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Cisco Bug: CSCuj62902 - 2G Attach - no response from SGSN

Last Modified

Feb 01, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.0 15.0(14)

Description (partial)

Symptom:
In 14.0 (51375) MR8 we can't perform successful 2G attach to SGSN

2013-Oct-09+14:09:48.251 [gbmgr 201953 debug] [4/0/3662 <gbmgr:3> gbmgr_ns.c:1591] [software internal system syslog] Gbmgr Parser-3 :Event Decode Success Demux key is IMSI <xxxxxxx>
2013-Oct-09+14:09:48.252 [imsimgr 114159 info] [4/0/3742 <imsimgr:1> imsimgr_sess.c:439] [software internal user syslog] imsimgr-1 Gb Manager forward request
2013-Oct-09+14:09:48.252 [imsimgr 114156 info] [4/0/3742 <imsimgr:1> imsimgr_sess.c:1164] [software internal user syslog] imsimgr-1 gbmanager imsi based forward request.IMSI <xxxxxxx>
2013-Oct-09+14:09:48.252 [imsimgr 114108 info] [4/0/3742 <imsimgr:1> imsimgr_sess.c:1169] [software internal user syslog] imsimgr-1 Received attach request with IMSI <xxxxxxx>
2013-Oct-09+14:09:48.250 [sessmgr 10207 info] [13/0/4053 <sessmgr:5008> sessmgr_sgsn.c:5754] [software internal system syslog] ignoring call drop req from imsimgr

Conditions:
2g attaches are failing if congestion control is enabled
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