SPAN
Unogona kushandisa basa reSPAN kukopa mapaketi kubva pachiteshi chakatarwa kuenda kune chimwe chiteshi paswitch yakabatana nemudziyo wekutarisa network kuti utarise uye ugadzirise matambudziko.
SPAN haikanganisi kuchinjana kwemapaketi pakati pechiteshi chepakutanga nechiteshi chekupedzisira. Mapaketi ese anopinda nekubuda kubva pachiteshi chekupedzisira anokopwa kuenda kuchiteshi chekupedzisira. Zvisinei, kana traffic yakatariswa ikapfuura bandwidth yechiteshi chekupedzisira, semuenzaniso, kana chiteshi chekupedzisira che100Mbps chikacherechedza traffic yechiteshi chekupedzisira che1000Mbps, mapaketi anogona kuraswa.
RSPAN
Kutarisa magirazi epachiteshi chiri kure (RSPAN) ndiko kuwedzera kwekutarisa magirazi epachiteshi chiri kure (SPAN). Kutarisa magirazi epachiteshi chiri kure kunoputsa muganho wekuti chiteshi chiri kubva uye chiteshi chekuenda chinofanira kunge chiri pamudziyo mumwe chete, zvichiita kuti chiteshi chiri kubva uye chiteshi chekuenda chikwanise kubatanidza zvishandiso zvakawanda zvenetwork. Nenzira iyi, maneja wenetwork anogona kugara mukamuri repakati remidziyo uye kuona mapaketi edata echiteshi chiri kure kuburikidza neanalyzer.
RSPANinotumira mapaketi ese ane magirazi kuenda kunzvimbo yekuenda yeRemote mirroring device kuburikidza neRSPAN VLAN yakakosha (inonzi Remote VLAN). Mabasa emidziyo anowira muzvikamu zvitatu:
1) Source Switch: Remote image source port of switch, ndiyo inotarisira kopi yemashoko e source port kubva ku source switch output port output, kuburikidza ne Remote VLAN forwarding, kutumira pakati kana kuti kushandura.
2) Intermediate Switch: mune network iri pakati pe source switch ne destination switch, switch, mirror kuburikidza ne Remote VLAN packet transmission kuenda kune inotevera kana kuti switch iri pakati. Kana source switch yakabatana zvakananga ne destination switch, hapana intermediate switch iripo.
3) Switch Yekuenda: Chiteshi chekuchinja chinoona girazi riri kure, girazi rinobva kuRemote VLAN kuti rigamuchire meseji kuburikidza nechiteshi chekuendesa chinoona girazi kuenda kumidziyo.
ERSPAN
Kuenzanisa magirazi eremote port (ERSPAN) kunowedzera kushandiswa kwekuenzanisa magirazi eremote port (RSPAN). Muchikamu chekuenzanisa magirazi eremote port, mapaketi ane mirror anogona kutumirwa chete paLayer 2 uye haagone kupfuura nepanetiweki ine nzira. Muchikamu chekuenzanisa magirazi eremote port, mapaketi ane mirror anogona kutumirwa pakati penetwork dzine nzira.
ERSPAN inofukidza mapaketi ese ane magirazi mumapaketi eIP kuburikidza neGRE tunnel uye inoaendesa kuchiteshi chekwainoenda kune mudziyo wegirazi uri kure. Mabasa emudziyo wega wega akakamurwa muzvikamu zviviri:
1) Source Switch: encapsulation remote image source port of switch, ine basa rekopi ye source port message kubva ku source switch output port output, kuburikidza neGRE yakaiswa muIP packet forwarding, transfer switches to purpose.
2) Switch Yekuenda: chiteshi chekuchinja chinovhara girazi riri kure, chichagamuchira meseji kuburikidza nechiteshi chegirazi chinovhura, mushure mekubvisa girazi, meseji yeGRE inotumirwa kumidziyo yekutarisa.
Kuti uite basa rekutarisa chiteshi chiri kure, mapaketi eIP akavharirwa neGRE anofanira kuendeswa kune mudziyo wekutarisa chiteshi uri panetwork.
Kuburitswa kwePacket Encapsulation
Inotsigirwa kufukidza chero mapaketi akatarwa mutraffic yakatorwa kuenda kuRSPAN kana ERSPAN header uye kuburitsa mapaketi kune back-end monitoring system kana network switch.
Kugumiswa kweTunnel Packet
Yakatsigira basa rekubvisa ma packet e tunnel, iro rinogona kugadzirisa ma IP address, masks, ARP responses, uye ICMP responses dze traffic input ports. Traffic inofanira kuunganidzwa pa user network inotumirwa zvakananga kuchishandiso kuburikidza nenzira dze tunnel encapsulation dzakadai seGRE, GTP, uye VXLAN.
Kubvisa Misoro yeVxLAN, VLAN, GRE, MPLS
Yakatsigira VxLAN, VLAN, GRE, MPLS header yakabviswa mupaketi yedata yekutanga ndokutumirwa.
Nguva yekutumira: Ndira-03-2023
