Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide ...

Note

The default behavior varies based on the type of switch (Cisco Nexus 9300, Cisco Nexus 9500, or Cisco Nexus 3164).

Note

Cisco Nexus 9300 Series switches (except Cisco Nexus 9332 switch) have a Layer 2 default mode.

Note

The feature interface-vlan configuration is not available on the Nexus 9800 switches.

Note

You cannot delete the VLAN interface for VLAN 1.

Note

You must assign an interface to a VRF before you configure the IP address for that interface.

Note

You cannot configure static MAC address on tunnel interfaces.

Note

If you are familiar with the Cisco IOS CLI, be aware that the Cisco NX-OS commands for this feature might differ from the Cisco IOS commands that you would use.

Admin state

Shut

Step 1

configure terminal

Example:

Enters global configuration mode.

Step 2

interface ethernet slot/port

Example:

Enters interface configuration mode.

Step 3

no switchport

Example:

Configures the interface as a Layer 3 interface.

Step 4

[ip address ip-address/length | ipv6 address ipv6-address/length]

Example:

Example:

• Configures an IP address for this interface. See the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide for more information about IP addresses.

• Configures an IPv6 address for this interface. See the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide for more information about IPv6 addresses.

Step 5

show interfaces

Example:

(Optional) Displays the Layer 3 interface statistics.

Step 6

no shutdown

Example:

(Optional) Clears the errors on the interfaces where policies correspond with hardware policies. This command allows policy programming to continue and the port to come up. If policies do not correspond, the errors are placed in an error-disabled policy state.

Step 7

copy running-config startup-config

Example:

(Optional) Saves the configuration change.

medium {broadcast | p2p}

Example:

Configures the interface medium as either point to point or broadcast.

Note

The default setting is broadcast , and this setting does not appear in any of the show commands. However, if you do change the setting to p2p , you will see this setting when you enter the show running config command.

switchport

Example:

Configures the interface as a Layer 2 interface and deletes any configuration specific to Layer 3 on this interface.

Step 1

configure terminal

Example:

Enters global configuration mode.

Step 2

interface ethernet slot/port.number

Example:

Creates a subinterface and enters subinterface configuration mode. The number range is from 1 to 4094.

Step 3

[ip address ip-address/length | ipv6 address ipv6-address/length]

Example:

Example:

• Configures an IP address for this subinterface. See the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide for more information on IP addresses.

• Configures an IPv6 address for this subinterface. See the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide for more information on IPv6 addresses.

Step 4

encapsulation dot1Q vlan-id

Example:

Configures IEEE 802.1Q VLAN encapsulation on the subinterface. The range is from 2 to 4093.

Step 5

show interfaces

Example:

(Optional) Displays the Layer 3 interface statistics.

Step 6

copy running-config startup-config

Example:

(Optional) Saves the configuration change.

Step 1

configure terminal

Example:

Enters configuration mode.

Step 2

feature interface-vlan

Example:

Enables VLAN interface mode.

Step 3

interface vlan number

Example:

Creates a VLAN interface. The number range is from 1 to 4094.

Step 4

[ip address ip-address/length | ipv6 address ipv6-address/length]

Example:

Example:

• Configures an IP address for this VLAN interface. See the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide for more information on IP addresses.

• Configures an IPv6 address for this VLAN interface. See the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide for more information on IPv6 addresses.

Step 5

show interface vlan number

Example:

(Optional) Displays the Layer 3 interface statistics.

Step 6

no shutdown

Example:

(Optional) Clears the errors on the interfaces where policies correspond with hardware policies. This command allows policy programming to continue and the port to come up. If policies do not correspond, the errors are placed in an error-disabled policy state.

Step 7

copy running-config startup-config

Example:

(Optional) Saves the configuration change.

Note

You cannot configure static MAC addresses on tunnel interfaces.

Note

This configuration is limited to 16 VLAN interfaces. Applying the configuration to additional VLAN interfaces results in a down state for the interface with a Hardware prog failed. status.

Step 1

config t

Example:

Enters configuration mode.

Step 2

interface [ethernet slot/port | ethernet slot/port.number | port-channel number | vlan vlan-id]

Example:

Specifies the Layer 3 interface and enters the interface configuration mode.

Step 3

mac-address mac-address

Example:

Specified a static MAC address to add to the Layer 3 interface.

Step 4

exit

Example:

Exits the interface mode.

Step 5

(Optional) show interface [ethernet slot/port | ethernet slot/port.number | port-channel number | vlan vlan-id]

Example:

Displays information about the Layer 3 interface.

Step 6

(Optional) copy running-config startup-config

Example:

Copies the running configuration to the startup configuration.

Step 1

configure terminal

Example:

Enters configuration mode.

Step 2

interface loopback instance

Example:

Creates a loopback interface. The range is from 0 to 1023.

Step 3

[ip address ip-address/length | ipv6 address ipv6-address/length]

Example:

Example:

• Configures an IP address for this interface. See the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide for more information about IP addresses.

• Configures an IPv6 address for this interface. See the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide for more information about IPv6 addresses.

Step 4

show interface loopback instance

Example:

(Optional) Displays the loopback interface statistics.

Step 5

copy running-config startup-config

Example:

(Optional) Saves the configuration change.

Note

Steps 2 through 6 are needed if you want to configure a PBR policy on the unnumbered Primary/Secondary VLAN interfaces. This is not mandatory for IP unnumbered on the SVI feature.

Step 1

configure terminal

Example:

Enter global configuration mode.

Step 2

ip access-list list-name

Example:

Configure access list.

Step 3

permit tcp host ipaddr host ipaddr eq port-number

Example:

Specify the packets to forward on a specific port.

Step 4

exit

Example:

Exit configuration mode.

Step 5

route-map route-map-name

Example:

Create a route-map or enter route-map command mode.

Step 6

match ip address access-list-name

Example:

Match values from the routing table.

Step 7

set ip next-hop addr1

Example:

Set IP address of the next hop.

Step 8

exit

Example:

Exit command mode.

Step 9

interface vlan vlan-id

Example:

Creates a VLAN interface and enters interface configuration mode. The range is from 1 and 4094.This is the primary VLAN.

Step 10

ip address ip-addr

Example:

Configures an IP address for the interface.

Step 11

no ip redirects

Example:

Needs to be configured on all unnumbered primary and secondary VLAN interfaces.

Step 12

(Optional) ip policy route-map pbr-sample

Example:

Enter this command if you want to apply a PBR policy on the unnumbered Primary/Secondary VLAN interface.

Step 13

exit

Example:

Exit command mode.

Step 14

hsrp version 2

Example:

Set the HSRP version.

Step 15

hsrpgroup-num

Example:

Set the HSRP group number.

Step 16

name name-val

Example:

Configure the redundancy name string.

Step 17

ip ip-addr

Example:

Configures an IP address.

Step 18

no shutdown

Example:

Negates shutdown.

Step 1

configure terminal

Example:

Enter configuration mode.

Step 2

interface vlan vlan-list

Example:

Creates a VLAN interface and enters interface configuration mode. The range is from 1 to 4094. This is the secondary VLAN.

Step 3

ip unnumbered vlan primary-vlan-id

Example:

Enables IP processing on an interface without assigning an explicit IP address to an interface.

Step 4

(Optional) ip policy route-map pbr-sample

Example:

Enter this command if you want to apply a PBR policy on the unnumbered Primary/Secondary VLAN interface.

Step 5

no ip redirects

Example:

Needs to be configured on all unnumbered primary and secondary VLAN interfaces.

Step 6

hsrp version 2

Example:

Set the HSRP version.

Step 7

hsrp group-num

Example:

Set the HSRP group number.

Step 8

follow name

Example:

Configure the group to be followed.

Step 9

ip ip-addr

Example:

Enters HRSP IPv4 and sets the virtual IP address.

Step 10

no shutdown

Example:

Negate shutdown.

Step 1

hardware profile tcam region {arpacl | e-racl} | ifacl | nat | qos} |qoslbl | racl} | vacl | svi } tcam_size

Changes the ACL TCAM region size.

• arpacl—Configures the size of the Address Resolution Protocol (ARP) ACL (ARPACL) TCAM region.

• e-racl—Configures the size of the egress router ACL (ERACL) TCAM region.

• e-vacl—Configures the size of the egress VLAN ACL (EVACL) TCAM region.

• ifacl—Configures the size of the interface ACL (ifacl) TCAM region. The maximum number of entries is 1500.

• nat—Configures the size of the NAT TCAM region.

• qos—Configures the size of the quality of service (QoS) TCAM region.

• qoslbl—Configures the size of the QoS Label (qoslbl) TCAM region.

• racl—Configures the size of the router ACL (RACL) TCAM region.

• vacl—Configures the size of the VLAN ACL (VACL) TCAM region.

• svi—Configures the size of the SVI TCAM region. The default size of SVI TCAM size is 0.

• tcam_size—TCAM size. The range is from 0 to 2,14,74, 83, 647 entries.

Step 2

copy running-config startup-config

Example:

Saves the change persistently through reboots and restarts by copying the running configuration to the startup configuration.

Step 3

switch(config)# show hardware profile tcam region

Example:

Displays the TCAM sizes that will be applicable on the next reload of the switch.

Step 4

switch(config)# reload

Example:

Copies the running configuration to the startup configuration.

Step 1

configure terminal

Example:

Enters configuration mode.

Step 2

interface interface-type number

Example:

Enters interface configuration mode.

Step 3

vrf member vrf-name

Example:

Adds this interface to a VRF.

Step 4

ip address ip-prefix/length

Example:

Configures an IP address for this interface. You must do this step after you assign this interface to a VRF.

Step 5

show vrf [vrf-name] interface interface-type number

Example:

(Optional) Displays VRF information.

Step 6

copy running-config startup-config

Example:

(Optional) Saves the configuration change.

Step 1

switch# configure terminal

Enters global configuration mode.

Step 2

switch(config)# interface ethernet type slot/port | mgmt mgmt-interface-number | vlan vlan id

Creates a physical Ethernet interface, a management interface, or a VLAN interface.

The range of vlan id is from 1 to 4094.

Step 3

switch(config-if)# [no] ipv6 address use-link-local-only

Prepares for request to the DHCP server.

Step 4

switch(config-if)# [no] [ip | ipv6] address dhcp

Requests the DHCP server for an IPv4 or IPv6 address.

The no form of this command removes any address that was acquired.

Step 5

(Optional) switch(config)# copy running-config startup-config

Saves the change persistently through reboots and restarts by copying the running configuration to the startup configuration.

Note

• Enabling this feature disables VXLAN, MPLS, Tunnel, Multicast, and ERSPAN counters. Reload the switch for the changes to take effect.

• For a vPC setup, the peer-gateway feature must be enabled under the vpc domain on both vPC peers. Otherwise, SVI counters may be inconsistent.

Step 1

configure terminal

Example:

Enters global configuration mode.

Step 2

[no] hardware profile svi-and-si flex-stats-enable

Example:

Configures the ingress/egress unicast counters on SVI and subinterface.

Step 3

copy running-config startup-config

Example:

Saves this configuration.

Step 4

reload

Example:

Reload the switch.

Step 1

configure terminal

Example:

Enters global configuration mode.

Step 2

[no] hardware profile sub-interface flex-stats

Example:

Enables subinterface flex stats for multicast and broadcast counters.

Step 3

copy running-config startup-config

Example:

Saves this configuration.

Step 4

reload

Example:

Reload the switch.

show interface ethernet slot/port

Displays the Layer 3 interface configuration, status, and counters (including the 5-minute exponentially decayed moving average of inbound and outbound packet and byte rates).

show interface ethernet slot/port brief

Displays the Layer 3 interface operational status.

show interface ethernet slot/port capabilities

Displays the Layer 3 interface capabilities, including port type, speed, and duplex.

show interface ethernet slot/port description

Displays the Layer 3 interface description.

show interface ethernet slot/port status

Displays the Layer 3 interface administrative status, port mode, speed, and duplex.

show interface ethernet slot/port.number

Displays the subinterface configuration, status, and counters (including the f-minute exponentially decayed moving average of inbound and outbound packet and byte rates).

show interface port-channel channel-id.number

Displays the port-channel subinterface configuration, status, and counters (including the 5-minute exponentially decayed moving average of inbound and outbound packet and byte rates).

show interface loopback number

Displays the loopback interface configuration, status, and counters.

show interface loopback number brief

Displays the loopback interface operational status.

show interface loopback number description

Displays the loopback interface description.

show interface loopback number status

Displays the loopback interface administrative status and protocol status.

show interface vlan number

Displays the VLAN interface configuration, status, and counters.

show interface vlan number brief

Displays the VLAN interface operational status.

show interface vlan number description

Displays the VLAN interface description.

show interface vlan number status

Displays the VLAN interface administrative status and protocol status.

load- interval {interval seconds {1 | 2 | 3}}

Cisco Nexus 9000 Series devices set three different sampling intervals to bit-rate and packet-rate statistics.

The range for VLAN network interface is 60 to 300 seconds, and the range for Layer interfaces is 30 to 300 seconds.

show interface ethernet slot/port counters

Displays the Layer 3 interface statistics (unicast, multicast, and broadcast).

show interface ethernet slot/port counters brief

Displays the Layer 3 interface input and output counters.

show interface ethernet errors slot/port detailed [all]

Displays the Layer 3 interface statistics. You can optionally include all 32-bit and 64-bit packet and byte counters (including errors).

show interface ethernet errors slot/port counters errors

Displays the Layer 3 interface input and output errors.

show interface ethernet errors slot/port counters snmp

Displays the Layer 3 interface counters reported by SNMP MIBs.

show interface ethernet slot/port.number counters

Displays the subinterface statistics (unicast, multicast, and broadcast).

show interface port-channel channel-id.number counters

Displays the port-channel subinterface statistics (unicast, multicast, and broadcast).

show interface loopback number counters

Displays the loopback interface input and output counters (unicast, multicast, and broadcast).

show interface loopback number detailed [all]

Displays the loopback interface statistics. You can optionally include all 32-bit and 64-bit packet and byte counters (including errors).

show interface loopback number counters errors

Displays the loopback interface input and output errors.

show interface vlan number counters

Displays the VLAN interface input and output counters (unicast, multicast, and broadcast).

show interface vlan number counters detailed [all]

Displays the VLAN interface statistics. You can optionally include all Layer 3 packet and byte counters (unicast and multicast).

show interface vlan number counters snmp

Displays the VLAN interface counters reported by SNMP MIBs.

IP

Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide

VLANs

Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide