Avaya Configuring AppleTalk Services Manuel d'utilisateur Page 28

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Configuring AppleTalk Services
1-12 117366-A Rev. A
When an AppleTalk node starts on the network, it requests zone and network
information from all routers on the circuit by broadcasting ZIP GetNetInfo
request packets (F
igure 1-7). Upon receiving a GetNetInfo request, the router
replies with a GetNetInfo response packet that confirms or denies the validity of
the zone name and supplies the correct network range. If the stored zone name is
invalid, the node uses the default zone name that is configured for the network
instead.
Figure 1-7. ZIP GetNetInfo Packets
Command = 5
0
0
Zone Name Length
Zone Name
Command = 6
Flags
Network Number
Range Start
Network Number
Range End
Zone Name Length
Zone Name
Multicast Address Length
Multicast Address
Default Zone Length
Default Zone
Only one zone
oneUse broadcast
Zone invalid
Flags
ZIP GetNetInfo Request ZIP GetNetInfo Reply
APT0007A
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