SPAN
Mungagwiritse ntchito ntchito ya SPAN kukopera mapaketi kuchokera ku doko lina kupita ku doko lina pa switch yomwe yalumikizidwa ku chipangizo chowunikira maukonde kuti muwone ndi kuthetsa mavuto pa maukonde.
SPAN siikhudza kusinthana kwa mapaketi pakati pa doko loyambira ndi doko loyambira. Mapaketi onse olowa ndi kutuluka kuchokera ku doko loyambira amakopedwa kupita ku doko loyambira. Komabe, ngati magalimoto omwe ali ndi mawonekedwe owonera apitirira bandwidth ya doko loyambira, mwachitsanzo, ngati doko loyambira la 100Mbps likuyang'anira kuchuluka kwa magalimoto omwe ali ndi doko loyambira la 1000Mbps, mapaketi amatha kutayidwa.
RSPAN
Kujambula zithunzi zakutali (RSPAN) ndi njira yowonjezera zithunzi zakutali (SPAN). Kujambula zithunzi zakutali kumaphwanya lamulo lakuti doko loyambira ndi doko lopitako ziyenera kukhala pa chipangizo chimodzi, zomwe zimathandiza kuti doko loyambira ndi doko lopitako zizitha kugwiritsa ntchito zipangizo zambiri za netiweki. Mwanjira imeneyi, woyang'anira netiweki akhoza kukhala m'chipinda chapakati cha zida ndikuwona mapaketi a deta a doko lozungulira lakutali kudzera mu chowunikira.
RSPANimatumiza mapaketi onse ojambulidwa ku doko lolowera la chipangizo chowonera cha Remote kudzera mu RSPAN VLAN yapadera (yotchedwa Remote VLAN) Ntchito za zipangizo zimagawidwa m'magulu atatu:
1) Source Switch: Doko lachitsime cha chithunzi chakutali la switch, limayang'anira kukopera uthenga wa source port kuchokera ku source switch output port output, kudzera mu Remote VLAN forwarding, kutumiza pakati kapena kusintha.
2) Switch Yapakati: mu netiweki pakati pa switch yoyambira ndi yopita, switch, iwonetseni kudzera pa Remote VLAN packet transmission kupita ku ina kapena kuti musinthe pakati. Ngati switch yoyambira yalumikizidwa mwachindunji ku switch yopita, palibe switch yapakati yomwe ilipo.
3) Chosinthira Chopita: Cholowera chakutali cha galasi lolowera, galasi lochokera ku Remote VLAN kuti lilandire uthenga kudzera pagalasi lolowera lolowera ku zida zowunikira.
ERSPAN
Kujambula zithunzi zakutali (ERSPAN) ndi njira yowonjezera ya kujambula zithunzi zakutali (RSPAN). Mu gawo lodziwika bwino la kujambula zithunzi zakutali, mapaketi ojambulidwa amatha kutumizidwa kokha pa Gawo 2 ndipo sangadutse mu netiweki yoyendetsedwa. Mu gawo lojambula zithunzi zakutali, mapaketi ojambulidwa amatha kutumizidwa pakati pa ma netiweki oyendetsedwa.
ERSPAN imayika ma phukusi onse ojambulidwa m'ma phukusi a IP kudzera mu ngalande ya GRE ndikuwatsogolera ku doko lopita ku chipangizo chowonera chakutali. Ntchito za chipangizo chilichonse zimagawidwa m'magulu awiri:
1) Source Switch: encapsulation remote image source port of switch, ndi amene amachititsa kopi ya uthenga wa source port kuchokera ku source switch output port output, kudzera mu GRE yomwe yaikidwa mu IP packet forwarding, kusamutsa ma switch kupita ku cholinga.
2) Chosinthira Chopita: cholumikizira galasi lakutali cholowera cholowera, chidzalandira uthengawo kudzera pa doko la galasi lolowera, pambuyo pochotsa kapule uthenga wa GRE wotumizidwa ku zida zowunikira.
Kuti mugwiritse ntchito ntchito yowonera ma port akutali, mapaketi a IP omwe ali ndi GRE ayenera kuyendetsedwa kupita ku chipangizo chowonera ma port chomwe chili pa netiweki.
Phukusi Lotulutsa Mapaketi
Imathandizidwa kuti iphatikize mapaketi aliwonse omwe ali mumsewu wojambulidwa kupita ku mutu wa RSPAN kapena ERSPAN ndikutulutsa mapaketiwo ku dongosolo lowunikira kumbuyo kapena switch ya netiweki.
Kutha kwa Phukusi la Ngalande
Inathandizira ntchito yothetsa mapaketi a tunnel, yomwe imatha kukonza ma IP address, masks, ARP responses, ndi ICMP responses for traffic input ports. Magalimoto omwe asonkhanitsidwa pa netiweki ya ogwiritsa ntchito amatumizidwa mwachindunji ku chipangizochi kudzera mu njira zolumikizira tunnel monga GRE, GTP, ndi VXLAN.
Kudula Mutu wa VxLAN, VLAN, GRE, MPLS
Inathandizira mutu wa VxLAN, VLAN, GRE, MPLS womwe unachotsedwa mu phukusi loyambirira la data ndikutumiza zotsatira.
Nthawi yotumizira: Januwale-03-2023
