Dell Command Line Reference Guide for the S4048–ON System 9.14.2.8

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show interfaces

Display information on a specific physical interface or virtual interface.

Syntax
show interfaces interface-type[—range]
Parameters
interface
Enter one of the following keywords and the interface information:
  • For a Loopback interface, enter the keyword loopback then a number from 0 to 16383.
  • For stack-units, enter the keywords stack-unit then the slot/port information.
  • For a Null interface, enter the keyword null then the Null interface number.
  • For a port channel interface, enter the keywords port-channel then a number.
  • For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port[/subport] information.
  • For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information.
  • For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
  • For a tunnel interface, enter the keyword tunnel then the tunnel ID. The range is from 1 to 16383.
NOTE: This command also enables you to view information corresponding to a range of ports. However, for Open Networking (ON) platforms the notation for specifying port range in the command is different from how you specify in non-ON platforms.
-range
(Optional) Enter the range of interfaces for which you want to view the information. The format is interface-type slot/port/[subport]-slot/port/[subport]
Command Modes
  • EXEC
  • EXEC Privilege
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.14(1.3)
Included the FEC types in the output for 25G, 50G, and 100G interfaces of the Z9100–ON.
9.14(0.0)
Included the FEC counter details in the output for 25 and 50G interfaces of the S5048–ON.
9.12(1.0)
Introduced on the S5048F–ON.
9.12(0.0)
Added the OUI value in the command output for the Z9100–ON.
9.11(0.0)

Included the FEC BER details in the output for 100G interfaces of S6100–ON and Z9100–ON.

Added support to display 10GBASE-T information on the S4048, S4048T, S6000, S6000-ON, S6100, Z9500, S6010, and Z9100.

Included display information about EEE on the S3048–ON.

9.10(0.1)
Introduced on the S6010-ON and S4048T-ON. Included display information about EEE on the S3100 series, S4820T, and S5000.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100–ON.
9.9(0.0)
Added support to display the interface configurations corresponding to a range of ports.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100–ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.7(0.0)
Introduced on the S6000-ON.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
9.2(0.2)
Added support for the tunnel interface type.
9.1(0.0)
Updated Management Ethernet output to include two global IPv6 addresses on S4810 and Z9000 and added output example showing OpenFlow instance ID.
8.3.12.1
Updated command output to support multiple IPv6 addresses on S4810.
8.3.11.4
Output expanded to support eSR4 optics in Z9000.
8.3.11.1
Introduced on the Z9000.
8.5.1.0
Added support for 4-port 40G line cards on the E-Series.
8.3.7.0
Introduced on the S4810.
8.2.1.2
Included SFP and SFP+ optics power detail in the E-Series and C-Series output.
8.2.1.0
Added support for 4093 VLANs on the E-Series. Prior releases supported 2094.
8.1.1.0
Introduced on the E-Series.
7.8.1.0
Output expanded to include SFP+ media on the C-Series.
7.6.1.0
Introduced on the S Series.
7.5.1.0
Introduced on the C-Series.
6.4.1.0
Changed the organization of the display output.
6.3.1.0
Added the Pluggable Media Type field in the E-Series output.
Usage Information

Use the show interfaces command for details on a specific interface.

NOTE: In the CLI output, the power value is rounded to a 3-digit value. For receive/transmit power that is less than 0.000, an snmp query returns the corresponding dbm value even though the CLI displays as 0.000.
NOTE: After the counters are cleared, the line-rate continues to increase until it reaches the maximum line rate. When the maximum line rate is reached, there is no change in the line-rate.
User Information

The following table describes the show interfaces command shown in the 10G example.

Line
Description
TenGigabitEthernet 1/1...
Interface type and administrative and line protocol status.
Hardware is...
Interface hardware information, assigned MAC address, and current address.
Pluggable media present...
Present pluggable media wavelength, type, and rate. The error scenarios are:
  • Wavelength, unknown — Unable to determine the optics type
  • Unknown — If the wavelength is reading an error

Dell EMC Networking allows unsupported SFP and XFP transceivers to be used, but Dell EMC Networking OS might not be able to retrieve some data about them. In that case, typically when the output of this field is “Pluggable media present, Media type is unknown”, the Medium and the XFP/SFP receive power reading data might not be present in the output.

Interface index...
Displays the interface index number the SNMP uses to identify the interface.
Internet address...
States whether an IP address is assigned to the interface. If an IP address is assigned, that address is displayed.
MTU 1554...
Displays link and IP MTU information.
LineSpeed
Displays the interface’s line speed, duplex mode, and negotiation mode.
Energy Efficient Ethernet
Displays whether Energy Efficient Ethernet has been enabled or not.
ARP type:...
Displays the ARP type and the ARP timeout value for the interface.
Last clearing...
Displays the time when the show interfaces counters where cleared.
Queuing strategy...
States the packet queuing strategy. FIFO means first in first out.
Input Statistics:
Displays all the input statistics including:
  • Number of packets and bytes into the interface
  • Number of packets with VLAN tagged headers
  • Packet size and the number of those packets inbound to the interface
  • Number of Multicast and Broadcast packets:
    • Multicasts = number of MAC multicast packets
    • Broadcasts = number of MAC broadcast packets
  • Number of runts, giants, and throttles packets:
    • runts = number of packets that are less than 64B
    • giants = packets that are greater than the MTU size
    • throttles = packets containing PAUSE frames
  • Number of CRC, overrun, and discarded packets:
    • CRC = packets with CRC/FCS errors
    • overrun = number of packets discarded due to FIFO overrun conditions
    • discarded = the sum of runts, giants, CRC, and overrun packets discarded without any processing
Output Statistics:
Displays output statistics sent out of the interface including:
  • Number of packets, bytes, and underruns out of the interface
  • Packet size and the number of the packets outbound to the interface
  • Number of Multicast, Broadcast, and Unicast packets:
    • Multicasts = number of MAC multicast packets
    • Broadcasts = number of MAC broadcast packets
    • Unicasts = number of MAC unicast packets
  • Number of VLANs, throttles, discards, and collisions:
    • Vlans = number of VLAN tagged packets
    • throttles = packets containing PAUSE frames
    • discarded = number of packets discarded without any processing
    • collisions = number of packet collisions
    • wred=count both packets discarded in the MAC and in the hardware-based queues
Rate information...
Estimate of the input and output traffic rate over a designated interval (30 to 299 seconds). Traffic rate is displayed in bits, packets per second, and percent of line rate.
Time since...
Elapsed time since the last interface status change (hh:mm:ss format).
Example
Example
DellEMC# show interfaces
TenGigabitEthernet 1/1 is down, line protocol is down
Hardware is DellEMCEth, address is 00:a0:c9:00:00:0b
    Current address is 00:a0:c9:00:00:0b
Pluggable media present, QSFP type is 40GBASE-CR4-1M
Interface index is 2097156
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :00a0c900000b
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 10000 Mbit
Flowcontrol rx off tx off
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 1d18h54m
Queueing strategy: fifo
Input Statistics:
     0 packets, 0 bytes
     0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
     0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
     0 Multicasts, 0 Broadcasts, 0 Unicasts
     0 runts, 0 giants, 0 throttles
     0 CRC, 0 overrun, 0 discarded
Output Statistics:
     0 packets, 0 bytes, 0 underruns
     0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
     0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
     0 Multicasts, 0 Broadcasts, 0 Unicasts
     0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
     Input 00.00 Mbits/sec,          0 packets/sec, 0.00% of line-rate
     Output 00.00 Mbits/sec,          0 packets/sec, 0.00% of line-rate
Time since last interface status change: 1d18h54m


TenGigabitEthernet 1/1 is down, line protocol is down
Hardware is Eth, address is 00:a0:c9:00:00:0b
    Current address is 00:a0:c9:00:00:0b
Pluggable media present, QSFP type is 40GBASE-CR4-1M
Interface index is 2097284
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :00a0c900000b
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 10000 Mbit
Flowcontrol rx off tx off
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 1d18h54m
Usage Information

The Management port is enabled by default (no shutdown). If necessary, use the ip address command to assign an IP address to the Management port. If two RPMs are installed in your system, use the show redundancy command to display which RPM is the Primary RPM.

Example
DellEMC# show interfaces tengigabitethernet 1/1
TenGigabitEthernet 1/1 is up, line protocol is down
Hardware is DellEMCEth, address is 00:01:e8:41:77:95
  Current address is 00:01:e8:41:77:95
Pluggable media present, SFP type is 1000BASE-SX
  Wavelength is 850nm
Interface index is 100974648
Port will not be disabled on partial SFM failure
Internet address is not set
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 1000 Mbit
Flowcontrol rx on tx on
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 1w0d5h
Queueing strategy: fifo
Input Statistics:
  0 packets, 0 bytes
  0 Vlans
  0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
  0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
  0 Multicasts, 0 Broadcasts
  0 runts, 0 giants, 0 throttles
  0 CRC, 0 overrun, 0 discarded
Output Statistics:
  0 packets, 0 bytes, 0 underruns
  0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
  0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
  0 Multicasts, 0 Broadcasts, 0 Unicasts
  0 Vlans, 0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
  Input 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
  Output 00.00 Mbits/sec, 0 packets/sec,0.00% of line-rate
Time since last interface status change: 1w0d5h
DellEMC#
Example (Management Ethernet)
DellEMC# show interfaces managementethernet 1/1

ManagementEthernet 1/1 is up, line protocol is up
Hardware is DellEMCEth, address is 00:01:e8:0b:a9:4c
  Current address is 00:01:e8:0b:a9:4c
Pluggable media not present
Interface index is 503595208
Internet address is 10.11.201.5/16
Link local IPv6 address: fe80::201:e8ff:fe0b:a94c/64
Global IPv6 address: 2222::5/64
Virtual-IP is not set
Virtual-IP IPv6 address is not set
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 10 Mbit, Mode full duplex
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 04:01:08
Queueing strategy: fifo
  Input 943 packets, 78347 bytes, 190 multicast
  Received 0 errors, 0 discarded
  Output 459 packets, 102388 bytes, 15 multicast
  Output 0 errors, 0 invalid protocol
Time since last interface status change: 00:03:09
Example (Management Ethernet, two IPv6 addresses)

DellEMC# show interfaces managementethernet 1/1

ManagementEthernet 1/1 is up, line protocol is up

Hardware is DellForce10Eth, address is 00:01:e8:a0:bf:f3

Current address is 00:01:e8:a0:bf:f3

Pluggable media not present

Interface index is 302006472

Internet address is 10.16.130.5/16

Link local IPv6 address: fe80::201:e8ff:fea0:bff3/64

Global IPv6 address: 1::1/

Global IPv6 address: 2::1/64

Virtual-IP is not set

Virtual-IP IPv6 address is not set

MTU 1554 bytes, IP MTU 1500 bytes

LineSpeed 1000 Mbit, Mode full duplex

ARP type: ARPA, ARP Timeout 04:00:00

Last clearing of "show interface" counters 00:06:14

Queueing strategy: fifo

Input 791 packets, 62913 bytes, 775 multicast

Received 0 errors, 0 discarded

Output 21 packets, 3300 bytes, 20 multicast

Output 0 errors, 0 invalid protocol

Time since last interface status change: 00:06:03

Example (OpenFlow instance)
DellEMC# show interfaces vlan 6
Vlan 6 is down, line protocol is down 
Address is 00:01:e8:8a:e1:8c,
		Current address is 00:01:e8:8a:e1:8c
Interface index is 1107525638
of-instance: 2
Internet address is not set
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed auto
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 00:05:12
Queueing strategy: fifo
Time since last interface status change: 00:05:12
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