某高速公路收费站配置3G的VPDN应用,发现20多个站点都能正常拨号成功,只有一个站点拨号始终失败,客户反馈所有站点均使用我司的MSR930设备
客户现场配置:
version 5.20, Release 2513P31
interface Cellular-Ethernet1/0
ip address cellular-allocated
dialer enable-circular
dialer-group 1
dialer number #777
nat outbound
#
ip route-static 0.0.0.0 0.0.0.0 Cellular-Ethernet1/0
profile create 1 static jxgsbf.vpdn.jx authentication-mode xxx //此配置不显示
查看相关的配置,发现在配置上没什么问题,查看display cell结果为:
===============_display cellular all===============
=========================================================
Error: Modem not present.
Modem State:
Hardware Information
====================
Model = DM11-2
Manufacturer = Wistron NeWeb Corp.
Modem Firmware Version = DM11-2-M9615ACETWMLZD45343175 1 [Feb 2 2015 16:46:58]
International Mobile Equipment Identity (IMEI) = 354083060318167
International Mobile Subscriber Identity (IMSI) = 204043641115814
Hardware Version = 20004
Modem Status = Online
Profile Information
====================
Profile index = 1
PDP Type = IPv4v6, Header Compression = OFF
Data Compression = OFF
Access Point Name (APN) = jxgsbf.vpdn.jx
Authentication = CHAP
Username = jxgsbflu@jxgsbf.vpdn.jx
* - Default profile
Network Information
====================
Current Service Status = Limited Regional Service
Registration Status = Searching
Current Roaming Status = Roaming
Current Data Bearer Technology = Unknown
Network Selection Mode = Automatic
Mobile Country Code (MCC) = 460
Mobile Network Code (MNC) = 20
Radio Information
====================
Technology Preference = No preference specified (AUTO)
Technology Selected = GSM
GSM related info
------------------
Current RSSI = -70 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
然后对比其他拨号成功站点的配置,发现其他站点使用的拨号接口均为cellular1/0,而非CE接口,于是修改本设备的接口模式:
[H3C]Card-mode slot 1 ppp 配置完成后,再次对接口cellular1/0进行操作,但是又会报如下错误:
profile create 1 static jxgsbf.vpdn.jx authentication-mode none
Error: Running a different mode with the modem.
此报错类型说明,此设备的modem并不支持修改为PPP模式,只能在CE接口下进行配置,至此,怀疑是Modem类型差异,经过对比
拨号失败的设备:
===============_display cellular all===============
=========================================================
Error: Modem not present.
Modem State:
Hardware Information
====================
Model = DM11-2
拨号成功的设备:
===============_display cellular all===============
=========================================================
Error: Modem not present.
Modem State:
Hardware Information
====================
Model = EM660
经查询:
EM660 |
华为 |
CDMA/EVDO 800/1900 MHz |
DM11-2 |
|
TDD-LTE: |
现场MSR930-LM的自带DM11-2 modem不支持电信3G,可以支持电信4G,建议现场更换为4G卡,或者更坏支持电信3G的MSR930设备
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