3Com WXR100 3CRWXR10095A, WX4400 3CRWX440095A, WX1200 3CRWX120695A, WX2200 3CRWX220095A WX switch

188CHAPTER 10: CONFIGURING MAP ACCESS POINTS

Dual-Homed Distributed Connections to WX Switches on One MAP Port Figure 13 shows an example of a MAP with a single physical link to a network containing three WX switches.

Figure 13 Single-homed Connection to Multiple WX Switches on One MAP Port

WX switch

WX switch

WX switch

Network

backbone

In this configuration, the MAP sends a boot request on its connected port. WX switches in the same subnet respond to the MAP. WX switches with high bias for the MAP respond immediately, whereas WX switches with low bias for the MAP respond after a brief delay.

If the switches are in another subnet, the MAP uses DNS to locate one of the switches, and asks the switch to send the IP address of the best WX to use, based on the bias settings on each switch and the capacity of each switch to add new active MAP connections. The MAP then requests its image and configuration files from the best WX.