show interfaces (PPPoE)

Physical interface

Name of the physical interface.

Enabled

State of the interface. Possible values are described in the “Enabled Field” section under Common Output Fields Description.

Interface index

Physical interface index number, which reflects its initialization sequence.

SNMP ifIndex

SNMP index number for the physical interface.

Generation

Unique number for use by Juniper Networks technical support only.

Type

Physical interface type (PPPoE).

Link-level type

Encapsulation on the physical interface (PPPoE).

MTU

MTU size on the physical interface.

Clocking

Reference clock source. It can be Internal or External.

Speed

Speed at which the interface is running.

Device flags

Information about the physical device. Possible values are described in the “Device Flags” section under Common Output Fields Description.

Interface flags

Information about the interface. Possible values are described in the “Interface Flags” section under Common Output Fields Description.

Link type

Physical interface link type: full duplex or half duplex.

Link flags

Information about the interface. Possible values are described in the “Link Flags” section under Common Output Fields Description.

Input rate

Input rate in bits per second (bps) and packets per second (pps).

Output rate

Output rate in bps and pps.

Physical Info

Physical interface information.

Hold-times

Current interface hold-time up and hold-time down, in milliseconds.

Current address

Configured MAC address.

Hardware address

MAC address of the hardware.

Alternate link address

Backup address of the link.

Statistics last cleared

Time when the statistics for the interface were last set to zero.

Traffic statistics

Number and rate of bytes and packets received and transmitted on the physical interface.

• Input bytes—Number of bytes received on the interface.

• Output bytes—Number of bytes transmitted on the interface.

• Input packets—Number of packets received on the interface.

• Output packets—Number of packets transmitted on the interface.

IPv6 transit statistics

Number of IPv6 transit bytes and packets received and transmitted on the physical interface if IPv6 statistics tracking is enabled.

• Input bytes—Number of bytes received on the interface.

• Output bytes—Number of bytes transmitted on the interface.

• Input packets—Number of packets received on the interface.

• Output packets—Number of packets transmitted on the interface.

Input errors

Input errors on the interface:

• Errors—Sum of incoming frame terminations and FCS errors.

• Drops—Number of packets dropped by the input queue of the I/O Manager ASIC. If the interface is saturated, this number increments once for every packet that is dropped by the ASIC's RED mechanism.

• Framing errors—Number of packets received with an invalid frame checksum (FCS).

• Runts—Number of frames received that are smaller than the runt threshold.

• Giants—Number of frames received that are larger than the giant threshold.

• Policed discards—Number of frames that the incoming packet match code discarded because they were not recognized or not of interest. Usually, this field reports protocols that the Junos OS does not handle.

• Resource errors—Sum of B chip Tx drops and IXP Tx net transmit drops.

Output errors

Output errors on the interface. The following paragraphs explain the counters whose meaning might not be obvious:

• Carrier transitions —Number of times the interface has gone from down to up. This number does not normally increment quickly, increasing only when the cable is unplugged, the far-end system is powered down and then up, or another problem occurs. If the number of carrier transitions increments quickly (perhaps once every 10 seconds), then the cable, the far-end system, or the PIM is malfunctioning.

• Errors—Sum of the outgoing frame terminations and FCS errors.

• Drops—Number of packets dropped by the output queue of the I/O Manager ASIC. If the interface is saturated, this number increments once for every packet that is dropped by the ASIC's RED mechanism.

• MTU errors—Number of packets whose size exceeded the MTU of the interface.

• Resource errors—Sum of B chip Tx drops and IXP Tx net transmit drops.

Logical interface

Name of the logical interface.

Index

Logical interface index number (which reflects its initialization sequence).

SNMP ifIndex

Logical interface SNMP interface index number.

Generation

Unique number for use by Juniper Networks technical support only.

Flags

Information about the logical interface. Possible values are described in the “Logical Interface Flags” section under Common Output Fields Description.

Encapsulation

Type of encapsulation configured on the logical interface.

PPP parameters

PPP status:

• LCP restart timer—Length of time (in milliseconds) between successive Link Control Protocol (LCP) configuration requests.

• NCP restart timer—Length of time (in milliseconds) between successive Network Control Protocol (NCP) configuration requests.

PPPoE

PPPoE status:

• State—State of the logical interface (up or down).

• Session ID—PPPoE session ID.

• Service name—Type of service required. Can be used to indicate an Internet service provider (ISP) name or a class or quality of service.

• Configured AC name—Configured access concentrator name.

• Auto-reconnect timeout—Time after which to try to reconnect after a PPPoE session is terminated, in seconds.

• Idle Timeout—Length of time (in seconds) that a connection can be idle before disconnecting.

• Underlying interface—Interface on which PPPoE is running.

Link

Name of the physical interfaces for member links in an aggregated Ethernet bundle for a PPPoE over aggregated Ethernet configuration. PPPoE traffic goes out on these interfaces.

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. This counter usually takes less than 1 second to stabilize.

IPv6 transit statistics

Number of IPv6 transit bytes and packets received and transmitted on the logical interface if IPv6 statistics tracking is enabled.

• Input bytes—Number of bytes received on the interface.

• Output bytes—Number of bytes transmitted on the interface.

• Input packets—Number of packets received on the interface.

• Output packets—Number of packets transmitted on the interface.

Local statistics

Statistics for traffic received from and transmitted to the Routing Engine. When a burst of traffic is received, the value in the output packet rate field might briefly exceed the peak cell rate. This counter usually takes less than 1 second to stabilize.

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. This counter usually takes less than 1 second to stabilize.

Keepalive settings

(PPP and HDLC) Configured settings for keepalives.

• interval seconds—The time in seconds between successive keepalive requests. The range is 10 seconds through 32,767 seconds, with a default of 10 seconds.

• down-countnumber—The number of keepalive packets a destination must fail to receive before the network takes a link down. The range is 1 through 255, with a default of 3.

• up-count number—The number of keepalive packets a destination must receive to change a link’s status from down to up. The range is 1 through 255, with a default of 1.

Keepalive statistics

(PPP and HDLC) Information about keepalive packets.

• Input—Number of keepalive packets received by PPP.

  • (last seen 00:00:00 ago)—Time the last keepalive packet was received, in the format hh:mm:ss.

• Output—Number of keepalive packets sent by PPP and how long ago the last keepalive packets were sent and received.

  • (last seen 00:00:00 ago)—Time the last keepalive packet was sent, in the format hh:mm:ss.

(MX Series routers with MPCs/MICs) When an MX Series router with MPCs/MICs is using PPP fast keepalive for a PPP link, the display does not include the number of keepalive packets received or sent, or the amount of time since the router received or sent the last keepalive packet.

Input packets

Number of packets received on the logical interface.

Output packets

Number of packets transmitted on the logical interface.

LCP state

(PPP) Link Control Protocol state.

• Conf-ack-received—Acknowledgement was received.

• Conf-ack-sent—Acknowledgement was sent.

• Conf-req-sent—Request was sent.

• Down—LCP negotiation is incomplete (not yet completed or has failed).

• Not-configured—LCP is not configured on the interface.

• Opened—LCP negotiation is successful.

NCP state

(PPP) Network Control Protocol state.

• Conf-ack-received—Acknowledgement was received.

• Conf-ack-sent—Acknowledgement was sent.

• Conf-req-sent—Request was sent.

• Down—NCP negotiation is incomplete (not yet completed or has failed).

• Not-configured—NCP is not configured on the interface.

• Opened—NCP negotiation is successful.

CHAP state

(PPP) Displays the state of the Challenge Handshake Authentication Protocol (CHAP) during its transaction.

• Chap-Chal-received—Challenge was received but response not yet sent.

• Chap-Chal-sent—Challenge was sent.

• Chap-Resp-received—Response was received for the challenge sent, but CHAP has not yet moved into the Success state. (Most likely with RADIUS authentication.)

• Chap-Resp-sent—Response was sent for the challenge received.

• Closed—CHAP authentication is incomplete.

• Failure—CHAP authentication failed.

• Not-configured—CHAP is not configured on the interface.

• Success—CHAP authentication was successful.

Protocol

Protocol family configured on the logical interface.

protocol-family

Protocol family configured on the logical interface. If the protocol is inet, the IP address of the interface is also displayed.

MTU

MTU size on the logical interface.

Generation

Unique number for use by Juniper Networks technical support only.

Route table

Routing table in which the logical interface address is located. For example, 0 refers to the routing table inet.0.

Flags

Information about the protocol family flags. Possible values are described in the “Family Flags” section under Common Output Fields Description.

Addresses, Flags

Information about the addresses configured for the protocol family. Possible values are described in the “Addresses Flags” section under Common Output Fields Description.

Destination

IP address of the remote side of the connection.

Local

IP address of the logical interface.

Broadcast

Broadcast address.