User's Manual

Table Of Contents
Fortress ES-Series CLI Guide: Networking and Radio Configuration
57
3.4.8.2 Licensed TDWR Channels
NOTE: Without a
license, channels
116, 132 and 136 cannot
be entered in the
ChannelToUse set-
ting, or entered using
add xchannel.
In order to satisfy the FCC requirement for a 30 MHz guard
band around Terminal Doppler Weather Radar (TDWR)
operating within 35 km, UNII 2 extended channels 116, 132
and 136 are available for selection only when a
Channel
license is installed on the Mesh Point (refer to Section 5.6).
When a
Channel license is installed, you can satisfy the TDWR
requirement using static channel exclusions (refer to Section
3.4.8.3, below).
3.4.8.3 Channel Exclusion
A channel can be excluded from use by the Mesh Point’s
radios in the following ways:
NOTE:
Channel
sharing
among
multiple internal radios
can be enabled on select
model Mesh Points in
certain deployments.
Refer to Section 3.3.5.
It has been specified for exclusion (see below).
For DFS channels, radar was detected on the channel,
automatically excluding it from use for 30 minutes.
Another of the Mesh Point’s internal radios is using the
channel.
For bridging radios, the channel was learned remotely from
another node in the network.
NOTE: Remotely
learned channel
exclusions age out of the
excluded list after the
remote Mesh Point
stops propagating the
exclusion.
If a Channel license is installed (refer to Section 5.6), and the
Mesh Point is operating in the vicinity of Terminal Doppler
Weather Radar, the FCC requires you to exclude channels
within 30 MHz of TDWR frequencies (refer Section 3.4.8.2).
The currently excluded channels you can view with
show
xchannel
are sorted according to cause, where both the DFS
and other-radio channel exclusions are listed under
Local
Exclusion List Entries
.
Mesh Points with more than one radio display channel
exclusion information for each radio separately, or you can
specify the radio to view using
-radio:
#
show xchannel -radio <radioName>
RadioName: radio1
Static Exclusion List Entries (Admin)
Channel Band Freq (KHz)
------- ------- ----------
None
Local Exclusion List Entries
Channel Band Freq (KHz) Reason Timeout (mins)
------- ------- ---------- ------------------ --------------
None
Remote Exclusion List Entries (Seen on WDS Peer)
Channel Band Freq (KHz)
------- ------- ----------
None