一、问题描述:
MSR3610(所有支持SIC-4G-LTE的V7设备通用),插入SIC-4G-LTE卡后卡能识别,但是modem一直显示Absent,如下所示:
===============display version===============
H3C Comware Software, Version 7.1.059, Release 0304P15
Copyright (c) 2004-2015 Hangzhou H3C Tech. Co., Ltd. All rights reserved.
H3C MSR36-10 uptime is 0 weeks, 0 days, 0 hours, 2 minutes
Last reboot reason : Power on
Boot image: cfa0:/msr36-cmw710-boot-r0304p15.bin
Boot image version: 7.1.059P08, Release 0304P15
Compiled Nov 14 2015 13:41:09
System image: cfa0:/msr36-cmw710-system-r0304p15.bin
System image version: 7.1.059, Release 0304P15
Compiled Nov 14 2015 13:41:09
Feature image(s) list:
cfa0:/msr36-cmw710-security-r0304p15.bin, version: 7.1.059
Compiled Nov 14 2015 13:41:09
CPU ID: 0x2
2G bytes DDR3 SDRAM Memory
8M bytes Flash Memory
PCB Version: 2.0
CPLD Version: 2.0
Basic BootWare Version: 1.43
Extended BootWare Version: 1.43
[SLOT 0]AUX (Hardware)2.0, (Driver)1.0, (CPLD)2.0
[SLOT 0]GE0/0 (Hardware)2.0, (Driver)1.0, (CPLD)2.0
[SLOT 0]GE0/1 (Hardware)2.0, (Driver)1.0, (CPLD)2.0
[SLOT 0]GE0/2 (Hardware)2.0, (Driver)1.0, (CPLD)2.0
[SLOT 0]CELLULAR0/0 (Hardware)2.0, (Driver)1.0, (CPLD)2.0
[SLOT 0]CELLULAR0/1 (Hardware)2.0, (Driver)1.0, (CPLD)2.0
[SLOT 2]SIC-4G-LTE (Hardware)2.0, (Driver)1.1, (CPLD)1.0
===============controller infomation===============
Cellular0/0
Current state: DOWN
Description: Cellular0/0 Interface
Modem status: Absent
Cellular0/1
Current state: DOWN
Description: Cellular0/1 Interface
Modem status: Absent
Cellular2/0
Current state: DOWN
Description: Cellular2/0 Interface
Modem status: Absent
二、过程分析:
原因为SIC-4G-LTE在生产过程中升级更新Modem芯片所致,前期LTE采用采用D51Q2模块,后期更新采用U8300C模块,U8300C模块相较于D51Q2模块,支持的网络更加丰富,除了WCDMA的900Mz频段之外,其他网络制式都可支持,当然也需要路由器主机版本更新才能兼容支持新卡。
两种4G卡可通过查看SIC卡上的4G模块标记确认:
老卡:D51Q2
新卡:U8300C
四、解决方法:
如果是D51Q2模块,需要在R0105P06版本之后支持(R0105P06版本之前不支持SIC-4G-LTE卡);
如果是U8300C模块,需要升级到R0305版本之后才可支持。
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