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maximum permitted for a certain modulation level (due to either hardware or regulatory restrictions),
the actual value will be automatically adapted to the applicable limitation.
4.11 Enhanced AU Tx Control
A new option in the AU Tx Control enables automatically shutting down the transmitter when the
Ethernet link is disconnected. This feature provides improved redundancy support since the SUs will
cease trying to synchronize with this AU and will immediately start searching for another AU.
4.12 VLAN QinQ Support
The Service Provider Link option supports the IEEE 802.1 QinO standard, which defines the way to
have 2 VLAN tags (double-tagged frames). This procedure allows an additional VLAN tag, referred as
Service Provider VLAN tag, to be inserted into an existing IEEE 802.1 Q tagged Ethernet frame,
providing a solution to transport multiple customers’ VLANs across the service provider’s network
without interfering with each other through the use of the operators VLANs for managing the operator’s
network.
4.13 Configurable Threshold for Lost Beacons Watchdog
When it is unable to send beacon frames for a predetermined period of time, such as in the case of
high interference level, the AU resets itself. The Lost Beacons Transmission Threshold parameter
enables configuring the number of consecutive lost beacons after which the unit will reset itself,
providing the means to avoid unneeded resets under relatively poor conditions.
4.14 Increased Number of SUs Supported by AUS
The number of SUs (SU-3 and/or SU-6) that can be served by an AUS Access Unit has been
increased from 5 to 8. (AUS is not available in all regions. Please contact your Alvarion’s sales
representative for more details).
4.15 Increased Downlink Rate for SU-3 and SU-6
The maximum downlink rate (Downlink MIR) of SU-3 and SU-6 has been increased to 3 Mbps and 6
Mbps, respectively.
4.16 Increased Maximum Packet Size
For units with HW revision C and higher, the maximum length of an Ethernet packet that can be
accepted from or transmitted to the Ethernet port (excluding CRC) has been increased to 1600 bytes,
including VLAN(s) for single or double-tagged packets.
ALVARION LTD.
21A HABARZEL STREET,
TEL AVIV, 69710,
ISRAEL
TEL: 972-3-6456262
FAX: 972-3-6456222
HTTP://WWW.ALVARION.COM
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