原由会员zhangconglei_89提出,原帖地址为:http://www.gprshome.com/forum.ph ... p;tid=2066#lastpost。现悬赏2个G点求解。谢谢各位大侠的支持!
问题如下:“
1. ( )以下关于 SGSN pool 的描述,正确的有:
a) BSC/RNC 基于NRI 值找到该手机的serving-SGSN
b) 在Pool 内,所有的RAUs 均为Intra-SGSN RAU
c) BSC/RNC 需要配置NRI list 和 NRI比特长度
d) 在Pool 内,使用域名“NRIxxxx.RACxxxx.LACxxxx.MNCxxx.MCCxxx.GPRS”来获得old
SGSN IP 地址
2. ( ) 在NSN SGSN中,licence 文件安装在哪个路径下?
a) licence subdirectory of current SW package
b) licence subdirectory of root
c) BLCODE subdirectory of current SW package
d) root directory
3. ( ) SGSN 的硬件配置数据存放在以下哪个数据库中?
a) EQUIPM
b) ILDATA
c) GSBASE
d) GPDATA
4. ( ) Flexi ISN 中,哪个进程执行CDR-sending 功能?
a) ggsncs
b) ggsntunnel
c) routemgr
d) ippoold
5. ( A ) NSN SGSN 中,下列哪些单元负责收集计费原始数据(raw data )?
a) MCHU
b) SMMU
c) PAPU
d) CLSU
”
1. ( abcd )以下关于 SGSN pool 的描述,正确的有:
a)BSC/RNC 基于NRI 值找到该手机的serving-SGSN
NNSF的实现主要依赖于NRI。(UE注册成功后从CN节点得到TMSI/P-TMSI信息,UE存储后下次建立连接时使用同样的TMSI/P-TMSI信息,BSC/RNC根据TMSI/P-TMSI解码出NRI,建立NAS信令连接时还会在UE当前注册的CN节点上发起。)
b) 在Pool 内,所有的RAUs 均为Intra-SGSNRAU
因为基于NRI值选择Pool内SGSN的缘故,因此重新Attach以及RAU都会选择原来的SGSN
c)BSC/RNC 需要配置NRI list 和 NRI比特长度
无线侧节点(RNC)配置:
这里也只对配置步骤做一个大概说明,以华为RNC为例,相关配置过程需要去看RNC相关文档。
<1> 打开IU-FLEX功能
将PSIUFLEXFLAG置为1,使其支持PS域POOL功能;
<2> 设置NRI长度和Nul-NRI值。
<3> 添加CN节点
添加CN节点和对应的目的信令点索引,同时设置好CN节点的负载状态和容量参数。
<4> 指定CN节点和NRI的映射关系
<5> 按正常状态配置节点链路信息和相关参数
d) 在Pool 内,使用域名“NRIxxxx.RACxxxx.LACxxxx.MNCxxx.MCCxxx.GPRS”来获得old SGSNIP 地址
DNS中的定义
在组POOL的情况下,DNS中需要定义NRI和POOL中的SGSN的映射关系,对诺西SGSN而言,定义的是NRI和相应PAPU的映射关系,格式为:
nriXXXX.racYYYY.lacZZZZ.mnc0000.mcc01CC
其中,XXXX/YYYY/ZZZZ均为十六进制
2. ( a ) 在NSN SGSN中,licence 文件安装在哪个路径下?
a) licencesubdirectory of current SW package
安装前:Thelicence files are transferred to the network element with FTP, FTAM, or on adisk, and stored to the LICENCEsubdirectory under the root directory on the network element's harddisk. The licences are then installed with an MML command.
安装后:Whenthe installation of the licence is ready, the licence file is copied from theLICENCE subdirectory (under the root directory) to the SW build main directory (to a LICENCEsubdirectory), and the file in the LICENCE subdirectory under theroot directory is deleted. The system makes these copy and delete operationsautomatically, no user action is needed. 本题问的应该是安装后的licence目录。
b) licencesubdirectory of root
c) BLCODE subdirectory of current SW packaged
d) rootdirectory
3. ( a ) SGSN 的硬件配置数据存放在以下哪个数据库中?
a)EQUIPM
equipment database;
EQUIPM; EQDATAdatabase in which the hardware configuration data is stored byhardware configuration management programs
b) ILDATA
c)GSBASE
d)GPDATA
4. ( a )Flexi ISN 中,哪个进程执行CDR-sending 功能?
a)ggsncs
The ggsncs process (GTP' signalling) collects all created CDRsin the management blade and stores them in the queue, to later be sent to thecharging gateways.
b)ggsntunnel
c)routemgr
d)ippoold
5. ( a ) NSN SGSN 中,下列哪些单元负责收集计费原始数据(raw data)?
a) MCHU
The MCHU consists of two separate functional entities, the Charging Unit (CHU)and the Marker (M).The Charging Unit collects and stores charging data. The Marker,on the other hand, controls and supervises the GSW, hunts for free circuits andis responsible for establishing and releasing all connections. The Marker andthe GSW make up a switch-over entity, which is duplicated for 2n redundancy.
b) SMMU
c) PAPU
d) CLSU
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