User guide

Canopy System User Guide Configuring a BH Timing Slave for the
Destination
pmp-0229 (Mar 2013)
359
Bridge Entry Timeout
Specify the appropriate bridge timeout for correct network operation with the existing network
infrastructure. Timeout occurs when the BHM encounters no activity with the BHS (whose MAC
address is the bridge entry) within the interval that this parameter specifies. The Bridge Entry
Timeout should be a longer period than the ARP (Address Resolution Protocol) cache timeout of
the router that feeds the network.
This parameter governs the timeout interval, even if a router in the system has a longer timeout
interval. The default value of this field is 25 minutes.
CAUTION!
An inappropriately low Bridge Entry Timeout setting may lead to temporary loss
of communication with some end users.
Bridging Functionality
Select whether you want bridge table filtering active (Enable) or not (Disable) on this BHS.
Selecting Disable allows you to use redundant BHs without causing network addressing problems.
Through a spanning tree protocol, this reduces the convergence time from 25 minutes to mere
seconds. However, you should disable bridge table filtering as only a deliberate part of your
overall network design. Otherwise, disabling it allows unwanted traffic across the wireless
interface.
Power Up Mode With No 802.3 Link
Specify the default mode in which this BHS will power up when it senses no Ethernet link. Select
either
• Power Up in Aim Mode—the BHS boots in an aiming mode. When the BHS senses an
Ethernet link, this parameter is automatically reset to Power Up in Operational Mode. When
the BHS senses no Ethernet link within 15 minutes after power up, the BHS carrier shuts off.
• Power Up in Operational Mode—the BHS boots in Operational mode and attempts
registration. This is the default selection.
Dynamic Rate Adapt
See 2X Operation on Page 89.
Frame Timing Pulse Gated
If this BHS extends the sync pulse to a BHM or an AP behind it, select either
• Enable—If this BHS loses sync, then do not propagate a sync pulse to the BHM or AP. This
setting prevents interference in the event that the BHS loses sync.