Cisco Cisco Aironet 350 Wireless Bridge Guía De Información
AP(config)#ip http secure−server
When you add the ip http secure−server command, you see the RSA keys required for
secure communication regenerated on the APs.
secure communication regenerated on the APs.
Q. How does a client choose an access point (AP) to get associated?
A. Access point (AP) choice is done on the machine radio of the client. Based on the
manufacturer, driver, type of card, and so forth, it can use different metrics to make the
choice. The most common AP affiliation mechanism used in most clients is based on signal
strength received by the client from the APs. The 802.11 standard requires only that the
wireless client card reports signal strength with a simple metric called Received Signal
Strength Indicator (RSSI). The client then associates with the AP with the strongest signal. It
is well known that these algorithms can lead to poor performance. The main reason is due to
its lack of knowledge of the load on different APs.
manufacturer, driver, type of card, and so forth, it can use different metrics to make the
choice. The most common AP affiliation mechanism used in most clients is based on signal
strength received by the client from the APs. The 802.11 standard requires only that the
wireless client card reports signal strength with a simple metric called Received Signal
Strength Indicator (RSSI). The client then associates with the AP with the strongest signal. It
is well known that these algorithms can lead to poor performance. The main reason is due to
its lack of knowledge of the load on different APs.
Q. Can a wireless client roam between LWAPP APs and autonomous
APs?
APs?
A. No, roaming between LAPs and autonomous APs is NOT supported. The reason is that,
when connected to LWAPP APs, traffic is passed through an LWAPP tunnel. Since there is
no mobility tunnel between the Wireless LAN Controller and the autonomous APs, the roam
does not work.
when connected to LWAPP APs, traffic is passed through an LWAPP tunnel. Since there is
no mobility tunnel between the Wireless LAN Controller and the autonomous APs, the roam
does not work.
Q. How do you extend the coverage of the AP?
A. There are several ways to extend the coverage area for an AP. These are the most
important methods:
important methods:
Use APs in repeater mode.
♦
Use a secondary AP in AP mode with nonoverlapping channels.
♦
Change the transmitter power level parameter of the existent AP in order to extend
the coverage.
the coverage.
♦
Position the APs optimally.
♦
Refer to WLAN Radio Coverage Area Extension Methods for a complete description of how
to implement these methods.
to implement these methods.
Q. What are the implications if your AP is in repeater mode?
A. The Ethernet port is disabled in repeater mode. The effective throughput is cut in half once
for each hop away from the parent AP.
for each hop away from the parent AP.
In order to set up repeaters, you must enable Aironet extensions on both the parent (root)
access point and the repeater access points. Aironet extensions, which are enabled by default,
improve the ability of the access point to understand the capabilities of Cisco Aironet client
devices associated with the access point. If you disable Aironet extensions, you can
sometimes improve the interoperability between the access point and non−Cisco client
devices. Non−Cisco client devices can find communication difficult with repeater access
points and the root access point to which repeaters are associated.
access point and the repeater access points. Aironet extensions, which are enabled by default,
improve the ability of the access point to understand the capabilities of Cisco Aironet client
devices associated with the access point. If you disable Aironet extensions, you can
sometimes improve the interoperability between the access point and non−Cisco client
devices. Non−Cisco client devices can find communication difficult with repeater access
points and the root access point to which repeaters are associated.
The infrastructure SSID must be assigned to the native VLAN. If more than one VLAN is
created on an access point or wireless bridge, an infrastructure SSID cannot be assigned to a
non−native VLAN. This message appears when the infrastructure SSID is configured on
created on an access point or wireless bridge, an infrastructure SSID cannot be assigned to a
non−native VLAN. This message appears when the infrastructure SSID is configured on