Cisco CX-AIP-TM Installation And Configuration Manual page 39

The vp filter mechanism allows a way of specifying which VPI (or range of VPIs) will be used for
AAL3/4 processing, all other VPIs mapping to AAL5 processing. In the case where only AAL5
processing is desired, the vp filter should be set to the default VPI of 0x7B (hexadecimal). In that
case, AAL5 processing will be performed on the first 127 VPIs. Currently you can only configure
one VPI for all the AAL3/4 packets.
Examples follow:
Router(config)# atm vp-filter 1
All incoming cells with VPI = 1 will be reassembled via AAL3/4 processing, which is supported
with Cisco IOS Release 10.2 and later.
Router(config)# atm vp-filter 0
All incoming cells with VPI = 0 will be reassembled via AAL3/4 processing. All other cells will be
reassembled via AAL5 processing.
Mapping a Protocol Address to a PVC
The Cisco IOS software supports a mapping scheme that identifies the ATM address of remote
hosts/routers. This address can be specified either as a virtual circuit descriptor (VCD) for a PVC or
a network service access point (NSAP) address for SVC operation.
Enter mapping commands as groups; multiple map entries can exist in one map list. First create a
map list, then associate the list with an interface.
Enter the map-list name command; then enter the protocol, protocol address, and other variables, as
follows:
Router(config)# map-list name
protocol protocol address atm-vc vcd | atm-nsap nsap [broadcast]
The broadcast keyword specifies that this map entry receives the corresponding protocol broadcast
requests to the interface (for example, any network routing protocol updates). If you do not specify
broadcast, the ATM software is prevented from sending routing protocol updates to the remote
hosts.
After you create the map list, specify the ATM interface to which it applies with the interface
command, as follows:
Router(config)# interface atm slot/port
Associate the map list to an interface with the following command:
Router(config-if)# map-group name
You can create multiple map lists, but only one map list can be associated with an interface. Different
map lists can be associated with different interfaces.
Following is an example of mapping a list to an interface:
interface atm4/0
ip address 131.108.168.110 255.255.255.0
map-group atm
atm rate-queue 1 100
atm pvc 1 0 8 aal5snap
atm pvc 2 0 9 aal5mux decnet
decnet cost 1
!
map-list atm
ip 131.108.168.112 atm-vc 1 broadcast
decnet 10.2 atm-vc 2 broadcast
Asynchronous Transfer Mode Interface Processor (AIP) Installation and Configuration
Configuring the AIP
39