不涉及
客户在设备上插了SIC-4G-LTE-M的模块,使用4G手机卡来拨入VPDN网络,拨入的时候不成功。将手机卡插到设备上,日志里面会提示切换到3G,并且拨入不成功。
1.设备上SIC模块是正常识别的,查看Cell口的状态信息,Modem及SIM卡的状态都是正常的,但是Network显示的是无服务的状态,并且工作的制式是UMTS。
[H3C]display cellular-ethernet 2/0 all
Modem State:
Hardware Information
====================
Model = U8300C
Manufacturer = LONGSUNG
Modem Firmware Version = QA30002.1.6_MV11(4534_1.2.3_L0801)
Electronic Serial Number (ESN) = 10000000
International Mobile Equipment Identity (IMEI) = 869751028270757
International Mobile Subscriber Identity (IMSI) = 460010479737622
Mobile Equipment Identifier (MEID) = A100005B1C5352
Hardware Version = 30000
Modem Status = Online
Profile Information
====================
Profile index = 1
PDP Type = IPv4v6, Header Compression = OFF
Data Compression = OFF
Access Point Name (APN) = szdfb.4gel.apn
Authentication = PAP
Username = 222
* - Default profile
Network Information
====================
Current Service Status = No Service
Registration Status = Registered
Current Service = Combined
Current Roaming Status = Home
Current Data Bearer Technology = Unknown
Network Selection Mode = Automatic
Mobile Country Code (MCC) = 460
Mobile Network Code (MNC) = 01
Location Area Code (LAC) = 42310
Cell ID = 32128851
Radio Information
====================
Technology Preference = No preference specified (AUTO)
Technology Selected = UMTS
Configured LTE Band = 1,3,5,38,39,40,41
HDR (1xEVDO) related info
------------------
Current RSSI = No Signal
Current ECIO = -2 dBm
Current IO = -106 dBm
LTE related info
------------------
Current RSSI = -48 dBm
Current RSRQ = -4 dB
Current RSRP = -74 dBm
Current SNR = 19 dB
Tx Power = Invalid
Modem Security Information
====================
PIN Verification = Disabled
PIN Status = PIN Requirement Disabled
Number of PIN Retries Remaining = 3
Number of PUK Retries Remaining = 10
SIM Status = OK
ICCID = 89860116795400334568
2.在设备上查看有日志内有设备信号切换的报错,总是提示从4G切换到3G网络,并且还会有断开连接的报错。指导客户配置为WCDMA的网络后观察
%Jan 1 00:04:54:411 2013 H3C DRVICOUT/1/DrvIcOutStr:
(Cellular-Ethernet2/0)
The network connection has been switched to 3G.
%Jan 1 00:05:04:411 2013 H3C DRVICOUT/1/DrvIcOutStr:
(Cellular-Ethernet2/0)
The network connection has been disconnected!
%Jan 1 00:05:44:411 2013 H3C DRVICOUT/1/DrvIcOutStr:
(Cellular-Ethernet2/0)
The network connection has been switched to 3G.
%Jan 1 00:05:54:411 2013 H3C DRVICOUT/1/DrvIcOutStr:
(Cellular-Ethernet2/0)
The network connection has been disconnected!
===============_display cellular all===============
=========================================================
Error: Modem not present.
Modem State:
Hardware Information
====================
Model = U8300C
Manufacturer = LONGSUNG
Modem Firmware Version = QA30002.1.6_MV11(4534_1.2.3_L0801)
Electronic Serial Number (ESN) = 10000000
International Mobile Equipment Identity (IMEI) = 869751028270757
International Mobile Subscriber Identity (IMSI) = 460010479737624
Mobile Equipment Identifier (MEID) = A100005B1C5352
Hardware Version = 30000
Modem Status = Online
Profile Information
====================
Profile index = 1
PDP Type = IPv4v6, Header Compression = OFF
Data Compression = OFF
Access Point Name (APN) = szdfb.4gel.apn
Authentication = PAP
Username = 222
* - Default profile
Network Information
====================
Current Service Status = Service Available
Registration Status = Registered
Current Service = Combined
Current Roaming Status = Home
Current Data Bearer Technology = UMTS
Network Selection Mode = Automatic
Mobile Country Code (MCC) = 460
Mobile Network Code (MNC) = 01
Location Area Code (LAC) = 42310
Cell ID = 32128851
Radio Information
====================
Technology Preference = UMTS only
Technology Selected = UMTS
Configured LTE Band = 1,3,5,38,39,40,41
WCDMA related info
------------------
Current RSSI = -83 dBm
Current ECIO = -8 dBm
HDR (1xEVDO) related info
------------------
Current RSSI = No Signal
Current ECIO = -2 dBm
Current IO = -106 dBm
Modem Security Information
====================
PIN Verification = Disabled
PIN Status = PIN Requirement Disabled
Number of PIN Retries Remaining = 3
Number of PUK Retries Remaining = 10
SIM Status = OK
ICCID = 89860116795400334584
3.经过测试发现,将网络配置为3G网络是可以正常拨号的,但是配置为自动或者4G就不能正常拨号,怀疑现场运营商4G网络有问题。
4.将该卡装到电脑上测试,配置相同的APN接入点测试,发现能正常拨入到VPDN网络,并且工作在4G网络。测试发现运营商的4G网络是正常的。
5.通过测试发现,可能是设备的4G拨号有问题,由于VPDN的手机卡不能插到手机里测试,所以将普通的4G手机卡插到路由器内进行测试。测试发现拨入4G网络正常的,设备使用普通的4G手机卡拨号正常,怀疑是现场VPDN的4G手机卡有问题。
运营商在后台调整后该手机卡能正常通过4G拨入VPDN网络。
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