Routing 19

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ROUTING

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GUESTBOOK

19. Configure a multiarea OSPF network

Purpose of virtual links

Link an area the does not have a physical connection to the backbone
Add redundancy to prevent failure from causing discontinuity of Area 0

68. Identify potential sources of congestion in an AppleTalk network.

AppleTalk Addressing

Layer 3 Datagram Delivery Protocol (DDP) defines: network(16bits).node(8bits).
No subnetting and classes.
Versions

Description	Phase 1	Phase 2
Network addresses per segment	1	Unlimited
Host addresses per network	127	Unlimited
Server addresses per network	127	Unlimited
Zones per network	1	255

AppleTalk Protocol

AARP (AppleTalk Address Resolution Protocol) maps a network address to a hardware address. Similar with ARP.

Monitoring AppleTalk Traffic

show appletalk globals
show appletalk interface
show appletalk interface brief
show appletalk route
show appletalk zone

Exam

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