current state
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Current status of the interface: UP: The interface is physically Up.
DOWN: The interface is physically Down.
Protected port: An interface is added to an interface protection group and set to be a protected interface. To add an interface to an interface protection group and set the interface to be a protected interface, run the port protect-group and protect-group member commands.
Administratively down: The administrator has run the shutdown command on the interface.
- TRIGGER DOWN (BFD): When BFD detects a fault, the physical status of the interface becomes Down according to the OAM association.
- TRIGGER DOWN (3AH): When 3AH detects a fault, the physical status of the interface becomes Down according to the OAM association.
- TRIGGER DOWN (1AG): When 1AG detects a fault, the physical status of the interface becomes Down according to the OAM association.
- ERROR DOWN(auto-defend): When the interface receives packets from an attack source, the physical status of the interface becomes Down.
- ERROR DOWN(efm-threshold-event): When the number of error frames, error codes, or error frame seconds of EFM OAM detected by the interface reaches or exceeds the threshold within a set period, the physical status of the interface becomes Down according to the OAM association.
- ERROR DOWN(efm-remote-failure): When EFM detects a remote failure, the physical status of the interface becomes Down according to the OAM association.
- ERROR DOWN(bpdu-protection): If an edge interface receives RST BPDUs after BPDU protection is enabled, the physical status of the edge interface becomes Down.
- ERROR DOWN(error-statistics): If the system detects that the number of error packets received by the interface exceeds the threshold, the physical status of the interface becomes Down.
- ERROR DOWN(runts-error-statistics): When the number of Runts error packets received by the interface reaches the alarm threshold, the physical status of the interface becomes Down.
- ERROR DOWN(transceiver-power-low): If the system detects that the optical power of the interface falls below the configured lower alarm threshold, the physical status of the interface becomes Down.
- ERROR DOWN(port-security): When the number of learned MAC address entries reaches the threshold, the interface goes Down.
- ERROR DOWN(mac-address-flapping): When the learned MAC address flaps, the interface goes Down.
- ERROR DOWN(dhcp-packet-overspeed): When the DHCP packet rate of the interface exceeds the threshold, the physical status of the associated interface becomes Down.
- ERROR DOWN(link-flap): When the link flaps, the physical status of the associated interface becomes Down.
- ERROR DOWN(data-integrity-error): The chip memory identifier has a data integrity error and the physical status of the interface becomes Down.
- UP(E-TRUNK-DOWN): The Eth-Trunk interface goes Down because of E-Trunk negotiation.
NOTE: There is a delay before the interface state is reported, so an interface undergoes a short-time intermediate state before it transitions to the ERROR DOWN state. The intermediate state is ERROR DOWN (ERROR DOWN reason), up. This state does not affect functioning of the interface.
When the physical status of the interface is ERROR DOWN(data-integrity-error), perform the following operations:
- Check whether the error-down auto-recovery cause data-integrity-error interval interval-value command has been configured on the switch. If the command has been configured, go to step 2. Otherwise, go to step 3.
- Check whether the interface restores to Up state after the time specified by interval-value expires. If the interface does not restore to Up state, go to step 3.
- Run the undo shutdown command in the interface view to enable the interface and check whether the interface restores to Up state. If the interface does not restore to Up state, go to step 4.
- Run the reset slot command to restart the switch. After the switch restarts, check whether the interface restores to Up state. If the interface does not restore to Up state, go to step 5.
- Replace the switch.
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Line protocol current state
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Link layer protocol status of the interface: UP: The link layer protocol of the interface is working properly.
UP (BFD status down): BFD associated with the interface is Down.
UP (Main BFD status down): The BFD session associated with the main interface becomes Down and is associated with the sub-interface status. This state is displayed only for sub-interfaces.
UP (spoofing): The link layer protocol of the interface is always Up with the spoofing feature enabled.
DOWN: The link-layer protocol status of the interface is Down or no IP address is assigned to the interface.
For example, if no IP address is assigned to an IP service-capable interface, its protocol status is Down.
- DOWN (CFM down): CFM detects a fault or receives a fault notification message from its associated module. In this case, the link layer protocol of the interface becomes CFM Down.
- DOWN (EFM down): EFM detects a fault or receives a fault notification message from its associated module. In this case, the link layer protocol of the interface becomes EFM Down.
- DOWN (DLDP down): DLDP detects a fault or receives a fault notification message from its associated module. In this case, the link layer protocol of the interface becomes DLDP Down.
- DOWN (MACsec down): MACsec is not enabled on the peer interface. In this case, the link layer protocol of the interface becomes MACsec Down.
NOTE: DOWN (MACsec down) is displayed only after the MACsec plug-in is installed.
Only the S5720-SI, S5720S-SI, S5720-HI, S5720-EI, S5730-HI, S6720-SI, and S6720-EI support MACsec.
- DOWN (Observe-port forwarding down): The interface status becomes Down because the packet forwarding function is disabled on the observing port or in the observing port group where the port resides.
- DOWN(BFD status down): indicates that BFD detects a fault and changes the link status of the interface to BFD DOWN. In this state, the interface discards Layer 2 and Layer 3 packets but permits BFD packets.
- DOWN(Main BFD status down): indicates that BFD detects a fault and changes the link status of the main interface and its sub-interfaces to BFD DOWN. This state is applicable only to sub-interfaces. In this state, Layer 2 and Layer 3 packets are discarded, but BFD packets are permitted.
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Description
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Interface description.
To configure the description for an interface, run the description command.
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Switch Port
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A Layer 2 interface.
To switch an interface to the Layer 3 mode, run the undo portswitch command.
If the interface is a Layer 3 interface, Route Port is displayed here.
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PVID
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Default VLAN ID of the interface.
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Link-type
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Link type of an interface , which is displayed only when the interface works in Layer 2 mode: - access(configured): The interface is manually configured as the access type.
- hybrid: The interface is manually configured as the hybrid type.
- trunk(configured): The interface is manually configured as the trunk type.
- dot1q-tunnel: The interface is manually configured as the dot1q-tunnel type.
- access(negotiated): The interface is automatically negotiated as the access type.
- trunk(negotiated): The interface is automatically negotiated as the trunk type.
To set the link type for an interface, run the port link-type command. |
The Maximum Frame Length
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Maximum frame length allowed by the interface.
To set the maximum frame length, run the jumboframe enable command.
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TPID
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Type of frames that are supported on the interface.
By default, this field displays 0x8100, indicating an 802.1Q frame.
This field is displayed only for a Layer 2 interface.
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IP Sending Frames' Format
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Format of frames sent by the IP protocol, including PKTFMT_ETHNT_2, Ethernet_802.3, and Ethernet_SNAP.
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Hardware address
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MAC address of the interface.
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Port Mode
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Working mode of the interface:
- COMMON COPPER: The interface works as an electrical interface.
- COMMON FIBER: The interface works as an optical interface.
If the interface is a combo interface:
- COMBO AUTO: The combo interface automatically selects the working mode.
- FORCE FIBER: The combo interface is configured as an optical interface.
- FORCE COPPER: The combo interface is configured as an electrical interface.
To configure the working mode for an interface, run the combo-port command.
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Supported rates
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Rate supported by the interface.
NOTE: Only the MultiGE electrical interface, XG electrical interface on the S5720-EI, and XG electrical interface on the ES5D21X08T00 subcard are supported.
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Transceiver
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Type of the optical module.
- This field is not displayed for electrical interfaces.
- If an optical or copper module is inserted into the optical interface, the field indicates the model of the optical or copper module.
- If an optical or copper module is not inserted into the optical interface, the field is not displayed.
- If the optical interface is connected to the high-speed cable, the field indicates the type of the cable.
- For the S5720-SI, S5720I-SI, S5735-S, S5735S-S, S5720-LI, S5735-L, S5735S-L, and S5735S-L-M, If GPON optical module or a faulty optical module is installed on an optical interface, the field is displayed as ONLINE within 1 minute; the detailed type of the GPON optical module is displayed after 1 minute, and no information about other faulty optical modules is displayed.
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Last physical up time
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Last time the interface went Up physically. If this field displays "-", the physical status of the interface does not change.
If the system is configured with a time zone and is in the daylight saving time, the time is displayed in the format of YYYY-MM-DD HH:MM:SS UTC±HH:MM DST.
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Last physical down time
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Last time the interface went Down physically. If this field displays "-", the physical status of the interface does not change.
If the system is configured with a time zone and is in the summer daylight saving time, the time is displayed in the format of YYYY-MM-DD HH:MM:SS UTC±HH:MM DST.
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Current system time
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Current system time.
If the time zone is configured and the daylight saving time is used, the time is in YYYY-MM-DD HH:MM:SS±HH:MM format.
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Speed
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Current rate of the interface.
- In auto-negotiation mode, the auto speed command configures the rate of an interface.
- In non-auto-negotiation mode, the speed command configures the rate of an interface.
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Loopback
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Loopback configuration of the interface.
To configure loopback on an interface, run the loopback command.
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Duplex
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Duplex mode of the interface:
- FULL: The interface works in full-duplex mode.
- HALF: The interface works in half-duplex mode.
- In auto-negotiation mode, the auto duplex command configures the duplex mode of an interface.
- In non-auto-negotiation mode, the duplex command configures the duplex mode of an interface.
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Negotiation
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Auto-negotiation mode of the interface:
- ENABLE: The interface works in auto-negotiation mode.
- DISABLE: The interface works in non-auto-negotiation mode.
To configure the auto-negotiation mode for an interface, run the negotiation auto command.
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Mdi
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Network cable type of the interface.
To configure the network cable type of an interface, run the mdi command.
The Mdi field displays - for an optical interface.
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Flow-control
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Whether flow control is enabled:
- ENABLE: Flow control is enabled on the interface.
- DISABLE: Flow control and received flow control is disabled on the interface.
- RECEIVE ENABLE: Receive flow control is enabled on the interface.
NOTE: If the flow-control command has been executed to enable flow control on an Ethernet interface, or the flow-control receive command has been executed to enable received flow control on an Ethernet interface, this field displays DISABLE in the following situations:
- The interface is in Down state.
- The interface works in half-duplex mode.
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FEC
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Whether FEC is enabled on an interface: - RS-FEC: RS-FEC is enabled on the interface.
- BASE-FEC: BASE-R FEC is enabled on the interface.
- NONE: The optical module is not properly installed and FEC is not configured; FEC is disabled; or FEC is not supported because a 40G optical module (except CFP 40GE optical module) is installed on a 100GE interface.
When FEC is not configured, whether FEC is enabled on the interface depends on the medium. When a CFP 40GE/100GE optical module is installed on the interface, FEC cannot be configured on the interface and this field displays -.
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Last 300 seconds input rate
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Incoming packet rate (bits per second and packets per second) within the last 300 seconds.
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Last 300 seconds output rate
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Outgoing packet rate (bits per second and packets per second) within the last 300 seconds.
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Input peak rate 0 bits/sec,Record time
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Maximum rate of incoming packets and time when the maximum rate is reached.
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Output peak rate 0 bits/sec,Record time
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Maximum rate of outgoing packets and time when the maximum rate is reached.
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Input
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Total number of received packets.
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Output
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Total number of sent packets.
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Unicast
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Number of unicast packets that are received or sent by the interface.
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Multicast
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Number of multicast packets that are received or sent by the interface.
For the S5720-HI, S5730-HI, S6720-HI, S5732-H, S6730-H, S6730S-H, S6730-S, and S6730S-S the value of this field contains the number of pause frames.
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Broadcast
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Number of broadcast packets that are received or sent by the interface.
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Jumbo
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Number of received packets with length ranging from 1518 bytes to the maximum jumbo frame length and correct FCS values.
Number of sent packets with lengths of over 1518 bytes and correct FCS.
For the S5720-HI, S5730-HI, and S6720-HI, the value of this field contains the number of received packets with length ranging from 1518 bytes to the jumbo frame length configured on the interface and correct CRC values.
To set the maximum jumbo frame length, run the jumboframe enable command.
NOTE: Only S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735S-S, S5735-S-I, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support statistics on Jumbo frames.
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Discard
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Number of packets discarded by the interface during physical layer detection.
On the S2720-EI, S5720-LI, S5735-L, S5735S-L, S5735S-L-M, S5720S-LI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5720I-SI, S5720S-SI, S5730-SI, S5730S-EI, S6720-SI, S6720S-SI, S6720-LI, and S6720S-LI, after you run the reset qos queue statistics command, the number of packets discarded by the interface is cleared.
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Total Error
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Number of error packets found during physical layer detection.
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CRC
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Number of packets with length ranging from 64 bytes to 1518 bytes and incorrect FCS values.
For the S5720-HI, S5730-HI, S5731-H, S5731S-H, S5731S-S, S5732-H, S6720-HI, S6730-H, S6730S-H, S6730-S, and S6730S-S, the value of this field includes the number of received packets longer than the maximum jumbo frame length and with incorrect FCS values.
For the S5720-EI whose interfaces are in half duplex mode, the value of this field includes the number of received packets longer than 1518 bytes.
For the S2720-EI, S5720-LI, S5720S-LI, S5720-SI, S5720S-SI, S5720I-SI, S5730-SI, S5730S-EI, S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735S-S, S5735-S-I, S6720-LI, S6720S-LI, S6720-SI, and S6720S-SI, the value of this field contains the number of received packets with length ranging from 1518 bytes to the jumbo frame size configured on the interface and incorrect FCS values.
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Giants
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Number of received frames with length exceeding the maximum jumbo frame length.
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Jabbers
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Number of received packets with length ranging from 1518 bytes to the maximum jumbo frame length and incorrect FCS values on the S5720-EI. The S5720I-SI, S5720S-SI, S5720-SI, S5731-S, S5731S-S, S5731-H, S5731S-H, S5732-H, S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735S-S, S5735-S-I, S5730S-EI, S5730-SI, S6720-EI, S6720S-EI, S6720-SI, S6720S-SI, do not have the Jabbers field. On the other product models, this field indicates the number of received packets with length exceeding the maximum jumbo frame length and incorrect FCS values.
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Fragments
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Number of received fragmented packets. A fragmented packet is a packet shorter than 64 bytes and with incorrect CRC values.
For the S5720-HI and S6720-HI, the value of this field contains the number of undersized frames with the correct CRC values received is displayed.
On the S2720-EI, S5720-SI, S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735S-S, S5735-S-I, S5720I-SI, S5720S-SI, S5730-SI, S5730S-EI, S6720-SI, S6720S-SI, S6720S-EI, and S6720-EI, the command output does not contain the Fragments field to display statistics about received fragmented packets.
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Runts
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Number of received undersized frames with correct CRC values.
For the S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5720I-SI, S5720S-SI, S5730-SI, S5730S-EI, S6720-SI, S6720S-SI, S6720S-EI, and S6720-EI, the value of this field includes the number of received fragmented packets shorter than 64 bytes and with incorrect CRC values.
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DropEvents
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Number of received packets that are discarded due to GBP full or back pressure.
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Alignments
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Number of received frames with alignment errors.
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Symbols
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Number of received frames with coding errors.
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Ignoreds
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Number of received MAC control frames whose OpCode is not PAUSE.
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Frames
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Number of packets with incorrect 802.3 length.
NOTE: Only the S5720-EI, S5735-L, S5735-S, S5735-S-I, and S6720-EI support frame statistics collection.
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Pause
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Number of pause frames.
NOTE: The following interfaces do not support the function of collecting Pause frame statistics when flow control is not enabled:
- Four XGE optical interfaces and last eight GE electrical interfaces on the S5720-56C-HI
- Four XGE optical interfaces on the S5720-32C-HI-24S
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Collisions
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Number of packets with 1 to 15 collisions during packet forwarding. NOTE: If the command output contains only this field and the ExcessiveCollisions field is not displayed, the field also includes the number of frames that are canceled due to consecutive 16 collisions.
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ExcessiveCollisions
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Number of packets with 16 collisions and fail to be sent.
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Late Collisions
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Number of packets with conflict and delayed.
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Deferreds
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Number of delayed packets without conflict.
The S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5720S-SI, S6720S-EI, and S6720-EI do not have the Buffers Purged field. On other models, the value of this field is always 0.
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Buffers Purged
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Number of packets aged in the cache.
The value of this field is always 0.
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Input bandwidth utilization threshold
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Threshold for inbound bandwidth usage.
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Output bandwidth utilization threshold
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Threshold for outbound bandwidth usage.
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Input bandwidth utilization
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Inbound bandwidth usage.
For the S2720-EI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5720I-SI, S5720S-SI, S5720-LI, S5735-L, S5735S-L, S5735S-L-M, S5720S-LI, S5730-SI, S5730S-EI, S6720-SI, S6720S-SI, S6720-LI, and S6720S-LI, the bandwidth usage of Giants packets is calculated based on the configured jumbo frame length.
To set the maximum jumbo frame length, run the jumboframe enable command.
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Output bandwidth utilization
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Outbound bandwidth usage.
For the S2720-EI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5720I-SI, S5720S-SI, S5720-LI, S5735-L, S5735S-L, S5735S-L-M, S5720S-LI, S5730-SI, S5730S-EI, S6720-SI, S6720S-SI, S6720-LI, and S6720S-LI, the bandwidth usage of Giants packets is calculated based on the configured jumbo frame length.
To set the maximum jumbo frame length, run the jumboframe enable command.
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