ii
Powering on the Router········································································································································· 36
Startup Process······················································································································································· 37
Configuration Fundamentals········································································································································· 38
Basic Configuration Procedures··························································································································· 38
Command Line Interface······································································································································· 38
Arranging Slots and Numbering Interfaces········································································································ 39
Software Maintenance···············································································································································41
Introduction ····································································································································································· 41
Files········································································································································································· 41
Software Maintenance Methods·························································································································· 43
Maintaining Application Program and Configuration Through Command Lines···················································· 44
Maintaining the Router Through TFTP Server ····································································································· 44
Maintaining the Router Through FTP Server ······································································································· 47
BootWare Menu····························································································································································· 50
Main BootWare Menu·········································································································································· 50
BootWare Submenus ············································································································································ 52
Upgrading an Application Program Through an Ethernet Interface········································································· 55
Configuring Ethernet Interface Parameters ········································································································· 55
Upgrading Procedure ··········································································································································· 56
Upgrading BootWare Through Ethernet Interface······································································································ 58
Upgrading BootWare Through Serial Interface·········································································································· 58
XModem Protocol Overview ································································································································ 58
Modifying Serial Interface Parameters················································································································ 59
Upgrading BootWare··········································································································································· 60
Upgrading an Application Program through a Serial Interface················································································ 62
Maintaining Application and Configuration Files ······································································································ 62
Dealing with Password Loss·········································································································································· 64
User Password Loss ··············································································································································· 64
BootWare Password Loss ····································································································································· 65
Super Password Loss············································································································································· 65
Backing Up and Restoring BootWare·························································································································· 66
Hardware Maintenance ············································································································································67
Preparing Tools ······························································································································································ 67
Internal Structure····························································································································································· 67
Removing/Installing PSUs ············································································································································· 68
Removing a PSU ···················································································································································· 68
Installing a PSU······················································································································································ 69
Removing/Installing the Fan Module ··························································································································· 69
Removing the Fan Module···································································································································· 69
Installing the Fan Module ····································································································································· 70
Removing/Installing the MPUF ····································································································································· 70
Removing the MPUF ·············································································································································· 70
Installing the MPUF················································································································································ 71
Removing/Installing MSCA··········································································································································· 71
Removing MSCA ··················································································································································· 71
Installing MSCA····················································································································································· 71
Installing/Removing CF Card ······································································································································· 72
CF Card Structure·················································································································································· 72
Installing CF Card ················································································································································· 72
Removing CF Card················································································································································ 72
Replacing Memory Bar·················································································································································· 73
Memory Bar Structure ··········································································································································· 74
Memory Bar Slot···················································································································································· 74