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					                                                                                   2006007540                 2
                                                                                   DOCUMENT ID                VERSION


TECHNICAL BULLETIN                                                                 None
                                                                                   LEGACY REF ID

TECHNICAL                                                                                             STATUS ACTIVE

                                                                                                    PRIORITY MAJOR

                                                                                             ACTIVE DATE 2007-01-23


FAMILY               LINE                                  PRODUCT
GSM                  Packet Core                           GGSN Shasta-GSM


                     SOFTWARE AFFECTED RELEASE GGSNS4.1.1-isos-build-9 GGSNS5.0A-isos-build-46
                                               GGSNS5.0.1-isos-build-17
                     SW FIXED REL
                     PREREQUIRED PATCH
                     PATCH ID                  G411_01334913A_DST, G50_01334913A_DST
                     REFERENCE ID              Q01334913
                     REGION                    APAC
                                               CALA
                                               EMEA
                                               GC
                                               NA
                     REPLACES                  2006007540.1
                     REPLACED BY
                     FUNCTION                  Technical
                     AUTHOR                    TECHNICAL-SUPPORT, WIRELESS (WLSGNT


                     2007 DAYLIGHT SAVING TIME CHANGES FOR THE GGSN

                     BACKGROUND

                     Due to the latest update of the daylight saving time definition, many regions around the globe are
                     required to install a patch. For a complete list of affected regions please consult the patch's PD
                     file.


                     ANALYSIS

                     If the DST patch is not installed, the GGSN will continue to operate. However, since the DST
                     definitiion may be incorrect, the system may not perform a DST time change at the right time. As
                     a result, time stamping of alarms and billing records may have an offset when compared to the
                     actual times.

                     RECOMMENDATIONS

                     All customers must download and install the DST patch corresponding to their GGSN software
                     version.

                     REQUIRED ACTIONS

PAGE 1 OF 2 TECHNICAL | DOCUMENT ID 2006007540
                     For GGSN 4.1.1 release (GGSN4.1.1-ISOS-BUILD-9), install patch G411_01334913A_DST.

                     For GGSN 5.0.0 release (GGSNS5.0A-ISOS-BUILD-46), install patch G50_01334913A_DST.

                     For GGSN 5.0.1 release (GGSN5.0.1-ISOS-BUILD-17), the release already contains all DST
                     changes except for Western Australia. A patch will be created at a later point in time.




                     ATTACHMENTS

                     There are no attachments for this bulletin

                     FOOTER INFORMATION


                     REISSUE REASON

                     Version 2 Changes: Modified title to meet corporate standards.


                     NORTH AMERICA
                     1 800 4-NORTEL
                     (1 800 466-7835)

                     EUROPE, MIDDLE EAST & AFRICA
                     00800 8008 9009
                     +44 (0)870-907-9009

                     ASIA PACIFIC
                     +61 2-8870-8800

                     http://www.nortel.com




PAGE 2 OF 2 TECHNICAL | DOCUMENT ID 2006007540

				
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Description: GGSN (Gateway GPRS Support Node) is mainly from the gateway role, it can be a variety of data network connection such as ISDN, PSPDN and LAN. Some of the literature, the GGSN called GPRS router. GGSN to the GSM network in GPRS packet data protocol conversion package, which can transmit data packets to the packet to a remote TCP / IP or X.25 network.