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Cisco Bug: CSCuq42335 - [gn-gp]: show sub ggsn-o fu all" shows incorrect AMBR

Last Modified

Jan 28, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.0.0.56284

Description (partial)

Symptom:
"show sub ggsn-o fu all" shows incorrect AMBR value when Upgrade QoS supported flag = No & during HO from 4G to 3G , new MBR is sent from SGSN which is greater than AMBR.

Conditions:
1. Suppress-NRUPC CLI's are configured in GGSN service.

gtpc suppress-nrupc cpc qos-change
gtpc suppress-nrupc upc qos-change

2. dpca-custom17 is configured as Gx dictionary.

3. LTE call established.

ambr.ambr_up=119
ambr.ambr_down=135
u,p,b=mme.initialAttachTrgr(imsi)

4. HO to 3G initiated.

def mangle_mbr(iebuf):
return iebuf[0:9]+'\x86\x96'+iebuf[11:]


mangle_ie_hook[GTPv1_MSG.UPDATE_PDP_REQ,GTPv1_IE.QOS,0]=mangle_mbr


com=CommonFlags(nrsn=0)
sgsn.RelocateFromMME(u,mme=mme,pco=pco1,comm_flags=com,rai=rai)


ISSUE was : "show sub ggsn-o fu all" shows incorrect AMBR
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