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| Title | Size | Download |
|---|---|---|
| 02-Ethernet interface commands | 145.40 KB |
Ethernet interface commands
Common Ethernet interface commands
bandwidth
Use bandwidth to set the expected bandwidth of an interface.
Use undo bandwidth to restore the default.
Syntax
bandwidth bandwidth-value
undo bandwidth
Default
The expected bandwidth (in kbps) is the interface baud rate divided by 1000.
Views
Ethernet interface view
Ethernet subinterface view
Predefined user roles
network-admin
mdc-admin
Parameters
bandwidth-value: Specifies the expected bandwidth in the range of 1 to 400000000 kbps.
Usage guidelines
The expected bandwidth is an informational parameter used only by higher-layer protocols for calculation. You cannot adjust the actual bandwidth of an interface by using this command.
Examples
# Set the expected bandwidth of the interface GigabitEthernet 2/1/1 to 1000 kbps.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] bandwidth 1000
# Set the expected bandwidth of the subinterface GigabitEthernet 2/1/1.1 to 1000 kbps.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1.1
[Sysname-GigabitEthernet2/1/1.1] bandwidth 1000
Related commands
speed
combo enable
Use combo enable to activate the copper or fiber combo port of a combo interface.
Syntax
combo enable { copper | fiber }
Default
The copper combo port of a combo interface is activated.
Views
Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
copper: Activates the copper combo port. In this case, use twisted pairs to connect the port.
fiber: Activates the fiber combo port. In this case, use optical fibers to connect the port.
Usage guidelines
A combo interface is a logical interface that physically contains one fiber combo port and one copper combo port on the device panel. The two ports share one forwarding interface. As a result, they cannot work simultaneously. When you activate either port, the other port is automatically disabled. You can select to activate the copper combo port or fiber combo port.
Before using this command, perform the following tasks according to the marks on the device panel:
· Determine the combo interfaces on your device.
· Identify the two physical interfaces that belong to each combo interface.
Examples
# Activate the copper combo port of the combo interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] combo enable copper
# Activate the fiber combo port of the combo interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] combo enable fiber
dampening
Use dampening to enable the device to dampen an interface when the interface is flapping.
Use undo dampening to restore the default.
Syntax
dampening [ half-life reuse suppress max-suppress-time ]
undo dampening
Default
Interface dampening is disabled on Ethernet interfaces.
Views
Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
half-life: Specifies the amount of time (in seconds) after which a penalty is decreased. The interface has an initial penalty of 0. When the interface flaps, the penalty increases by 1000 for each down event until the maximum penalty is reached. When the interface stops flapping, the penalty decreases by half each time the half-life timer expires until the penalty drops to the reuse threshold. The value range for the half-life timer is 1 to 120 seconds, and the default is 54 seconds.
reuse: Specifies the reuse threshold. When the accumulated penalty decreases to this threshold, the interface is not dampened. Interface state changes are reported to the higher layers. The value range for the reuse threshold is 200 to 20000, and the default is 750. The reuse threshold must be less than the suppression threshold.
suppress: Specifies the suppression threshold. This threshold is the accumulated penalty that triggers the device to dampen the interface. In dampened state, the interface does not report its state changes to the higher layers. The value range for the suppression threshold is 200 to 20000, and the default is 2000.
max-suppress-time: Specifies the maximum amount of time the interface can be dampened. If the penalty is still higher than the reuse threshold when this timer expires, the penalty stops increasing for down events. The penalty starts to decrease until it drops below the reuse threshold. The value range for the maximum suppression interval is 1 to 255 seconds, and the default is 162 seconds (three times the half-life timer).
|
|
NOTE: The penalty does not increase for up events. |
Usage guidelines
The interface dampening feature uses an exponential decay mechanism to prevent excessive interface flapping events from adversely affecting routing protocols and routing tables in the network.
If an interface is not dampened, its state changes are reported. For each state change, the system also generates an SNMP notification and log message.
After a flapping interface is dampened, it does not report its state changes to the CPU. For state change events, the interface only generates SNMP notifications and log messages. Suppression of interface state change events protects the system processing resources.
This command and the link-delay command cannot be both configured on an interface.
This command does not take effect on the administratively down events. When you execute the shutdown command, the penalty restores to 0, and the interface reports the down event to the higher layer protocols.
Do not enable the dampening function on an interface with MSTP enabled.
Examples
# Enable interface dampening on the interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] dampening
# Enable interface dampening on the interface GigabitEthernet 2/1/1, and set the following parameters:
· Half life time to 2 seconds.
· Reuse value to 800.
· Suppression threshold to 3000.
· Maximum suppression interval to 5 seconds.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] dampening 2 800 3000 5
Related commands
display interface
link-delay
default
Use default to restore the default settings for an interface.
Syntax
default
Views
Ethernet interface view
Ethernet subinterface view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
|
|
CAUTION: The default command might interrupt ongoing network services. Make sure you are fully aware of the impacts of this command when you use it in a live network. |
This command might fail to restore the default settings for some commands because of command dependencies or system restrictions. You can use the display this command in interface view to identify these commands, and use their undo forms or follow the command reference to restore their default settings. If your restoration attempt still fails, follow the error message instructions to solve the problem.
Examples
# Restore the default settings for the interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] default
# Restore the default settings for the subinterface GigabitEthernet 2/1/1.1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1.1
[Sysname-GigabitEthernet2/1/1.1] default
description
Use description to set the description of an interface.
Use undo description to restore the default.
Syntax
description text
undo description
Default
The description of an interface is the interface name plus Interface (for example, GigabitEthernet2/1/1 Interface).
Views
Ethernet interface view
Ethernet subinterface view
Predefined user roles
network-admin
mdc-admin
Parameters
text: Specifies the interface description, a case-sensitive string of 1 to 255 characters.
Examples
# Set the description of the interface GigabitEthernet 2/1/1 to lan-interface.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] description lan-interface
# Set the description of the Ethernet subinterface GigabitEthernet 2/1/1.1 to subinterface2/1/1.1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1.1
[Sysname-GigabitEthernet2/1/1.1] description subinterface2/1/1.1
display counters
Use display counters to display interface traffic statistics.
Syntax
display counters { inbound | outbound } interface [ interface-type [ interface-number | interface-number.subnumber ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
inbound: Displays inbound traffic statistics.
outbound: Displays outbound traffic statistics.
interface-type: Specifies an interface type.
interface-number: Specifies an interface number.
interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.
Usage guidelines
This command displays traffic statistics within a statistics polling interval specified by using the flow-interval command.
To clear the Ethernet interface traffic statistics, use the reset counters interface command.
If you do not specify an interface type, this command displays traffic statistics for all interfaces that have traffic counters.
If you specify an interface type but do not specify an interface number or subinterface number, this command displays traffic statistics for all interfaces of the specified type.
If you specify an interface type and an interface or subinterface number, this command displays traffic statistics for the specified interface or subinterface.
Examples
# Display inbound traffic statistics for all GigabitEthernet interfaces.
<Sysname> display counters inbound interface gigabitethernet
Interface Total (pkts) Broadcast (pkts) Multicast (pkts) Err (pkts)
GE2/1/1 100 100 0 0
GE2/1/2 0 0 0 0
GE2/1/3 Overflow Overflow Overflow Overflow
GE2/1/4 0 0 0 0
Overflow: More than 14 digits (7 digits for column "Err").
--: Not supported.
Table 1 Command output
|
Field |
Description |
|
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. |
Related commands
flow-interval
reset counters interface
display counters rate
Use display counters rate to display traffic rate statistics for interfaces in up state over the last statistics polling interval.
Syntax
display counters rate { inbound | outbound } interface [ interface-type [ interface-number | interface-number.subnumber ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
inbound: Displays inbound traffic rate statistics.
outbound: Displays outbound traffic rate statistics.
interface-type: Specifies an interface type.
interface-number: Specifies an interface number.
interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.
Usage guidelines
If you do not specify an interface type, this command displays traffic rate statistics for all up interfaces that have traffic counters over the last statistics polling interval.
If you specify an interface type but do not specify an interface number this command displays traffic rate statistics for all up interfaces of the specified type over the last statistics polling interval.
If you specify an interface type and an interface this command displays traffic rate statistics for the specified interface over the last statistics polling interval.
If an interface that you specify is always down over the last statistics polling interval, the system prompts that the interface does not support the command.
Examples
# Display the inbound traffic rate statistics for all GigabitEthernet interfaces.
<Sysname> display counters rate inbound interface gigabitethernet
Usage: Bandwidth utilization in percentage
Interface Usage (%) Total (pps) Broadcast (pps) Multicast (pps)
GE2/1/1 3 200 100 100
GE2/1/2 5 300 200 100
GE2/1/3 5 300 200 100
Overflow: More than 14 digits.
--: Not supported.
Table 2 Command output
|
Field |
Description |
|
Interface |
Abbreviated interface name. |
|
Usage (%) |
Bandwidth usage (in percentage) of the interface over the last statistics polling interval. |
|
Total (pkts/sec) |
Average receiving or sending rate (in pps) for unicast packets over the last statistics polling interval. |
|
Broadcast (pkts/sec) |
Average receiving or sending rate (in pps) for broadcast packets over the last statistics polling interval. |
|
Multicast (pkts/sec) |
Average receiving or sending rate (in pps) for multicast packets over 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. |
Related commands
flow-interval
reset counters interface
display ethernet statistics
Use display ethernet statistics to display the Ethernet module statistics.
Syntax
In standalone mode:
display ethernet statistics slot slot-number
In IRF mode:
display ethernet statistics chassis chassis-number slot slot-number
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
slot slot-number: Specifies a card by its slot number. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. (In IRF mode.)
Examples
# (In standalone mode.) Display the Ethernet module statistics for slot 0.
<Sysname> display ethernet statistics slot 0
ETH receive packet statistics:
Totalnum : 10447 ETHIINum : 4459
SNAPNum : 0 RAWNum : 0
LLCNum : 0 UnknownNum : 0
ForwardNum : 4459 ARP : 0
MPLS : 0 ISIS : 0
ISIS2 : 0 IP : 0
IPV6 : 0
ETH receive error statistics:
NullPoint : 0 ErrIfindex : 0
ErrIfcb : 0 IfShut : 0
ErrAnalyse : 5988 ErrSrcMAC : 5988
ErrHdrLen : 0
ETH send packet statistics:
L3OutNum : 211 VLANOutNum : 0
FastOutNum : 155 L2OutNum : 0
ETH send error statistics:
MbufRelayNum : 0 NullMbuf : 0
ErrAdjFwd : 0 ErrPrepend : 0
ErrHdrLen : 0 ErrPad : 0
ErrQoSTrs : 0 ErrVLANTrs : 0
ErrEncap : 0 ErrTagVLAN : 0
IfShut : 0 IfErr : 0
# (In IRF mode.) Display the Ethernet module statistics for the card in slot 0 of IRF member device 1.
<Sysname> display ethernet statistics chassis 1 slot 0
ETH receive packet statistics:
Totalnum : 10447 ETHIINum : 4459
SNAPNum : 0 RAWNum : 0
LLCNum : 0 UnknownNum : 0
ForwardNum : 4459 ARP : 0
MPLS : 0 ISIS : 0
ISIS2 : 0 IP : 0
IPV6 : 0
ETH receive error statistics:
NullPoint : 0 ErrIfindex : 0
ErrIfcb : 0 IfShut : 0
ErrAnalyse : 5988 ErrSrcMAC : 5988
ErrHdrLen : 0
ETH send packet statistics:
L3OutNum : 211 VLANOutNum : 0
FastOutNum : 155 L2OutNum : 0
ETH send error statistics:
MbufRelayNum : 0 NullMbuf : 0
ErrAdjFwd : 0 ErrPrepend : 0
ErrHdrLen : 0 ErrPad : 0
ErrQoSTrs : 0 ErrVLANTrs : 0
ErrEncap : 0 ErrTagVLAN : 0
IfShut : 0 IfErr : 0
Table 3 Output description
|
Field |
Description |
|
ETH receive packet statistics |
Statistics about the Ethernet packets received on 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. · 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. · ISIS—Number of IS-IS packets. · ISIS2—Number of large 802.3/802.2 frames encapsulated by using IS-IS. · 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. · MbufRelayNum—Number of packets transparently sent. |
|
ETH send error statistics |
Statistics about the error Ethernet packets in the outbound direction on the Ethernet module: · 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. |
Related commands
reset ethernet statistics
display interface
Use display interface to display interface information.
Syntax
display interface [ interface-type [ interface-number | interface-number.subnumber ] ] [ brief [ description | down ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
interface-type: Specifies an interface type.
interface-number: Specifies an interface number.
interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.
brief: Displays brief interface information. If you do not specify this keyword, the command displays detailed interface information.
description: Displays complete interface descriptions. If you do not specify this keyword, the command displays only the first 27 characters of each interface description.
down: Displays information about interfaces in down state and the causes. If you do not specify this keyword, the command displays information about interfaces in all states.
Usage guidelines
If you do not specify an interface type, this command displays information about all interfaces except for VA interfaces.
If you specify an interface type but do not specify an interface number or subinterface number, this command displays information about all interfaces of the specified type.
If you specify both the interface type and interface or subinterface number, this command displays information about the specified interface or subinterface.
Examples
# Display information about the Layer 3 interface GigabitEthernet 2/1/1.
<Sysname> display interface gigabitethernet2/1/1
GigabitEthernet2/1/1
Current state: Administratively DOWN
Line protocol state: DOWN
Description: GigabitEthernet2/1/1 Interface
Bandwidth: 1000000kbps
Maximum transmission unit: 1500
Internet protocol processing: Disabled
IP packet frame type: Ethernet II, hardware address: 3822-d666-bd0c
IPv6 packet frame type: Ethernet II, hardware address: 3822-d666-bd0c
Loopback is not set
Media type is twisted pair
Promiscuous mode is not set
Unknown-speed mode, unknown-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
Flow-control is not enabled
Output queue - Urgent queuing: Size/Length/Discards 0/100/0
Output queue - Protocol queuing: Size/Length/Discards 0/500/0
Output queue - FIFO queuing: Size/Length/Discards 0/1024/0
Last link flapping: 6 hours 39 minutes 28 seconds
Last clearing of counters: Never
Peak input rate: 0 bytes/sec, at 2016-07-14 10:30:00
Peak output rate: 0 bytes/sec, at 2016-07-14 10:30:00
Last 300 second input: 0 packets/sec 0 bytes/sec 0%
Last 300 second output: 0 packets/sec 0 bytes/sec 0%
Input (total): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, - pauses
Input (normal): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses
Input: 0 input errors, 0 runts, 0 giants, 0 throttles
0 CRC, 0 frame, 0 overruns, - aborts
- ignored, - parity errors
Output (total): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, - pauses
Output (normal): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses
Output: 0 output errors, - underruns, - buffer failures
0 aborts, 0 deferred, 0 collisions, 0 late collisions
- lost carrier, - no carrier
# Display detailed information about the Layer 2 interface GigabitEthernet 2/1/1.
<Sysname> display interface gigabitethernet 2/1/1
GigabitEthernet2/1/1
Current state: DOWN
Line protocol state: DOWN
IP packet frame type: Ethernet II, hardware address: 5cdd-709f-14ef
Description: GigabitEthernet2/1/1 Interface
Bandwidth: 1000000 kbps
Loopback is not set
Media type is twisted pair
Promiscuous mode set
Unknown-speed mode, unknown-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
Flow-control is not enabled
Maximum frame length: 9664
Allow jumbo frames to pass
Broadcast max-ratio: 100%
Multicast max-ratio: 100%
Unicast max-ratio: 100%
PVID: 1
MDI type: Automdix
Port link-type: Access
Tagged VLANs: None
Untagged VLANs: 1
Output queue - Urgent queuing: Size/Length/Discards 0/100/0
Output queue - Protocol queuing: Size/Length/Discards 0/500/0
Output queue - FIFO queuing: Size/Length/Discards 0/1024/0
Last link flapping: Never
Last clearing of counters: Never
Peak input rate: 0 bytes/sec, at 2016-07-14 10:33:20
Peak output rate: 0 bytes/sec, at 2016-07-14 10:33:20
Last 5 second input: 0 packets/sec 0 bytes/sec -%
Last 5 second output: 0 packets/sec 0 bytes/sec -%
Input (total): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, - pauses
Input (normal): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, - pauses
Input: 0 input errors, 0 runts, 0 giants, - throttles
0 CRC, - frame, 0 overruns, - aborts
- ignored, - parity errors
Output (total): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, - pauses
Output (normal): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, - pauses
Output: 0 output errors, 0 underruns, - buffer failures
- aborts, 0 deferred, 0 collisions, 0 late collisions
0 lost carrier, - no carrier
Table 4 Command output
|
Field |
Description |
|
Current state |
State of the interface: · Administratively DOWN—The interface was shut down with the shutdown command. · DOWN—The interface is administratively up but physically down. There might not be a physical link present or the link has failed. · DOWN ( Link-Aggregation interface down )—The aggregate interface to which the interface belongs was shut down with the shutdown command. · IRF-link-down—The interface was shut down because IRF detected that the IRF link was down on the MDC of the IRF member device where the interface resides. · MAD ShutDown—The interface was shut down because the IRF fabric to which the interface belongs split and was in recovery state. · STP DOWN—The interface was shut down by BPDU guard. · UP—The interface is both administratively and physically up. |
|
Line protocol state |
Data link layer state of the interface. The state is determined through parameter negotiation at the data link layer. · UP—The interface is up at the data link layer. · UP (spoofing)—The data link layer protocol of the interface is UP. However, its link is an on-demand link or not present. This attribute is typical of Null interfaces and loopback interfaces. · DOWN—The data link layer protocol of the interface is down. · DOWN (protocol)—The data link layer of the interface is shut down by one or more protocols. The protocol argument can be an arbitrary combination of these protocols: OAM, LAGG, BFD, and MACSEC. For example, DOWN(LAGG) and DOWN(BFD, LAGG). ¡ When protocol contains OAM, the data link layer of the interface is down because OAM detected remote link failures. ¡ When protocol contains LAGG, the data link layer of the interface is down because the aggregate interface does not have Selected ports. ¡ When protocol contains BFD, the data link layer of the interface is down because BFD detected a link failure. ¡ When protocol contains MACSEC, the data link layer of the interface is down because MACSEC failed to negotiate the encryption parameters. |
|
Bandwidth |
Expected bandwidth of the interface. |
|
Maximum transmission unit |
MTU of the interface. |
|
Internet protocol processing: Disabled |
The interface cannot process IP packets. |
|
Internet address: 1.1.1.2/24 (primary) |
Primary IP address of the interface. |
|
IP packet frame type |
Ethernet framing format. PKTFMT_ETHNT_2 indicates that the frames are encapsulated in Ethernet II framing format. |
|
hardware address |
MAC address of the interface. |
|
IPv6 packet frame type |
IPv6 packet framing format. |
|
Loopback is set internal |
An internal loopback test is running on the interface. |
|
Loopback is set external |
An external loopback test is running on the interface. |
|
Loopback is not set |
No loopback test is running on the interface. |
|
10Mbps-speed mode |
The interface is operating at 10 Mbps. |
|
100Mbps-speed mode |
The interface is operating at 100 Mbps. |
|
1000Mbps-speed mode |
The interface is operating at 1000 Mbps. |
|
10Gbps-speed mode |
The interface is operating at 10 Gbps. |
|
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. |
|
full-duplex mode |
The interface is operating in full duplex mode. |
|
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 is not supported in the current software version. |
|
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. |
|
Port priority |
Priority of the interface. |
|
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. |
|
Last 300 second input: 0 packets/sec 0 bytes/sec 0% Last 300 second 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. |
|
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. |
# Display brief information about all interfaces.
<Sysname> display interface brief
Brief information on interfaces in route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) – spoofing
Interface Link Protocol Primary IP Description
GE2/1/0 UP UP 10.1.1.2 Link to CoreRouter
GE2/1/1 DOWN DOWN --
Loop0 UP UP(s) 2.2.2.9
NULL0 UP UP(s) --
Brief information on interfaces in bridge mode:
Link: ADM - administratively down; Stby - standby
Speed: (a) - auto
Duplex: (a)/A - auto; H - half; F - full
Type: A - access; T - trunk; H - hybrid
Interface Link Speed Duplex Type PVID Description
GE2/1/2 DOWN auto A A 1
GE2/1/3 UP 100M(a) F(a) A 1 aaaaaaaaaaaaaaaaaaaaaaaaaaa
# Display brief information about interface GigabitEthernet 2/1/0, including the complete description of the interface.
<Sysname> display interface gigabitethernet 2/1/1 brief description
Brief information on interfaces in route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface Link Protocol Primary IP Description
GE2/1/0 UP UP 10.1.1.2
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
# Display information about interfaces in DOWN state and the causes.
<Sysname> display interface brief down
Brief information on interfaces in route mode:
Link: ADM - administratively down; Stby - standby
Interface Link Cause
GE2/1/1 DOWN Not connected
Brief information on interfaces in bridge mode:
Link: ADM - administratively down; Stby - standby
Interface Link Cause
GE2/1/2 DOWN Not connected
Table 5 Command output
|
Field |
Description |
|
Brief information on interfaces in route mode: |
Brief information about Layer 3 interfaces. |
|
Link: ADM - administratively down; Stby - standby |
Link status: · ADM—The interface has been shut down by the network administrator. To recover its physical layer state, use the undo shutdown command. · Stby—The interface is operating as a backup interface. To see the primary interface, use the display interface-backup state command. |
|
Protocol: (s) – spoofing |
This field displays UP (s), where s represents the spoofing flag, when the following conditions exist: · The data link layer protocol of the interface is UP. · The link of the interface is an on-demand link or not present. This attribute is typical of interface Null 0 and loopback 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 administratively shut down. To bring up the interface, use the undo shutdown command. · Stby—The interface is a standby interface. |
|
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. However, the link is an on-demand link or not present. This value is typical of interface Null 0 and loopback interfaces. |
|
Primary IP |
Primary IP address of the interface. A hyphen (-) indicates that the interface is not configured with an IP address. |
|
Description |
Partial or complete interface description set by using the description command: · If you do not specify the description keyword for the display interface brief command, this field displays only the first 27 characters of the interface description. · If you specify the description keyword for the display interface brief command, this field displays the complete interface description. |
|
Brief information of interfaces in bridge mode: |
Brief information about Layer 2 interfaces. |
|
Speed: (a) - auto |
If the speed of an interface is automatically negotiated, the speed attribute of the interface includes the autonegotiation flag (the letter a in parentheses). If an interface is configured to autonegotiate its speed but the autonegotiation has not started, its speed attribute is displayed as auto. |
|
Duplex: (a)/A - auto; H - half; F – full |
If the duplex mode of an interface is automatically negotiated, the duplex mode attribute of the interface includes the letter a in parentheses. H indicates the half duplex mode. F indicates the full duplex mode. If an interface is configured to autonegotiate its duplex mode but the autonegotiation has not started, its duplex mode attribute is displayed as A. |
|
Type: A - access; T - trunk; H – hybrid |
Link type options for interfaces. |
|
Speed |
Interface rate, in bps. |
|
Duplex |
Duplex mode of the interface: · A—Autonegotiation. · 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 is 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 shut down. · DOWN ( Monitor-Link uplink down )—The interface is shut down because the monitor link module has detected that the uplink is down. · IRF-link-down—When IRF detects that the IRF link is down on an MDC of a member device, the physical interfaces except the excluded ports on the MDC are physically down. · MAD ShutDown—After an IRF split, all interfaces except the excluded ports in the IRF in recovery state are physically down. · Not connected—The interface is down because no physical connection exists (possibly because the network cable is disconnected or faulty). · STP DOWN—The interface is shut down by the STP BPDU guard function. · Standby—The interface is in Standby state. |
reset counters interface
duplex
Use duplex to set the duplex mode for an Ethernet interface.
Use undo duplex to restore the default.
Syntax
duplex { auto | full | half }
undo duplex
Default
10-GE interfaces operate in full duplex mode, and all other types of Ethernet interfaces operate in autonegotiation mode.
Views
Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
auto: Configures the interface to autonegotiate the duplex mode with the peer. 10-GE interfaces only support this keyword.
full: Configures the interface to operate in full duplex mode. In this mode, the interface can receive and transmit packets simultaneously.
half: Configures the interface to operate in half duplex mode. In this mode, the interface can only receive or transmit packets at a given time.
Examples
# Configure interface GigabitEthernet 2/1/1 to operate in full duplex mode.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] duplex full
flag sdh
|
|
IMPORTANT: This command is effective only when the 10-GE interface is operating in WAN mode. |
Use flag sdh to set the value for the overhead byte J0 or J1 in SDH frames on a 10-GE interface.
Use undo flag sdh to restore the default.
Syntax
flag { j0 | j1 } sdh value
undo flag { j0 | j1 } sdh
Default
The J0 and J1 bytes are padded with 0s.
Views
10-GE interface view
Predefined user roles
network-admin
mdc-admin
Parameters
j0: Specifies the Regenerator Section Trace byte J0.
j1: Specifies the Path Trace byte J1.
value: Specifies the value for the J0 or J1 byte, a string of 1 to 15 characters.
Examples
# Set the value of the J0 byte in SDH frames to Sysname.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 2/1/1
[Sysname-Ten-GigabitEthernet2/1/1] port-mode wan
[Sysname-Ten-GigabitEthernet2/1/1] flag j0 sdh Sysname
Related commands
port-mode
flow-interval
Use flow-interval to set the statistics polling interval.
Use undo flow-interval to restore the default.
Syntax
flow-interval interval
undo flow-interval
Default
The default statistics polling interval is 300 seconds.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
interval: Sets the statistics polling interval in seconds. The interval is in the range of 5 to 300 and must be a multiple of 5.
Usage guidelines
The statistics polling interval configured in system view takes effect on all Ethernet interface.
Examples
# Set the statistics polling interval to 100 seconds on Ethernet interfaces.
<Sysname> system-view
[Sysname] flow-interval 100
interface
Use interface to enter interface view, create a subinterface and enter its view, or enter the view of an existing subinterface.
Syntax
interface interface-type { interface-number | interface-number.subnumber }
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
interface-type: Specifies an interface type.
interface-number: Specifies an interface number.
interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.
Examples
# Enter the view of the interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1]
# Create Ethernet subinterface GigabitEthernet 2/1/1.1 and enter its view.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1.1
[Sysname-GigabitEthernet2/1/1.1]
jumboframe enable
Use jumboframe enable to allow jumbo frames within the specified length to pass through.
Use undo jumboframe enable to prevent jumbo frames from passing through.
Syntax
jumboframe enable [ size ]
undo jumboframe enable
Default
The device allows jumbo frames within a specific length to pass through.
Views
Layer 2 Ethernet interface view
Layer 3 Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
size: Sets the maximum length (in bytes) of Ethernet frames that are allowed to pass through.
Table 6 Values and ranges for the size argument on different types of devices
|
Type |
Description |
|
SR6604/SR6608/SR6616 |
On the FIP-240 card, the value for this argument on a GE interface is 9600 and the value for this argument on other Ethernet interfaces is 9664. On other FIP cards, the value for this argument on a GE interface is 9664. On a SAP card, the value range for this argument on a 10-GE interface is 64 to 9680. |
|
SR6604-X/SR6608-X/SR6616-X |
Usage guidelines
If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Allow jumbo frames to pass through GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] jumboframe enable
link-delay
Use link-delay to set the physical state change suppression interval on an Ethernet interface.
Use undo link-delay to restore the default.
Syntax
link-delay [ msec ] delay-time [ mode { up | updown } ]
undo link-delay [ msec ] delay-time [ mode { up | updown } ]
Default
Physical state change suppression is disabled on an Ethernet interface
Views
Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
msec: Enables the physical state change suppression interval to be accurate to milliseconds. If you do not specify this keyword, the suppression interval is accurate to seconds.
delay-time: Sets the physical state change suppression interval on the Ethernet interface. A value of 0 means that physical state changes are immediately reported to the CPU and are not suppressed.
· If you do not specify the msec keyword, the value range is 0 to 30 seconds.
· If you specify the msec keyword, the value range is 0 to 10000 milliseconds, and the value must be a multiple of 100.
mode up: Suppresses the link-up events.
mode updown: Suppresses both the link-up and link-down events.
Usage guidelines
You can configure this feature to suppress only link-down events, only link-up events, or both. If an event of the specified type still exists when the suppression interval expires, the system reports the event.
When you configure this feature, follow these guidelines:
· To suppress only link-down events, configure the link-delay [ msec ] delay-time command.
· To suppress only link-up events, configure the link-delay [ msec ] delay-time mode up command.
· To suppress both link-down and link-up events, configure the link-delay [ msec ] delay-time mode updown command.
On an interface, you can configure different suppression intervals for link-up and link-down events. If you configure the link-delay command multiple times for link-up or link-down events, the most recent configuration takes effect.
Do not configure this command on an interface with spanning tree protocols.
Examples
# Set the link-down event suppression interval to 8 seconds on the interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] link-delay 8
# Set the link-up event suppression interval to 800 milliseconds on the interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] link-delay msec 800 mode up
loopback
|
|
CAUTION: After you enable loopback testing on an Ethernet interface, the interface does not forward data traffic. |
Use loopback to enable loopback testing on an Ethernet interface.
Use undo loopback to disable loopback testing on an Ethernet interface.
Syntax
loopback { external | internal }
undo loopback
Default
Loopback testing is disabled on an Ethernet interface.
Views
Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
external: Enables external loopback testing on the Ethernet interface.
internal: Enables internal loopback testing on the Ethernet interface.
Usage guidelines
The shutdown and loopback commands are exclusive with each other.
After you enable loopback testing on an Ethernet interface, the Ethernet interface switches to full duplex mode. After you disable loopback testing, the Ethernet interface restores to its duplex setting.
Examples
# Enable internal loopback testing on GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] loopback internal
port link-mode
Use port link-mode to change the link mode of an Ethernet interface.
Use undo port link-mode to restore the default.
Syntax
port link-mode { bridge | route }
undo port link-mode
Default
Ethernet interfaces operate as Layer 3 Ethernet interfaces.
Views
Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
bridge: Specifies the Layer 2 mode.
route: Specifies the Layer 3 mode.
Usage guidelines
Ethernet interfaces can operate either as Layer 2 or Layer 3 Ethernet interfaces. You can use this command to set the link mode to bridge or route for these Ethernet interfaces as follows:
· Ethernet interfaces can operate as Layer 2 Ethernet interfaces (in bridge mode).
· Ethernet interfaces can operate as Layer 3 Ethernet interfaces (in route mode).
Changing the link mode of an Ethernet interface also restores all commands (except shutdown and combo enable) on the Ethernet interface to their defaults in the new link mode.
Examples
# Configure GigabitEthernet 2/1/1 to operate in Layer 2 mode.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] port link-mode bridge
port-mode
Use port-mode to configure a 10-GE interface to operate in LAN or WAN mode.
Use undo port-mode to restore the default.
Syntax
port-mode { lan | wan }
undo port-mode
Default
A 10-GE interface operates in LAN mode.
Views
10-GE interface view
Predefined user roles
network-admin
mdc-admin
Parameters
lan: Configures the interface to operate in LAN mode. An interface operating in this mode transmits Ethernet packets and connects an Ethernet network.
wan: Configures the interface to operate in WAN mode. An interface operating in this mode transmits SDH packets and connects an SDH network. In addition, it supports point-to-point links only.
Usage guidelines
The following interfaces support the port-mode command:
· 10-GE interfaces on SAP-20GE2XP and FIP-310 cards.
· 10-GE interfaces on HIM-1EXP and HIM-2EXP interface modules.
Examples
# Configure the interface Ten-GigabitEthernet 2/1/1 to operate in WAN mode.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 2/1/1
[Sysname-Ten-GigabitEthernet2/1/1] port-mode wan
reset counters interface
Use reset counters interface to clear the interface statistics.
Syntax
reset counters interface [ interface-type [ interface-number | interface-number.subnumber ] ]
Views
User view
Predefined user roles
network-admin
mdc-admin
Parameters
interface-type: Specifies an interface type.
interface-number: Specifies an interface number.
interface-number.subnumber: Specifies a subinterface number. The interface-number argument is an interface number. The subnumber argument is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to 4094.
Usage guidelines
Use this command to clear history statistics if you want to collect traffic statistics for a specific time period.
If you do not specify an interface type, this command clears statistics for all interfaces except for VA interfaces.
If you specify an interface type but do not specify an interface number, this command clears statistics for all interfaces of the specified type.
If you specify both the interface type and the interface or subinterface number, this command clears statistics for the specified interface or subinterface.
Examples
# Clear the statistics for GigabitEthernet 2/1/1.
<Sysname> reset counters interface gigabitethernet 2/1/1
Related commands
display interface
display counters interface
display counters rate interface
reset ethernet statistics
Use reset ethernet statistics to clear the Ethernet module statistics.
Syntax
In standalone mode:
reset ethernet statistics [ slot slot-number ]
In IRF mode:
reset ethernet statistics [ chassis chassis-number slot slot-number ]
Views
User view
Predefined user roles
network-admin
mdc-admin
Parameters
slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command clears statistics for all cards. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command clears statistics for all cards of all IRF member devices. (In IRF mode.)
Examples
# (In standalone mode.) Clear the Ethernet module statistics for slot 0.
<Sysname> reset ethernet statistics slot 0
# (In IRF mode.) Clear the Ethernet module statistics for the card in slot 0 of IRF member device 1.
<Sysname> reset ethernet statistics chassis 1 slot 0
Related commands
display ethernet statistics
shutdown
Use shutdown to shut down an Ethernet interface or subinterface.
Use undo shutdown to bring up an Ethernet interface or subinterface.
Syntax
shutdown
undo shutdown
Default
Ethernet interfaces or subinterfaces are enabled.
Views
Ethernet interface view
Ethernet subinterface view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
Some interface configurations might require an interface restart before taking effect.
The shutdown and loopback commands are exclusive with each other.
Examples
# Shut down and then bring up GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] shutdown
[Sysname-GigabitEthernet2/1/1] undo shutdown
# Shut down and then bring up GigabitEthernet 2/1/1.1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1.1
[Sysname-GigabitEthernet2/1/1.1] shutdown
[Sysname-GigabitEthernet2/1/1.1] undo shutdown
speed
Use speed to set the speed of an Ethernet interface.
Use undo speed to restore the default.
Syntax
speed { 10 | 100 | 1000 | auto }
undo speed
Default
The default speed of an Ethernet interface is set to auto.
Views
Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
10: Sets the interface speed to 10 Mbps.
100: Sets the interface speed to 100 Mbps.
1000: Sets the interface speed to 1000 Mbps.
auto: Enables the interface to negotiate a speed with its peer. 10-GE interfaces only support this keyword.
Usage guidelines
For a fiber port with SFP-GE-T transceiver module installed, you must set its speed to 1000 Mbps and set the speed of its peer interface to 1000 Mbps or auto.
For an Ethernet copper port, use the speed command to set its speed to match the speed of the peer interface.
For a fiber port, use the speed command to set its speed to match the rate of a transceiver module.
Examples
# Configure GigabitEthernet 2/1/1 to autonegotiate the speed.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] speed auto
sub-interface rate-statistic
Use sub-interface rate-statistic to enable rate statistics collection for the subinterfaces of an Ethernet interface.
Use undo sub-interface rate-statistic to disable rate statistics collection for the subinterfaces of an Ethernet interface.
Syntax
sub-interface rate-statistic
undo sub-interface rate-statistic
Default
The system does not collect rate statistics for the subinterfaces of an Ethernet interface.
Views
Ethernet interface view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
This command is resource intensive. When you use this command, make sure you fully understand its impact on system performance.
Examples
# Enable rate statistics collection for the subinterfaces of GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] sub-interface rate-statistic
This configuration may make a negative effect on the performance. Are you sure to continue? [Y/N]:y
Layer 3 Ethernet interface or subinterface commands
mtu
Use mtu to set the MTU for an Ethernet interface or subinterface.
Use undo mtu to restore the default.
Syntax
mtu size
undo mtu
Default
The MTU of an Ethernet interface or subinterface is 1500 bytes.
Views
Layer 3 Ethernet interface view
Layer 3 Ethernet subinterface view
Predefined user roles
network-admin
mdc-admin
Parameters
size: Sets the MTU in bytes. The value range for this argument is 46 to 9600.
Usage guidelines
A smaller MTU size results in more fragments. When you set the MTU for an interface, consider QoS queue lengths, for example, consider that the default FIFO queue length is 75. To prevent a too small MTU from causing packet drops in QoS queuing, you can perform one of the following configurations:
· Tune the MTU with the mtu command.
· Tune QoS queue lengths with the qos fifo queue-length command.
For more information about the qos fifo queue-length command, see ACL and QoS Command Reference.
Examples
# Set the MTU to 1430 bytes for the Layer 3 Ethernet interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] mtu 1430
# Set the MTU to 1430 bytes for the Layer 3 Ethernet subinterface GigabitEthernet 2/1/1.1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1.1
[Sysname-GigabitEthernet2/1/1.1] mtu 1430
port-type switch
|
|
IMPORTANT: This command is supported only on devices installed with HIM-TS8P interface modules. |
Use port-type switch to change the type of an interface.
Syntax
In standard POS interface view:
port-type switch gigabitethernet
In Layer 3 GigabitEthernet interface view:
port-type switch pos
Views
Standard POS interface view
Layer 3 GigabitEthernet interface view
Predefined user roles
network-admin
mdc-admin
Parameters
gigabitethernet: Changes a standard POS interface to a Layer 3 GigabitEthernet interface.
pos: Changes a Layer 3 GigabitEthernet interface to a standard POS interface.
Usage guidelines
This command removes the original interface, and then creates the target interface with the same number as the original interface.
The device enters the view of the new interface automatically after you execute this command.
Examples
# Change POS 2/1/1 to GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface pos 2/1/1
[Sysname-Pos2/1/1] port-type switch gigabitethernet
Changing port type can result in loss of port configuration. Are you sure to continue? [Y/N]:y
[Sysname-GigabitEthernet2/1/1]
traffic-statistic enable
Use traffic-statistic enable to enable the traffic statistics feature for an Ethernet subinterface.
Use undo traffic-statistic enable to disable the traffic statistics feature for an Ethernet subinterface.
Syntax
traffic-statistic enable
undo traffic-statistic enable
Default
The traffic statistics feature is disabled for an Ethernet subinterface.
Views
Layer 3 Ethernet subinterface view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
This command is resource intensive. When you use this feature, make sure you fully understand its impact on system performance.
After the traffic statistics feature is enabled for an Ethernet subinterface, you can use the Input and Output fields in the display interface command output or use the display counters command to display the traffic statistics for the Ethernet subinterface.
Examples
# Enable the traffic statistics feature for GigabitEthernet 2/1/1.1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1.1
[Sysname-GigabitEthernet2/1/1.1] traffic-statistic enable
Related commands
display interface
display counters
