• Kodi Session Border Controller(SBC) ndi chiyani
A Session Border Controller(SBC) ndi chinthu cha netiweki chomwe chimayikidwa kuti chiteteze mawu a SIP pamanetiweki a Internet Protocol(VoIP).SBC yakhala mulingo wa de-facto wa telephony ndi ma multimedia services a NGN / IMS.
| Gawo | Border | Wolamulira |
| Kulankhulana pakati pa magulu awiri.Uwu ukhoza kukhala uthenga woyimba foni, zomvera, kanema, kapena data ina pamodzi ndi ziwerengero zakuyimba komanso mtundu wake. | Malo olekanitsa pakati pa gawo limodzi la network ndi ena. | Mphamvu zomwe oyang'anira malire amagawo amakhala nazo pamitsinje ya data yomwe imakhala ndi magawo monga chitetezo, kuyeza, kuwongolera, njira, njira, ma signing, media, QoS ndi malo osinthira ma data pama foni omwe amawongolera. |
| Kugwiritsa ntchito | Topology | Ntchito |
• Chifukwa chiyani mukufunikira SBC
Mavuto a IP Telephony
| Nkhani Zolumikizana | Nkhani Zogwirizana | Nkhani Zachitetezo |
| Palibe mawu / mawu amtundu umodzi wopangidwa ndi NAT pakati pa ma network osiyanasiyana. | Kugwirizana pakati pa zinthu za SIP za ogulitsa osiyanasiyana mwatsoka sizotsimikizika nthawi zonse. | Kulowetsedwa kwa ntchito, kumvetsera, kukana ntchito, kusokoneza deta, chinyengo chamtundu, mapaketi olakwika a SIP angapangitse kutaya kwakukulu kwa inu. |
Nkhani Zolumikizana
NAT isintha IP yachinsinsi kukhala IP yakunja koma siyingasinthe mawonekedwe a IP.IP adilesi yofikira ndiyolakwika, chifukwa chake sindingathe kulumikizana ndi malekezero.
Kusintha kwa mtengo wa NAT
NAT isintha IP yachinsinsi kukhala IP yakunja koma siyingasinthe mawonekedwe a IP.SBC imatha kuzindikira NAT, kusintha adilesi ya IP ya SDP.Chifukwa chake pezani adilesi yolondola ya IP ndipo RTP imatha kufikira kumapeto.
Session Border Controller amagwira ntchito ngati projekiti yama traffics a VoIP
Nkhani Zachitetezo
Chitetezo cha Attack
Q: Chifukwa chiyani Session Border Controller ikufunika pakuwukira kwa VoIP?
Yankho: Makhalidwe onse amawukidwe ena a VoIP amagwirizana ndi ndondomekoyi, koma machitidwe ake ndi achilendo.Mwachitsanzo, ngati ma frequency oyitanitsa ndi okwera kwambiri, awononga zida zanu za VoIP.Ma SBC amatha kusanthula gawo la pulogalamuyo ndikuzindikira machitidwe a ogwiritsa ntchito.
Chitetezo Chowonjezera
Q: Kodi kuchuluka kwa magalimoto kumayambitsa chiyani?
A: Zochitika zotentha ndizomwe zimayambira kwambiri, monga kugula kawiri 11 ku China (monga Black Friday ku USA), zochitika zazikulu, kapena kuwukira koyambitsidwa ndi nkhani zoyipa.Kuwonjezeka kwadzidzidzi kwa kulembetsa komwe kumachitika chifukwa cha kulephera kwamphamvu kwa data center, kulephera kwa ma netiweki kumakhalanso gwero lambiri loyambitsa.
Q: Kodi SBC imaletsa bwanji kuchuluka kwa magalimoto?
A: SBC imatha kusanja ma traffic mwanzeru molingana ndi kuchuluka kwa ogwiritsa ntchito komanso kufunikira kwa bizinesi, ndikukana kuchulukirachulukira: kuchulukirachulukira katatu, bizinesi sidzasokonezedwa.Ntchito monga kuchepetsa magalimoto / kuwongolera, mndandanda wakuda, kulembetsa / kuchepetsa kuyimba ndi zina.
Nkhani Zogwirizana
Kugwirizana pakati pa zinthu za SIP sizotsimikizika nthawi zonse.Ma SBC amapangitsa kuti kulumikizana kukhale kosavuta.
Q: Chifukwa chiyani zovuta zolumikizana zimachitika pomwe zida zonse zimathandizira SIP?
A: SIP ndi muyezo wotseguka, ogulitsa osiyanasiyana nthawi zambiri amakhala ndi matanthauzidwe osiyanasiyana ndi kukhazikitsa, zomwe zingayambitse kulumikizana ndi
/ kapena zovuta zomvera.
Q: Kodi SBC imathetsa bwanji vutoli?
A: Ma SBC amathandizira kukhazikika kwa SIP kudzera pa uthenga wa SIP ndikusintha mitu.Kufotokozera pafupipafupi komanso kuwonjezera/kufufuta/kusintha kumapezeka mu Dinstar SBCs.
Ma SBC amatsimikizira Ubwino wa Ntchito (QoS)
Kuwongolera machitidwe ambiri ndi ma multimedia ndizovuta.Njira yabwinobwino
ndizovuta kuthana ndi ma multimedia traffic, zomwe zimapangitsa kuti pakhale kuchulukana.
Unikani mafoni omvera ndi makanema, kutengera machitidwe a ogwiritsa ntchito.Call control
kasamalidwe: Kuwongolera mwanzeru kutengera woyimbira, magawo a SIP, nthawi, QoS.
Netiweki ya IP ikakhala yosakhazikika, kutayika kwa paketi ndi kuchedwa kwa jitter kumayambitsa khalidwe loipa
za utumiki.
Ma SBC amawunika kuchuluka kwa kuyimba kulikonse munthawi yeniyeni ndikuchitapo kanthu nthawi yomweyo
kuonetsetsa kuti QoS.
Session Border Controller/Firewall/VPN