2020-02-17第9章、ping

简单网络管理语言(Simple Network Management Language)是一种类自然语言的脚本语言，它采用snmp、telnet、ping、dns、arp、ssh、tcp、udp、web等协议访问网络设备，内置smtp协议用于告警等邮件的发送，支持excel、mysql、sqlite等3种方式进行网管数据的存取。

第9章、ping

“ping”这个名字源于声纳定位操作。目的是为了测试另一台主机、网络设备是否可达。ping是一个通信协议，是TCP/IP协议的一部分;ping也是Windows、Unix和Linux系统下的一个命令, ping命令可检查网络是否连通，分析和判定网络故障。

1、ping语句分析

ping.ip {220.181.12.207} ttl {64} size {32}

ping测试，主机、设备ip为220.181.12.207，发送报文的ttl值为64，发送报文的长度为32字节

ping语句执行后，系统创建、更新以下变量，示例值如下：

ping.dest_ip=[220.181.12.207]，目的IP

ping.received_responses=[1]，接收到响应报文的个数

ping.roundtrip_time_milliseconds=[56]，响应时间（毫秒）

ping.reply_ip=[220.181.12.207]，应答报文的IP，当ttl减小到0的时候，网络设备应答

ping.reply_ttl=[54]，应答报文的ttl

ping.reply_bytes=[32]，应答报文的长度

ping.status=[IP_SUCCESS]

ping语句执行后，通过检查变量“ping.status”是否为“IP_SUCCESS”来判断ping是否成功。

2、示例脚本[C:\snmlipv6\ping\ping_ipv4.txt]

C:\snmlipv6\ping\ping_ipv4.txt

001screen.text at point {150} {30} string {9.ping test (ipv4): ttl,size,roundtrip_time,ip}

002

003var {v_ttl} value {0}

004var {v_y} value {60}

005screen.text at point {50} {~v_y~} string {send ping request}

006screen.line from point {10} {75} to point {180} {75}

007screen.text at point {350} {~v_y~} string {ping response}

008screen.line from point {200} {75} to point {630} {75}

009

010var {v_y} value {80}

011screen.text at point {10} {~v_y~} string {Dest IP Addr}

012screen.text at point {110} {~v_y~} string {TTL}

013screen.text at point {150} {~v_y~} string {Bytes}

014

015screen.text at point {200} {~v_y~} string {IP Addr}

016screen.text at point {300} {~v_y~} string {TTL}

017screen.text at point {350} {~v_y~} string {Bytes}

018screen.text at point {400} {~v_y~} string {ms}

019screen.text at point {450} {~v_y~} string {ping.status}

020

021run.set loglevel {debug}

022dns.get var {ip_addr} host {mail.163.com}

023run.set loglevel {nolog}

024

025var {v_ttl} value {0}

026var {v_y} value {80}

027var {v_sendbytes} value {1000}

028loop.begin

029 var {v_ttl} add number {1}

030 var {v_y} add number {20}

031 run.set loglevel {debug}

032 ping.ip {~ip_addr~} ttl {~v_ttl~} size {~v_sendbytes~}

033 run.set loglevel {nolog}

034 screen.text at point {10} {~v_y~} string {~ping.dest_ip~}

035 screen.text at point {110} {~v_y~} string {~v_ttl~}

036 screen.text at point {150} {~v_y~} string {~v_sendbytes~}

037

038 screen.text at point {200} {~v_y~} string {~ping.reply_ip~}

039 screen.text at point {300} {~v_y~} string {~ping.reply_ttl~}

040 screen.text at point {350} {~v_y~} string {~ping.reply_bytes~}

041 screen.text at point {400} {~v_y~} string {~ping.roundtrip_time_milliseconds~}

042 screen.text at point {450} {~v_y~} string {~ping.status~}

043 if.var {v_ttl} > {16}

044 loop.exit

045 if.end

046loop.end

047

048run.end

脚本执行画面如下：

3、示例脚本[C:\snmlipv6\ping\ping_ipv6.txt]

C:\snmlipv6\ping\ping_ipv6.txt

001screen.text at point {150} {30} string {9.ping test (ipv6): ttl,size,roundtrip_time,ip}

002

003var {v_ttl} value {0}

004var {v_y} value {60}

005screen.text at point {50} {~v_y~} string {send ping request}

006screen.line from point {10} {75} to point {180} {75}

007screen.text at point {350} {~v_y~} string {ping response}

008screen.line from point {200} {75} to point {630} {75}

009

010var {v_y} value {80}

011screen.text at point {10} {~v_y~} string {Dest IP Addr}

012screen.text at point {110} {~v_y~} string {TTL}

013screen.text at point {150} {~v_y~} string {Bytes}

014

015screen.text at point {200} {~v_y~} string {IP Addr}

016screen.text at point {400} {~v_y~} string {ms}

017screen.text at point {450} {~v_y~} string {ping.status}

018

019#run.set loglevel {debug}

020dns.set ipmode {ipv6}

021#dns.get var {ip_addr} host {www.ipv6-test.com}

022

023var {ip_addr} value {FE80::1}

024

025var {v_ttl} value {0}

026var {v_y} value {80}

027var {v_sendbytes} value {1000}

028loop.begin

029 var {v_ttl} add number {1}

030 var {v_y} add number {20}

031 ping.ip {~ip_addr~} ttl {~v_ttl~} size {~v_sendbytes~}

032

033 screen.text at point {10} {~v_y~} string {~ping.dest_ip~}

034 screen.text at point {110} {~v_y~} string {~v_ttl~}

035 screen.text at point {150} {~v_y~} string {~v_sendbytes~}

036 screen.text at point {200} {~v_y~} string {~ping.reply_ip~}

037 screen.text at point {400} {~v_y~} string {~ping.roundtrip_time_milliseconds~}

038 screen.text at point {450} {~v_y~} string {~ping.status~}

039 if.var {v_ttl} > {16}

040 loop.exit

041 if.end

042loop.end

043

044run.end

脚本执行画面如下：

目录: 1、var 2、screen 3、snmp 4、telnet 5、text 6、if 7、loop 8、dns 9、ping 10、arp 11、excel 12、smtp 13、tcp 14、udp 15、ssh 16、web 17、mysql 18、sqlite 19、Run 20、sys 21、macro 附录1、全部语句

2020-02-17第9章、ping

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