Configuring Logical Interface Properties

For a physical interface device to function, you must configure at least one logical interface on that device. For each logical interface, you must specify the protocol family that the interface supports. You can also configure other logical interface properties. These vary by Physical Interface Card (PIC) and encapsulation type, but include the IP address of the interface, and whether the interface supports multicast traffic, data-link connection identifiers (DLCIs), virtual channel identifiers (VCIs) and virtual path identifiers (VPIs), and traffic shaping.

This chapter describes the configuration of logical interface properties:

• Logical Interfaces Configuration Statements
• Logical Interfaces Statements List
• Specifying the Logical Interface Number
• Configuring Logical System Interface Properties
• Adding a Logical Unit Description to the Configuration
• Configuring a Point-to-Point Connection
• Configuring a Multipoint Connection
• Configuring Accounting for the Logical Interface
• Configuring the Interface Bandwidth
• Enabling or Disabling SNMP Notifications on Logical Interfaces
• Configuring Interface Encapsulation
• Configuring the PPP Restart Timers
• Configuring the PPP Clear Loop Detected Timer
• Configuring PPP CHAP Authentication
• Configuring PPP PAP Authentication
• Configuring Dynamic Call Admission Control
• Disabling a Logical Interface

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