Table of Contents

n1kv-kvm_Verified_Scalability_521sk311.fm

Verified Scalability Guide for Cisco Nexus 1000V for KVM Release 5.2(1)SK3(1.1)

July 31, 2014

This document describes the verified configuration limits for Cisco Nexus 1000V for KVM software. The following is the change history for this document.

Date

Description

July 31, 2014

Created Verified Scalability Guide for Release 5.2(1)SK3(1.1).

Contents

This document includes the following sections:

- Introduction

- Configuration Limits for Cisco Nexus 1000V for KVM

- Related Documentation

- Obtaining Documentation and Submitting a Service Request

Introduction

Cisco Nexus 1000V for KVM is a distributed virtual switch that works with the Linux Kernel-based virtual machine (KVM) open source hypervisor. In addition, Cisco Nexus 1000V for KVM uses OpenStack as its cloud operating system that controls large pools of compute, storage, and networking resources throughout a datacenter.

The networking function of OpenStack is controlled and managed by a process called Neutron on the network controller. Neutron has been extended in a such a way that the Cisco Nexus 1000V for KVM can now provide the networking capabilities to the compute nodes and the virtual machines (VMs). As Neutron creates and configures its networks for its environment, this configuration is passed to the Cisco Nexus 1000V for KVM switch.

Using OpenStack, you create VM networks and subnets on the Cisco Nexus 1000V for KVM, by defining components such as the following:

- Tenants

- Network segments (subnets), such as VLANs, VLAN trunks, and VXLANs

- IP address pools

Using the Cisco Nexus 1000V for KVM VSM, you create policy profiles (called port profiles on the VSM), which define port classification information, such as security settings (ACLs and so on).

When a VM is deployed, a port profile is dynamically created on the Cisco Nexus 1000V for KVM for each unique combination of port classification, VM network, and VM subnet. All other VMs deployed with the same policy to this network reuse this dynamic port profile.

Note You must consistently use OpenStack for all VM network and subnet configuration. If you use both OpenStack and the VSM to configure VM networks and subnets, the OpenStack and the VSM configurations can become out-of-sync and result in faulty or inoperable network deployments. For information about OpenStack, see the Cisco Nexus 1000V for KVM Virtual Network Configuration Guide.

Configuration Limits for Cisco Nexus 1000V for KVM

Table 1 lists the supported configuration limits for the Cisco Nexus 1000V for KVM components.

Table 1 Supported Configuration Limits

Cisco Nexus 1000V for KVM Components

Supported Configuration Limits

Hosts

128

Virtual machines

4,000

vEthernet interfaces

990 per host

vEthernet interfaces

8,000 per DVS

990 per host

Port profiles

6,000

Network profiles

2,000

Policy profiles

512

Active VLANs

2,000

Active VXLANs

2,000

MAC addresses

4,096 per VLAN per host

Physical trunks

128

Physical NICs

6 per host

vEthernet trunks

8

ACLs

128

ACEs

128 per ACL

ACL interfaces

4,000 per DVS

990 per host

Netflow policies

64 per DVS

64 per host

Netflow interfaces

4,000 per DVS

990 per host

Port channel

128 per DVS

4 per host

VXLAN Gateway1

8 pairs, 256 mappings

Multicast groups

1,000 groups

Tenants

512

IP pools

4,000

1.Cisco Nexus 1110 platform only.

Related Documentation

This section lists the documents used with the Cisco Nexus 1000V for KVM.

General Information

Cisco Nexus 1000V for KVM Release Notes

Install and Upgrade

Cisco Nexus 1000V for KVM Software Installation Guide

Cisco Nexus 1000V for KVM Software Installation Video

Cisco Nexus 1000V for KVM Software Installation Workflow

Configuration Guides

Cisco Nexus 1000V for KVM High Availability and Redundancy Configuration Guide

Cisco Nexus 1000V for KVM Interface Configuration Guide

Cisco Nexus 1000V for KVM Layer2 Configuration Guide

Cisco Nexus 1000V for KVM License Configuration Guide

Cisco Nexus 1000V for KVM Port Profile Configuration Guide

Cisco Nexus 1000V for KVM REST API Configuration Guide

Cisco Nexus 1000V for KVM Security Configuration Guide

Cisco Nexus 1000V for KVM System Management Configuration Guide

Cisco Nexus 1000V for KVM Verified Scalability Guide

Cisco Nexus 1000V for KVM Virtual Nework Configuration Guide

Cisco Nexus 1000V for KVM VXLAN Configuration Guide

Reference Guides

Cisco Nexus 1000V for KVM Command Reference

Cisco Nexus 1000V for KVM OpenStack API Reference Guide

Troubleshooting, Password Recovery, System Messages Guides

Cisco Nexus 1000V for KVM System Messages Guide

Cisco Nexus 1000V for KVM Troubleshooting Guide

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation at: http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html .

Subscribe to What’s New in Cisco Product Documentation , which lists all new and revised Cisco technical documentation, as an RSS feed and deliver content directly to your desktop using a reader application. The RSS feeds are a free service.