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Switched Multimegabit Data Service (SMDS)

Configuring AppleTalk on SMDS

Cisco - Configuring AppleTalk on SMDS

Document ID: 10693

Updated: Oct 04, 2005

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Introduction

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.

Non-Extended Example

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.

Configuration:

  interface Serial0
  ip address 192.168.200.1 255.255.255.0
  encapsulation smds
  appletalk address 10.1
  appletalk zone SMDS
  smds address c151.0988.1923
  smds static-map ip 192.168.200.2 c151.0988.8770 
  smds static-map appletalk 10.2 c151.0988.8770 
  smds multicast APPLETALK e151.0988.2232
  smds multicast IP e151.0988.2232
  smds multicast ARP e151.0988.2232
  smds enable-arp

Extended Example

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 multicast channel.

Configuration:

  interface Serial0
  ip address 192.168.200.1 255.255.255.0
  encapsulation smds
  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
  smds enable-arp


Related Information


Updated: Oct 04, 2005
Document ID: 10693