Synaccess-networks NP-0801DTM Instrukcja Użytkownika Pobierz pdf (Strona 262)

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ENHANCEDIPSTACKEXTENSIONAT

COMMA

NDS

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HSPA+ATCommandsReferenceGuide 262

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PINGRequest#PING

Usethiscommandtosendpingechorequestmessagesandtoreceivethecorrespondingechoreply.

Testcommandreportsthesupportedrangeofvaluesforthe#PINGcommand.

Syntax

Command Commandtype

AT#PING=<IPaddr>[,<retryNum>[,<len>[,<timeout>[,<ttl>]]]] Execute

AT#PING=? Test

ParametersandValues

<IPaddr> Stringtype.Addressoftheremotehost.Thisparametercanbeeither:

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 AnyvalidIPaddressintheformat:“xxx.xxx.xxx.xxx”.

 AnyhostnametobesolvedwithaDNSquery.

<retryNum> Thenumberofpingechorequesttosend.

Rangeis1‐64.Default:4.

<len> Thelengthofpingechorequestmessage.

Rangeis32‐1460.Default:32.

<timeout> Thetimeout,in100msunits,waitingasingleechoreply.

Rangeis1‐600.Default:50.

<ttl> Timetolive.

Ran

geis1‐255.Default:128.

Oncethesingleechoreplymessageisreceived,astringlikethefollowingisdisplayed:

#PING:<replyId>,<IpAd dress>,<replyTime>,<ttl>

where:

<replyId> Echoreplynumber.

<IPAddress> IPaddressoftheremotehost

<replyTime> Time,in100msunits,requiredtoreceivetheresponse.

<ttl> Timetoliveoftheechoreplymessage.

Notes

 Whentheechorequesttimeoutexpires(noreplyreceivedontime)theresponsecontains<replyTime>setto

600and<ttl>setto255.

 Toreceivethecorrespondingechoreplyisnotrequiredtoenable separatelyAT#ICMP.

 BeforesendPINGrequest,theGPRScontextmusthavebeenactivatedbyAT#SGACT=1,1.

Examples

AT#PING=”www.telit.com”

#PING: 01,"81.201.117.177",6,50

#PING: 02,"81.201.117.177",5,50

#PING: 03,"81.201.117.177",6,50

#PING: 04,"81.201.117.177",5,50

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