CyberSWITCH CSX400 and CSX400-DC Installation GuidevContentsCHAPTER 1 INTRODUCTIONRelated Documentation ...................................................................................1-1How to Use This Guide ....................................................................................1-2Document Conventions ...................................................................................1-3Getting Help ......................................................................................................1-4CHAPTER 2 ABOUT THE CSX400CSX400 Hardware.............................................................................................2-1WAN Connection........................................................................................2-1Ethernet LAN Connection .........................................................................2-3Remote Management Capabilities ..................................................................2-3Optional Features.............................................................................................2-4CSX400 Firmware Support ..............................................................................2-4IEEE 802.3 Ethernet ...................................................................................2-4WAN Protocols ...........................................................................................2-4Firmware Data Compression ....................................................................2-5Inverse Multiplexing (IMUX) ......................................................................2-6HDLC ...........................................................................................................2-6DHCP and NAT ...........................................................................................2-7Frame Relay Protocol ................................................................................2-8Point-to-Point Protocol (PPP) ...................................................................2-9PAP and CHAP Security ............................................................................2-9LQM ...........................................................................................................2-10Multilink Protocol .....................................................................................2-10ISDN ..........................................................................................................2-10ISDN Back-up ...........................................................................................2-11The IP-OSPF Routing Protocol ...............................................................2-12IP-OSPF Hierarchy ...................................................................................2-12HDSL .........................................................................................................2-14