I-SPAN
Ungasebenzisa umsebenzi we-SPAN ukukopa iipakethi ukusuka kwizibuko elithile ukuya kwelinye izibuko kwiswitshi eqhagamshelwe kwisixhobo sokujonga inethiwekhi ukuze kujongwe kwaye kulungiswe iingxaki zenethiwekhi.
I-SPAN ayichaphazeli utshintshiselwano lwepakethi phakathi kwe-source port kunye ne-destination port. Zonke iipakethi ezingenayo neziphumayo kwi-source port zikopishwa kwi-destination port. Nangona kunjalo, ukuba i-mirrored traffic idlula i-bandwidth ye-destination port, umzekelo, ukuba i-destination port ye-100Mbps ijonga i-traffic ye-1000Mbps source port, iipakethi zinokulahlwa.
I-RSPAN
Ukuzijonga ii-port mirroring ezikude (RSPAN) kukwandiswa kwe-local port mirroring (SPAN). Ukuzijonga ii-port mirroring ezikude kuyaphula umda wokuba i-source port kunye ne-destination port kufuneka zibe kwisixhobo esinye, nto leyo evumela i-source port kunye ne-destination port ukuba zijikeleze izixhobo ezininzi zenethiwekhi. Ngale ndlela, umlawuli wenethiwekhi unokuhlala kwigumbi lezixhobo eliphakathi aze ajonge iipakethi zedatha ze-remote mirroring port nge-analyzer.
I-RSPANithumela zonke iipakethi ezibonisiweyo kwizibuko eliya kwindawo yesixhobo sokubukisa esikude nge-RSPAN VLAN ekhethekileyo (ebizwa ngokuba yi-Remote VLAN). Iindima zezixhobo zahlulwe zibe ziindidi ezintathu:
1) Iswitshi yoMthombo: Iswitshi yomthombo womfanekiso okude, inoxanduva lwekopi yomyalezo weswitshi yomthombo ovela kwiswitshi yomthombo, ngokusebenzisa i-Remote VLAN forwarding, idlulisele embindini okanye ekutshintsheni.
2) Iswitshi esiPhakathi: kwinethiwekhi ephakathi kweswitshi yomthombo kunye nendawo oya kuyo, switshi, jonga nge-Remote VLAN packet transmission ukuya kwenye okanye ukuze utshintshele embindini. Ukuba iswitshi yomthombo iqhagamshelwe ngqo kwindawo oya kuyo, akukho switshi ephakathi ekhoyo.
3) Iswitshi Yokufikela: Isango leswitshi elikude, isibuko esivela kwi-VLAN ekude ukuze kufumaneke umyalezo ngesango leswitshi elikude ukuze kujongwe izixhobo.
I-ERSPAN
I-Encapsulated Remote port mirroring (ERSPAN) lulwandiso lwe-remote port mirroring (RSPAN). Kwiseshoni eqhelekileyo ye-remote port mirroring, iipakethi ezibonisiweyo zinokudluliselwa kuphela kwi-Layer 2 kwaye azinakudlula kwinethiwekhi ejikeleziweyo. Kwiseshoni ye-encapsulated remote port mirroring, iipakethi ezibonisiweyo zinokudluliselwa phakathi kweenethiwekhi ezijikeleziweyo.
I-ERSPAN ihlanganisa zonke iipakethi ezibonisiweyo kwiipakethi ze-IP nge-tunnel ye-GRE ize izithumele kwizibuko eliya kwindawo yesixhobo sokubukisa esikude. Iindima zesixhobo ngasinye zahlulwe zibe ziindidi ezimbini:
1) Iswitshi yoMthombo: i-encapsulation remote image source port yeswitshi, inoxanduva lwekopi yomyalezo we-source port ovela kwi-source switch output port output, nge-GRE encapsulated kwi-IP packet forwarding, i-transfer switches to purpose.
2) Iswitshi Yokufikela: i-encapsulation remote mirror destination port yeswitshi, iya kufumana umyalezo nge-mirror mirror destinationport, emva kokususa i-capsulation umyalezo we-GRE uthunyelwe kwizixhobo zokubeka esweni.
Ukuze kuphunyezwe umsebenzi wokujonga izibuko ezikude, iipakethi ze-IP ezifakwe yi-GRE kufuneka zihanjiswe ziye kwisixhobo sokujonga indawo ekuyo kwinethiwekhi.
Imveliso yePakethi yokuVala
Ixhaswa ukugquma naziphi na iipakethi ezichaziweyo kwitrafikhi ebanjiweyo kwi-RSPAN okanye kwi-ERSPAN header kwaye ikhuphe iipakethi kwinkqubo yokubeka esweni emva okanye kwiswitshi yenethiwekhi
Ukupheliswa kwePakethi yeTunnel
Ixhase umsebenzi wokuphelisa ipakethi yetonela, onokumisela iidilesi ze-IP, iimaski, iimpendulo ze-ARP, kunye neempendulo ze-ICMP kwiipoti zokufaka ithrafikhi. Ithrafikhi eza kuqokelelwa kwinethiwekhi yomsebenzisi ithunyelwa ngqo kwisixhobo ngeendlela zokufaka itonela ezifana ne-GRE, GTP, kunye ne-VXLAN.
Ukuhluzwa kweentloko ze-VxLAN, VLAN, GRE, MPLS
Ixhase i-header ye-VxLAN, VLAN, GRE, MPLS ehluthwe kwiphakheji yedatha yokuqala kwaye ikhuphe imveliso ethunyelweyo.
Ixesha lokuthumela: Jan-03-2023
