Release Notes
Contents
1. alvarion BreezeMAX 3000 FDD Product Release 5 5 Official Release Note June 2008 Alvarion Ltd www alvarion com T varon Your Open WiMAX Choice General This document details the main features known limitations version compatibility bug fixing information and the documentation available for the BreezeMAX 3000 FDD product release 5 5 It corresponds to software versions 3 6 0 13 of the NPU Network Processing Unit 3 6 0 15 micro base station 3 6 1 10 AU access unit and 3 6 1 10 SU subscriber unit Introduction This release is based on SW version 3 5 of BreezeMAX 3000 and introduces new features in the product in all modules The new software version is named version 3 6 and is part of product release 5 5 Main Content and Features gt IP Location Aware Utilizing DHCP Option 82 transparent mode having the ability to correlate BS SU and end user traffic This is achieved by adding location related parameters in Option 82 fields of DHCP request e g CPE MAC BST MAC gt SU Frequency scanning Adding frequency scanning ability in the Subscriber Unit enabling automatic selection of base station frequency within the pre configured scanning range Includes also Best AU i e base station automatic selection rules In order to maintain the same system functionality with regards to frequency configuration this feature is disabled by default after the upgrade and can be configured to be enabled pe2. FDD Traps and Alarms BreezeMAX FDD Firmware Upgrade Procedure BreezeMAX 3000 FDD Release Note Using the Multi Channel Modem MMC Feature Technical Note MIB Changes Technical Note BreezeMAX Getting and Loading Feature Licenses AlvariSTAR Getting and Loading Feature Licenses Alvarion Ltd www alvarion com
3. ce QOS profile changes priority queue ARQ will be immediately effective only next time connection will be established o E g changing from NRT to RT ARQ will continue to be applied until next time the link to the SU will be established gt Packet loss due to capacity problem cannot be recovered Therefore to avoid packet loss due to capacity the system should not work in congestion The packets discarded indication can indicate whether this is the situation 7MHz Mode gt HW Limitation Alvarion Ltd www alvarion com aiad Waon VVVV Your Open WiMAX Choice o Base Station must have 4 Channels AU card o Only the first 2 IF channels out of the 4 channels are active also in 3 5MHz Channel BW mode o SU must be Dual mode CPE Pro or Dual mode CPE Pro S or Dual mode SU Self Install Limited to 256 SUs Only 2 channels out of the 4 channels are active By design SU MIR is limited to 12 mbps SW AU SU downgrade is blocked if 7MHz is configured Notice Information gt If one ODU unit is already connected with traffic running through it and the second ODU unit is connected there is a small interference period of 350 milliseconds on the first ODU unit Traffic may be interrupted and some CPEs may re synch When installing HP ODU in existing or as replacement to ODU installations it is necessary to check if the IF cable needs to be changed due to different power consumption More information is detailed in the installation secti
4. iMAX Choice Software download to a BreezeMAX CPEs may fail in case uplink traffic is higher than 2 5Mbps specifically per CPE When downloading a previous saved configuration file to a CPE the common name and location parameters are not updated In BreezeMAX PRO CPE units the following parameters are not present in the SU s monitor Serial Number RF Card HW Revision amp Boot Version In the Si CPE in case external antenna is to be used there is a need to configure the unit to work with it The default configuration is internal antenna no 3 When downloading upgrade software to SUs under micro base stations with a large number of SUs running in high load it is recommended to perform scheduled upgrade using AlvariSTAR with no more that 5 concurrent SUs Counters gt gt gt RbPMConnDLI counter is not working IfOutDiscards and iflnDiscards counters present inaccurate information Packet loss counting for service performance monitor Tx Vs Rx has a minor inaccuracy due to the sampling time of transmitted vs received counters Over long periods several minutes the inaccuracy is negligible ARQ gt Limited to 3 5MHz and 1 75MHz channel BW gt Limited to 256 SUs gt Packets per second on UL limited to 4500 pps 512Bytes average packet size is the point when throughout is not degraded gt When SUs are out of link capacity is reduced and therefore recovery is more exposed to loss due to traffic gt If servi
5. ion forwarding rule is 2 5 Mbps for BreezeMAX PRO and PRO S CPEs and 4 5 Mbps for BreezeMAX CPEs The management port is for local management only The management port may be used only when the network is different from the data port i e another router interface The restriction evolves from preventing the use of the same physical router MAC address for both data and management ports Configuring an IP address 0 0 0 0 for either the data or management port is not allowed Setting factory defaults should be done from local RS 232 as management IP address is changed during the process The bridge aging table in the NPU uses a fixed time definition for aging that is user configurable with default of 10 minutes When testing Point to Point bi directional UDP traffic the ratio between downlink and uplink traffic may not be symmetric downlink traffic will take higher bandwidth than uplink traffic In cases where an AU channel was disabled and the AU was reset first attempt to re enable the channel will fail although channel will report enabled However second attempt to enable this channel will succeed In some cases in order to downgrade the Micro Modular NPU version from 3 6 to 3 0 or toa lower 3 5 version one must go through downgrading the units version in the shadow to version 2 5 and only then go to version 3 0 If a channel is disabled and the AU is reset after AU reboot the first try to re enable the channel will fai
6. l In rare cases when NPU Ethernet data port speed is configured to 1Gbps the NPU may halt It is recommended to use a configuration of 100Mbps in this case There might be situations during normal operation in which a slow response of the SNMP can be noticed due to timeout of SNMP requests from inactive SU s Alvarion Ltd www alvarion com aw alvanion N Your Open WiMAX Choice In the process of upgrading an active 2 Ch AU with active services to 4 Ch AU it is necessary to upgrade to version 3 6 the 2 Ch AU and save the configuration as it has version 3 6 on it This configuration file can be applied after on the 4 channel AU and service will continue using the configuration file from the 2 Ch AU Newly added gt Frequency scanning can be locked on frequency which is 125KHz different from the BS frequency In this case performance is not affected it is compensated by DSP In any case to obtain the best frequency scanning performance to configure start and stop frequencies and to configure the channel spacing as available for the operator BS ID and BS mask appears also on frequency scanning menu of the SU accessed from NPU this is the same parameter as on the MAC menu IP location aware implementation leaves the relay agent giadar field IP address as 0 0 0 0 In case BS router is used also as a DHCP server it may interpret it as an attack and deny the DHCP option 82 packet coming from BreezeMAX In this case the r
7. on of the BST manual After installing unlimited BW license to the BST the user must reset either the BST AU or the SU in order to change the operating status and receive the unlimited BW In the 3 5GHz installations of AU ODU HP requires using also a power feeder to provide the power for these units Bugs Fixed amp Improvements In version 3 6 gt gt In 1 75MHz channel bandwidth the distance between the BST and the CPE displayed on the monitor was not accurate Cell radius parameter is now correct for 7MHz 3 5MHz and 1 75MHz no need to double the configured distance in case 7Mhz is in use SU s which their license expired will not be disconnected as was on previous versions they will be limited to 2mbps In case of having more than 200 SU s associated to an AU there are some situations when slow association of the SUs to the BS can be noticed In previous release the new 4 Ch AU was supported only the first channel currently also the second channels is supported including diversity and multichannel functionality gt Several scenarios of AU reset caused due to over processing of BW DSP timing issues gt PPPOE traffic runs on multicast connection in case of transparent service gt Invalid subnet mask could be used for management and data port Alvarion Ltd www alvarion com ee alvanion VV VV WV Vv gt Your Open WiMAX Choice Event log bug When a channel or AU that is not in use not in
8. outer must be configured to recognize it as Trusted for such DHCP option 82 requests See as an example on Cisco site http slaptijack com networking allowing option 82 in cisco dhcp relay agents In this release frequency scanning configuration is accessible only through telnet from NPU or directly from the SU AlvariSTAR and AlvariCRAFT will support it on next release While activating the new mode of QOS setting for DRAP voice signaling the NPU becomes less responsive for few minutes until if finishes configuring all DRAP sessions In this case also a message informing a successful setting will be on telnet after each connection is being modified This lasts only once after the initial activation In case the an AU SW doesn t exists in NPU and the AU is configured by telnet to load that inexistent version the AU may get hanged Configured SU name must be in English characters otherwise it will not be discoverable by Alvaristar Subscriber units gt If ATPC is disabled and TX power is set below 10 dB the BreezeMAX PRO and PRO S CPE units might transmit with an inaccuracy of up to 5 dB The WEB monitor application does not ask for password after SU is reset while logged in Alvarion s Voice Gateway will not work properly if Hybrid VLAN mode is enabled on one of the services passing through the VG Requires working in transparent VLAN mode Alvarion Ltd www alvarion com aiad alvarion s Your Open W
9. r SU from NPU and directly over the SU via the web interface Trial mode only gt Increase of number of supported DRAP voice services from 512 to 2000 per base station Thus expending the support of number of managed voiced entities per base station gt Support new VG s with DRAP Introducing 2 new primary voice subscriber units for primary voice with battery backup gt MMC and 2 order diversity in the 4CH based AU IDU and micro BST by supporting the 2 IF channel in the 4CH AU IDU adding the ability to work in MMC mode Multi Modem Card with 7MHz channel spacing Alvaristar and Alvaricraft Support Version 3 6 of BMAX Device is support starting from Device Driver version 4 5 0 72 of AlvariSTAR and AlvariCRAFT AlvariSTAR 4 5 0 72 version has to be installed on AlvariSTAR infrastructure platform version 3 5 1 50 or later Alvarion Ltd www alvarion com a alvarion s Your Open WiMAX Choice Known Problems amp Limitations Some problems and limitations will be addressed in future software versions Base Station gt gt AU ODU fails to initialize when IF cable is disconnected and connected again within 10 seconds When the bandwidth available at the Base Station backbone is less than the traffic at the wireless side the prioritization of service types may not be maintained it may happen that an RT service is not prioritized to a BE service The maximum possible throughput for multicast connect
10. stalled unnecessary trap will not be issued SIP server address can accept also domain address configured in VG not only IP address of the SIP server SU could remain hanged in base station found Rx established and didn t have timeout other than the 10 minutes of no association timeout Telnet session was not closed at reboot Restore backup configuration requires second reset Close of Telnet session if not in use Additional mode of QOS setting for voice signaling working with DRAP service was added it keeps more BW for data sessions Capacity counters were reported starting date year 1970 regardless how it is set by NPU Subnet mask can not be set on the management and data port through SNMP Compatibility BreezeMAX software version is compatible according to the following tables 3 5 3 0 35 30 35 30 3 5 3 0 3 5 3 0 3 5 3 0 ae S 802 16e ready Si 802 16e ready Alvarion Ltd www alvarion com a ae A Your Open WiMAX Choice Documentation gt VV VV V VV VV VV VV WV BreezeMAX FDD Modular Base Station System Manual BreezeMAX FDD Micro Base Station System Manual BreezeMAX CPEs PRO and Si CPEs Product Manual Base Stations Modular amp Micro Installation amp Maintenance User Manual PRO CPE_S Installation amp Maintenance Manual CPE IDU 1D and CPE ODU PRO Quick Installation Guide Si CPE Quick Installation Guide BreezeMAX FDD Troubleshooting Guide BreezeMAX
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