H3C MSR 20/30/50 Series Routers User Manual Table of Contents5.4 Upgrading Application Program Through Serial Interface ............................................... 5-135.5 Upgrading Application Program Through Ethernet Interface .......................................... 5-145.5.1 Configuring Ethernet Parameters.......................................................................... 5-145.5.2 Upgrading Application Program Through Ethernet Interface................................ 5-155.6 Maintaining Application Program and Configuring Through Command Lines ................ 5-185.6.1 Maintaining the Router with TFTP Server............................................................. 5-185.6.2 Maintaining the Router with FTP Server ............................................................... 5-205.7 Maintaining Application Program and Configuration File ................................................ 5-235.8 Dealing with Router Password Loss ................................................................................ 5-265.8.1 User Password Loss ............................................................................................. 5-265.8.2 BootROM Password Loss ..................................................................................... 5-275.8.3 Super Password Loss ........................................................................................... 5-285.9 Backing up and Restoring BootROM............................................................................... 5-28Chapter 6 Slot Position of H3C MSR Series Routers................................................................. 6-16.1 Slot Position of H3C MSR 20 Series Routers.................................................................... 6-16.2 Slot Position of H3C MSR 30 Series Routers.................................................................... 6-16.3 Slot Position of H3C MSR 50 Series Routers.................................................................... 6-2ii