V Commands
This chapter describes the Cisco Nexus 1000V commands that begin with V.
vem
To configure a Virtual Ethernet Module (VEM), use the vem command. To remove a VEM configuration, use the no form of this command.
vem module-number [- module-number ]
no vem module-number [- module-number ]
Syntax Description
Specifies a module number. The range of valid values is 3 to 66. |
Defaults
Command Modes
Command History
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Usage Guidelines
Specify a range of VEMs by using a dash. For example, 3-9 or 20-30.
Examples
This example shows how to create a VEM and enter the VEM slot configuration mode:
This example shows how to remove a VEM:
Related Commands
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version 9
To designate NetFlow export version 9 in the NetFlow exporter, use the version 9 command. To remove version 9, use the no form of this command.
Syntax Description
Defaults
Command Modes
NetFlow flow exporter configuration (config-flow-exporter)
Command History
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Examples
This example shows how to configure version 9 for a Netflow flow exporter:
n1000v# config t
This example shows how to remove version 9 from the Netflow flow exporter:
n1000v# config t
Related Commands
virtual-service-domain
To classify and separate traffic for network services, use the virtual-service-domain command. To remove a virtual service domain, use the no form of this command.
virtual-service-domain vsd-name
Syntax Description
Defaults
Command Modes
Port profile configuration (config-port-prof)
Command History
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Examples
This example shows how to configure a port profile for a VSD:
n1000v# config t
n1000v(config)# port-profile vsd1_member
n1000v(config-port-prof)# vmware port-group
n1000v(config-port-prof)# switchport access vlan 315
n1000v(config-port-prof)# virtual-service-domain vsd1
n1000v(config-port-prof)# no shutdown
n1000v(config-port-prof)# state enabledThis example shows how to remove the virtual service domain configuration:
n1000v# config t
n1000v(config)# port-profile vsd1_member
n1000v(config-port-prof)# no virtual-service-domain vsd1
Related Commands
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Displays a list of the VSDs currently configured in the VSM, including VSD names and port profiles. |
vlan
To create a VLAN and enter the VLAN configuration mode, use the vlan command. To remove a VLAN, use the no form of this command.
vlan { id | dot1Q tag native }
no vlan { id | dot1Q tag native }
Syntax Description
VLAN identification number. The range of valid values is 1 to 4094. |
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Defaults
Command Modes
Command History
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Usage Guidelines
Specify a VLAN range by using a dash. For example, 1-9 or 20-30.
Examples
This example shows how to create a VLAN and enter the VLAN configuration mode:
This example shows how to remove a VLAN:
Related Commands
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vlan policy deny
To enter the VLAN configuration mode and deny all VLAN access for the role, use the vlan policy deny command.
To remove the policy restrictions, use the no form of this command.
Syntax Description
Defaults
Command Modes
Role configuration (config-role)
Command History
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Usage Guidelines
After executing this command, access to any VLAN must be explicitly defined for this role by using the permit vlan command.
Examples
This example shows how to enter the VLAN configuration mode and deny all VLAN access for the role:
This example shows how to remove policy restrictions:
Related Commands
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Specifies the VLAN that users assigned to this role can access. |
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vmware dvs datacenter-name
To create a VMware virtual switch, use the vmware dvs datacenter-name command. To remove the virtual switch, use the no form of this command.
vmware dvs datacenter-name [folder/] name
Syntax Description
Defaults
Command Modes
SVS connection configuration (config-svs-conn)
Command History
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Usage Guidelines
To create a virtual switch, you must be in the SVS connection configuration mode. Use the svs connection command to create a connection and enter that mode. The number of SVS connections that can be created is limited to one.
After the VSM creates a DVS in the vCenter, if the ESX administrator changes the DVS folder name in the vCenter, the VSM administrator must manually update the DVS name in the VSM too using the vmware dvs datacenter-name command. This action is required because the DVS name is not automatically updated in the VSM, and if the names do not match, the connection between the VSM and DVS is broken.
Examples
This example shows how to create a VMware virtual switch:
n1000v# configure terminal
This example shows how to remove a VMware virtual switch:
n1000v# configure terminal
Related Commands
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vmware port-group
To create a VMware port group, use the vmware port-group command. To remove the VMware port group, use the no form of this command.
Syntax Description
Defaults
Command Modes
Port profile configuration (config-port-prof)
Command History
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Usage Guidelines
To create the VMware port group, you must be in port profile configuration mode.
Examples
This example shows how to create a VMware port group:
n1000v# configure terminal
This example shows how to remove the VMware port group:
n1000v# configure terminal
Related Commands
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Displays configuration information about a particular port-profile. |
vmware vc extension-key
To create an extension key, use the vmware vc extension-key command.
Syntax Description
Defaults
Command Modes
Command History
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Usage Guidelines
An extension key is used to connect to an instance of Virtual Center.
Examples
This example shows how to create an extension key:
Related Commands
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vmware vem upgrade complete
To clear the upgrade status, use the vmware vem upgrade complete command.
Syntax Description
Defaults
Command Modes
network-admin
network-operator
Command History
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Usage Guidelines
Once you have cleared the upgrade status, you cannot repeat this procedure.
Examples
This example shows how to clear the upgrade status:
Related Commands
vmware vem upgrade notify
To notify the vCenter Server that the software on the Virtual Supervisor Module (VSM) has been upgraded, and that a Virtual Ethernet Module (VEM) upgrade is available, use the vmware vem upgrade notify command.
Syntax Description
Defaults
Command Modes
network-admin
network-operator
Command History
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Examples
This example shows how to notify the vCenter Server that the software on the Virtual Supervisor Module (VSM) has been upgraded, and that a VEM upgrade is available:
Related Commands
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vmware vem upgrade proceed
To begin the upgrade of the virtual machine (VM), use the vmware vem upgrade proceed command.
Syntax Description
Defaults
Command Modes
network-admin
network-operator
Command History
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Examples
This example shows how to begin the upgrade of the VM:
Related Commands
vxlan udp port
To configure a VXLAN user datagram protocol (UDP) port for VXLAN encapsulation, use the vxlan udp port command. To remove a VXLAN UDP port, use the no form of this command.
no vlan udp port [port_number]
Syntax Description
Defaults
The default port number is either 4789 or 8472, depending on the installation. See the Usage Guidelines for this command.
Command Modes
Command History
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Usage Guidelines
You must permit this port through any intermediate firewall.
In Cisco Nexus 1000V for VMware Release 4.2(1)SV2(2.1) and earlier, the default UDP port number was 8472. Beginning with Release 5.2(1)SV3(1.1), the default UDP port number has changed to the IANA-approved UDP port number 4789. This change affects the Cisco Nexus 1000V for VMware software installation, upgrade, and VXLAN configuration in the following ways:
- When you upgrade to Release 5.2(1)SV3(1.1) from an earlier release that has VXLAN configured, the switch retains the UDP port number of 8472. You are not required to change the UDP number to 4789; however if you decide to change it, make sure that the VEMs are upgraded to Release 5.2(1)SV3(1.1) as well. Otherwise the vxlan udp port command is not available and you cannot change the UDP number.
- When you upgrade to Release 5.2(1)SV3(1.1) from an earlier release that does not have VXLAN configured, and then you configure VXLAN, the switch is configured with the default UDP port number 4789.
- When you perform a fresh Cisco Nexus 1000V for VMware installation of Release 5.2(1)SV3(1.1) and you configure VXLAN, the switch is configured with the default UDP port number 4789.
- You can change the UDP port number at any time using the vxlan udp port command. However, when upgrading to Release 5.2(1)SV3(1.1) from an earlier release, ensure that the VSM and VEMs are at the same release before using the vxlan udp port command. Otherwise the vxlan udp port command is not available and you cannot change the UDP port number.
Examples
This example shows how to configure a VXLAN UDP destination port:
This example shows how to remove a VXLAN UDP destination port:
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