ΔΙΑΧΕΙΡΙΣΗ ΔΙΚΤΥΩΝ

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ΔΙΑΧΕΙΡΙΣΗ ΔΙΚΤΥΩΝ. Β. Μάγκλαρης [email protected] www.netmode.ntua.gr 21/10/2009. ΓΕΝΙΚΟ ΠΡΟΤΥΠΟ ΔΙΑΧΕΙΡΙΣΗΣ. Στοιχεία Δικτύου – Network Elements (NE) Δρομολογητές, Μεταγωγείς, Διαμορφωτές, Τηλεπ. Γραμμές κλπ. Σύστημα Λειτουργίας - Operation System ( OS) - PowerPoint PPT Presentation

Transcript of ΔΙΑΧΕΙΡΙΣΗ ΔΙΚΤΥΩΝ

  • . [email protected]

    21/10/2009

  • * Network Elements (NE), , , . . - Operation System (OS) SNMP (e.g. OPENVIEW, NETVIEW, SPECTRUM)TMN (Telecommunications Management Network) Manager / AgentSNMP (TCP/IP), CMIP (ISO/OSI)

  • * SNMP SNMP (Trap) manager Network Management Station (NMS)

  • * FCAPS (OSI OSI)Fault Management ( )

    Configuration Management ( )

    Accounting Management ( )

    Performance Management ( )

    Security Management ( )

  • * TCP/IP TCP/IP de-facto standards

    Internet

    ARPAnet (DoD)

  • * OSI - TCP/IP

    (Application) (Presentation)FTP, TELNET, HTTP, SMTP, IMAP, POP TFTP, DNS, RTP, NTP, L2TP, SNMP (Session) (Transport)TCP UDP(ICMP) (Network)IP (ARP) (Link)Ethernet, ATM, (Physical)...

  • * INTERNET (1)To Internet - (routers)

    IP datagrams

    : (.. ISP): Interior Gateway Protocols, IGP .. OSPF, IS-IS : Exterior Gateway Protocols, EGP: .. BGP

  • * INTERNET (2) IP ( ) DNS (Domain Name System)

    IP Address: 147.102.13.10

    32 bit number, 4 decimals ( 8 bit)

    IP Address : 147.102.0.0/16 ()147.102.13.0/24 ()147.102.13.10/32 ( interface )

  • * INTERNET (3) CIDR-VLSMClassless Inter-Domain RoutingVariable Length Subnet Masking subnet mask :255.255.0.0 = /16255.255.128.0 = /17 subnet mask (/8 - /30), .. 10.16/12

  • * ME IP & Announced Public IP Networks, Autonomous Domains, Autonomous System Numbers ASN, Border Gateway Protocol BGP Internet : 1.600.000.000 () 6.700.000.000 300.000 (announced public IP networks via BGP announcements) 50.000 ASN (Autonomous System Number) IP & ASN ICAAN (Internet Corporation for Assigned Names & Numbers) - IANA (Internet Assigned Number Authority) & RIRs (Regional Internet Registries) ARIN, RIPE NCC, APNIC, AFRINIC, LATNIC

  • * INTERNET (1/2)http://www.internetworldstats.com/stats.htm

  • * INTERNET (2/2)http://www.internetworldstats.com/stats.htm

  • * 135.207.0.0/16 BGP( Timothy G. Griffin,AT&T Research, Paris 2002)

  • *BGP TABLES: (PUBLIC) - http://bgp.potaroo.net/

  • * (ASN/RIR: Autonomous System Numbers Regional Internet Registry & ICAAN - )http://bgp.potaroo.net/

  • * DOMAIN NAMES (Registrars) & IP - ASN ADDRESS SPACES (Host Masters) : ICAN (Internet Corporation for Assigned Names & Numbers) http://www.icann.org/ TLD (Top Level Domain) DatabaseGeneric Domain Names (.edu, .com, .net, .org, .gov, .mil, ) (Domain Name Registrars): VeriSign ( .com, .net, ), Educause (.edu), PIR (.org)

    Country Code (cc) Domain Names (.gr, .fr, .uk, .de, .jp, ) (Domain Name Registrars )

    Host Masters: IP & Autonomous System Numbers (ASN) Regional Internet Registries (RIR) (Local Internet Registries) ARIN (American Registry for Internet Numbers) RIPE NCC (Resaux IP Eurepeens Network Coordination Center) APNIC (Asia Pacific Network Information Center) AFRINIC (African Network Information Center) LATNIC (Latin American & Caribbean Network Information Center)

  • * INTERNETThere is no Free LunchAOL Transit Data Network AT&T Global CrossingLevel 3Verizon BusinessNTT Com.QwestSAVVISSprintLink 9 Tier 1 ISPs 300,000 - Internet :

  • * ...ntua.gr (147.102.0.0/16, ASN 3323)

  • * & (NATIONAL RESEARCH & EDUCATION NETWORK, NREN)GRNET 82 (, , ), 200.000 http://netmon.grnet.gr

  • * & GANT15+ NRENs Dark Fiber SDH

    36 NRENs> 4000 > 40 . (, , , ) NREN PCDANTE

  • GANT Global ConnectivityGANT global connectivity April 2009

  • * INTERNET ... - ASN 3323GRNET (5408), GANT (20965), TELIA (1299) GLOBAL CROSSING (3549)http://www.ris.ripe.net/bgplay/ GANT Tier 1 Providers (Internet feeds)

    GLOBAL CROSSING

    TELIA

  • * ATHENS INTERNET EXCHANGE (AIX) ... & GRNET/, 1996: Tier 2 ISPs & Peering

    GRNET ()ForthnetHellas On LineAltec TelecomsNetOneVivodiVerizon HellasON TelecomsOTENETAT&T Global Network Services HellasORANGE BUSINESS SERVICESVodafone NETWINDTellasLannet

    BGP AIX, Tier 1 Tier 2 feeds ( )

  • GREEK INTERNET EXCHANGE (GR-IX)* , 2009

    Zero-cost Gigabit peering

    : GRNET Point of Presence PoP @ :

    ****