Common interface commands

Interface

Abbreviated interface name.

Total (pkts)

Total number of packets received or sent through the interface.

Broadcast (pkts)

Total number of broadcast packets received or sent through the interface.

Multicast (pkts)

Total number of multicast packets received or sent through the interface.

Err (pkts)

Total number of error packets received or sent through the interface.

Overflow: More than 14 digits (7 digits for column "Err")

The command displays Overflow when any of the following conditions exist:

·     The data length of an Err field value is greater than 7 decimal digits.

·     The data length of a non-Err field value is greater than 14 decimal digits.

--: Not supported

The statistical item is not supported.

Interface

Abbreviated interface name.

Usage (%)

Bandwidth usage (in percentage) of the interface for the last statistics polling interval.

Total (pkts/sec)

Average receiving or sending rate (in pps) for unicast packets for the last statistics polling interval.

Broadcast (pkts/sec)

Average receiving or sending rate (in pps) for broadcast packets for the last statistics polling interval.

Multicast (pkts/sec)

Average receiving or sending rate (in pps) for multicast packets for the last statistics polling interval.

Overflow: more than 14 decimal digits

The command displays Overflow if the data length of a statistical item is greater than 14 decimal digits.

--: not supported

The statistical item is not supported.

Link: ADM - administratively down; Stby - standby

Physical link state of the interface:

·     ADM—The interface has been shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command.

·     Stby—The interface is a backup interface in standby state. To see the primary interface, use the display interface-backup state command.

Protocol: (s) – spoofing

The data link layer protocol of the interface is up, but the link is an on-demand link or does not exist. The (s) attribute represents the spoofing flag. This value is typical of null interfaces, loopback interfaces, and InLoopback interfaces.

Interface

Abbreviated interface name.

Link

Physical link state of the interface:

·     UP—The interface is physically up.

·     DOWN—The interface is physically down.

·     ADM—The interface has been shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command.

·     Stby—The interface is a backup interface in standby state.

Protocol

Data link layer protocol state of the interface:

·     UP—The data link layer protocol of the interface is up.

·     DOWN—The data link layer protocol of the interface is down.

·     UP(s)—The data link layer protocol of the interface is up, but the link is an on-demand link or does not exist. The (s) attribute represents the spoofing flag. This value is typical of null interfaces, loopback interfaces, and InLoopback interfaces.

InUsage

Inbound bandwidth usage within the most recent statistics polling interval. It is calculated by this formula: Average inbound speed of the interface within the most recent statistics polling interval/interface bandwidth. To set the statistics polling interval, use the flow-interval command.

OutUsage

Outbound bandwidth usage within the most recent statistics polling interval. It is calculated by this formula: Average outbound speed of the interface within the most recent statistics polling interval/interface bandwidth. To set the statistics polling interval, use the flow-interval command.

InErrs

Number of error packets received.

OutErrs

Number of error packets sent.

Overflow: More than 7 digits.

The data length of a statistical item value is greater than 7 decimal digits.

--: Not supported.

A hyphen (-) indicates that the corresponding statistical item is not supported.

Current state

Physical link state of the interface:

·     Administratively DOWN—The interface has been shut down by using the shutdown command.

·     DOWN—The interface is administratively up, but its physical state is down (possibly because no physical link exists or the link has failed).

·     DOWN ( Link-Aggregation interface down )—The aggregate interface to which the interface belongs has been shut down by using the shutdown command.

·     DOWN (Monitor-Link uplink down )—The interface has been shut down by Monitor Link.

·     Link-Flap DOWN—The interface has been shut down by the link flapping protection feature.

·     mac-address moving down—The interface has been shut down by the MAC address move suppression feature.

·     Storm-Constrain—The interface has been shut down because the storm control feature detected that unknown unicast traffic, multicast traffic, or broadcast traffic exceeded the upper threshold.

·     STP DOWN—The interface has been shut down by the BPDU guard feature.

·     UP—The interface is both administratively and physically up.

Line protocol state

Data link layer state of the interface. The state is determined through automatic parameter negotiation at the data link layer.

·     UP—The data link layer protocol is up.

·     UP (spoofing)—The data link layer protocol is up, but the link is an on-demand link or does not exist. This attribute is typical of null interfaces and loopback interfaces.

·     DOWN—The data link layer protocol is down.

·     DOWN (protocols)—The data link layer has been shut down by protocols included in the parentheses. Available protocols include:

¡     DLDP—Shuts down the data link layer when it detects that the link is unidirectional.

¡     LAGG—Shuts down the data link layer when it detects that the aggregate interface does not have Selected ports.

¡     BFD—Shuts down the data link layer when it detects a link failure.

Bandwidth

Expected bandwidth of the interface.

Maximum transmission unit

MTU of the interface.

Internet protocol processing

IP packet processing capability of the interface when the interface is not assigned an IP address:

·     Disabled—The interface cannot process IP packets.

·     Enabled—The interface can process IP packets.

Internet address: ip-address/mask-length (Type)

IP address of the interface and type of the address in parentheses.

Possible IP address types include:

·     Primary—Manually configured primary IP address.

·     Sub—Manually configured secondary IP address. If the interface has both primary and secondary IP addresses, the primary IP address is displayed. If the interface has only secondary IP addresses, the lowest secondary IP address is displayed.

·     DHCP-allocated—DHCP allocated IP address. For more information, see DHCP client configuration in Layer 3—IP Services Configuration Guide.

·     BOOTP-allocated—BOOTP allocated IP address. For more information, see BOOTP client configuration in Layer 3—IP Services Configuration Guide.

·     Unnumbered—IP address borrowed from another interface.

IP packet frame type

IPv4 packet framing format.

hardware address

MAC address of the interface.

IPv6 packet frame type

IPv6 packet framing format.

Port priority

Port priority of the interface.

Loopback is set internal

An internal loopback test is running on the interface. This field depends on your configuration.

Loopback is not set

No loopback test is running on the interface. This field depends on your configuration.

10Gbps-speed mode

The interface is operating at 10 Gbps. This field depends on your configuration and the link parameter negotiation result.

40Gbps-speed mode

The interface is operating at 40 Gbps. This field depends on your configuration and the link parameter negotiation result.

100Gbps-speed mode

The interface is operating at 100 Gbps. This field depends on your configuration and the link parameter negotiation result.

400Gbps-speed mode

The interface is operating at 400 Gbps. This field depends on your configuration and the link parameter negotiation result.

Unknown-speed mode

The speed of the interface is unknown because the speed negotiation fails or the interface is physically disconnected.

full-duplex mode

The interface is operating in full duplex mode. This field depends on your configuration and the link parameter negotiation result.

unknown-duplex mode

The duplex mode of the interface is unknown because the duplex mode negotiation fails or the interface is physically disconnected.

Link speed type is autonegotiation

The interface is configured with the speed auto command.

Link speed type is force link

The interface is manually configured with a speed (for example, 1000 Mbps) by using the speed command.

link duplex type is autonegotiation

The interface is configured with the duplex auto command.

link duplex type is force link

The interface is manually configured with a duplex mode (for example, half or full) by using the duplex command.

Flow-control is not enabled

Generic flow control is disabled on the interface. This field depends on your configuration and the link parameter negotiation result.

Maximum frame length

Maximum length of Ethernet frames allowed to pass through the interface.

Allow jumbo frame to pass

The interface allows jumbo frames to pass through.

Broadcast max-

Broadcast storm suppression threshold in ratio, pps, or kbps. The unit of the threshold depends on your configuration.

Multicast max-

Multicast storm suppression threshold in ratio, pps, or kbps. The unit of the threshold depends on your configuration.

Unicast max-

Unknown unicast storm suppression threshold in ratio, pps, or kbps. The unit of the threshold depends on your configuration.

PVID

Port VLAN ID (PVID) of the interface.

MDI type

MDIX mode of the interface:

·     automdix.

·     mdi.

·     mdix.

Port link-type

Link type of the interface:

·     access.

·     trunk.

·     hybrid.

Tagged VLANs

VLANs for which the interface sends packets without removing VLAN tags.

Untagged VLANs

VLANs for which the interface sends packets after removing VLAN tags.

VLAN Passing

VLANs whose packets can be forwarded by the port. The VLANs must have been created.

VLAN permitted

VLANs whose packets are permitted by the port.

Trunk port encapsulation

Encapsulation protocol type for the trunk port.

Last link flapping

The amount of time that has elapsed since the most recent physical state change of the interface. This field displays Never if the interface has been physically down since device startup.

Last clearing of counters

Time when the reset counters interface command was last used to clear the interface statistics. This field displays Never if the reset counters interface command has never been used on the interface since device startup.

Current system time

Current system date and time, which is displayed in the YYYY/MM/DD hh:mm:ss format by default.

If the time zone is configured, this field is in the YYYY/MM/DD hh:mm:ss zone-name±hh:mm:ss format, where the zone-name argument is the local time zone name.

Last time when physical state changed to up

Last date and time when the physical state of the interface changed to up, which is displayed in the YYYY/MM/DD hh:mm:ss format by default.

If the time zone is configured, this field is in the YYYY/MM/DD hh:mm:ss zone-name±hh:mm:ss format, where the zone-name argument is the local time zone name.

If the physical state of the interface has never changed to up, this field displays a hyphen (-).

Last time when physical state changed to down

Last date and time when the physical state of the interface changed to down, which is displayed in the YYYY/MM/DD hh:mm:ss format by default.

If the time zone is configured, this field is in the YYYY/MM/DD hh:mm:ss zone-name±hh:mm:ss format, where the zone-name argument is the local time zone name.

If the physical state of the interface has never changed to down, this field displays a hyphen (-).

Last 300 seconds input:  0 packets/sec 0 bytes/sec 0%

Last 300 seconds output:  0 packets/sec 0 bytes/sec 0%

Average inbound or outbound traffic rate (in pps and Bps) in the last 300 seconds, and the ratio of the actual rate to the interface bandwidth.

A hyphen (-) indicates that the statistical item is not supported.

Input(total):  0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

The two fields on the first line represent the inbound traffic statistics (in packets and bytes) for the interface. All inbound normal packets, abnormal packets, and normal pause frames were counted.

The four fields on the second line represent:

·     Number of inbound unicast packets.

·     Number of inbound broadcasts.

·     Number of inbound multicasts.

·     Number of inbound pause frames.

A hyphen (-) indicates that the statistical item is not supported.

Input(normal):  0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

The two fields on the first line represent the inbound normal traffic and pause frame statistics (in packets and bytes) for the interface.

The four fields on the second line represent:

·     Number of inbound normal unicast packets.

·     Number of inbound normal broadcasts.

·     Number of inbound normal multicasts.

·     Number of inbound normal pause frames.

A hyphen (-) indicates that the statistical item is not supported.

input errors

Statistics of incoming error packets.

runts

Number of inbound frames meeting the following conditions:

·     Shorter than 64 bytes.

·     In correct format.

·     Containing valid CRCs.

giants

Number of inbound giants. Giants refer to frames larger than the maximum frame length supported on the interface.

For an Ethernet interface that does not permit jumbo frames, the maximum frame length is as follows:

·     1532 bytes (without VLAN tags).

·     1536 bytes (with VLAN tags).

For an Ethernet interface that permits jumbo frames, the maximum Ethernet frame length is set when you configure jumbo frame support on the interface.

throttles

Number of inbound frames that had a non-integer number of bytes.

CRC

Total number of inbound frames that had a normal length, but contained CRC errors.

frame

Total number of inbound frames that contained CRC errors and a non-integer number of bytes.

overruns

Number of packets dropped because the input rate of the port exceeded the queuing capability.

aborts

Total number of illegal inbound packets:

·     Fragment frames—CRC error frames shorter than 64 bytes. The length (in bytes) can be an integral or non-integral value.

·     Jabber frames—CRC error frames greater than the maximum frame length supported on the Ethernet interface (with an integral or non-integral length).

¡     For an Ethernet interface that does not permit jumbo frames, the maximum frame length is 1532 bytes (without VLAN tags) or 1536 bytes (with VLAN tags).

¡     For an Ethernet interface that permits jumbo frames, the maximum Ethernet frame length is set when you configure jumbo frame support on the interface.

·     Symbol error frames—Frames that contained a minimum of one undefined symbol.

·     Unknown operation code frames—Non-pause MAC control frames.

·     Length error frames—Frames whose 802.3 length fields did not match the actual frame length (46 to 1500 bytes).

ignored

Number of inbound frames dropped because the receiving buffer of the port ran low.

parity errors

Total number of frames with parity errors.

Output(total): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

The two fields on the first line represent the outbound traffic statistics (in packets and bytes) for the interface. All outbound normal packets, abnormal packets, and normal pause frames were counted.

The four fields on the second line represent:

·     Number of outbound unicast packets.

·     Number of outbound broadcasts.

·     Number of outbound multicasts.

·     Number of outbound pause frames.

A hyphen (-) indicates that the statistical item is not supported.

Output(normal): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

The two fields on the first line represent the outbound normal traffic and pause frame statistics (in packets and bytes) for the interface.

The four fields on the second line represent:

·     Number of outbound normal unicast packets.

·     Number of outbound normal broadcasts.

·     Number of outbound normal multicasts.

·     Number of outbound normal pause frames.

A hyphen (-) indicates that the statistical item is not supported.

output errors

Number of outbound packets with errors.

underruns

Number of packets dropped because the output rate of the interface exceeded the output queuing capability. This is a low-probability hardware anomaly.

buffer failures

Number of packets dropped because the transmitting buffer of the interface ran low.

aborts

Number of packets that failed to be transmitted, for example, because of Ethernet collisions.

deferred

Number of frames that the interface deferred to transmit because of detected collisions.

collisions

Number of frames that the interface stopped transmitting because Ethernet collisions were detected during transmission.

late collisions

Number of frames that the interface deferred to transmit after transmitting their first 512 bits because of detected collisions.

lost carrier

Number of carrier losses during transmission. This counter increases by one when a carrier is lost, and applies to serial WAN interfaces.

no carrier

Number of times that the port failed to detect the carrier when attempting to send frames. This counter increases by one when a port failed to detect the carrier, and applies to serial WAN interfaces.

Peak input rate

Peak rate of inbound traffic in Bps, and the time when the peak inbound traffic rate occurred.

Peak output rate

Peak rate of outbound traffic in Bps, and the time when the peak outbound traffic rate occurred.

IPv4 traffic statistics

IPv4 packet statistics.

IPv6 traffic statistics

IPv6 packet statistics.

Last 300 seconds input rate: 0 packets/sec, 0 bytes/sec

Average inbound traffic rate (in pps and Bps) in the last 300 seconds.

A hyphen (-) indicates that the statistical item is not supported.

Last 300 seconds output rate: 0 packets/sec, 0 bytes/sec

Average outbound traffic rate (in pps and Bps) in the last 300 seconds.

A hyphen (-) indicates that the statistical item is not supported.

Input: 0 packets, 0 bytes

Inbound traffic statistics (in packets and bytes) for the interface.

A hyphen (-) indicates that the statistical item is not supported.

Output: 0 packets, 0 bytes

Outbound traffic statistics (in packets and bytes) for the interface.

A hyphen (-) indicates that the statistical item is not supported.

Brief information on interfaces in route mode:

Brief information about Layer 3 interfaces.

Interface

Interface name.

Link

Physical link state of the interface:

·     UP—The interface is physically up.

·     DOWN—The interface is physically down.

·     ADM—The interface has been shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command.

·     Stby—The interface is a backup interface in standby state. To see the primary interface, use the display interface-backup state command.

Protocol

Data link layer protocol state of the interface:

·     UP—The data link layer protocol of the interface is up.

·     DOWN—The data link layer protocol of the interface is down.

·     UP(s)—The data link layer protocol of the interface is up, but the link is an on-demand link or does not exist. The (s) attribute represents the spoofing flag. This value is typical of null interfaces and loopback interfaces.

Primary IP

Primary IP address of the interface. This field displays two hyphens (--) if the interface does not have an IP address.

Description

Description of the interface.

Brief information of interfaces in bridge mode:

Brief information about Layer 2 interfaces.

Type: A - access; T - trunk; H – hybrid

Link type options for interfaces.

Speed

Speed of the interface, in bps.

This field displays the (a) flag next to the speed if the speed is automatically negotiated.

This field displays auto if the interface is configured to autonegotiate its speed but the autonegotiation has not started.

Duplex

Duplex mode of the interface:

·     A—Autonegotiation. The interface is configured to autonegotiate its duplex mode but the autonegotiation has not started.

·     F—Full duplex.

·     F(a)—Autonegotiated full duplex.

·     H—Half duplex.

·     H(a)—Autonegotiated half duplex.

Type

Link type of the interface:

·     A—Access.

·     H—Hybrid.

·     T—Trunk.

PVID

Port VLAN ID.

Cause

Cause for the physical link state of an interface to be DOWN:

·     Administratively—The interface has been manually shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command.

·     DOWN ( Link-Aggregation interface down )—The interface is a member port of an aggregate interface, and the aggregate interface is down.

·     DOWN (Loopback detection down)—The loopback detection module has detected loops.

·     DOWN ( Monitor-Link uplink down )—The monitor link module has detected that the uplink is down.

·     Not connected—No physical connection exists (possibly because the network cable is disconnected or faulty).

·     Storm-Constrain—The storm control feature has detected that unknown unicast traffic or broadcast traffic exceeded the upper threshold.

·     STP DOWN—The interface has been shut down by the BPDU guard feature.

·     Standby—The interface is a backup interface in standby state.