Compatible Systems 5.4 - Manual (Page 84)

78 Chapter 4 - AppleTalk Routing & Bridging
Zone
If you have set this interface to be a numbered interface, you must provide a
zone name which will be associated with the network number entered above.
Zone names may be up to 32 characters in length.
Typically a name is chosen which has some significance to the physical loca-
tions connected by the WAN link. An example would be “NYC - Chicago
WAN.”
This name will appear in the Chooser program of computers which support
AppleTalk, but there will be no selectable AppleTalk devices in the zone.
Node
If you have set this interface to be a numbered interface, you must provide an
AppleTalk node number in this field which is unique for the network number
you entered above.
v Note: Compatible Systems routers require the assignment of a unique
AppleTalk node number for numbered WAN interfaces. On Frame Relay
networks in particular, you should keep a list of node number assignments to
avoid conflicts.
> Update Method
WAN interfaces which are configured to provide “dial-on-demand” service
will bring a connection up (i.e. dial the other end) when there are network
packets which must be transferred over the link. Once a dial-on-demand
connection is up, network traffic passing across the link causes the inactivity
timer for the link to be reset, keeping the connection up.
The AppleTalk RTMP protocol periodically sends out update information
across a link. These periodic update packets will cause a WAN interface set
for dial-on-demand operation to either stay up indefinitely or to continuously
dial, connect, and then drop the connection.
• If Triggered is selected with this pull-down menu, the router will modify
the standard AppleTalk RTMP behavior for this interface to send Apple-
Talk RTMP packets only when there has been an update to its routing
table information, or when it has detected a change in the accessibility of
the next hop router.
• If Periodic is selected with this pull-down menu, the router will use the
standard AppleTalk RTMP protocol, which sends RTMP packets over
the link every 10 seconds.
Optional Remote End-Node Network Number
Besides defining a method for router-to-router communication, the PPP
protocol defines a method for individual client machines to dial in to a router