CHAPTER
4-1
Cisco ONS 15454 SONET/SDH ML-Series Multilayer Ethernet Card Software Feature and Configuration Guide, R4.0
78-15224-02
4
Configuring Interfaces
This chapter describes the basic interface configuration for the ML-Series card to help you get your
ML-Series card up and running. For more information about the Cisco IOS commands used in this
chapter, refer to the Cisco IOS Command Reference publication.
This chapter contains the following major sections:
• Understanding the Interface Configuration, page 4-1
• Instructions for Configuring Interfaces, page 4-3
• Understanding Interfaces, page 4-4
• POS on the ML-Series card, page 4-8
• Configuring the ML-Series POS Interfaces, page 4-12
• Common ML-Series POS Configurations, page 4-18
Note Complete the initial configuration of your ML-Series card before proceeding with configuring
interfaces.
Understanding the Interface Configuration
The main function of the ML-Series card is to relay packets from one data link to another. Consequently,
you must configure the characteristics of the interfaces, which receive and send packets. Interface
characteristics include, but are not limited to, IP address, address of the port, data encapsulation method,
and media type.
Many features are enabled on a per-interface basis. Interface configuration mode contains commands
that modify the interface operation (for example, of an Ethernet port). When you enter the interface
command, you must specify the interface type and number.
The following general guidelines apply to all physical and virtual interface configuration processes:
• All interfaces have a name which is comprised of an interface type (word) and a Port ID (number).
For example, FastEthernet 2.
• Configure each interface with a bridge-group or IP address and IP subnet mask.
• VLANs are supported through the use of subinterfaces. The subinterface is a logical interface
configured separately from the associated physical interface.
• Each physical interface, and the internal Packet-over-SONET/SDH (POS) interfaces, have an
assigned MAC address.
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