Ethernet interface commands

ETH receive packet statistics

Statistics about the Ethernet packets received by the Ethernet module:

·     Totalnum—Total number of received packets.

·     ETHIINum—Number of packets encapsulated by using Ethernet II.

·     SNAPNum—Number of packets encapsulated by using SNAP.

·     RAWNum—Number of packets encapsulated by using RAW.

·     ISISNum—Number of packets encapsulated by using ISIS. This field is not supported in the current software version.

·     LLCNum—Number of packets encapsulated by using LLC.

·     UnknownNum—Number of packets encapsulated by using unknown methods.

·     ForwardNum—Number of packets forwarded at Layer 2 or sent to the CPU.

·     ARP—Number of ARP packets. ‌

·     MPLS—Number of MPLS packets. This field is not supported in the current software version.

·     ISIS—Number of IS-IS packets.‌ This field is not supported in the current software version.

·     ISIS2—Number of large 802.3/802.2 frames encapsulated by using IS-IS. This field is not supported in the current software version.‌

·     IP—Number of IP packets.

·     IPv6—Number of IPv6 packets.

ETH receive error statistics

Statistics about the error Ethernet packets in the inbound direction on the Ethernet module. Errors might be included in packets or occur during the receiving process. The items include:

·     NullPoint—Number of packets that include null pointers.

·     ErrIfindex—Number of packets that include incorrect interface indexes.

·     ErrIfcb—Number of packets that include incorrect interface control blocks.

·     IfShut—Number of packets that are being received when the interface is shut down.

·     ErrAnalyse—Number of packets that include packet parsing errors.

·     ErrSrcMAC—Number of packets that include incorrect source MAC addresses.

·     ErrHdrLen—Number of packets that include header length errors.

ETH send packet statistics

Statistics about the Ethernet packets sent by the Ethernet module:

·     L3OutNum—Number of packets sent out of Layer 3 Ethernet interfaces.

·     VLANOutNum—Number of packets sent out of VLAN interfaces. 

·     FastOutNum—Number of packets fast forwarded.

·     L2OutNum—Number of packets sent out of Layer 2 Ethernet interfaces. 

ETH send error statistics

Statistics about the error Ethernet packets in the outbound direction on the Ethernet module:

·     MbufRelayNum—Number of packets transparently sent.

·     NullMbuf—Number of packets with null pointers.

·     ErrAdjFwd—Number of packets with adjacency table errors.

·     ErrPrepend—Number of packets with extension errors.

·     ErrHdrLen—Number of packets with header length errors.

·     ErrPad—Number of packets with padding errors.

·     ErrQoSTrs—Number of packets that failed to be sent by QoS.

·     ErrVLANTrs—Number of packets that failed to be sent in VLANs.

·     ErrEncap—Number of packets that failed to be sent due to link header encapsulation failures.

·     ErrTagVLAN—Number of packets that failed to be sent due to VLAN tag encapsulation failures.

·     IfShut—Number of packets that are being sent when the interface is shut down.

·     IfErr—Number of packets with incorrect outgoing interfaces.

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.

·     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:

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

Bandwidth

Expected bandwidth 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 Network Connectivity Configuration Guide.

·     BOOTP-allocated—BOOTP allocated IP address. For more information, see BOOTP client configuration in Network Connectivity 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 set external

An external 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.

100Mbps-speed mode

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

1000Mbps-speed mode

The interface is operating at 1000 Mbps. This field depends on your configuration and the link parameter negotiation result.

10Gbps-speed mode

The interface is operating at 10 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.

half-duplex mode

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

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.

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.

PVID

Port VLAN ID (PVID) of the interface.

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 hardware down reason

Last hardware down reason of the interface:

·     PHY line side is down.

·     PHY system side is down.

·     No optical signal has been received at the optical port.

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:

·     1518 bytes (without VLAN tags).

·     1522 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 1518 bytes (without VLAN tags) or 1522 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.

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 of interfaces in bridge mode:

Brief information about Layer 2 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.

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.

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.

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

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

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