13-6
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 13
Configuring IP over ATM
Configuring Classical IP over ATM
In a PVC environment, configure the ATM InARP mechanism by performing the following steps,
beginning in global configuration mode:
Repeat these tasks for each PVC you want to create.
The
inarp
minutes
interval specifies how often Inverse ARP datagrams are sent on this virtual circuit.
The default value is 15 minutes.
Note
The ATM ARP and ATM InARP mechanisms work with IP only. All other protocols require
map-list
command entries to operate.
Example
The following example shows how to configure an IP-over-ATM interface on interface ATM 0, using a
PVC with AAL5SNAP encapsulation, inverse ARP set to ten minutes, VPI = 0, and VCI = 100:
Switch(config)#
interface atm 0
Switch(config-if)#
ip address 11.11.11.11 255.255.255.0
Switch(config-if)#
atm pvc 0 100 interface atm 0/0/0 50 100 encap aal5snap inarp 10
Displaying the IP-over-ATM Interface Configuration
To show the IP-over-ATM interface configuration, use the following EXEC command:
Command
Purpose
Step 1
Switch(config)#
interface atm 0
Switch(config-if)#
or
Switch(config)#
interface atm
card
/
subcard
/
port
Switch(config-if)#
Selects the route processor interface.
If you are using the optional ATM router module,
specifies the ATM interface number.
Step 2
Switch(config-if)#
ip address
ip-address mask
Specifies the IP address of the interface.
Step 3
Switch(config-if)#
atm pvc
[
0
|
2
]
vci
interface
atm
card
/
subcard
/
port vpi vci
encap
[
aal5mux
|
aal5snap
] [
inarp
minutes
]
Creates a PVC and enables Inverse ARP. The VPI
value on interface ATM 0 is 0. The VPI value on
an ATM router module interface is 2.
Command
Purpose
show atm map
Shows the ATM interface ARP configuration.