Ethernet Interface Commands

interface ethernet

	interface ethernet <slot>/<port>[/<subport>][-<slot>/<port>[/<subport>]] Enters the Ethernet interface or Ethernet interface range configuration mode.
Syntax Description	<slot>/<port>	Ethernet port number
Syntax Description	subport	Ethernet subport number to be used if a port is split
Default	N/A
Configuration Mode	config
History	3.1.0000
History	3.2.1100	Added range support
Example	switch (config) # interface ethernet 1/1 switch (config) # interface ethernet 1/1) # exit switch (config) # interface ethernet 1/1-1/10 switch (config) # interface ethernet 1/1-1/10) #
Related Commands
Notes

boot-delay

	boot-delay [<time>] no boot-delay Configures interface boot-delay timer. The no form of the command returns boot-delay time to its default value.
Syntax Description	time	Boot delay time in seconds Range: 0-600
Default	0 seconds
Configuration Mode	config interface ethernet config interface port-channel config interface mlag-port-channel
History	3.6.2002
Example	switch (config interface ethernet 1/1) # boot-delay 60
Related Commands	show interfaces ethernet
Notes	This command delays the interface from boot time of the interface Configuration save and system reboot is required for the configuration to take effect

default interface ethernet

	default interface ethernet <slot/port> Resets a port to its default settings
Syntax Description	slot/port	Number of Ethernet interface in form of slot/port
Default	N/A
Configuration Mode	config
History	3.9.1000
Example	switch (config) # default interface ethernet 1/1
Related Commands	interfaces ethernet
Notes	If one of the following configurations exist on the port, the command will be blocked and an informative message will appear. Port is a BGP update source port (when the IP of the port is taken and used as a source IP for BGP routing updates and for TCP connection establishment with neighbor or peer-group). Port is a PIM update source port (when the IP of the port is taken and used as source IP in PIM communications). Port is an IP PIM rp-candidate. Port is an IP PIM bsr-candidate. Port is a member in LAG router port. Port is a member in LAG in NVE mode.

description

	description <string> no description Configures an interface description. The no form of the command returns the interface description to its default value.
Syntax Description	string	40 bytes
Default	""
Configuration Mode	config interface ethernet config interface port-channel config interface mlag-port-channel
History	3.1.0000
History	3.3.4500	Added MPO configuration mode
Example	switch (config interface ethernet 1/1) # description my-interface
Related Commands	show interfaces ethernet
Notes

fec-override

	fec-override <fec-configuration> [force] no fec-override <fec-configuration> [force] Changes FEC configuration on a specific port or range of ports. The no form of the command resets this parameter to its default value.
Syntax Description	fec-configuration	fc-fec –FireCode FEC no-fec –does not use FEC rs-fec –Reed Solomon FEC
Syntax Description	force
Default	Auto-FEC selection
Configuration Mode	config interface ethernet
History	3.5.0000
	3.6.2002	Added force option
	3.7.1000	Updated Example
Example	switch (config interface ethernet 1/1) # fec-override fc-fec
Related Commands	show interfaces ethernet
Notes	Use this command with caution. There is no limitation in configuring non-standard FEC. It may cause the link to malfunction.

flowcontrol

	flowcontrol {receive \| send} {off \| on} [force] Enables or disables IEEE 802.3x link-level flow control per direction for the specified interface.
Syntax Description	receive \| send	receive –ingresses direction send –egresses direction
	off \| on	on –enables IEEE 802.3x link-level flow control for the specified interface on receive or send off –disables IEEE 802.3x link-level flow control for the specified interface on receive or send
	force	Forces configuration without the need to toggle the interface
Default	receive off; send off
Configuration Mode	config interface ethernet config interface port-channel config interface mlag-port-channel
History	3.1.0000
History	3.3.4500	Added MPO configuration mode
Example	switch (config interface ethernet 1/1) # flowcontrol receive on
Related Commands	show interfaces ethernet
Notes	To configure global pause please see section “Flowcontrol (Global pause)”.

ip address dhcp

	ip address dhcp no ip address dhcp Enables DHCP on this Ethernet interface.
Syntax Description	N/A
Default	Disabled
Configuration Mode	config interface ethernet set as router interface config interface port-channel set as router interface
History	3.4.2008
Example	switch (config interface ethernet 1/1) # ip address dhcp
Related Commands	show interfaces ethernet
Notes

load-interval

	load-interval <time> no load-interval Sets the interface counter interval. The no form of the command resets the interval to its default value.
Syntax Description	time	In seconds
Default	300 seconds
Configuration Mode	config interface ethernet config interface port-channel config interface mlag-port-channel
History	3.3.0000
History	3.3.4500	Added MPO configuration mode
Example	switch (config interface ethernet 1/1) # load-interval 30
Related Commands	show interfaces ethernet
Notes	This interval is used for the ingress rate and egress rate counters

module-type

	module-type <type> [force] no module-type <type> [force] Splits the interface into two, four, or eight separate interfaces and specifies the module type intended to be used (QSFP or QSFP-DD).The no form of the command resets the interface to its default configuration (non-split)
Syntax Description	type	qsfp-split-2 – port is split into 2 ports using QSFP module, each can run at up to 50GbE qsfp-split-4 – port is split into 4 ports using QSFP module, each can run at up to 25GbE qsfp-dd-split-2 – port is split into 2 ports using QSFP-DD module, each can run at up to 200GbE. qsfp-dd-split-4 – port is split into 4 ports using QSFP-DD module, each can run at up to 100GbE. qsfp-dd-split-8 – port is split into 8 ports using QSFP-DD module, each can run at up to 50GbE.
Syntax Description	force	Force the split operation without asking for user confirmation.
Default	non-split
Configuration Mode	config interface ethernet
History	3.1.1400
	3.5.0000	Added note
	3.6.3640	Added note
	3.6.4006	Added note
	3.9.0900	Added QSFP-DD split types Removed “module-type qsfp” command
	3.10.3100	Added split to 8 for PAM4-based, Spectrum-3 systems.
Example	switch (config interface ethernet 1/4) # module-type qsfp-split-4 The following interfaces will be unmapped: 1/4 1/1 Type 'YES' to confirm split: YES
Related Commands	show interfaces ethernet
Notes	Port cannot be split when storm-control is configured on port Force command don't remove storm-control configuration. Error output: % Storm control configuration must be removed from interface Eth1/2 After a split port is created or deleted, the forwarding mode for each split port is set according to the global configuration The affected interfaces should be disabled prior to the operation In order to unsplit the interface, use the “no” command. The following speeds are supported on the different Ethernet interface types and depend on the system types and plugged module: non-split: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE, 56GbE, 100GbE, 200GbE, 400GbE qsfp-split-2: 1GbE, 10GbE, 25GbE, 50GbE qsfp-split-4: 1GbE, 10GbE, 25GbE qsfp-dd-split-2: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE, 100GbE, 200GbE, qsfp-dd-split-4: 1GbE, 10GbE, 25GbE, 50GbE, 100GbE qsfp-dd-split-8: 1GbE, 10GbE, 25GbE, 50GbE When using split-to-4 and split-to-8, only odd ports can be split. In case split is used, the following even port will be unmapped (e.g., splitting port 1/17 to 4 or to 8 will unmap port 1/18). (s(.split 1/17 to 8 will unmap 1/18)(split 1/17 to 8 will unmap 1/18)plit 1(split 1/17 to 8 will unmap 1/18)(split 1/17 to 8 will unmap 1/18)/17 to 8 will unmap 1/18)

mtu

	mtu <frame-size> Configures the Maximum Transmission Unit (MTU) frame size for the interface.
Syntax Description	frame-size	Range: 1500-9216 bytes
Default	9216 bytes
Configuration Mode	config interface ethernet config interface port-channel config interface mlag-port-channel
History	3.1.0000
	3.3.4500	Added MPO configuration mode
	3.9.2000	Updated default MTU size and added note
Example	switch (config interface ethernet 1/4) # mtu 9216
Related Commands	show interfaces ethernet
Notes	Switches that perform upgrade to version 3.9.2000, existing interfaces will stay with MTU 1500 (or any other value that was configured). Newly created interfaces (created by split/unsplit operation) will be created with MTU 9216 (the new default). The configured and displayed MTU represents the L3 MTU (being used in IP interfaces). The L2 MTU (being used in physical interfaces) is automatically configured as L3 MTU + 22 Bytes.

recirculation

	recirculation [force] no recirculation Sets the recirculation port. The no form of the command unsets the recirculation port.
Syntax Description	N/A
Default	Disabled
Configuration Mode	config interface ethernet
History	3.9.0300
History	3.9.1000	Added note
Example	switch (config interface ethernet 1/1) # recirculation force
Related Commands	what-just-happened buffer enable
Notes	This command reduces by 1 the number of monitor sessions that can be configured. It will fail if the maximum number of monitor sessions are already configured.

no recirculation port interface ethernet

	no recirculation port interface ethernet <port_num> Disables the recirculation port.
Syntax Description	port_num	Port number
Default	N/A
Configuration Mode	config
History	3.9.0300
Example	switch (config) # no recirculation port interface ethernet 1/2
Related Commands	recirculation show recirculation port
Notes

shutdown

	shutdown no shutdown Disables the interface. The no form of the command enables the interface.
Syntax Description	N/A
Default	Interface is enabled
Configuration Mode	config interface ethernet config interface port-channel config interface mlag-port-channel
History	3.1.0000
History	3.3.4500	Added MPO configuration mode
Example	switch (config interface ethernet 1/4) # shutdown
Related Commands	show interfaces ethernet
Notes

speed

	speed {<value> [no-autoneg \| speed_value [... speed_value]] \| <auto>} [force] no speed Sets the speed of the interface. The no form of the command sets the speed of the interface to its default value.
Syntax Description	value	The following speeds are available: 1G or 1000—1GbE 10G or 10000—10GbE 25G or 25000—25GbE 40G or 40000—40GbE 50G or 50000—50GbE (This speed refers to the speed 50Gx2. See below) 50Gx1—Port runs at 50Gbps using 1 lane for transmitting (50G PAM4: 1 lane * 50 Gbps) 50Gx2—Port runs at 50Gbps using 2 lanes for transmitting (50G NRZ: 2 lane * 25 Gbps) 50GxAuto—Port runs at 50Gbps with auto-select lane count 56G or 56000—56GbE 100G or 100000—100GbE (This speed refers to the speed 100Gx4. See below) 100Gx2—Port runs at 100Gbps using 2 lanes for transmitting (100G PAM4: 2 lanes * 50 Gbps) 100Gx4—Port runs at 100Gbps using 4 lanes for transmitting (100G NRZ: 4 lanes * 25 Gpbs) 100GxAuto—Port runs at 100Gbps with auto-select lane count 200G or 200000—200GbE (This speed refers to the speed 200Gx4. See below) 200Gx4—Port runs at 200Gbps using 4 lanes for transmitting (200G PAM4: 4 lanes * 50 Gbps) 400G or 400000—400GbE (This speed refers to the speed 400Gx8. See below) 400Gx8 – Port runs at 400Gbps using 8 lanes for transmitting (400G PAM4: 8 lanes * 50 Gbps) auto—auto-negotiates link speed (not supported on MPO or LAG interfaces)
	no-autoneg	Disallows auto negotiation link speed on the interface (not supported on MPO or LAG interfaces)
	force	Forces speed change configuration
Default	Depends on the port module type (see the “Notes” section below)
Configuration Mode	config interface ethernet config interface port-channel config interface mlag-port-channel
History	3.1.0000
	3.5.0000	Added 25GbE, 50GbE, and 100GbE speeds and updated notes
	3.6.6000	Added no-autoneg parameter
	3.9.0600	Removed no-autoneg parameter
	3.9.1000	Updated notesAdded speed with lane configuration
	3.9.2000	Added no-autoneg parameter
Example	switch (config interface ethernet 1/1) # speed 40G switch (config interface ethernet 1/2) # speed 40G no-autoneg switch (config interface ethernet 1/3) # speed 25G no-autoneg force
Related Commands	show interfaces ethernet
Notes	The default speed of an interface depends on its speed capabilities. It is not possible to set the speed on a LAG or MPO interface Not all interfaces support all speed options It is not possible to set “auto” speed along with specific speeds A port with more than one speed advertised or a port configured to “auto” speed cannot be added to LAG To change the speed of a LAG interface: Remove Ethernet ports from LAG. Shutdown ports. Reconfigure port speed. Re-enable ports. Re-add ports to LAG interface. Speed configuration with lane count affects the Spectrum-2 and Spectrum-3 systems only.

clear counters

	clear counters Clears the interface counters.
Syntax Description	N/A
Default	N/A
Configuration Mode	config interface ethernet config interface port-channel config interface mlag-port-channel
History	3.1.0000
History	3.3.4500	Added MPO configuration mode
Example	switch (config interface ethernet 1/1) # clear counters
Related Commands	show interfaces ethernet
Notes	This command also clears NVE counters

show interfaces counters

	show interfaces <type> <id> counters Displays the extended counters for the interface.
Syntax Description	id	Interface number: <slot>/<port> or <slot>/<port>-<slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000
	3.6.1002	Added “error packets” counter to Tx
	3.6.4006	Added extended output for storm-control
	3.6.5000	Added hoq discard packets counter
	3.9.0500	Removed Priority option
	3.9.1000	Added ability to use a range of ports and added "ECN marked packets" counter
	3.8.1300	Added note
Example	switch (config) # show interfaces ethernet 1/1-1/2 counters Eth1/1: Rx: 0 packets 0 unicast packets 0 multicast packets 0 broadcast packets 0 bytes 0 packets of 64 bytes 0 packets of 65-127 bytes 0 packets of 128-255 bytes 0 packets of 256-511 bytes 0 packets of 512-1023 bytes 0 packets of 1024-1518 bytes 0 packets Jumbo 0 discard packets 0 error packets 0 fcs errors 0 undersize packets 0 oversize packets 0 pause packets 0 unknown control opcode 0 symbol errors 0 discard packets by storm control Tx: 0 packets 0 unicast packets 0 multicast packets 0 broadcast packets 0 bytes 0 discard packets 0 error packets 0 hoq discard packets 0 pause packets 0 pause duration 0 ECN marked packets Eth1/2: . . .
Related Commands
Notes	NVIDIA-Spectrum-based systems display queue depth for TC0-TC7 As of version 3.9.1000, the "id" attribute is optional. If nothing is selected, information for all ports will be displayed Discard Packets counter refers to discards due to insufficient buffer in both RX and TX

show interfaces counters discard

	show interfaces <type> <id> counters discard Displays discarded counters of the interface.
Syntax Description	id	Interface number: <slot>/<port> or <slot>/<port>-<slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.6.6102
History	3.9.1000	Made "id" attribute optional
Example	switch (config) # show interfaces ethernet 1/24 counters discard Interface Eth1/24: Rx: 0 discard packets 0 error packets 0 fcs errors 0 undersize packets 0 oversize packets 0 pause packets 0 unknown control opcode 0 symbol errors 0 discard packets by storm control 0 general discard packets 0 policy discard packets 0 invalid tag packets 0 discard packets by vlan filter Tx: 1154059970 discard packets 0 error packets 0 hoq discard packets 0 oversize packets 0 policy discard packets 0 SLL discard packets 11500 no buffer discard mc packets 0 discard packets by vlan filter 0 discard packets by stp filter 0 discard packets by loopback filter
Related Commands
Notes	Discard Packets counter refers to discards due to insufficient buffer in both RX and TX. The "id" attribute is optional. If nothing is selected, information for all ports will be displayed

show interfaces ethernet

	show interfaces ethernet <inf> [cable-length \| capabilities \| congestion-control \| counters \| description \| link-diagnostics \| pfc-wd \| signal-degrade \| status \| switchport \| transceiver] Displays the configuration and status for the interface.
Syntax Description	inf	Interface number: <slot>/<port> or <slot>/<port>-<slot>/<port>
	cable-length	Display cable-length of specific interfaces
	capabilities	Display specific interfaces capabilities information
	congestion-control	Display specific interface congestion control information
	counters	Display specific interfaces counters
	description	Display specific interfaces description information
	link-diagnostics	Display interfaces link diagnostics information
	pfc-wd	Display pfc-wd information
	signal-degrade	Display interfaces signal degrade information
	status	Display specific interfaces status information
	switchport	Display specific interface VLAN-membership information
	transceiver	Display detailed cable info for this port
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000
	3.6.1002	Added “error packets” counter to Tx, “Last change in operational status”, and “Isolation group” to output
	3.6.2002	Added “boot delay” parameters to output
	3.6.3640	Added support for “forwarding mode”
	3.6.4110	Updated Example with “Forwarding mode”
	3.6.5000	Added telemetry to output
	3.6.6000	Added output line for “auto-negotiation”
	3.6.8008	Updated example
	3.6.8100	Updated example
	3.7.1100	Updated example and notes
	3.9.1000	Added ability to use a range of ports and updated example
Example	switch (config) # show interfaces ethernet 1/1 Eth1/1: Admin state : Disabled Operational state : Down Last change in operational status: Never Boot delay time : 0 sec Description : N/A Mac address : 98:03:9b:94:d9:a0 MTU : 1500 bytes (Maximum packet size 1522 bytes) Fec : auto Operational Fec : no-fec Flow-control : receive off send off Supported speeds : 1G 10G 25G 40G 50Gx1 50Gx2 100Gx2 100Gx4 200Gx4 400Gx8 Advertised speeds : 100Gx4 Actual speed : Unknown Auto-negotiation : Enabled Width reduction mode : Unknown Switchport mode : access MAC learning mode : Enabled Forwarding mode : inherited cut-through FCS Ingress : Enabled CRC check FCS Egress : Enabled CRC recalculate FCS Timestamping : Enabled Telemetry sampling: Disabled TCs: N/A Telemetry threshold: Disabled TCs: N/A Telemetry threshold level: N/A Last clearing of "show interface" counters: Never 60 seconds ingress rate : 0 bits/sec, 0 bytes/sec, 0 packets/sec 60 seconds egress rate : 0 bits/sec, 0 bytes/sec, 0 packets/sec Rx: 0 packets 0 unicast packets 0 multicast packets 0 broadcast packets 0 bytes 0 discard packets 0 error packets 0 fcs errors 0 undersize packets 0 oversize packets 0 pause packets 0 unknown control opcode 0 symbol errors 0 discard packets by storm control Tx: 0 packets 0 unicast packets 0 multicast packets 0 broadcast packets 0 bytes 0 discard packets 0 error packets 0 hoq discard packets
Related Commands
Notes	If a high power transceiver (e.g. LR4) is inserted to a port that does not support it, the link does not go up, and the following warning message is displayed: “Warning: High power transceiver is not supported” when running the command “show interfaces ethernet” is run. For more information, please refer to “High Power Transceivers”. “Operational Fec” appears as N/A while port is DOWN, and as no-fec/fc-fec/rs-fec while port is UP As of version 3.9.1000, the "inf" attribute is optional. If nothing is selected, information for all ports will be displayed The speed with lane count information refers to the Spectrum-2 and Spectrum-3 systems only.

show interfaces ethernet counters tc

	show interfaces ethernet [<slot/port> \| <slot/port>-<slot/port>] counters tc <priority> Displays traffic class counters for the specified interface and priority.
Syntax Description	slot/port	Number of Ethernet interface in form of slot/port
Syntax Description	priority	Valid priority values: 0-7 or all
Default	N/A
Configuration Mode	Any command mode
History	3.6.3004
History	3.9.1000	Added ability to use a range of ports
Example	switch (config) # show interfaces ethernet 1/1-1/2 counters tc 3 Eth1/1: TC 3 0 packets 0 bytes 0 queue depth 0 unicast no buffer discard 0 WRED discard Eth1/2: TC 3 0 packets 0 bytes 0 queue depth 0 unicast no buffer discard 0 WRED discard
Related Commands
Notes	As of version 3.9.1000, the "slot/port" attribute is optional. If nothing is selected, information for all ports will be displayed

show interfaces ethernet counters pg

	show interfaces ethernet [<slot/port> \| <slot/port>-<slot/port>] counters pg <priority> Displays priority group counters for the specified interface and priority.
Syntax Description	slot/port	Number of Ethernet interface in form of slot/port
Syntax Description	priority	Valid priority values: 0-7 or all
Default	N/A
Configuration Mode	Any command mode
History	3.6.3004
History	3.9.1000	Added ability to use a range of ports
Example	switch (config) # show interfaces ethernet 1/1-1/2 counters pg 3 Eth1/1: PG 0: 0 packets 0 bytes 0 queue depth 0 no buffer discard 0 shared buffer discard Eth1/2: PG 0: 0 packets 0 bytes 0 queue depth 0 no buffer discard 0 shared buffer discard
Related Commands
Notes	As of version 3.9.1000, the "slot/port" attribute is optional. If nothing is selected, information for all ports will be displayed

show interfaces ethernet description

	show interfaces ethernet [<inf>] description Displays the admin status and protocol status for the specified interface.
Syntax Description	inf	Interface number: <slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000
	3.4.1100	Updated example
	3.8.2000	Updated example
	3.9.1000	Updated example
Example	switch (config) # show interfaces ethernet description --------------------------------------------------------------------------------------- Interface Admin Operational Switchport Speed Description state state mode --------------------------------------------------------------------------------------- Eth1/20 Enabled Up hybrid 10G - Eth1/21 Enabled Up hybrid 100Gx4 (auto) - Eth1/22 Enabled Up hybrid 100Gx4 (auto) - switch (config) # show interfaces ethernet 1/20 description --------------------------------------------------------------------------------------- Interface Admin Operational Switchport Speed Description state state mode --------------------------------------------------------------------------------------- Eth1/20 Enabled Up hybrid 50Gx2 -
Related Commands
Notes	The speed with lane count information refers to the Spectrum-2 and Spectrum-3 systems only.

show interfaces ethernet rates

	show interfaces ethernet rates [<transfer-rate-unit>] Displays the current transfer rate of the interface.
Syntax Description	transfer-rate-unit	bytes –displays interface transfer rates in B/s dynamically (while converting to K/M/G if needed) KB –displays interface transfer rate in Kb/s MB –displays interface transfer rate in Mb/s GB –displays interface transfer rate in Gb/s bits –displays interface transfer rates in b/s dynamically (while converting to K/M/G if needed) Kb –displays interface transfer rate in Kb/s Mb –displays interface transfer rate in Mb/s Gb –displays interface transfer rate in Gb/s If no parameter is entered, transfer rate is displayed in bits
Default	N/A
Configuration Mode	Any command mode
History	3.6.2002
History	3.7.0000	Added new rates to “transfer-rate-unit”
Example	switch (config) # show interfaces ethernet rates KB Port egress ingress avg rate (KB/s) pkts/sec avg rate (KB/s) pkts/sec --------- ---------------- -------- --------------- -------- Eth1/1 0 0 0.032 1 Eth1/2 0 0 0.032 1 Eth1/3 0 0 0 0 ...
Related Commands
Notes

show recirculation port

	show recirculation port Shows recirculation port status and information.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.9.0300
Example	switch (config) # show recirculation port
Related Commands	recirculation
Notes

show interfaces ethernet status

	show interfaces ethernet [<inf>] status Displays the status, speed and negotiation mode of the specified interface.
Syntax Description	inf	Interface number: <slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000
	3.4.1100	Updated example
	3.9.1000	Updated example
Example	switch (config) # show interfaces ethernet status Port Operational state Speed Negotiation ---- ----------------- ----- ----------- Eth1/58 Down 40 Gbps No-Negotiation Eth1/59 Up 100Gx4 (auto) Auto Eth1/60 Down (Suspend) 40 Gbps No-Negotiation
Related Commands
Notes	The speed with lane count information refers to the Spectrum-2 and Spectrum-3 systems only.

show interfaces ethernet transceiver

	show interfaces ethernet [<inf>] transceiver Displays transceiver information.
Syntax Description	inf	Interface number: <slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000
Example	switch (config) # show interfaces ethernet status Port Operational state Speed Negotiation ---- ----------------- ----- ----------- Eth1/58 Down 40 Gbps No-Negotiation Eth1/59 Up 40 Gbps No-Negotiation Eth1/60 Down (Suspend) 40 Gbps No-Negotiation
Related Commands	switch (config) # show interfaces ethernet 1/1 transceiver Port 1/1 state identifier : QSFP+ cable/module type : Optical cable/module ethernet speed and type: 40GBASE - SR4 vendor : Mellanox cable_length : 50 m part number : MC2210411-SR4 revision : A1 serial number : TT1151-00006
Notes	For a full list of the supported cables and transceivers, please refer to the LinkX™ Cables and Transceivers webpage If a high power transceiver (e.g. LR4) is used, it will be indicated in the field “cable/module type”

show interfaces ethernet transceiver brief

	show interfaces ethernet [<inf>] transceiver brief Display brief transceiver information.
Syntax Description	inf	Interface number: <slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.6.6102
Example	switch (config) # show interfaces ethernet 1/1 transceiver brief show interfaces ethernet transceiver brief ---------------------------------------------------------------------------------------- Interface Identifier Vendor PN SN Rev ---------------------------------------------------------------------------------------- Eth1/1 Eth1/2 QSFP+ Mellanox MCP1600-E00A MT1710VS06916 A3 Eth1/3 QSFP+ Mellanox MCP1600-E00A MT1710VS06929 A3 Eth1/4 QSFP+ Mellanox MCP1600-E00A MT1710VS06953 A3 Eth1/5 QSFP+ Mellanox MCP1600-E00A MT1710VS06923 A3
Related Commands
Notes	For a full list of the supported cables and transceivers, please refer to the LinkX™ Cables and Transceivers webpage If a high power transceiver (e.g. LR4) is used, it will be indicated in the field “cable/module type”

show interfaces ethernet transceiver counters

	show interfaces ethernet [<inf>] transceiver counters Displays PHY counters related to operational FEC mode and actual number of lanes in the current port.
Syntax Description	inf	Interface number: <slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.6.1002
History	3.10.3000	Updated command description, notes, and example
Example	switch (config) # show interfaces ethernet 1/1 transceiver counters Rx phy received bits 398503339622400 phy symbol errors 0 phy corrected bits 0 Time since last clear 0 Edpl/bip errors lane0 0 Edpl/bip errors lane1 0 Edpl/bip errors lane2 0 Edpl/bip errors lane3 0 raw_ber_magnitude 9 raw_ber_coef 1 effective_ber_magnitude 255 effective_ber_coef 15
Related Commands
Notes	The counter “phy received bits” provides information on the total amount of traffic received and can be used to estimate the ratio of error traffic The counter “phy symbol errors” provides information on the error traffic that was not corrected because the FEC algorithm could not do it or because FEC was not active on this interface The counter “phy corrected bits” provides the number of corrected bits by the active FEC mode (RS/FC) The counter "Time since last clear" provides the time passed since the last counters clear event in msec The counter "Edpl/bip errors lane" provides the NO FEC corrected counter value on appropriate lane The counter "FC corrected blocks lane" provides the FC FEC corrected counter value on appropriate lane The counter "RS corrected symbols lane" provides the RS FEC corrected counter value on appropriate lane The counter "raw_ber_magnitude" provides the BER magnitude value for total number of errors. Used for BER calculation - Raw_BER = raw_ber_coef 10^(-raw_ber_magnitude) The counter "raw_ber_coef" provides the BER coefficient value for total number of errors The counter "effective_ber_magnitude" provides the BER magnitude value for effective number of errors. Used for BER calculation - Effective_BER = effective_ber_coef * 10^(-effective_ber_magnitude) The counter "effective_ber_coef" provides the BER coefficient value for effective number of errors

show interfaces ethernet transceiver diagnostics

	show interfaces ethernet [<inf>] transceiver diagnostics Displays cable channel monitoring and diagnostics info for this interface. Tx and Rx power are reported in mW and dBm units.
Syntax Description	inf	Interface number: <slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.6.2002
	3.6.4006	Updated Example to report Tx and Rx power in mW and dBm units
	3.6.6000	Updated Example
Example	switch (config) # show interfaces ethernet 1/5 transceiver diagnostics Port 1/5 transceiver diagnostic data: Temperature (-127C to +127C): Temperature : 26 C Hi Temp Alarm Thresh : 80 C Low Temp Alarm Thresh: -10 C Temperature Alarm : None Voltage ( 0 to 6.5535 V): Voltage : 3.28980 V Hi Volt Alarm Thresh : 3.50000 V Low Volt Alarm Thresh: 3.10000 V Voltage Alarm : None Tx Bias Current ( 0 to 131 mA): Ch1 Tx Current : 6.60000 mA Ch2 Tx Current : 6.60000 mA Ch3 Tx Current : 6.60000 mA Ch4 Tx Current : 6.60000 mA Hi Tx Crnt Alarm Thresh : 8.50000 mA Low Tx Crnt Alarm Thresh: 5.49200 mA Ch1 Tx Current Alarm : None Ch2 Tx Current Alarm : None Ch3 Tx Current Alarm : None Ch4 Tx Current Alarm : None Tx Power ( 0 mW to 6.5535 mW / 8.1647 dBm): Ch1 Tx Power : 1.01420 mW / 0.06124 dBm Ch2 Tx Power : 0.96740 mW / -0.14394 dBm Ch3 Tx Power : 0.96730 mW / -0.14439 dBm Ch4 Tx Power : 0.96050 mW / -0.17503 dBm Hi Tx Power Alarm Thresh : 3.46730 mW / 5.39991 dBm Low Tx Power Alarm Thresh: 0.07240 mW / -11.40261 dBm Ch1 Tx Power Alarm : None Ch2 Tx Power Alarm : None Ch3 Tx Power Alarm : None Ch4 Tx Power Alarm : None Rx Power ( 0 mW to 6.5535 mW / 8.1647 dBm): Ch1 Rx Power : 0.99160 mW / -0.03663 dBm Ch2 Rx Power : 1.06080 mW / 0.25633 dBm Ch3 Rx Power : 1.09810 mW / 0.40642 dBm Ch4 Rx Power : 0.97500 mW / -0.10995 dBm Hi Rx Power Alarm Thresh : 3.46730 mW / 5.39991 dBm Low Rx Power Alarm Thresh: 0.04670 mW / -13.30683 dBm Ch1 Rx Power Alarm : None Ch2 Rx Power Alarm : None Ch3 Rx Power Alarm : None Ch4 Rx Power Alarm : None Vendor Date Code (dd-mm-yyyy): 07-11-2016
Related Commands
Notes	This example is for a QSFP transceiver

show interfaces ethernet transceiver raw

	show interfaces ethernet [<inf>] transceiver raw Displays cable info for this interface.
Syntax Description	inf	Interface number: <slot>/<port>
Default	N/A
Configuration Mode	Any command mode
History	3.6.1002
Example
switch (config) # show interfaces ethernet 1/7 transceiver raw Port 1/7 raw transceiver data: I2C Address 0x50, Page 0, 0:255: 0000 0d 02 06 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0080 0d 00 23 08 00 00 00 00 00 00 00 05 8d 00 00 00 ..#............. 0090 00 00 01 a0 4d 65 6c 6c 61 6e 6f 78 20 20 20 20 ....Mellanox 00a0 20 20 20 20 0f 00 02 c9 4d 43 32 32 30 37 31 33 ....MC220713 00b0 30 2d 30 30 41 20 20 20 41 33 02 03 05 00 46 66 0-00A A3....Ff 00c0 00 00 00 00 4d 54 31 32 32 37 56 53 30 30 36 34 ....MT1227VS0064 00d0 32 20 20 20 31 32 30 37 30 38 20 20 00 00 00 e4 2 120708 .... 00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00f0 00 00 00 00 00 00 00 00 00 00 02 00 00 30 00 00 I2C Address 0x50, Pages 1, 128:255: 0080 0d 02 06 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Related Commands
Notes

show interfaces status

	show interfaces status Displays the configuration and status for the interface.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.6.4006
	3.9.0300	Updated example—added MTU column
	3.9.1000	Updated example
Example
switch (config) # show interfaces status ------------------------------------------------------------------------------------------------ Port Operational state Admin Speed MTU Description ------------------------------------------------------------------------------------------------ mgmt0 Up Enabled 1000Mb/s (auto) 1500 - Eth1/1 Down Disabled Unknown 1500 - Eth1/2 Up Enabled 40G 1500 - Eth1/3 Up Enabled 40G 1500 - Eth1/4 Up Enabled 40G 1500 - Eth1/5 Up Enabled 40G 1500 - Eth1/6 Up Enabled 10G 1500 - Eth1/7 Up Enabled 10G 1500 - Eth1/8 Up Enabled 10G 1500 - Eth1/9 Up Enabled 10G 1500 - Eth1/10 Up Enabled 100Gx4 1500 - Eth1/11 Up Enabled 100Gx4 1500 - Eth1/12 Up Enabled 100Gx4 1500 - Eth1/13 Up Enabled 100Gx4 1500 - Eth1/14 Down Disabled Unknown 1500 - Eth1/15 Up Enabled 100Gx4 1500 - Eth1/16 Up Enabled 100Gx4 1500 - Eth1/17 Down Disabled Unknown 1500 - Eth1/18 Down Disabled Unknown 1500 - Eth1/19 Down Disabled Unknown 1500 - Eth1/20 Down Disabled Unknown 1500 - Eth1/21/1 Up Enabled 10G 1500 - Eth1/21/2 Up Enabled 10G 1500 - Eth1/21/3 Up Enabled 10G 1500 - Eth1/21/4 Up Enabled 10G 1500 - Eth1/22 Down Disabled Unknown 1500 - Eth1/23 Up Enabled 10G 1500 - Eth1/24 Up Enabled 10G 1500 - Eth1/25 Down Disabled Unknown 1500 - Eth1/26 Down Disabled Unknown 1500 - Eth1/27 Down Disabled Unknown 1500 - Eth1/28 Down Disabled Unknown 1500 - Eth1/29 Down Disabled Unknown 1500 - Eth1/30 Down Disabled Unknown 1500 - Eth1/31 Down Disabled Unknown 1500 - Eth1/32 Down Disabled Unknown 1500 -
Related Commands
Note	If a high power transceiver (e.g. LR4) is inserted to a port that does not support it, the link does not go up, and the following warning message is displayed: “Warning: High power transceiver is not supported” when running the command “show interfaces ethernet” is run. For more information, please refer to “High Power Transceivers”. The speed with lane count information refers to the Spectrum-2 and Spectrum-3 systems only.

disable interface ethernet traffic-class congestion-control

	disable interface ethernet <inf> traffic-class <tc> congestion-control interface ethernet <inf> disable traffic-class <tc> congestion-control Disables RED/ECN marking for traffic-class queue on ethernet port.
Syntax Description	inf	Interface number: <slot>/<port>
Syntax Description	tc	Traffic class. Range 0-7
Default	N/A
Configuration Mode	config
History	3.8.2000
Role	admin
Example	switch (config) # disable interface ethernet 1/1 traffic-class 5 congestion-control switch (config) # interface ethernet 1/1 disable traffic-class 5 congestion-control
Related Commands	show interfaces ethernet 1/1 congestion-control
Notes	The “no interface ethernet <inf> traffic-class <tc> congestion-control” command returns configuration on the port to its default value.

disable interface port-channel traffic-class congestion-control

	disable interface port-channel <inf> traffic-class <tc> congestion-control Disables RED/ECN marking for traffic-class queue on LAG port.
Syntax Description	inf	Interface number. Range: 1-4096
Syntax Description	tc	Traffic class. Range 0-7
Default	N/A
Configuration Mode	config
History	3.8.2000
Role	admin
Example	switch (config) # disable interface port-channel 15 traffic-class 5 congestion-control switch (config) # interface port-channel 15 disable traffic-class 5 congestion-control
Related Commands	show interfaces port-channel congestion-control
Notes	The “no interface port-channel <inf> traffic-class <tc> congestion-control” command returns configuration on the port to its default value.

disable interface mlag-port-channel traffic-class congestion-control

	disable interface mlag-port-channel <inf> traffic-class <tc> congestion-control interface mlag-port-channel <inf> disable traffic-class <tc> congestion-control Disables RED/ECN marking for traffic-class queue on MLAG port.
Syntax Description	inf	Interface number. Range: 1-1000
Syntax Description	tc	Traffic class. Range 0-7
Default	N/A
Configuration Mode	config
History	3.8.2000
Role	admin
Example	switch (config) # disable interface mlag-port-channel 1 traffic-class 5 congestion-control switch (config) # interface mlag-port-channel 1 disable traffic-class 5 congestion-control
Related Commands	show interfaces mlag-port-channel 1/1 congestion-control
Notes	The “no interface mlag-port-channel <inf> traffic-class <tc> congestion-control” command returns configuration on the port to a default value.

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