Avaya Configuring AppleTalk Services Manual de usuario descargar pdf (Pagina 29)

AppleTalk Overview

1-11

Figure 1-5. RTMP Data Packet

Zone Information Protocol (ZIP)

The Bay Networks AppleTalk router uses the Zone Information Protocol (ZIP) to

map networks to zone names on the internet. The router stores this information in

its zone information table, also called a

zone list

. The zone information table

contains one entry for each network on the internet. The entry is in the format

<network_start, zone list>

The zone list ﬁeld consists of a number of text strings that identify the zone names

that are speciﬁed for that network. The router maintains and updates the zone list

by broadcasting

ZIP

Query

packets for zone list information to all other routers in

the network. Other routers respond with ZIP response packets that have the zone

lists (F

igure 1-6).

Node ID Length

Router’s Network

Number

Router’s Node ID

RTMP Data

First Tuple (Network

Range, Distance,

and Version)

Second Tuple

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 123 124

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Avaya Configuring AppleTalk Services Manual de usuario Pagina 29