Cisco Flex 7500 Series Guida di riferimento rapido

Cisco Systems, Inc.

www.cisco.com

Flex 7500 Wireless Branch Controller

Deployment Guide

Last Updated: August, 2016

Introduction

This document describes how to deploy a Cisco Flex 7500 wireless branch controller. The purpose of

this document is to:

•Explain various network elements of the Cisco FlexConnect solution, along with their

communication flow.

•Provide general deployment guidelines for designing the Cisco FlexConnect wireless branch

solution.

Note Prior to release 7.2, FlexConnect was called Hybrid REAP (HREAP). Now it is called

FlexConnect.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

This document is not restricted to specific software and hardware versions.

Flex 7500 Wireless Branch Controller Deployment Guide

Product Overview

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Product Overview

Figure 1 Cisco Flex 7500

The Cisco Flex 7500 Series Cloud Controller is a highly scalable branch controller for multi-site

wireless deployments. Deployed in the private cloud, the Cisco Flex 7500 series controller extends

wireless services to distributed branch offices with centralized control that lowers total cost of

operations.

The Cisco Flex 7500 series (Figure 1) can manage wireless access points in up to 2000 branch locations

and allows IT managers to configure, manage, and troubleshoot up to 6000 access points (APs) and

64,000 clients from the data center. The Cisco Flex 7500 series controller supports secure guest access,

rogue detection for Payment Card Industry (PCI) compliance, and in-branch (locally switched) Wi-Fi

voice and video.

The following table highlights the scalability differences between the Flex 7500, 8500, WiSM2 and

WLC 5500 controller:

Note Flex 7500 only operates in FlexConnect mode. Additional modes are supported in WiSM2, 5500,

and 8500 series controllers.

Note DTLS license is required for Office Extend AP support.

Scalability Flex 7500/8500 WiSM2 WLC 5500

Total Access Points 6,000 1000 500

Total Clients 64,000 15,000 7,000

Max FlexConnect

Groups

2000 100 100

Max APs per

FlexConnect Group

100 25 25

Max AP Groups 6000 1000 500

Flex 7500 Wireless Branch Controller Deployment Guide

Product Specifications

Data Sheet

Refer to Cisco Flex 7500 Series Cloud Controller Data Sheet:

http://www.cisco.com/en/US/prod/collateral/wireless/ps6302/ps8322/

ps11635/data_sheet_c78-650053.html

Platform Feature

Figure 2 Flex 7500 Rear View

Network Interface Ports

Note • LAG support for 2x10G interfaces allows active-active link operation with fast failover link

redundancy. An additional active 10G link with LAG does not change the controller wireless

throughput.

•2x10G interfaces.

•2x10G interfaces support optic cable with SFP product # SFP-10G-SR and SFP-10G-LR.

•Switch side SFP or X2 product should be of the same type SR or LR.

Interface Ports Usage

Fast Ethernet Integrated Management Module (IMM)

Port 1: 1G WLC Service Port

Port 2: 1G WLC Redundant Port (RP)

Port 1: 10G WLC Management Interface

Port 2: 10G WLC Backup Management Interface Port (Port

Failure)

Flex 7500 Wireless Branch Controller Deployment Guide

Flex 7500 Boot Up

System MAC Addresses

Serial Console Redirect

The WLC 7500 enables console redirect by default at the baud rate of 9600, simulating Vt100 terminal

with no flow control.

Inventory Information

The following is the WLC 7500 Console:

(Cisco Controller) >show inventory

Burned-in MAC Address............................ E4:1F:13:65:DB:6C

Maximum number of APs supported.................. 2000

NAME: "Chassis" , DESCR: "Cisco Wireless Controller"

PID: AIR-CT7510-K9, VID: V01, SN: KQZZXWL

The Desktop Management Interface (DMI) table contains server hardware and BIOS information. The

WLC 7500 displays BIOS version, PID/VID and Serial Number as part of inventory.

Note Flex 7500 is currently shipped with VID=V02.

Flex 7500 Boot Up

Cisco boot loader options for software maintenance are identical to Cisco's existing controller platforms.

Port 1: 10G (Management Interface) System/Base MAC address

Port 2: 10G (Backup Management

Interface)

Base MAC address+5

Port 1: 1G (Service Port) Base MAC address+1

Port 2: 1G (Redundant Port) Base MAC address+3

Flex 7500 Wireless Branch Controller Deployment Guide

Flex 7500 Boot Up

Figure 3 Boot-Up Order

Flex 7500 Wireless Branch Controller Deployment Guide

Flex 7500 Boot Up

Figure 4 WLC Configuration Wizard

Note The Flex 7500 boot up sequence is equivalent and consistent with existing controller platforms.

Initial boot up requires WLC configuration using the Wizard.

Flex 7500 Wireless Branch Controller Deployment Guide

Flex 7500 Licensing

AP Base Count Licensing

AP Upgrade Licensing

Except for the base and upgrade counts, the entire licensing procedure that covers ordering, installation,

and viewing is similar to Cisco's existing WLC 5508.

Refer to the WLC 7.3 configuration guide, which covers the entire licensing procedure.

Software Release Support

The Flex 7500 supports WLC code version 7.0.116.x and later only.

Supported Access Points

Access Points 3600, 3500, 2600, 1600, 1550, 1260, 1240, 1140, 1130,1040, 700, and 600 series, Cisco

891 Series Integrated Services Router and Cisco 881 Series Integrated Services Router.

AP Base Count SKUs

300

500

1000

2000

3000

6000

AP Upgrade SKUs

100

250

500

1000

Flex 7500 Wireless Branch Controller Deployment Guide

FlexConnect Architecture

Figure 5 Typical Wireless Branch Topology

FlexConnect is a wireless solution for branch office and remote office deployments.

The FlexConnect solution enables the customer to:

•Centralize control and manage traffic of APs from the Data Center.

–

Control traffic is marked by red dashes in Figure 5.

•Distribute the client data traffic at each Branch Office.

–

Data traffic is marked by blue, green, and purple dashes in Figure 5.

–

Each traffic flow is going to its final destination in the most efficient manner.

Advantages of Centralizing Access Point Control Traffic

•Single pane of monitoring and troubleshooting.

•Ease of management.

•Secured and seamless mobile access to Data Center resources.

•Reduction in branch footprint.

•Increase in operational savings.

Flex 7500 Wireless Branch Controller Deployment Guide

FlexConnect Architecture

Advantages of Distributing Client Data Traffic

•No operational downtime (survivability) against complete WAN link failures or controller

unavailability.

•Mobility resiliency within branch during WAN link failures.

•Increase in branch scalability. Supports branch size that can scale up to 100 APs and 250,000 square

feet (5000 sq. feet per AP).

The Cisco FlexConnect solution also supports Central Client Data Traffic, but it is limited to Guest data

traffic only. This next table describes the restrictions on WLAN L2 security types only for non-guest

clients whose data traffic is also switched centrally at the Data Center.

Note These authentication restrictions do not apply to clients whose data traffic is distributed at the

branch.

Table 1 L2 Security Support for Centrally Switched Non-Guest Users

WLAN L2 Security Type Result

None N/A Allowed

WPA + WPA2 802.1x Allowed

CCKM Allowed

802.1x + CCKM Allowed

PSK Allowed

802.1x WEP Allowed

Static WEP WEP Allowed

WEP + 802.1x WEP Allowed

CKIP - Allowed

Table 2 L3 Security Support for Centrally and Locally Switched Users

WLAN L3 Security Type Result

Web Authentication Internal Allowed

External Allowed

Customized Allowed

Web Pass-Through Internal Allowed

External Allowed

Customized Allowed

Conditional Web

Redirect

External Allowed

Splash Page Web

Redirect

External Allowed

Flex 7500 Wireless Branch Controller Deployment Guide

FlexConnect Architecture

For more information on Flexconnect external webauth deployment, please refer to Flexconnect External

WebAuth Deployment Guide

For more information on HREAP/FlexConnect AP states and data traffic switching options, refer to

Configuring FlexConnect.

FlexConnect Modes of Operation

For more information on FlexConnect Theory of Operations, refer to the H-Reap/FlexConnect Design

and Deployment Guide.

WAN Requirements

FlexConnect APs are deployed at the Branch site and managed from the Data Center over a WAN link.

The maximum transmission unit (MTU) must be at least 500 bytes.

FlexConnect Mode Description

Connected A FlexConnect is said to be in Connected Mode

when its CAPWAP control plane back to the

controller is up and operational, meaning the

WAN link is not down.

Standalone Standalone mode is specified as the operational

state the FlexConnect enters when it no longer has

the connectivity back to the controller.

FlexConnect APs in Standalone mode will

continue to function with last known

configuration, even in the event of power failure

and WLC or WAN failure.

Deployment

Type

WAN

Bandwidth

(Min)

WAN RTT

Latency

(Max)

Max APs per

Branch

Max Clients

per Branch

Data 64 Kbps 300 ms 5 25

Data 640 Kbps 300 ms 50 1000

Data 1.44Mbps 1 sec 50 1000

Data + Voice 128 Kbps 100 ms 5 25

Data + Voice 1.44Mbps 100 ms 50 1000

Monitor 64 Kbps 2 sec 5 N/A

Monitor 640 Kbps 2 sec 50 N/A

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