User's Manual Part 2
Release8InstallationandConfigurationGuide
Issue2,November2007 Draft5forRegulatoryReview 240
CAUTION!
An inappropriately low Bridge Entry Timeout setting may lead to temporary loss
of communication with some end users.
Translation Bridging
If you want the Translation Bridging feature, select Enabled. This has numerous
implications. For a full description of them, see Uplink Frame Contents on Page 81.
Send Untranslated ARP
If the Translation Bridging parameter is set to Enabled, then the Send Untranslated
ARP parameter can be
◦ disabled, so that the AP will overwrite the MAC address in Address Resolution
Protocol (ARP) packets before forwarding them.
◦ enabled, so that the AP will forward ARP packets regardless of whether it has
overwritten the MAC address.
See Uplink Frame Contents on Page 81 and Address Resolution Protocol on Page 162.
If the Translation Bridging parameter is set to Disabled, then the Send Untranslated
ARP parameter has no effect.
SM Isolation
Prevent or allow SM-to-SM communication by selecting from the following drop-down
menu items:
◦ Disable SM Isolation (the default selection). This allows full communication
between SMs.
◦ Block SM Packets from being forwarded. This prevents both
multicast/broadcast and unicast SM-to-SM communication.
◦ Block and Forward SM Packets to Backbone. This not only prevents
multicast/broadcast and unicast SM-to-SM communication but also sends the
packets, which otherwise would have been handled SM to SM, through the
Ethernet port of the AP.
Update Application Address
Enter the address of the server to access for software updates on this AP and registered
SMs.
2X Rate
See 2X Operation on Page 90.
Prioritize TCP ACK
To reduce the likelihood of TCP acknowledgement packets being dropped, set this
parameter to Enabled. This can improve throughput that the end user perceives during
transient periods of congestion on the link that is carrying acknowledgements. See AP-
SM Links on Page 99.
The General tab also provides the following buttons.