Avaya Configuring IP, ARP, RARP, RIP, and OSPF Services Instrukcja Użytkownika Strona 30

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 390
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 29
Configuring IP, ARP, RARP, RIP, and OSPF Services
1-8
308627-14.20 Rev 00
Classless Interdomain Routing
Classless interdomain routing (CIDR) is an addressing scheme that employs
supernet addresses to represent multiple IP destinations. Rather than advertise a
separate route for each destination in a supernet, a router can use a supernet
address to advertise a single route called an aggregate route that represents
all of the destinations. CIDR reduces the size of the routing tables used to store
advertised IP routes.
OSPF supports classless routing within a domain.
Autonomous Systems
LANs and WANs interconnected by IP routers form a group of networks called an
internetwork. For administrative purposes, an internetwork is divided into
autonomous systems. An autonomous system (AS) is simply a collection of
routers (called gateways in IP terminology) and hosts run by a single technical
administrator that has a single, clearly defined routing policy. Each autonomous
system has its own unique AS number assigned by the appropriate Internet
Registry entity. Figure 1-3
depicts a sample internetwork segmented into three
autonomous systems.
Przeglądanie stron 29
1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 389 390

Komentarze do niniejszej Instrukcji

Brak uwag