Fórum Root.cz
Hlavní témata => Software => Téma založeno: adsffddsa 26. 09. 2015, 23:22:45
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Mam na vas taku sietarsku otazku. Ako utilita ping pozna, ze uz nema cakat na odpoved a vytimeoutovalo to? Z logiky veci asi o zahodeni paketu u nejakeho firewallu nemusi dostat spravu.
Doteraz som si myslel, ze je timeout po sekunde, ale po skusenostiach s novym mobilnym internetom to tak nevyzera. Tam bol rtt v extreme az 850s. Evidentne s takym niecim nepocitali ani autori pingu, lebo mdev pretieklo.
64 bytes from ja (*.*.*.*): icmp_seq=10517 ttl=52 time=751825 ms
--- ja ping statistics ---
11266 packets transmitted, 9255 received, +1 errors, 17% packet loss, time 11287359ms
rtt min/avg/max/mdev = 249.381/19386.932/850373.934/-672435495423.-69 ms, pipe 849
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http://linux.die.net/man/8/ping:
-W timeout
Time to wait for a response, in seconds. The option affects only timeout in absense of any responses, otherwise ping waits for two RTTs.