Cisco Cisco Access Registrar 4.2 Spezifikationen PDF herunterladen (Seite 62)

3-4

Cisco Wireless LAN Controller Configuration Guide

OL-13826-01

Chapter 3 Configuring Ports and Interfaces

Overview of Ports and Interfaces

Distribution System Ports

A distribution system port connects the controller to a neighbor switch and serves as the data path

between these two devices.

• Cisco 2000 series controllers have four 10/100 copper Ethernet distribution system ports through

which the controller can support up to six access points.

• Cisco 2100 series controllers have eight 10/100 copper Ethernet distribution system ports through

which the controller can support up to six access points. Two of these ports (7 and 8) are

power-over-Ethernet (PoE) enabled and can be used to provide power directly to access points that

are connected to these ports.

• Cisco 4402 controllers have two Gigabit Ethernet distribution system ports, each of which is capable

of managing up to 48 access points. However, Cisco recommends no more than 25 access points per

port due to bandwidth constraints. The 4402-25 and 4402-50 models allow a total of 25 or 50 access

points to join the controller.

• Cisco 4404 controllers have four Gigabit Ethernet distribution system ports, each of which is

capable of managing up to 48 access points. However, Cisco recommends no more than 25 access

points per port due to bandwidth constraints. The 4404-25, 4404-50, and 4404-100 models allow a

total of 25, 50, or 100 access points to join the controller.

Note The Gigabit Ethernet ports on the 4402 and 4404 controllers accept these SX/LC/T small

form-factor plug-in (SFP) modules:

- 1000BASE-SX SFP modules, which provide a 1000-Mbps wired connection to a network

through an 850nM (SX) fiber-optic link using an LC physical connector

- 1000BASE-LX SFP modules, which provide a 1000-Mbps wired connection to a network

through a 1300nM (LX/LH) fiber-optic link using an LC physical connector

- 1000BASE-T SFP modules, which provide a 1000-Mbps wired connection to a network

through a copper link using an RJ-45 physical connector

• The Cisco Catalyst 6500 Series Switch Wireless Services Module (WiSM) and the Cisco 7600

Series Router Wireless Services Module (WiSM) have eight internal Gigabit Ethernet distribution

system ports (ports 1 through 8) that connect the switch or router and the integrated controller. These

internal ports are located on the backplane of the switch or router and are not visible on the front

panel. Through these ports, the controller can support up to 300 access points.

• The controller network module within the Cisco 28/37/38xx Series Integrated Services Router can

support up to 6, 8, or 12 access points (and up to 256, 256, or 350 clients, respectively), depending

on the version of the network module. The network module supports these access points through a

Fast Ethernet distribution system port (on the 6-access point version) or a Gigabit Ethernet

distribution system port (on the 8- and 12-access point versions) that connects the router and the

integrated controller. This port is located on the router backplane and is not visible on the front

panel. The Fast Ethernet port operates at speeds up to 100 Mbps, and the Gigabit Ethernet port

operates at speeds up to 1 Gbps.

• The Catalyst 3750G Integrated Wireless LAN Controller Switch has two internal Gigabit Ethernet

distribution system ports (ports 27 and 28) that connect the switch and the integrated controller.

These internal ports are located on the switch backplane and are not visible on the front panel. Each

port is capable of managing up to 48 access points. However, Cisco recommends no more than 25

access points per port due to bandwidth constraints. The -S25 and -S50 models allow a total of 25

or 50 access points to join the controller.

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