NVIDIA Docs Hub NVIDIA Networking Networking Software Switch Software NVIDIA MLNX-OS User Manual v3.11.3002 Management Interface Commands

v8.2.2200

	interface {mgmt0 \| mgmt1 \| lo \| vlan<id> \| ib0} Enters a management interface context.}
Syntax Description	mgmt0	Management port 0 (out of band).
	mgmt1	Management port 1 (out of band).
	lo	Loopback interface.
	vlan<id>	In-band management interface (e.g., vlan10).
	ib0	IPoIB in-band management.
Default	N/A
Configuration Mode	config
History	3.1.0000
Example	switch (config)# interface mgmt0 switch (config interface mgmt0)#
Related Commands	show interfaces <ifname>
Notes

ip address

	ip address <IP address> <netmask> no ip address Sets the IP address and netmask of this interface. The no form of the command clears the IP address and netmask of this interface.
Syntax Description	IP address	IPv4 address
Syntax Description	netmask	Subnet mask of IP address
Default	0.0.0.0/0
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# ip address 10.10.10.10 255.255.255.0
Related Commands	show interfaces <ifname>
Notes	If DHCP is enabled on the specified interface, then the DHCP IP assignment will hold until DHCP is disabled

ip default-gateway

	ip default-gateway <next-hop-IP-address> <interface-name> no default-gateway <next-hop-IP-address> <interface-name> Configures a default route. The no form of the command removes the current default route.
Syntax Description	next hop IP address	gateway IP address
Syntax Description	interface name	default gateway interface name
Default	N/A
Configuration Mode	config interface management
History	3.1.0000 3.8.1000: Updated Command & Syntax description
Example	switch (config interface mgmt0)# ip default-gateway mgmt1
Related Commands
Notes

alias

	alias <index> ip address < IP address> <netmask> no alias <index> Adds an additional IP address to the specified interface. The secondary address will appear in the output of “show interface” under the data of the primary interface along with the alias. The no form of the command removes the secondary address to the specified interface.
Syntax Description	index	A number that is to be aliased to (associated with) the secondary IP.
	IP address	Additional IP address.
	netmask	Subnet mask of the IP address.
Default	N/A
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# alias 2 ip address 9.9.9.9 255.255.255.255
Related Commands	show interfaces <ifname>
Notes	If DHCP is enabled on the specified interface, then the DHCP IP assignment will hold until DHCP is disabled More than one additional IP address can be added to the interface

mtu

	mtu <bytes> no mtu <bytes> Sets the Maximum Transmission Unit (MTU) of this interface. The no form of the command resets the MTU to its default.
Syntax Description	bytes	The entry range is 68-1500.
Default	1500
Configuration Mode	config interface management
History	3.6.3004
Example	switch (config interface mgmt0)# mtu 1500
Related Commands	show interfaces <ifname>
Notes

duplex

	duplex <duplex> no duplex Sets the interface duplex. The no form of the command resets the duplex setting for this interface to its default value.
Syntax Description	duplex	Sets the duplex mode of the interface. The following are the possible values: half—half duplex full—full duplex auto—auto duplex sensing (half or full)
Default	auto
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# duplex auto
Related Commands	show interfaces <ifname>
Notes	Setting the duplex to “auto” also sets the speed to “auto” Setting the duplex to one of the settings “half” or “full” also sets the speed to a manual setting which is determined by querying the interface to find out its current auto-detected state

speed

	speed <speed> no speed Sets the interface speed. The no form of the command resets the speed setting for this interface to its default value.
Syntax Description	speed	Sets the speed of the interface. The following are the possible values: 10—fixed to 10Mbps 100—fixed to 1000Mbps 1000—fixed to 1000Mbps auto—auto speed sensing (10/100/1000Mbps)
Default	auto
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# speed auto
Related Commands	show interfaces <ifname>
Notes	Setting the speed to “auto” also sets the duplex to “auto” Setting the speed to one of the manual settings (generally “10”, “100”, or “1000”) also sets the duplex to a manual setting which is determined by querying the interface to find out its current auto-detected state

dhcp

	dhcp [renew] no dhcp Enables DHCP on the specified interface. The no form of the command disables DHCP on the specified interface.
Syntax Description	renew	Forces a renewal of the IP address. A restart on the DHCP client for the specified interface will be issued.
Default	Could be enabled or disabled (per part number) manufactured with 3.2.0500
Configuration Mode	config interface management
History	3.1.0000 3.9.1900: Added note
Example	switch (config interface mgmt0)# dhcp
Related Commands	show interfaces <ifname> configured
Notes	When enabling DHCP, the IP address and netmask are received via DHCP hence, the static IP address configuration is ignored Enabling DHCP disables zeroconf and vice versa Setting a static IP address and netmask does not disable DHCP. DHCP is disabled using the “no” form of this command, or by enabling zeroconf. When static IP is configured, DHCP will not run.

dhcp hostname

	dhcp hostname no dhcp hostname Enables fetching the hostname from DHCP for this interface. The no form of the command disables fetching the hostname from DHCP for this interface.
Syntax Description	N/A
Default	Enabled
Configuration Mode	config interface management
History	3.5.1000
Example	switch (config interface mgmt0)# dhcp hostname
Related Commands	hostname <hostname> show interfaces <ifname> configured
Notes	If a hostname is configured manually by the user, that configuration would override the “dhcp hostname” configuration When a default hostname is not configured, the DHCP server assigns the new hostname for your machine (after upgrading to version 3.5.1000) These commands do not work on in-band interfaces

shutdown

	shutdown no shutdown Disables the specified interface. The no form of the command enables the specified interface.
Syntax Description	N/A
Default	no shutdown
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# no shutdown
Related Commands	show interfaces <ifname> configured
Notes

zeroconf

	zeroconf no zeroconf Enables zeroconf on the specified interface. It randomly chooses a unique link-local IPv4 address from the 169.254.0.0/16 block. This command is an alternative to DHCP. The no form of the command disables the use of zeroconf on the specified interface.
Syntax Description	N/A
Default	no zeroconf
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# zeroconf
Related Commands	show interfaces <ifname> configured
Notes	Enabling zeroconf disables DHCP and vice versa.

comment

	comment <comment> no comment Adds a comment for an interface. The no form of the command removes a comment for an interface.
Syntax Description	comment	A free-form string that has no semantics other than being displayed when the interface records are listed.
Default	no comment
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# comment my-interface
Related Commands
Notes

ipv6 enable

	ipv6 enable no ipv6 enable Enables all IPv6 addressing for this interface. The no form of the command disables all IPv6 addressing for this interface.
Syntax Description	N/A
Default	IPv6 addressing is disabled
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# ipv6 enable
Related Commands	ipv6 address show interface <ifname>
Notes	The interface identifier is a 64-bit long modified EUI-64, which is based on the MAC address of the interface If IPv6 is enabled on an interface, the system will automatically add a link-local address to the interface. Link-local addresses can only be used to communicate with other hosts on the same link, and packets with link-local addresses are never forwarded by a router. A link-local address, which may not be removed, is required for proper IPv6 operation. The link-local addresses start with “fe80::”, and are combined with the interface identifier to form the complete address.

ipv6 address

	ipv6 address {<IPv6 address/netmask> \| autoconfig [default \| privacy]} no ipv6 {<IPv6 address/netmask> \| autoconfig [default \| privacy]} Configures IPv6 address and netmask to this interface, static or autoconfig options are possible. The no form of the command removes the given IPv6 address and netmask or disables the autoconfig options.
Syntax Description	IPv6 address/netmask	Configures a static IPv6 address and netmask. Format example: 2001:db8:1234::5678/64.
	autoconfig	Enables IPv6 stateless address auto configuration (SLAAC) for this interface. An address will be automatically added to the interface based on an IPv6 prefix learned from router advertisements, combined with an interface identifier.
	autoconfig default	Enables default learning routes. The default route will be discovered automatically, if the autoconfig is enabled.
	autoconfig privacy	Uses privacy extensions for SLAAC to construct the autoconfig address, if the autoconfig is enabled.
Default	No IP address available, auto config is enabled
Configuration Mode	config interface management
History	3.1.0000
Example	switch (config interface mgmt0)# ipv6 fe80::202:c9ff:fe5e:a5d8/64
Related Commands	ipv6 enable show interface <ifname>
Notes	On a given interface, up to 16 addresses can be configured For Ethernet, the default interface identifier is a 64-bit long modified EUI-64, which is based on the MAC address of the interface

ipv6 dhcp primary-intf

	ipv6 dhcp primary-intf <if-name> no ipv6 dhcp primary-intf Sets the interface from which non-interface-specific (resolver) configuration is accepted via DHCPv6. The no form of the command resets non-interface-specific (resolver) configuration.
Syntax Description	if-name	Interface name: lo mgmt0 mgmt1
Default	N/A
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ipv6 dhcp primary-intf mgmt0
Related Commands	ipv6 enable ipv6 address show interface <ifname>
Notes

ipv6 dhcp stateless

	ipv6 dhcp stateless no ipv6 dhcp stateless Enables stateless DHCPv6 requests. The no form of the command disables stateless DHCPv6 requests.
Syntax Description	N/A
Default	N/A
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ipv6 dhcp stateless
Related Commands	ipv6 enable ipv6 address show interface <ifname>
Notes	This command only gets DNS configuration, not an IPv6 address The no form of the command requests all information, including an IPv6 address

ipv6 dhcp client enable

	ipv6 dhcp client enable no ipv6 dhcp client enable Enables DHCPv6 on this interface. The no form of the command disables DHCPv6 on this interface.
Syntax Description	N/A
Default	ipv6 dhcp client enable
Configuration Mode	config interface management
History	3.7.11xx 3.9.1900: Added note
Example	switch (config interface mgmt0)# ipv6 dhcp client enable
Related Commands	ipv6 dhcp client renew show ipv6 dhcp
Notes	When static IP is configured, DHCP will not run.

ipv6 dhcp client renew

	ipv6 dhcp client renew Renews DHCPv6 lease for this interface.
Syntax Description	N/A
Default	N/A
Configuration Mode	config interface management
History	3.7.11xx
Example	switch (config interface mgmt0)# ipv6 dhcp client renew
Related Commands	ipv6 dhcp client enable show ipv6 dhcp
Notes

show interfaces mgmt0

	show interface mgmt0 Displays information on the management interface configuration and status.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000 3.6.8008: Updated example 3.9.1900: Updated example—added new output option of "no (Static IP is configured)"
Example	switch (config)# show interfaces mgmt0 Interface mgmt0 status: Comment : Admin up : yes Link up : yes DHCP running : no (Static IP is configured) IP address : 10.12.67.33 Netmask : 255.255.255.128 IPv6 enabled : yes Autoconf enabled: no Autoconf route : yes Autoconf privacy: no DHCPv6 running : no (Static IP is configured) IPv6 addresses : 2 `IPv6 address: 1::1/64 fe80::7efe:90ff:fe65:dea8/64` `Speed : UNKNOWN Duplex : full Interface type : ethernet Interface source: bridge Bonding master : vrf_vrf-default MTU : 1500 HW address : 7C:FE:90:65:DE:A8` `Rx: 13840892 bytes 58605 packets 0 mcast packets 2 discards 0 errors 0 overruns 0 frame` `Tx: 3796 bytes 38 packets 0 discards 0 errors 0 overruns 0 carrier 0 collisions 1000 queue len`
Related Commands
Notes

show interfaces mgmt0 brief

	show interface mgmt0 brief Displays brief information on the management interface configuration and status.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000 3.6.8008: Updated example
Example	switch (config)# show interfaces mgmt0 brief Interface mgmt0 status: Comment : Admin up : yes Link up : yes DHCP running : yes IP address : 10.12.67.33 Netmask : 255.255.255.128 IPv6 enabled : yes Autoconf enabled: no Autoconf route : yes Autoconf privacy: no DHCPv6 running : yes (but no valid lease) IPv6 addresses : 1 IPv6 address: fe80::268a:7ff:fe53:3d8e/64 Speed : 1000Mb/s (auto) Duplex : full (auto) Interface type : ethernet Interface source: bridge MTU : 1500 HW address : 24:8a:07:53:3d:8e
Related Commands
Notes

show interfaces mgmt0 configured

	show interface mgmt0 configured Displays configuration information about the specified interface.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000 3.5.1000: Updated example with “DHCP Hostname” 3.6.8008: Updated example
Example	switch (config)# show interfaces mgmt0 configured Interface mgmt0 configuration: Comment : Enabled : yes DHCP : yes DHCP Hostname : yes Zeroconf : no IP address : Netmask : IPv6 enabled : yes Autoconf enabled: no Autoconf route : yes Autoconf privacy: no DHCPv6 enabled : yes IPv6 addresses : 0 Speed : auto Duplex : auto MTU : 1500
Related Commands
Notes

Hostname Resolution

hostname

	hostname <hostname> no hostname Sets a static system hostname. The no form of the command clears the system hostname.
Syntax Description	hostname	A free-form string
Default	Default hostname
Configuration Mode	config
History	3.1.0000 3.6.3004: Added support for the character “.”
Example	switch (config)# hostname my-switch-hostname
Related Commands	show hosts
Notes	Hostname may contain letters, numbers, periods (‘.’), and hyphens (‘-’), in any combination Hostname may be 1-63 characters long Hostname may not begin with a hyphen Hostname may not contain other characters, such as “%”, “_” etc. Hostname may not be set to one of the valid logging commands (i.e. debug-files, fields, files, format, level, local, monitor, receive, trap) Changing the hostname stamps a new HTTPS certificate

ip name-server

	ip name-server <IPv4/IPv6 address> no ip name-server <IPv4/IPv6 address> Sets the static name server. The no form of the command clears the name server.
Syntax Description	IPv4/IPv6 address	IPv4 or IPv6 address.
Default	No server name
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ip name-server 9.9.9.9
Related Commands	show hosts
Notes

ip domain-list

	ip domain-list <domain-name> no ip domain-list <domain-name> Sets the static domain name. The no form of the command clears the domain name.
Syntax Description	domain-name	The domain name in a string form. A domain name is an identification string that defines a realm of administrative autonomy, authority, or control in the Internet.
Default	No static domain name
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ip domain-list mydomain.com
Related Commands	show hosts
Notes

ip/ipv6 host

	{ip \| ipv6} host <hostname> <ip-address> no {ip \| ipv6} host <hostname> <ip-address> Configures the static hostname IPv4 or IPv6 address mappings. The no form of the command clears the static mapping.
Syntax Description	hostname	The hostname in a string form.
Syntax Description	IP Address	The IPv4 or IPv6 address.
Default	No static domain name
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ip host my-host 2.2.2.2 switch (config)# ipv6 host my-ipv6-host 2001::8f9
Related Commands	show hosts
Notes

ip/ipv6 map-hostname

	{ip \|ipv6} map-hostname no {ip \| ipv6} map-hostname Maps between the currently-configured hostname and the loopback address 127.0.0.1. The no form of the command clears the mapping.
Syntax Description	N/A
Default	IPv4 mapping is enabled by default IPv6 mapping is disabled by default
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ip map-hostname
Related Commands	show hosts
Notes	If no mapping is configured, a mapping between the hostname and the IPv4 loopback address 127.0.0.1 will be added The no form of the command maps the hostname to the IPv6 loopback address if there is no statically configured mapping from the hostname to an IPv6 address (disabled by default) Static host mappings are preferred over DNS results. As a result, with this option set, you will not be able to look up your hostname on your configured DNS server; but without it set, some problems may arise if your hostname cannot be looked up in DNS.

show hosts

	show hosts Displays hostname, DNS configuration, and static host mappings.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000 3.8.1000: Updated example
Example	switch (config)# show hosts Hostname: switch1 Name servers: 10.7.77.192 dynamic (DHCP on mgmt0) 10.7.77.135 dynamic (DHCP on mgmt0) 10.198.0.169 dynamic (DHCP on mgmt0) () 10.211.0.124 dynamic (DHCP on mgmt0) Domain names: mtl.labs.mlnx dynamic (DHCP on mgmt0) () Inactive due to system limits on name servers and domain names. Static IPv4 host mappings: 10.7.144.133 --> switch1 127.0.0.1 --> localhost Static IPv6 host mappings: ::1 --> localhost6 Automatically map hostname to loopback address : yes Automatically map hostname to IPv6 loopback address: no
Related Commands
Notes

Routing

IP route

	{ip \| ipv6} route {<network-prefix> <netmask> \| <network-prefix>/<masklen>} <next-hop> no ip route {<network-prefix> <netmask> \| <network-prefix>/<masklen>} <next-hop> Sets a static route for a given IP. The no form of the command deletes the static route.
Syntax Description	network-prefix	IPv4 or IPv6 network prefix
	netmask	IPv4 netmask formats are: /24 255.255.255.0 IPv6 netmask format is: /48 (as a part of the network prefix)
	nexthop-address	The IPv4 or IPv6 address of the next hop router for this route
	ifname	The interface name (e.g., mgmt0, mgmt1)

Default	N/A
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ip route 20.20.20.0 255.255.255.0 mgmt0
Related Commands	show ip route
Notes

ipv6 default-gateway

	ipv6 default-gateway {<ip-address> \| <ifname>} no ipv6 default-gateway Sets a static default gateway. The no form of the command deletes the default gateway.
Syntax Description	ip address	The default gateway IP address (IPv6)
Syntax Description	ifname	The interface name (e.g.,, mgmt0, mgmt1)
Default	N/A
Configuration Mode	config
History	3.1.0000 3.2.0500: Removed IPv4 configuration option
Example	switch (config)# ipv6 default-gateway ::1
Related Commands	show ip/ipv6 route show ipv6 default-gateway
Notes	The configured default gateway will not be used if DHCP is enabled In order to configure ipv4 default-gateway use ‘ip route’ command.

show ip/ipv6 route

	show {ip \| ipv6} route [static] Displays the routing table in the system.
Syntax Description	static	Filters the table with the static route entries
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000
Example
switch (config)# show ip route Destination Mask Gateway Interface Source default 0.0.0.0 172.30.0.1 mgmt0 DHCP 10.10.10.10 255.255.255.255 0.0.0.0 mgmt0 static 20.10.10.10 255.255.255.255 172.30.0.1 mgmt0 static 20.20.20.0 255.255.255.0 0.0.0.0 mgmt0 static 172.30.0.0 255.255.0.0 0.0.0.0 mgmt0 interface switch (config)# show ipv6 route Destination prefix Gateway Interface Source ----------------------------------------------------------------------- ::/0 :: mgmt0 static ::1/128 :: lo local 2222:2222:2222::/64 :: mgmt1 interface
Related Commands	ip route
Notes

show ipv6 default-gateway

	show ipv6 default-gateway [static] Displays the default gateway.
Syntax Description	static	Displays the static configuration of the default gateway
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000
Example	switch (config)# show ipv6 default-gateway Active default gateways: 172.30.0.1 (interface: mgmt0) switch (config)# show ipv6 default-gateway static Configured default gateway: 10.10.10.10
Related Commands	ipv6 default-gateway
Notes	The configured IPv4 default gateway will not be used if DHCP is enable

Network to Media Resolution (ARP & NDP)

IPv4 network use Address Resolution Protocol (ARP) to resolve IP address to MAC address, while IPv6 network uses Network Discovery Protocol (NDP) that performs basically the same as ARP.

ipv6 neighbor

	ipv6 neighbor <ipv6-address> <ifname> <mac-address> no ipv6 neighbor <ipv6-address> <ifname> <mac-address> Adds a static neighbor entry. The no form of the command deletes the static entry.
Syntax Description	ipv6-address	The IPv6 address
	ifname	The management interface (i.e. mgmt0, mgmt1)
	mac-address	The MAC address
Default	N/A
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ipv6 neighbor 2001:db8:701f::8f9 mgmt0 00:11:22:33:44:55
Related Commands	show ipv6 neighbor ipv6 route arp clear ipv6 neighbors
Notes	ARP is used only with IPv4. In IPv6 networks, Neighbor Discovery Protocol (NDP) is used similarly. Use The no form of the command to remove static entries. Dynamic entries can be cleared via the “clear ipv6 neighbors” command.

clear ipv6 neighbors

	clear ipv6 neighbors Clears the dynamic neighbors cache.
Syntax Description	N/A
Default	N/A
Configuration Mode	config
History	3.1.0000 3.6.4110: Updated command
Example	switch (config)# clear ipv6 neighbors
Related Commands	ipv6 neighbor show ipv6 neighbor arp
Notes	Clearing Neighbor Discovery Protocol (NDP) cache removes only the dynamic entries learned and not the static entries configured Use the no form of the command to remove static entries

show ipv6 neighbors

	show ipv6 neighbors [static] Displays the Neighbor Discovery Protocol (NDP) table.
Syntax Description	static	Filters only the table of the static entries.
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000
Example
switch (config)# show ipv6 neighbors IPv6 Address Age MAC Address State Interf ------------------------------------- ----- ----------------- ---------- ------ 2001::2 9428 aa:aa:aa:aa:aa:aa permanent mgmt0
Related Commands	ipv6 neighbor clear ipv6 neighbor show ipv6
Notes

DHCP

ip dhcp

	ip dhcp {default-gateway yield-to-static \| hostname <hostname>\| primary-intf <ifname> \| send-hostname} no ip dhcp {default-gateway yield-to-static\| hostname \| \| primary-intf \| send-hostname} Sets global DHCP configuration. The no form of the command deletes the DHCP configuration.
Syntax Description	yield-to-static	Does not allow you to install a default gateway from DHCP if there is already a statically configured one.
	hostname	Specifies the hostname to be sent during DHCP client negotiation if send-hostname is enabled.
	primary-intf <ifname>	Sets the interface from which a non-interface-specific configuration (resolver and routes) will be accepted via DHCP. Default: "primary-intf mgmt0"
	send-hostname	Enables the DHCP client to send a hostname during negotiation.
Default	Disabled
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ip dhcp default-gateway yield-to-static
Related Commands	show ip dhcp dhcp [renew]
Notes	DHCP is supported for IPv4 networks only

show ip dhcp

	show ip dhcp Displays the DHCP configuration and status.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.1.0000 3.6.5000: Updated example
Example	switch (config)# show ip dhcp ---------------------------------------- Interface DHCP DHCP Valid Enabled Running lease ---------------------------------------- dummy0 no no no lo no no no mgmt0 yes yes yes mgmt1 no no no mgmts0 no no no mgmts1 no no no vif1 no no no IPv4 dhcp default gateway yields to static configuration: no DHCP primary interface: Configured: mgmt0 Active: mgmt0 DHCP client options: Send Hostname: no Client Hostname: 1.1.1.1
Related Commands	ip dhcp dhcp [renew]
Notes

IP Diagnostic Tools

ping

	ping [-LRUbdfnqrvVaA] [-c count] [-i interval] [-w deadline] [-p pattern] [-s packetsize] [-t ttl] [-I interface or address] [-M mtu discovery hint] [-S sndbuf] [-T timestamp option ] [-Q tos ] [hop1 ...] destination Sends ICMP echo requests to a specified host.
Syntax Description	Linux Ping options	https://www.lifewire.com/uses-of-command-ping-2201076
Default	N/A
Configuration Mode	config
History	3.1.0000
Example	switch (config)# ping 172.30.2.2 PING 172.30.2.2 (172.30.2.2) 56(84) bytes of data. 64 bytes from 172.30.2.2: icmp_seq=1 ttl=64 time=0.703 ms 64 bytes from 172.30.2.2: icmp_seq=2 ttl=64 time=0.187 ms 64 bytes from 172.30.2.2: icmp_seq=3 ttl=64 time=0.166 ms 64 bytes from 172.30.2.2: icmp_seq=4 ttl=64 time=0.161 ms 64 bytes from 172.30.2.2: icmp_seq=5 ttl=64 time=0.153 ms 64 bytes from 172.30.2.2: icmp_seq=6 ttl=64 time=0.144 ms ... --- 172.30.2.2 ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5004ms rtt min/avg/max/mdev = 0.144/0.252/0.703/0.202 ms
Related Commands	traceroutes
Notes

traceroute

	traceroute [-46dFITUnrAV] [-f first_ttl] [-g gate,...] [-i device] [-m max_ttl] [-N squeries] [-p port] [-t tos] [-l flow_label] [-w waittime] [-q nqueries] [-s src_addr] [-z sendwait] host [packetlen] Traces the route packets take to a destination.
Syntax Description	-4	Uses IPv4
	-6	Uses IPv6
	-d	Enables socket level debugging
	-F	Sets DF (do not fragment bit) on
	-I	Uses ICMP ECHO for tracerouting
	-T	Uses TCP SYN for tracerouting
	-U	Uses UDP datagram (default) for tracerouting
	-n	Does not resolve IP addresses to their domain names
	-r	Bypasses the normal routing and send directly to a host on an attached network
	-A	Performs AS path lookups in routing registries and print results directly after the corresponding addresses
	-V	Prints version info and exit
	-f	Starts from the first_ttl hop (instead from 1)
	-g	Routes packets through the specified gateway (maximum 8 for IPv4 and 127 for IPv6)
	-i	Specifies a network interface with which to operate
	-m	Sets the max number of hops (max TTL to be reached). Default is 30.
	-N	Sets the number of probes to be tried simultaneously (default is 16)
	-p	Uses destination port. It is an initial value for the UDP destination port (incremented by each probe, default is 33434), for the ICMP seq number (incremented as well, default from 1), and the constant destination port for TCP tries (default is 80).
	-t	Sets the TOS (IPv4 type of service) or TC (IPv6 traffic class) value for outgoing packets
	-l	Uses specified flow_label for IPv6 packets
	-w	Sets the number of seconds to wait for response to a probe (default is 5.0). Non-integer (float point) values allowed too.
	-s	Uses source src_addr for outgoing packets.
	-q	Sets the number of probes per each hop. Default is 3.
	-z	Sets minimal time interval between probes (default is 0). If the value is more than 10, then it specifies a number in milliseconds, else it is a number of seconds (float point values allowed too).
Default	N/A
Configuration Mode	config
History	3.1.0000
Example
switch (config)# traceroute 192.168.10.70 traceroute to 192.168.10.70 (192.168.10.70), 30 hops max, 40 byte packets 1 172.30.0.1 (172.30.0.1) 3.632 ms 2.849 ms 3.544 ms 2 10.222.128.46 (10.222.128.46) 3.176 ms 3.289 ms 3.656 ms 3 10.158.128.30 (10.158.128.30) 15.331 ms 15.819 ms 16.388 ms 4 10.158.128.65 (10.158.128.65) 20.468 ms 7.893 ms 12.27 ms 5 10.7.34.115 (10.7.34.115) 16.405 ms 11.985 ms 12.264 ms6 192.168.10.70 (192.168.10.70) 16.377 ms 16.091 ms 20.475 ms
Related Commands	ping
Notes

tcpdump

	tcpdump [-aAdDeflLnNOpqRStuUvxX] [-c count] [-C file_size] [-E algo:secret] [-F file] [-i interface] [-M secret] [-r file] [-s snaplen] [-T type] [-w file] [-W filecount] [-y datalinktype] [-Z user] [-D list possible interfaces] [expression] Invokes standard binary, passing command line parameters straight through. Runs in foreground, printing packets as they arrive, until the user hits Ctrl+C.
Syntax Description	N/A
Default	N/A
Configuration Mode	config
History	3.1.0000
Example	switch (config)# tcpdump ...... 09:37:38.678812 IP 192.168.10.7.ssh > 192.168.10.1.54155: P 1494624:1494800(176) ack 625 win 90 <nop,nop,timestamp 5842763 858672398> 09:37:38.678860 IP 192.168.10.7.ssh > 192.168.10.1.54155: P 1494800:1495104(304) ack 625 win 90 <nop,nop,timestamp 5842763 858672398> ... 9141 packets captured 9142 packets received by filter 0 packets dropped by kernel
Related Commands
Notes

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