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Cisco IOS Configuration Fundamentals Command Reference April 2010 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 Text Part Number: THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. 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All other trademarks mentioned in this document or website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1002R) Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental. Cisco IOS Configuration Fundamentals Command Reference © 2010 Cisco Systems, Inc. All rights reserved. CONTENTS About Cisco IOS Software Documentation Documentation Objectives Audience xxi xxi xxi Documentation Conventions xxi Typographic Conventions xxii Command Syntax Conventions xxii Software Conventions xxiii Reader Alert Conventions xxiii Documentation Organization xxiii Cisco IOS Documentation Set xxiv Cisco IOS Documentation on Cisco.com xxiv Configuration Guides, Command References, and Supplementary Resources Additional Resources and Documentation Feedback xxxi Using the Command-Line Interface in Cisco IOS Software Initially Configuring a Device Saving Changes to a Configuration Introduction xxxiii xxxiii Using the CLI xxxiv Understanding Command Modes xxxiv Using the Interactive Help Feature xxxvii Understanding Command Syntax xxxviii Understanding Enable and Enable Secret Passwords Using the Command History Feature xl Abbreviating Commands xli Using Aliases for CLI Commands xli Using the no and default Forms of Commands xlii Using the debug Command xlii Filtering Output Using Output Modifiers xlii Understanding CLI Error Messages xliii Additional Information xxv xxxix xliv xliv CF-1 Cisco IOS IFS Command Syntax CF-2 Obtaining Documentation, Obtaining Support, and Security Guidelines CF-3 Cisco IOS Configuration Fundamentals Command Reference April 2010 iii Contents Configuration Fundamentals Commands activation-character alias CF-6 CF-7 archive CF-11 archive config CF-12 archive log config persistent save archive tar attach CF-18 CF-20 autobaud CF-23 auto-sync CF-24 autoupgrade disk-cleanup autoupgrade ida url banner exec CF-26 CF-27 autoupgrade status email CF-28 CF-29 banner incoming CF-31 banner login CF-33 banner motd CF-35 banner slip-ppp CF-37 CF-39 boot bootldr CF-43 boot bootstrap boot config boot host CF-45 CF-47 CF-50 boot network boot system CF-53 CF-56 boot-end-marker CF-62 boot-start-marker cd CF-14 CF-15 async-bootp boot CF-5 CF-64 CF-66 clear archive log config CF-68 clear catalyst6000 traffic-meter clear configuration lock CF-70 clear ip http client cache clear logging CF-69 CF-72 CF-73 clear logging system CF-74 Cisco IOS Configuration Fundamentals Command Reference iv April 2010 Contents clear logging xml CF-76 clear mls statistics CF-77 clear parser cache CF-78 clear platform netint CF-79 clear processes interrupt mask clear tcp CF-81 clear vlan counters clock CF-80 CF-83 CF-84 clock initialize nvram config-register CF-86 CF-87 configuration mode exclusive configure confirm CF-95 configure memory CF-97 configure network CF-99 configure overwrite-network configure replace CF-105 configure terminal CF-107 CF-109 continue (ROM monitor) copy CF-100 CF-101 configure revert confreg CF-89 CF-111 CF-112 copy erase flash copy http:// CF-130 CF-131 copy https:// CF-132 copy logging system CF-133 copy xmodem: CF-135 copy ymodem: CF-136 copy /noverify CF-137 databits CF-141 data-character-bits CF-143 default-value exec-character-bits default-value special-character-bits define interface-range delete diag CF-144 CF-145 CF-146 CF-148 CF-150 Cisco IOS Configuration Fundamentals Command Reference April 2010 v Contents diagnostic bootup level diagnostic cns CF-153 CF-155 diagnostic event-log size diagnostic level CF-157 CF-158 diagnostic monitor CF-160 diagnostic ondemand CF-164 diagnostic schedule test diagnostic start CF-169 diagnostic stop CF-173 dir CF-175 disable CF-177 disconnect-character dispatch-character CF-178 CF-179 dispatch-machine CF-181 dispatch-timeout do CF-166 CF-183 CF-185 downward-compatible-config editing CF-188 enable CF-191 end CF-187 CF-194 environment-monitor shutdown temperature environment temperature-controlled erase CF-196 CF-197 erase bootflash CF-200 errdisable detect cause errdisable recovery escape-character exec CF-195 CF-201 CF-203 CF-205 CF-207 exec-banner CF-208 exec-character-bits exec-timeout CF-212 execute-on CF-213 exit (EXEC) CF-216 exit (global) file prompt CF-210 CF-217 CF-218 Cisco IOS Configuration Fundamentals Command Reference vi April 2010 Contents file verify auto format fsck CF-221 CF-225 full-help help CF-219 CF-231 CF-233 hidekeys CF-235 history CF-237 history size CF-239 hold-character hostname CF-240 CF-241 hw-module reset CF-243 hw-module shutdown insecure CF-245 international CF-246 ip bootp server ip finger CF-244 CF-247 CF-249 ip ftp passive CF-251 ip ftp password CF-252 ip ftp source-interface ip ftp username ip rarp-server CF-253 CF-255 CF-256 ip rcmd domain-lookup ip rcmd rcp-enable CF-258 CF-260 ip rcmd remote-host CF-261 ip rcmd remote-username ip rcmd rsh-enable CF-264 CF-266 ip rcmd source-interface ip telnet source-interface ip tftp source-interface CF-267 CF-269 CF-270 ip wccp web-cache accelerated length CF-274 load-interval location lock CF-272 CF-275 CF-277 CF-278 lockable CF-280 Cisco IOS Configuration Fundamentals Command Reference April 2010 vii Contents log config CF-281 logging enable CF-282 logging event bundle-status CF-283 logging event link-status (global configuration) CF-285 logging event link-status (interface configuration) logging event subif-link-status logging event trunk-status CF-287 CF-289 CF-291 logging ip access-list cache (global configuration) CF-292 logging ip access-list cache (interface configuration) logging persistent (config-archive-log-cfg) CF-296 logging persistent reload (config-archive-log-cfg) logging size CF-298 CF-299 logging synchronous logging system logout CF-294 CF-301 CF-304 CF-305 logout-warning CF-306 macro (global configuration) CF-307 macro (interface configuration) maximum CF-309 CF-311 memory free low-watermark memory lite CF-313 CF-315 memory reserve critical memory sanity CF-318 memory scan CF-319 memory-size iomem menu (EXEC) CF-316 CF-320 CF-322 menu single-space menu clear-screen menu command menu default CF-325 CF-327 CF-329 menu line-mode CF-330 menu options CF-332 menu prompt CF-333 menu status-line menu text CF-324 CF-334 CF-335 Cisco IOS Configuration Fundamentals Command Reference viii April 2010 Contents menu title CF-337 microcode (12000) CF-339 microcode (7000/7500) microcode (7200) CF-341 CF-343 microcode reload (12000) CF-345 microcode reload (7000/7500) microcode reload (7200) mkdir CF-348 CF-349 mkdir disk0: mode CF-347 CF-351 CF-352 CF-355 monitor event-trace (EXEC) CF-356 monitor event-trace (global) CF-359 monitor event-trace dump-traces monitor permit-list CF-362 CF-363 monitor session egress replication-mode monitor session type mop device-code CF-367 CF-375 mop retransmit-timer mop retries more CF-376 CF-377 CF-378 more begin CF-381 more exclude CF-383 more include CF-385 more flh:logfile motd-banner CF-387 CF-389 name-connection no menu notify parity CF-391 CF-392 CF-393 notify syslog padding CF-365 CF-394 CF-396 CF-397 parser cache CF-399 parser command serializer parser config cache interface CF-400 CF-401 Cisco IOS Configuration Fundamentals Command Reference April 2010 ix Contents parser config partition partition CF-403 CF-405 path (archive configuration) periodic ping CF-407 CF-411 CF-414 ping (privileged) ping ip CF-418 CF-421 ping vrf CF-425 platform shell CF-428 power enable CF-429 power redundancy-mode printer CF-431 private CF-433 privilege CF-430 CF-434 process cpu statistics limit entry-percentage process cpu threshold type process-max-time prompt pwd CF-439 CF-440 CF-442 CF-443 CF-445 refuse-message reload CF-446 CF-447 remote command CF-451 remote login CF-453 remote-span CF-455 rename CF-456 request platform software package describe file request platform software package expand file CF-457 CF-463 request platform software package install commit request platform software package install file CF-466 CF-468 request platform software package install rollback CF-477 request platform software package install snapshot request platform software process release request platform software system shell CF-481 CF-483 request platform software shell session output format request platform software vty attach CF-479 CF-484 CF-487 Cisco IOS Configuration Fundamentals Command Reference x April 2010