[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] backbones backingup/restoring router configuration files 2nd 3rd 4th 5th backups upgrading IOS software and 2nd 3rd 4th 5th bandwidth routing protocols and banner motd command 2nd binary notation (IP addressing) 2nd 3rd Bits PUDs bridges compared to routers compared to switches CRC and 2nd MAC addresses principles of operation 2nd 3rd root scability problems bridging loops preventing overview 2nd STP 2nd 3rd broadcast storm buffer management TCP bus topology 2nd 3rd 4th compared to Token Ring |