Intel 2011B Configuration Guide - Page 19

Chapter 4. Using the Link Required Option Access Point A Current # WLAP Itf 0 Current State Priority Functional 8000 hex WLAP RF Statistics Root Interface Root Priority Root MAC Addr Root Path Cost 0 8000 hex 00:A0:F8:93:C5:B5 0 Wireless AP Interface Table Itf WLAP Itf Itf Path Designated Designated ID MAC Addr State Cost Root ID Cost WLAP ID Itf ID 8001 00:00:00:00:00:00 DIS 8002 00:00:00:00:00:00 DIS 8003 00:00:00:00:00:00 DIS 8004 00:00:00:00:00:00 DIS 1 800000a0f893C5B5 0 1 800000a0f893C5B5 0 1 800000a0f893C5B5 0 1 800000a0f893C5B5 0 800000a0f893C5B5 800000a0f893C5B5 800000a0f893C5B5 800000a0f893C5B5 8001 8002 8003 8004 Refresh-[F1] Timed-[F2] Previous-[F4] Exit-[ESC] Figure 4-3: No Wireless Link With Proper Ethernet Connections Access Point A Current # WLAP Itf 1 Current State Priority Functional 8000 hex WLAP RF Statistics Root Interface Root Priority Root MAC Addr Root Path Cost 1 8000 hex 00:A0:F8:8B:71:45 1 Wireless AP Interface Table Itf WLAP Itf Itf Path Designated Designated ID MAC Addr State Cost Root ID Cost WLAP ID Itf ID 8001 00:A0:F8:8B:71:45 FWD 8002 00:00:00:00:00:00 DIS 8003 00:00:00:00:00:00 DIS 8004 00:00:00:00:00:00 DIS 1 800000a0f88b7145 0 1 800000a0f893C5B5 0 1 800000a0f893C5B5 0 1 800000a0f893C5B5 0 800000a0f88b7145 800000a0f893C5B5 800000a0f893C5B5 800000a0f893C5B5 8001 8002 8003 8004 Refresh-[F1] Timed-[F2] Previous-[F4] Exit-[ESC] Figure 4-4: Wireless Link After Loss of Ethernet Connection 4.2 Link Required for Backing Up Root Access Point This section shows how to use the Link Required option so that designated WLAPs can roam to another root access point if the original one loses its Ethernet connection. In Figure 4-5, access points B and C are initially the designated WLAPs for root access point A. When access point A's Ethernet connection is broken, access points B and C reset then to roam to access point D. Furthermore, if access point D loses its Ethernet connection and access point A's Ethernet connection is restored, WLAPs B and C roams back to access point A. Configuring Access Point Bridging and Repeating (WLAP Mode) 13