Release Notes
Contents
1. 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a diaa i We re on your wavelength Page 5 of 10 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 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 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 4 BreezeCONFIG Configuration Utility Version 4 0 A new version of BreezeCONFIG that supports all the new features of BreeezeACCESS VL version 4 0 is provided with the product BreezeCONFIG SW will also be available in the customer service section of the Alvarion web site 5 Documentation The information in the release notes is complementary to the product documentation provided with the products BreezeACCESS VL documentation includes the System Manual for BreezeACCESS VL version 4 0 User Manual for BreezeCONFIG version 4 0 installation support documents and release notes2. All the documentation including the latest release notes is available in the customer service section of the Alvarion web site 6 Compatibility and Interoperability Version 4 0 is fully compatible with versions 2 0 3 0 and 3 1 Nevertheless it is recommended to always upgrade existing equipment to the latest version HW revision C is compatible with HW revision A and B If an SU with HW revision A or B is used in a cell where the AU is with HW C or vice versa performance will be those available with the lower HW revision The same is true also for cases where units that run different SW version are used the performance will be determined by the unit with the lower SW version ALVARION LTD 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a kaan i We re on your wavelength Page 6 of 10 The SW package will be available in the customer service section of the Alvarion web site 7 Important Notes BA VL plugged in modules AU BS and SU E BS work only with BS SH VL chassis and requires a VL power supply BS PS AC DC BS SH VL chassis can be identified by the label BreezeACCESS VL II XL 4900 on the chassis s flange arms AU BS and SU E BS plugged in modules are identified by the label BS AU VL 4900 VL AC and DC power supply units for the chassis are identified by the BS PS VL 4900 BS SH VL chassis can host all GFSK 3Mbps products at
3. Provider link mode with VLAN ID Management 65535 cannot be managed from either the Ethernet or wireless ports e Upon upgrade to SW version 4 0 from a lower version the FTP Client IP Address and Subnet Mask do no longer exist as configurable parameters and the unit s IP parameters are used instead Upon downgrade from SW version 4 0 to a lower version the FTP Client IP Address of the unit is automatically set to the same value as the IP Address of the device In this case following warning message appears WARNING Same Unit IP Address and FTP Client IP Address kkk kkk FTP Client IP Address ignored until change and reset After downgrade it is recommended changing the FTP Client IP Address to 1 1 1 3 and the FTP Server IP Address to 1 1 1 4 ALVARION LTD 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a daan i We re on your wavelength Page 8 of 10 With Version 4 0 higher number of PHY ERR may be reported The increase of reports is due increase in types of errors detected especially with HW rev C This by itself is not affecting the functionality of the units but only showing information that was previously not available Noisy environment will produce higher number of PHY ERR and these reports can be used to identify noisy channels SNMP management was checked with SNMPC version 5 1 11e 8 Limitations amp Known Issues Sens
4. manually be set to any value up to the maximum of 32896 ALVARION LTD 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a diaa i We re on your wavelength Page 7 of 10 e When Wireless Link Prioritization feature is activated the prevention of Low Priority Traffic Starvation is automatically disabled e Remote changes of the Maximum Modulation Level in an SU while Adaptive Modulation is disabled may lead to lose of connectivity with the unit The recommended workaround is to enable Adaptive Modulation reset the unit to apply the change and then change the Maximum Modulation Level e Adaptive Modulation may not converge to best modulation in some setups with high variance in noise levels In these cases better performances may be achieved with manual modulation settings Adaptive Modulation Disabled e When using the Q in Q feature the units can be managed by a management station behind the AU only if the following conditions are met gt Management VLAN ID in the AU is identical to the Service provider VLAN ID configured in the SU gt Management VLAN ID in the SU must be configured to 65535 no VLAN This means that the SU will accept untagged management frames from the Ethernet port From the wireless port it will accept only tagged frames with a VLAN ID tag that matches the defined Service Provider VLAN ID IMPORTANT NOTE an AU operating in Service
5. value exceeds the 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 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 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 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 ALVARION LTD
6. Threshold Exceeded The number of packets that were dropped is not displayed gt Unsupported Subscriber Type a subscriber unit that is not supported tries to associate with an AUS which supports a maximum of 8 SU 3 and or SU 6 units The type of the unit that was rejected is not displayed e BreezeCONFIG does not support multiple configuration of frequency parameters and Spectrum Analysis e Limitations when using Alvarion s Networking Gateway gt The Networking Gateway does not support VLANs Hence it cannot be managed from remote if VLAN Management is used by the SU gt When using DRAP the DRAP TTL Retries parameter in the AU must be set to 255 since this is the value of the timeout in the Networking Gateway which is not configurable e Current AlvariSTAR s Device Driver 3 0 does not support the new features of versions 3 1 and 4 0 ALVARION LTD 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a dhaor s We re on your wavelength Page 10 of 10 9 Fixed Issues e In previous versions the FTP Client IP Address was configurable and the user was warned against attempting to configure this parameter with the same value as the unit s IP address Starting on version 4 0 the FTP Client IP Address is not configurable and the fixed address is the same as the unit s IP address The default FTP Server IP Address has been changed to 10 0 0 253 e FTP f
7. a value above 13 dBm The Maximum Transmit power of the SU should not be set to a value above 10 dBm ALVARION LTD 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a diaa i We re on your wavelength Page 9 of 10 This requirement although not indicated in the certification document is needed following the tests performed in the certification lab e The maximum number of SUs that can be served by an AU when Data Encryption is enabled is 124 The number displayed for the Maximum Number of Associations is the value configured for this parameter which might be higher than the actual limit indicated in the Show Air Interface Parameters display e When encryption is used by the Authentication Algorithm Shared Key option in large cells more than 80 SUs the association process may be relatively long e In units with HW Revision B Burst Mode cannot be activated when using WEP for data encryption In units with HW Revision B the Burst Mode option will be blocked upon trying to enable it when using WEP for data encryption This limitation does not apply to units with HW Revision C e The Country Code Learning by SU feature does not function with the default ESSID ESSID1 e MAC Address Deny Allow List supports maximum 100 entries e The following traps are not fully supported by the Trap Monitor of BreezeCONFIG gt Ethernet Broadcast Multicast Limiter
8. all frequencies GFSK amp VL modules can co exist on the same chassis However they need different types of power supply Although minimum output power is defined as 10 dB when configuring the Tx Power manually when ATPC is enabled the SU s output power may be less than this minimum Extra care should be taken when configuring VLAN management and management IP filtering in order not to lose connectivity with unit In case of connectivity loss use the restore default parameters application to reset to factory values In case data encryption is used the maximum number of SUs that can be served by an AU is limited to 124 512 when data encryption is not used Note than when data encryption is needed it must be used by all SUs served by the same AU as well as by the AU itself Upon downgrade from version 4 0 to version 3 0 or lower all the information in the new Network Management IP Address Ranges table will be lost Hence management access may be lost if the unit was managed from an IP address that is on a subnet defined in the new tables When upgrading from version 3 0 or lower to version 4 0 the high low packet classification settings according to the old VLAN Priority Threshold or IP Precedence Threshold parameters will be lost The new parameters are forced to the default value of 7 meaning no prioritization When downgrading from version 4 0 to version 3 0 or lower the MIR value is changed to the default 14976 and can
9. ee a dbaor h We re on your wavelength Page 1 of 10 BreezeACCESS VL BreezeACCESS VL Version 4 0 Release Note July 2006 P N 214003 ALVARION LTD 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a daan i We re on your wavelength Page 2 of 10 1 Introduction BreezeACCESS VL version 4 0 introduces new features and some problem fixes 2 Frequency bands The currently supported frequency bands e 5 725 5 850 GHz 5 8 band FCC e 5 470 5 725 GHz 5 4 band ETSI e 5 150 5 350 GHz 5 2 band e 5 250 5 350 GHz 5 3 band FCC e 4 900 5 100 GHz 4 9 band 3 New Features and Improvements Unmatched Capacity through Improved Processing of Small Packets A drastic improvement in throughput with small packets provides unsurpassed overall networks capacity that positions BreezeACCESS VL as the undisputable best in the industry With the extraordinary capability to process more than 40 000 packets per second BreezeACCESS VL sectors deliver an unrivalled throughput of over 20 Mbps of user data with 64 bytes packets at 20 MHz Bandwidth with rev B and rev C HW Enhanced Support of Voice over IP Implementation of support for DRAP Dynamic Resources Allocation Protocol in the Access Unit enables it to communicate with Alvarion s Gateways that support this protocol This enables limiting the number of simultaneous voice sessions in the ce
10. istance Learning mechanism that is controlled by the AU enables each SU to adapt its Acknowledge timeout to its actual distance from the AU thus minimizing delays in the wireless link and increasing overall performance level Enhanced Prioritization with prevention of Low Priority Traffic Starvation The Low Priority Traffic Minimum Percent feature ensures that a certain amount of the traffic is reserved to low priority packets This prevents complete starvation of low priority traffic when there is a high demand for high priority traffic FIPS 197 Support An optional under license support of FIPS 197 enables using an encryption algorithm certified for compliance with Federal Information Processing Standards FIPS 197 licensed feature is available for units with HW revision C or higher excluding AUS units MAC Address Deny Allow List The functionality of the MAC Address List has been expanded to enables selection between Deny and Allow actions When the list is defined as a Deny List the AU will not provide services to a unit whose MAC address is included in the list enabling to deny services to selected units When the list is defined as an Allow List the AU will provide services only to units with a MAC address that is included in the list Improved Concatenation Mechanism The improved concatenation mechanism enables concatenating more frames providing an additional performance improvement for small packets traffic by eliminating the
11. itivity may change slightly as a function of frequency 2dB Transmission power accuracy is 1dB above 8dBm antenna port typical condition At lower levels the accuracy is 3dBm never contradicting regulations At very low levels the use of ATPC may cause significant fluctuations in the power level of the transmitted signal When operating at such low levels it is recommended to disable the ATPC Option in the SU and to set the Transmit Power parameter to the average Tx Power level before the ATPC was disabled In units operating in the 5 3 GHz band the following rule must be met for full compliance with FCC regulations When operating at 5270 MHz the Transmit Power parameter in the AU and the Maximum Tx Power parameter in the SUs served by this AU should not be set to a value above 17 Antenna Gain The maximum allowed EIRP for 5270 MHz is 17 dBm Note that at this stage units that operate in the 5 2 GHz and 5 3 GHz bands are released with Hardware revision B In BreezeACCESS VL units operating in the 4 9 GHz Japan band not B amp B point to point with a 10 MHz bandwidth the following rules must be met for full compliance with regulations gt When operating at 4945 MHz the Transmit Power parameter in the AU should not be set to a value above 11 dBm The Maximum Transmit Power of the SU should not be set to a value above 10 dBm gt When operating at 5055 MHz the Transmit Power parameter in the AU should not be set to
12. limitation on the number of frames that can be concatenated The maximum size of a concatenated frame can be configured enabling to optimize performance in accordance with the characteristics of the application expected for each SU ALVARION LTD 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a datan i We re on your wavelength Page 4 of 10 Simpler Installation and Configuration Changes through Automatic Sub Band Recognition The new User Defined Frequency Subsets option in the SU enables defining for each of the available Sub Bands the frequencies that will be used by the SU when scanning for an AU The SU is configured with a minimal set of parameters to ensure that it will be able to automatically detect and use the frequency bandwidth used by the AU including possible changes in the Sub Band being used by the AU This feature enables using Best AU mode and having an SU scanning and synchronizing with an AU without being configured in advanced to the proper AU sub band which may be of either 10 or 20 MHz channel width Simpler Installation and Management through Uniform Transmit Power Parameters In previous versions four different parameters were needed to define the Transmit Power AU and SU and Maximum Transmit Power SU parameters for the various modulation levels The simplified process uses a single parameter for all modulation levels In cases where this
13. ll through admission control maintaining high quality of service for voice calls When combined with the improved processing capability for small packets described above availability of a high number of voice calls in each sector can be ensured while maintaining excellent quality of service In addition DRAP support enables identification of Voice and Networking gateways that exist in the cell thus supporting efficient management of gateways that support the DRAP protocol Wireless Link Prioritization The existing Traffic Prioritization mechanism takes care of prioritization of the traffic transmitted by each unit The Wireless Link Prioritization mechanism complements the Traffic Prioritization ALVARION LTD 21A HABARZEL STREET TEL AVIV 69710 ISRAEL TEL 972 3 6456262 FAX 972 3 6456222 HTTP WWW ALVARION COM ee a daan i We re on your wavelength Page 3 of 10 mechanism by prioritizing traffic to from different SUs ensuring that transmissions of high priority traffic have precedence over transmissions of low priority traffic The Wireless Link Prioritization feature further enhances support of VoIP calls enabling appropriate handling of toll quality VoIP high priority together with best effort data low priority The Wireless Link Prioritization mechanism is an optional under license feature not available for AUS units Increased Performance Level through Improved Distance Learning Mechanism A special Per SU D
14. rames are handled by the units as management frames and they are processed accordingly by the relevant mechanisms such as VLAN and IP Filtering 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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