RSSAll Entries in the "Switch General" Category

Difference between Stacking and Clustering on Cisco switches

Stacking Vs Clustering I covered the difference between Stacking and Clustering on Cisco Switches and it also applicable to all other vendor switches.   S.No Stacking Clustering 1 Stacking is a dedicated high performance but interconnecting desktop switches in single wiring closet, single point of authentication and management of desktop switches (single IP address) Clustering is a logical collection of switches independent of hardware interconnect method, single point of authentication and management with no physical boundary. 2 It isolated to the single wiring closet It extends beyond  wiring closet 3 It will not support for the legacy systems. It will support for the legacy systems. 4 It will support limited number of switches for stack It will support 16 switches per cluster 5 No flexibility in stacking design Admin chooses the cluster members. 6 Easily Scalable Not easily scalable as compared to stacking 7 Single IP address for management It […]

Difference between config.text and startup-config in Cisco Switch

Probably every one thinking  the config.text file contains the password definitions and Startup-config file contains the startup configuration, and config.text file saved in flash but the startup-config is saved in NVRAM. Above saved locations correct but the config.text file and startup-config are the same files with exactly same size.  I uploaded both config.text and startup-config to my TFTP server and tried to find differences between them. Both exactly the same and there no difference. Find the Config.text on Cisco Switch  Cisco-Switch#sh flash Directory of flash:/ 2 -rwx 3722814 Mar 07 1993 19:27:13 +00:00 c2950-i6k2l2q4-mz.121-22.EA14.bin 4 -rwx 1048 Mar 01 1993 01:41:49 +00:00 multiple-fs 5 -rwx 314 Mar 07 1993 19:34:02 +00:00 env_vars 6 -rwx 4635 Mar 01 1993 01:41:49 +00:00 config.text 7 drwx 832 Mar 01 1993 00:04:15 +00:00 html 21 -rwx 109 Mar 01 1993 00:04:17 +00:00 info 22 -rwx 109 Mar 01 1993 00:04:17 +00:00 info.ver 23 -rwx 45 Mar 01 1993 […]

How to Reset a Cisco Catalyst 3550 / 3560 Switch to Factory Defaults

To reset the Cisco Catalyst 3550 / 3560 Switch to factory defaults, you need access to the Cisco Catalyst Switch console through either a physical console or a Telnet connection. You also need the console/enable passwords. If you forget the console and enable password of your Cisco Catalyst Switch, you cannot reset the Cisco Catalyst Switch configuration to factory default to reset the password. In this case, you need to follow the password recovery procedures for your switch. Refer to this document for steps to recover the passwords on your Catalyst switches. Cisco Catalyst Switches running Cisco IOS have a running configuration file and a startup configuration file. The RAM stores the running configuration, and the NVRAM stores the startup configuration. When you make a configuration change to a switch running Cisco IOS Software, the change becomes part of the running configuration. You must save the configuration changes to the startup […]

Recovery From Corrupt or Missing IOS on Cisco Catalyst 2900XL Switch

In this post I covered how to recover Cisco Catalyst Switch from corrupt or missing software IOS image. We can confirm that there is boot IOS image problem when we are getting below errors from Cisco Catalyst Switch: · The switch is in a continuous reboot. · The switch displays the switch: prompt. · The error loading flash: message appears. The error loading IOS from flash: on Cisco Switch The switch: prompt indicates that the switch has not booted completely and requires the user to complete the boot process. The error loading  flash:<image> message indicates that the switch failed to load an image because of a corrupt or missing image. The corrupt or missing image can be the result of a failed download. In this case, the image has a bad checksum or a failed software upgrade, and the upgrade procedure was not followed properly. There is the possibility that […]