MRRU exceeded 0 Fragment timeout 0 Missing sequence number 0 Out-of-order sequence number 0 Out-of-range sequence number 0 Packet data buffer overflow 0 Fragment data buffer overflow 0 Multilink class drop timeout 0 (ms) Statistics Frames fps Bytes bps Bundle: Multilink: Input : 0 0 0 0 Output: 0 0 0 0 Network: Input : 0 0 0 0 Output: 0 0 0 0 IPV6 Transit Statistics Packets Bytes Network: Input : 0 0 Output: 0 0 Link: t1-2/0/0:1.0 Up time: 00:00:51 Input : 0 0 0 0 Output: 0 0 0 0 t1-2/0/0:2.0 Up time: 00:00:48 Input : 0 0 0 0 Output: 0 0 0 0 Multilink detail statistics: Bundle: Fragments: Input : 0 0 0 0 Output: 0 0 0 0 Non-fragments: Input : 0 0 0 0 Output: 0 0 0 0 LFI: Input : 0 0 0 0 Output: 0 0 0 0 NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configured Protocol inet, MTU: 1500, Generation: 199, Route table: 0 Flags: Sendbcast-pkt-to-re Addresses, Flags: Is-Preferred Is-Primary Destination: 192.0.2/24, Local: 192.0.2.2, Broadcast: Unspecified, Generation: 153 Logical interface lsq-4/0/0.1 (Index 355) (SNMP ifIndex 44423) (Generation 168) Flags: Up Point-To-Point SNMP-Traps 0x4000 Encapsulation: Multilink-FR Last flapped: 2014-04-24 04:50:19 PDT (00:00:51 ago) Bandwidth: 3072kbps Bundle links information: Active bundle links 2 Removed bundle links 0 Disabled bundle links 0 Bundle options: MRRU 1504 Drop timer period 32767 Inner PPP Protocol field compression enabled Sequence number format short (12 bits) Fragmentation threshold 0 Links needed to sustain bundle 1 Multilink classes 0 Link layer overhead 4.0 % Multilink class 0 status: Received sequence number 0x0 Transmit sequence number 0xffffffff Packet drops 0 (0 bytes) Fragment drops 0 (0 bytes) MRRU exceeded 0 Fragment timeout 0 Missing sequence number 0 Out-of-order sequence number 0 Out-of-range sequence number 0 Packet data buffer overflow 0 Fragment data buffer overflow 0 Multilink class drop timeout 0 (ms) Statistics Frames fps Bytes bps Bundle: Multilink: Input : 0 0 0 0 Output: 0 0 0 0 Network: Input : 0 0 0 0 Output: 0 0 0 0 Link: t1-2/0/0:3.0 Up time: 00:00:51 Input : 0 0 0 0 Output: 0 0 0 0 t1-2/0/0:4.0 Up time: 00:00:51 Input : 0 0 0 0 Output: 0 0 0 0 Multilink detail statistics: Bundle: Fragments: Input : 0 0 0 0 Output: 0 0 0 0 Non-fragments: Input : 0 0 0 0 Output: 0 0 0 0 LFI: Input : 0 0 0 0 Output: 0 0 0 0 Protocol inet, MTU: 1500, Generation: 200, Route table: 0 Flags: Sendbcast-pkt-to-re Addresses, Flags: Is-Preferred Is-Primary Destination: 198.51.100/24, Local: 198.51.100.2, Broadcast: Unspecified, Generation: 155
From operational mode, enter the show interfaces lsq-1/0/0 statistics command.
user@R0> show interfaces lsq-1/0/0 statistics Physical interface: lsq-1/0/0, Enabled, Physical link is Up Interface index: 292, SNMP ifIndex: 1065 Link-level type: LinkService, MTU: 1504 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000 Last flapped : Never Statistics last cleared: Never Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps) Logical interface lsq-1/0/0.0 (Index 327) (SNMP ifIndex 113518) Flags: Up Point-To-Point SNMP-Traps 0x4000 Encapsulation: Multilink-PPP Last flapped: 2014-04-24 04:50:19 PDT (00:01:59 ago) Bandwidth: 3072kbps Bundle links information: Active bundle links 2 Removed bundle links 0 Disabled bundle links 0 Statistics Frames fps Bytes bps Bundle: Multilink: Input : 0 0 0 0 Output: 0 0 0 0 Network: Input : 0 0 0 0 Output: 0 0 0 0 IPV6 Transit Statistics Packets Bytes Network: Input : 0 0 Output: 0 0 Link: t1-1/0/0:1.0 Up time: 00:01:59 Input : 0 0 0 0 Output: 0 0 0 0 t1-1/0/0:2.0 Up time: 00:01:56 Input : 0 0 0 0 Output: 0 0 0 0 NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configured Protocol inet, MTU: 1500 Flags: Sendbcast-pkt-to-re Addresses, Flags: Is-Preferred Is-Primary Destination: 192.0.2/24, Local: 192.0.2.1 Logical interface lsq-1/0/0.1 (Index 328) (SNMP ifIndex 113519) Flags: Up Point-To-Point SNMP-Traps 0x4000 Encapsulation: Multilink-FR Last flapped: 2014-04-24 04:50:29 PDT (00:01:49 ago) Bandwidth: 3072kbps Bundle links information: Active bundle links 2 Removed bundle links 0 Disabled bundle links 0 Statistics Frames fps Bytes bps Bundle: Multilink: Input : 0 0 0 0 Output: 0 0 0 0 Network: Input : 0 0 0 0 Output: 0 0 0 0 Link: t1-1/0/0:3.0 Up time: 00:01:49 Input : 0 0 0 0 Output: 0 0 0 0 t1-1/0/0:4.0 Up time: 00:01:49 Input : 0 0 0 0 Output: 0 0 0 0 Protocol inet, MTU: 1500 Flags: Sendbcast-pkt-to-re Addresses, Flags: Is-Preferred Is-Primary Destination: 198.51.100/24, Local: 198.51.100.1
From operational mode, enter the show interfaces lsq-2/0/0 statistics command.
user@R1> show interfaces lsq-2/0/0 statistics Physical interface: lsq-2/0/0, Enabled, Physical link is Up Interface index: 262, SNMP ifIndex: 44421 Link-level type: LinkService, MTU: 1504 Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000 Last flapped : Never Statistics last cleared: Never Input rate : 0 bps (0 pps) Output rate : 0 bps (0 pps) Logical interface lsq-2/0/0.0 (Index 354) (SNMP ifIndex 44422) Flags: Up Point-To-Point SNMP-Traps 0x4000 Encapsulation: Multilink-PPP Last flapped: 2014-04-24 04:50:19 PDT (00:04:33 ago) Bandwidth: 3072kbps Bundle links information: Active bundle links 2 Removed bundle links 0 Disabled bundle links 0 Statistics Frames fps Bytes bps Bundle: Multilink: Input : 0 0 0 0 Output: 0 0 0 0 Network: Input : 0 0 0 0 Output: 0 0 0 0 IPV6 Transit Statistics Packets Bytes Network: Input : 0 0 Output: 0 0 Link: t1-2/0/0:1.0 Up time: 00:04:33 Input : 0 0 0 0 Output: 0 0 0 0 t1-2/0/0:2.0 Up time: 00:04:30 Input : 0 0 0 0 Output: 0 0 0 0 NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configured Protocol inet, MTU: 1500 Flags: Sendbcast-pkt-to-re Addresses, Flags: Is-Preferred Is-Primary Destination: 192.0.2/24, Local: 192.0.2.2 Logical interface lsq-2/0/0.1 (Index 355) (SNMP ifIndex 44423) Flags: Up Point-To-Point SNMP-Traps 0x4000 Encapsulation: Multilink-FR Last flapped: 2014-04-24 04:50:19 PDT (00:04:33 ago) Bandwidth: 3072kbps Bundle links information: Active bundle links 2 Removed bundle links 0 Disabled bundle links 0 Statistics Frames fps Bytes bps Bundle: Multilink: Input : 0 0 0 0 Output: 0 0 0 0 Network: Input : 0 0 0 0 Output: 0 0 0 0 Link: t1-2/0/0:3.0 Up time: 00:04:33 Input : 0 0 0 0 Output: 0 0 0 0 t1-2/0/0:4.0 Up time: 00:04:33 Input : 0 0 0 0 Output: 0 0 0 0 Protocol inet, MTU: 1500 Flags: Sendbcast-pkt-to-re Addresses, Flags: Is-Preferred Is-Primary Destination: 198.51.100/24, Local: 198.51.100.2