Video: Tus naj npawb raws tu qauv yog ICMP?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
ICMP (Internet Control Message raws tu qauv ) nyob ntawm Network txheej ntawm OSI qauv (lossis tsuas yog saum toj no hauv Internet txheej, raws li qee qhov kev sib cav), thiab yog ib feem tseem ceeb ntawm Is Taws Nem raws tu qauv suite (feem ntau hu ua TCP/IP). ICMP yog muab Tus Qauv Zauv 1 hauv IP suite raws li IANA.org.
Yog li ntawd, tus xov tooj raws tu qauv yog dab tsi?
Tus xov tooj raws tu qauv yog tus nqi muaj nyob rau hauv " raws tu qauv ” teb ntawm IPv4 header. Nws yog siv los txheeb xyuas cov raws tu qauv . Qhov no yog 8 ntsis ua ntaub ntawv. Hauv IPv6 daim teb no hu ua "Next header" teb.
Kuj Paub, puas yog ICMP cov txheej txheem thauj khoom? Xov Xwm Tswj Internet raws tu qauv ( ICMP ) ICMP yog a thauj qib raws tu qauv nyob rau hauv TCP / IP uas sib txuas lus cov ntaub ntawv hais txog cov teeb meem kev sib txuas hauv network rov qab mus rau qhov chaw ntawm kev sib kis. Nws xa cov lus tswj hwm xws li lub hom phiaj network tsis tuaj yeem ncav cuag, qhov chaw tsis ua haujlwm, thiab qhov chaw quench.
Tom qab ntawd, ib tus tuaj yeem nug, vim li cas ICMP tsis muaj tus lej chaw nres nkoj?
LUS TEB: Lub ICMP pob ntawv tsis muaj qhov chaw thiab qhov chaw chaw nres nkoj naj npawb vim nws tau tsim los sib txuas lus network-txheej ntaub ntawv ntawm hosts thiab routers, tsis yog nruab nrab ntawm daim ntawv thov txheej txheej txheem. Txhua ICMP pob ntawv muaj "Hom" thiab "Code".
Dab tsi yog tus lej raws tu qauv rau TCP thiab UDP?
Muab Tus Naj Npawb Hauv Internet
| Decimal | Lo lus tseem ceeb | raws tu qauv |
|---|---|---|
| 17 | UDP | Tus neeg siv Datagram |
| 18 | MUX | Multiplexing |
| 19 | DCN-MEAS | DCN Measurement Subsystems |
| 20 | HMP | Hwm Saib Xyuas |
Pom zoo:
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