CHAPTER
18-1
ATM Switch Router Software Configuration Guide
OL-7396-01
18
Configuring Interfaces
This chapter describes the steps required to configure the physical interface s on the ATM switch router.
Your switch is configured as specified in your order and is ready for installation and startup when it
leaves the factory.
Note This chapter provides advanced configuration instructions for the Catalyst8540 MSR,
Catalyst 8510MSR, and LightStream 1010 ATM switch routers. For complete descriptions of the
commands mentioned in this chapter, refer to the ATMSwitch Router Command Reference publication.
For hardware installation and cabling instructions, refer to the ATMand Layer 3 Port Adapter and
Interface Module Installation Guide.
Each port on the interface module or interface module physical interface can be configured to support
the following clocking options:
Self-timing based on a stratum 4 level clock
Loop timing from the received data stream—ideal for public network connections
Timing synchronized to a selected master clock port; required to distribute a single clock across a
network
The plug-and-play mechanisms of the ATM switch router allow it to come up automatically. All
configuration information for interface modules can be saved between hot swaps and switch router
reboots. The switch router automatically discovers interface types and eliminates mandatory manual
configuration.
When you upgrade your system, add components, or customize the initial configuration, see th e
following sections:
Configuring 25-Mbps Interfaces (Catalyst 8510 MSR and LightStream 1010) , page 18-2
Configuring 155-Mbps SM, MM, and UTP Interfaces, page 18-3
Configuring OC-3c MMF Interfaces (Catalyst 8540 MSR), page 18-5
Configuring 622-Mbps SM and MM Interfaces, page 18-6
Configuring OC-12c SM and MM Interfaces (Catalyst 8540 MSR), page 18-9
Configuring OC-48c SM and MM Interfaces (Catalyst 8540 MSR), page 18-11
Configuring DS3 and E3 Interfaces, page 18-13
Configuring T1/E1 Trunk Interfaces, page 18-15
Troubleshooting the Interface Configuration, page 18-17