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4G模块通信流过滤器/分类器 +CGTFT

2017-06-12

　　4G模块通信流过滤器/分类器 +CGTFT

　　语法结构

命令	响应
+CGTFT=[<cid>, [<packet filter identifier>, <evalsuation precedence index> [,<source address and subnet mask> [,<protocol number (ipv4) / next header (ipv6)> [,<destination port range> [,<source port range> [,<ipsec security parameter index (spi)> [,<type of service (tos) (ipv4) and mask / traffic class (ipv6) and mask> [,<flow label (ipv6)> [,<direction>]]]]]]]]]]	OK +CME ERROR :<err>
+CGTFT?	+CGTFT: <cid>, <packet filter identifier>, <evalsuation precedence index>, <source address and subnet mask>, <protocol number (ipv4) / next header (ipv6)>, <destination port range>, <source port range>, <ipsec security parameter index (spi)>, <type of service (tos) (ipv4) and mask / traffic class (ipv6) and mask>, <flow label (ipv6)>[, <direction>] [<CR><LF>+CGTFT: <cid>, <packet filter identifier>, <evalsuation precedence index>, <source address and subnet mask>, <protocol number (ipv4) / next header (ipv6)>, <destination port range>, <source port range>, <ipsec security parameter index (spi)>, <type of service (tos) (ipv4) and mask / traffic class (ipv6) and mask>, <flow label (ipv6)> [,<direction>[…]]]
+CGTFT=?	+CGTFT: <PDP_type>, (list of supported <packet filter identifier>s), (list of supported <evalsuation precedence index>s), (list of supported <source address and subnet mask>s), (list of supported <protocol number (ipv4) / next header (ipv6)>s), (list of supported <destination port range>s), (list of supported <source port range>s), (list of supported <ipsec security parameter index (spi)>s), (list of supported <type of service (tos) (ipv4) and mask / traffic class (ipv6) and mask>s), (list of supported <flow label (ipv6)>s) [<CR><LF>+CGTFT: <PDP_type>, (list of supported <packet filter identifier>s), (list of supported <evalsuation precedence index>s), (list of supported <source address and subnet mask>s), (list of supported <protocol number (ipv4) / next header (ipv6)>s), (list of supported <destination port range>s), (list of supported <source port range>s), (list of supported <ipsec security parameter index (spi)>s), (list of supported <type of service (tos) (ipv4) and mask / traffic class (ipv6) and mask>s), (list of supported <flow label (ipv6)>s) […]]

　　命令描述

　　设置命令，在标识的TFT中添加一个分类器。特殊命令+CGTFT=使TFT中的所有分类器变为未定义。

　　取值说明

　　<cid>：和PDP上下文相关联的标号。

　　<packet filter identifier>：数据包过滤器/分类器的标号，取值为1-8。

　　<evalsuation precedence index>：过滤器/分类器优先级，取值为0-255。

　　<source address and subnet mask>：源地址和子网掩码。

　　IPv4 ‘a1.a2.a3.a4.m1.m2.m3.m4’ IPv6 ‘a1.a2.a3.a4.a5.a6.a7.a8.a9.a10.a11.a12.a13.a14.a15.a16. m1.m2.m3.m4.m5.m6.m7.m8.m9.m10.m11.m12.m13.m14.m15.m16‘ 文件名称：MZ382 AT 指令集

　　<protocol number (ipv4) / next header (ipv6)>：IPv4协议号或者IPv6 Next Header value，取值0-255。

　　<destination port range>：目的端口号，0-65535，形式为f.t。

　　<source port range>：源端口号，0-65535，形式为f.t。

　　<ipsec security parameter index (spi)>：ipsec 完全参数索引，00000000-FFFFFFFF

　　<type of service (tos) (ipv4) and mask / traffic class (ipv6) and mask>：IPv4 TOS字段、IPv6 TC字段以及掩码，取值为0-255，形式为t.m。

　　<flow label (ipv6)>：IPv6中的流标签，00000-FFFFF。

　　<direction>:代表过滤器应用的传输方向。

bit	含义
0	Pre-Release 7 TFT filter (see 3GPP TS 24.008 [8], table 10.5.162)
1	上行
2	下行
3	双向 (上行和下行)

　　典型示例

　　请求：AT+CGTFT=1,1,0,"1.1.1.1.1.1.1.1",0,"1.1","1.1",00000000,"1.1",00000<CR>

　　响应：<CR><LF>OK<CR><LF>

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