IPTV NETWORK REQUIREMENTS

Transcription

1 IPTV NETWORK REQUIREMENTS

2 INDEX 1 INTRODUCTION MINIMUM SPECIFICATIONS FOR EDGE SWITCH MINIMUM SPECIFICATIONS FOR CORE SWITCH NETWORK DESIGN BASED ON VLAN IP ADDRESSING TRAFFIC FLOWS FOR IPTV REMOTE ACCESS FOR IPTV INTERNET ACCESS THROUGH IPTV SERVER...6

3 1 INTRODUCTION In Netwrk, nrmally cexist different sevices and prtcls wrking tgether withut altering between them t the crrect peratin f each. I n this case, IPTV s ystem uses different netwrk services and prtcls amng there are sme, such as vide (Transprt Stream), which need t be priritized r simply separated frm the thers t nt affect perfrmance. Amng the services and prtcls used by IPTV system the vide services is that mre quality f service requires, s there is essential t separate system services. With this bjective has been defined netwrk tplgy cmbined star and tree technlgy based in VLAN (Virtual Lcal Area Netwrk) that achieved the separatin f services by creating different VLAN. Belw is the structure and netwrk addressing desired fr IPTV system, as well as the characteristics r minimum specificatins fr netwrk electrnics. 1

4 2 MINIMUM SPECIFICATIONS FOR EDGE SWITCH Managed Layer2. IGMP Snping enabled multicast filtering. 24/48 Prts. Required 1000BASE-TX 2 slts SFP fr GBIC mdules f ptical fiber Gigabit Ethernet 1000BASE-T Layer2 services: Management VLAN IEEE 802.1Q QS (Quality f Service) traffic priritizatin. QS based n prt. (Basic) IEEE 802.1p based n pririties. (Advanced) Rack munt. 2

5 3 MINIMUM SPECIFICATIONS FOR CORE SWITCH Managed Layer2 with inter-vlan static ruting. IGMP Querier, IGMP Snping enabled multicast filtering. 24/48 Prts Gigabit Ethernet 1000BASE-T. 4 slts SFP fr GBIC mdules f ptical fiber Gigabit Ethernet 1000BASE-T Layer2 services: Management VLAN IEEE 802.1Q QS (Quality f Service) traffic priritizatin. QS based n prt. (Basic) IEEE 802.1p based n pririties. (Advanced) Layer3 basic services Inter-VLAN static ruting. Rack munt.. 3

6 4 NETWORK DESIGN BASED ON VLAN Aspects t cnsider when cnfiguring and installing the netwrk based n VLAN: Separatin f traffic by VLAN. Vide VLAN must be defined t separate the vide traffic frm the rest f traffic wrking in the same installatin. 5 IP ADDRESSING Fr the VLAN which cmses the system the fllwng netwrk address es and gateway are specified: VLAN IPTV Server Server Default IP f VLAN IPTV is: /16 Server IP fr intranet (Client LAN): Must be defined by netwrk administratr Default dynamic IP n DHCP: frm t (prtable) Default static IP assigned in DHCP fr STB: frm x.1 t x.254 (Nt use because is the default Gateway fr IPTV Server). Default static IP fr the rest f netwrk equipment: x (headend/streamer/switches ) Default multicast addressing range frm t Multicast ad dressing ra nge fr ST B manage ment: & x (x depending f STB mdel). 4

7 6 TRAFFIC FLOWS FOR IPTV Intra IPTV Vide Traffic Traffic frm the headend t STB. Multicast traffic. Traffic Data Data traffic frm the server t STB Except this, the rest ff data traffic will be Unicast VERY IMPORTANT: IGMP snping must be supprted fr Ethernet net wrk. IGMP Querier must be managed frm IPTV VLAN. Unknw Multicast Filtering. Switches must permit multicast trafficc required by STBs thrugh IGMP and t filter the rest f traffic. This characteristic is knwn as unregistered multicast prt filtering. The services used between Server and STB are the fllwing: SERVER. <-> STB DHCP - NTP (Unicast) - HTTP (80) - Multicast (STB management) - Telnet (SERVER-->STB) - Management tls STB. Prtcl TCP. Prt

8 7 REMOTE ACCESS FOR IPTV The Ruter cnfiguratin fr access cntrl f the system must be as fllw: Fr VPN access, t per mit cnnectins t 22 prt f IP using inter- VLAN ruting. VLAN Intra net access: t permit access f 22 prt f IP designed by netwrk administratr. 8 INTERNET ACCESS THROUGH IPTV SERVER T enable a ll the services which IPTV sftware ffers, the system must access t internet thrugh the IPTV server. The cnnectin t internet can be dne as fllws: DHCP ruter with internet access. Internet VLAN ruting t IPTV VLAN. 6