User's Manual Part 2

Release8PlanningGuide
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Issue2,November2007 Draft5forRegulatoryReview 166
Table 36: VLAN filters in point-to-multipoint modules
Where VLAN is active,
if this parameter value
is selected …
then a frame is discarded if…
because of this VLAN
filter in the Cyclone
software:
entering the bridge/
NAT switch through…
Ethernet… TCP/IP…
any combination of VLAN
parameter settings
with a VID not in the
membership table
Ingress
any combination of VLAN
parameter settings
with a VID not in the
membership table
Local Ingress
Allow Frame Types:
Tagged Frames Only
with no 802.1Q tag
Only Tagged
Allow Frame Types:
Untagged Frames Only
with an 802.1Q tag,
regardless of VID
Only Untagged
Local SM Management:
Disable in the SM, or
All Local SM Management:
Disable in the AP
with an 802.1Q tag
and a VID in the
membership table
Local SM Management
leaving the bridge/
NAT switch through…
Ethernet… TCP/IP…
any combination of VLAN
parameter settings
with a VID not in the
membership table
Egress
any combination of VLAN
parameter settings
with a VID not in the
membership table
Local Egress
14.2 PRIORITYONVLANS(802.1p)
Cyclone radios can prioritize traffic based on the eight priorities described in the IEEE
802.1p specification. When the high-priority channel is enabled on an SM, regardless of
whether VLAN is enabled on the AP for the sector, packets received with a priority of
4 through 7 in the 802.1p field are forwarded onto the high-priority channel.
VLAN settings in a Cyclone module can also cause the module to convert received non-
VLAN packets into VLAN packets. In this case, the 802.1p priority in packets leaving the
module is set to the priority established by the DiffServ configuration.
If you enable VLAN, immediately monitor traffic to ensure that the results are as desired.
For example, high-priority traffic may block low-priority.
For more information on the Cyclone high priority channel, see High-priority Bandwidth
on Page 86.