Virtual Machine Requirements, Router Interfaces

Chapter 1 Cisco CSR 1000V Series Cloud Services Router Overview

Virtual Machine Requirements

Note A serial port can be used to manage a Cisco CSR 1000V VM only if the underlying hypervisor supports associating a serial port with a VM. For example, the Citrix XenServer environment does not support serial port association. See your hypervisor documentation for details.

•Use remote SSH/Telnet to access the Cisco IOS XE CLI commands.

The Cisco CSR 1000V also supports management and configuration using the following products:

•Cisco CSR 1000V REST API

•Cisco Prime Network Services Controller

For more information, see the “Management Support” section on page 1-20.

Router Interfaces

The Cisco CSR 1000V router interfaces perform the same functionality as those on hardware-based Cisco routers. The Cisco CSR 1000V interfaces function as follows:

•Interfaces are logically named as the Gigabit Ethernet (GE) interfaces.

•The available interface numbering depends on the Cisco CSR 1000V version. (Cisco IOS XE Release 3.11S and later) The interface numbering is as follows:

–Interface port numbering is from 1 and up to the number of interfaces supported.

–GigabitEthernet interface 0 is no longer supported beginning with this release.

–You can designate any interface as the management interface. You can change the management interface when deploying the OVA template on first-time installation.

(Cisco IOS XE Release 3.10S and earlier) The interface numbering is as follows:

–Interface port numbering is from 0 and up to the number of interfaces supported.

–Gigabit Ethernet interface 0 is reserved for the management interface used for obtaining the licenses and upgrading software.

•At first boot, the Cisco CSR 1000V router interfaces are mapped to the vNIC interfaces on the VM based on the vNIC enumeration to the Cisco CSR 1000V; on subsequent boot, the Cisco CSR 1000V router interfaces are mapped to the vNIC MAC address

Caution If upgrading to Cisco IOS XE Release 3.11S from an earlier release, Cisco recommends you update your configuration to remove the GigabitEthernet 0 management interface before upgrading. Because the GigabitEthernet 0 interface is no longer supported beginning with Cisco IOS XE Release 3.11S, you will receive system errors if the upgraded configuration includes this interface.

For more information, see the “Mapping Cisco CSR 1000V Network Interfaces to VM Network Interfaces” section on page 10-1.