Cisco Cisco Access Registrar 4.2 Specifikace stáhnout pdf (Strana 87)

100

101

3-29

Cisco Wireless LAN Controller Configuration Guide

OL-13826-01

Chapter 3 Configuring Ports and Interfaces

Enabling Link Aggregation

Step 10 After you configure STP settings for the ports, enter config spanningtree switch mode enable to enable

STP for the controller. The controller automatically detects logical network loops, places redundant

ports on standby, and builds a network with the most efficient pathways.

Step 11 Enter save config to save your settings.

Step 12 Enter show spanningtree port and show spanningtree switch to verify that your changes have been

saved.

Enabling Link Aggregation

Link aggregation (LAG) is a partial implementation of the 802.3ad port aggregation standard. It bundles

all of the controller’s distribution system ports into a single 802.3ad port channel, thereby reducing the

number of IP addresses needed to configure the ports on your controller. When LAG is enabled, the system

dynamically manages port redundancy and load balances access points transparently to the user.

Cisco 4400 series controllers support LAG in software release 3.2 and higher, and LAG is enabled

automatically on the controllers within the Cisco WiSM and the Catalyst 3750G Integrated Wireless

LAN Controller Switch. Without LAG, each distribution system port on the controller supports up to 48

access points. With LAG enabled, a 4402 controller’s logical port supports up to 50 access points, a 4404

controller’s logical port supports up to 100 access points, and the logical port on each Cisco WiSM

controller supports up to 150 access points.

Note You can bundle all four ports on a 4404 controller (or two on a 4402 controller) into a single link.

Figure 3-12 illustrates LAG.

Figure 3-12 Link Aggregation

1 2 ... 82 83 84 85 86 87 88 89 90 91 92 ... 635 636

Komentáře k této Příručce

Žádné komentáře

Cisco Cisco Access Registrar 4.2 Specifikace Strana 87

Komentáře k této Příručce