3-18 Cisco 4000 Series Hardware Installation and Maintenance
Making Network Connections
Step 5 Create the Permanent Virtual Circuits (PVCs). A PVC requires the whole path from source
to destination to be setup manually. If there is a switch in the path, it has to be properly
configured also. The PVC command has the format atm pvc vc-id vpi vci encap [peak-rate
sustained-rate burst-size]:
Router(config-if)# atm pvc 1 1 32 aal5snap
Router(config-if)# atm pvc 2 1 33 aal5snap
Note VCI values 0-31 are reserved by CCITT and the ATM forum.
Step 6 Assign the appropriate map-list to the interface:
Router(config-map-list)# map-group list1
Step 7 Enable the interface:
Router(config-if)# no shut
Step 8 Create the mapping of protocol addresses to PVCs. Map-lists are used to assign protocol
addresses to VCs:
Router(config-if)# map-list list1
Router(config-map-list)# ip 1.1.1.2 atm-vc 1 broadcast
Router(config-map-list)# ip 1.1.1.3 atm-vc 2 broadcast
Step 9 To complete the configuration, enter Ctrl-Z.
Step 10 Write the new configuration to memory:
Router# write memory
Step 11 Exit the privileged level and return to the user level:
Router# disable
The following example shows a basic configuration using using SVCs.
Step 1 At the priviledged-mode prompt, enter the configuration mode and specify that the console
terminal will be the source of the configuration subcommands:
Router# conf t
Step 2 Specify the unit to configure by entering the subcommand int, followed by atm and the unit
number. The example that follows is for the ATM unit 0:
Router(config)# int atm 0
Step 3 Specify the framing type (for SONET interfaces, STS-3c is the default):
Router(config-if)#atm sonet stm-1
Step 4 Assign protocol addresses to the interface:
Router(config-if)# ip address 2.1.1.1 255.255.255.0
Step 5 Create the signaling Permanent Virtual Circuit (PVC), required by the signaling software
to communicate with the switch in order to dynamically setup SVCs. The signalling virtual
channel uses VPI 0 and VCI 5.
Router(config-if)# atm pvc 1 0 5 qsaal
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