There are two kinds of networks in configuring Appletalk interfaces,
non-extended and extended. Non-extended is not Phase 1 unless it is used on Ethernet.
All AppleTalk routers on a given SMDS cloud need to agree that the
network is either non-extended or extended.
When To Run Non-Extended AppleTalk over SMDS
Because of a number of recent changes to AppleTalk over SMDS, the Cisco
TAC recommends that you use a non-extended configuration on your SMDS cloud,
unless all the IOS routers are running a software versions 10.2(7), 10.3(4),
11.0, or higher.
Run non-extended AppleTalk if you're running 10.0, 10.2(6), 10.3(3), or earlier
anywhere on the AppleTalk over SMDS cloud.
When To Run Extended AppleTalk over SMDS
If you need inter-operability with non-Cisco devices, migrate all your IOS routers
on the cloud to version 10.2(7), 10.3(4), 11.0, or higher, and run extended AppleTalk.
Also, once all IOS devices are running the newer code, an extended configuration will
allow dynamic AARPs on the SMDS Multicast channel, eliminating the need for static-maps.
All IOS Routers are configured for non-extended AppleTalk on the SMDS interface.
This is done with the appletalk address x.y interface sub-command. SMDS static
maps are required and used. Dynamic AARP is not supported on the multicast channel.
All IOS Routers on the SMDS cloud are configured for extended AppleTalk on the SMDS
inteface. This is done using the appletalk cable-range x-x interface sub-command.
SMDS static maps are not required and not used. Dynamic AARP is supported on the
ip address 192.168.200.1 255.255.255.0
appletalk cable-range 10-10
appletalk zone SMDS
smds address c151.0988.1923
smds static-map ip 192.168.200.2 c151.0988.8770
smds multicast APPLETALK e151.0988.2232
smds multicast AARP e151.0988.2232
smds multicast IP e151.0988.2232
smds multicast ARP e151.0988.2232