config net [ip add of tftp serv]: load config info from TFTP server, Config t: console / telnet (config from my term)

Catalyst 5000 : to config port, type slot/port (e 4/2 for Ethernet, card 4, port 2), Catalyst 7000 / 7500 VIP (versatile int processor cards): type slot/port adapter/port; e 2/0/1, 3 rd Enet vip card3, first port 0, 2 nd Enet Int.

Auto Install : config router autoly and remotely. New router acts as BootP work stn & gets IP from existing router acts as BootP or RARP server, connects to TFTP server, gets network-config, hostname-config/router-config files.

BootP server: provides (by TFTP) stn.IP add, server IP add and the name of the file tobe loaded and booted.

Modes: User EXEC : After log in, you are automly in this mode, basic tests, temp term setup, conn to remote devices (router>), logout to exit, Privileged EXEC: Set OS params, config, debug,(router#) Quit/Exit to exec mode, ROM monitor: Occurs when no cisco IOS image found / boot interrupt (rommon>), Set up: occurs on first switch on, RxBoot : reboot from ext (router), Global config Mode: router(config)> commands affects whole system, exit/end to pre mode

Interface Config mode: router(config-if)# comm for config single int.

Editing: Ctrl+A-beging of line, Ctrl+E-end of line, Ctrl+F(R arrow)-move fwd 1 char, Ctrl+B(L arrow)- back 1 char, Ctrl+P(U arow)-scroll/Rpt prev comm, Ctrl+N(D arow)-recent comm recall, Esc+F-move fwd 1 word, Esc+B-back 1 word.

R>terminal editing / terminal no editing : advanced editing features on / off. R> enable / disable : privileged mode on / off
R>sh history-sh comm buffer, R>term history size- set comm buffer size, Tab: Completes comm entry,
Passwords: config t, Enable secret x, enable password x, line vty 0, login, pw x; line aux 0, login, pw x; line con 0, login, pw x; Banner: config t, banner motd #, xxx # ; Hostname: config t, hostname [newhostname]
Shutting down : config t, # int s0, # shutdown (Admntly down) # no shut down (Turn on)

DTE/DCE Cable: router use synch comm, needs clk, clock rate on DCE.+ specify bandwidth (for IGRP), Config t, int s0, clock rate 56000, bandwidth 56. def clk rate-T1, R# show controllers s0- Identifies serial port cable as DTE or DCE cable.

CSU/DSU : Chl svc unit/Data svc unit. Handles clocking on serial ports (WAN links), not used by Cisco router.
Token Ring Speed : # int token ring 2/0, # early token release, # ring-speed 16 (4-16 mb),

Media type : # int e1, # media type 10baseT, Clock set: R# clock set 11: 02: 01 04 August 1999

Config Comm: RouterR# sh startup-config/config: contents of NVRAM, sh running-config: contents of RAM,

R# erase startup-config (write erase)- erases NVRAM, starts initial config dialog, R# Setup: starts initial config dialog,

R# write term-sh run config, write mem- copy run start, config mem- copy start run, config net [ip ad of tftp ser]-lod config frm tftp, write network/R# copy run tftp (backup, ram>tftp serv), copy tftp run (restore), R# reload: lod startup confi to mem,

IOS Comm: R # copy flash tftp (ios backUp), # copy tftp flash (ios restore), Fallback-gives alternative IOS loading booting sources: config t, # boot system flash [ios_filename], boot system TFTP [ios_filename] [ TFTP_ip add], boot system ROM

R# erase- erases flash, # delete- (if multi flash), if ext flash card # delete-only marks the IOS, # squeeze-deletes IOS.

R# sh flash-flash mem stat, all IOSs file name, # sh version-sh current IOS file (if multi flash), hw config, sw ver, Register setting, boot images, sh process: active process, cpu utilzn, sh mem: mem allctn stat, sh stacks- sh reason for crash/reboot,

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