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Layer 3 Switching Software Feature and Configuration Guide
78-6235-04, Cisco IOS Release 12.0(10)W5(18)
Chapter4 Configuring Interfaces Configuring the ATM Uplink Interface (Catalyst8540)
In addition, the ATM uplink interface uses the non-configurable values shown in Table 4-5.
Initially Configuring the ATM Uplink Interface
You should configure the following properties for a newly installed ATM uplink interface:
•IP routing
•IP address
To initially configure the ATM uplink interface, perform the following steps, beginning in global
configuration mode:
Transmit clock source [no]atm clockinternal no internal (line)
Cisco DiscoveryProtocol (CDP) [no]cdp enable CDP enabled
ATM VCs per VP atm vc-per-vp 1024
Table4-4 ATM Uplink Interface Default Configuration Values (continued)
Parameter Configuration Command Default Value
Table4-5 ATM Uplink Interface Nonconfigurable Values
Parameter Value
Transmitbuffers for segmentation and reassembly
(SAR) 8192
Receive buffers for SAR 8192
Maximum VCs 8192
ATM AAL AAL5
ILMI keepalives Not supported
Command Purpose
Step1 Router(config)# ip routing Enables IP routing.
Step2 Router(config)# interface atm
slot/subslot/interface
Router(config-if)#
Enters interface configuration mode and specifies the ATM
interface to configure.
Step3 Router(config-if)# ip address
ip-address subnet-mask Assigns an IP address and subnet mask to the interface.
Step4 Router(config-if)# atm clock
internal Specifies theinternal clock for the interface. The default mode
for the clock is no internal, which is the same as the line clock.
Step5 Router(config-if)# no shutdown Enables the interface with the previous configurations.