Allied Telesis AR400 Series Router - Manual (Page 59)

Physical and Layer 2 Interfaces 59
Software Release 2.5.2
C613-02034-00 REV A
Chapter 5
Physical and Layer 2 Interfaces
This Chapter
This chapter introduces the physical and logical interfaces available on the base
unit router and the optional interfaces available as expansion options for the
PIC bay. Topics covered are:
■ “Interfaces” on page 60
■ “Naming Interfaces” on page 61
■ “Ethernet Ports” on page 62
■ “Asynchronous Port” on page 62
■ “Synchronous Ports (AR410 only)” on page 64
■ “Switch Ports” on page 64
■ “Virtual LANs” on page 67
■ “Point to Point Protocol (PPP)” on page 68
■ “Frame Relay (AR410 only)” on page 69
■ “Integrated Services Digital Network (ISDN) (AR410 only)” on page 72
■ “Configuring ISDN (AR410 only)” on page 74
■ “Installing Port Interface Cards (PICs) (AR410 only)” on page 81
Once you have configured the Layer 2 interfaces, you can configure a Layer 3
protocol to route traffic between these interfaces. A simple network overview
showing the relationship between physical interfaces, data link protocols, and
network routing protocols is shown in Figure 7 on page 60.