A Catalyst 2940, 2950, 2955, 2970, 3550, 3560, 3750 or 3750 Metro Switch can experience boot errors or can constantly reboot.
If the switch does not boot properly, it can be due to one of these reasons:
If the switch is unable to load a software image located in Flash, the system boots up with a switch: prompt.
If a message that indicates an error loading flash is displayed during the system bootup, it indicates that the software image present in the Flash is corrupt or missing.
If the switch continuously reloads, the boot sequence has to be broken. Press the Mode button on the Catalyst 2950, 2970, 3550, 3560, 3750 or 3750 Metro Switch in order to do this. Un the case of the Catalyst 2955, issue a break key sequence from the keyboard in order to do this.
Complete these steps in order to resolve this issue:
Issue the dir flash: command in order to check the image in Flash.
Verify that the image is present, the file size is correct and that this is the correct image for the platform.
If a valid image is present, issue the boot flash: command in order to manually boot the switch from the image.
If a valid image is not present, issue the copy xmodem command in order to install an image to Flash from the switch: prompt.
Hi EveryoneI am facing issue on CISCO 2921 Router since last week. Router keep on rebooting automatically. Find below details of Show commands output. Appreciate if anyone can guide about the root cause of Router rebooting. There are no configuration chan...
Hello Expert,I have two cisco router in HSRP configuration.On each router I have a 4 port card.The vlans configured on the card (both primary and secondary router) are Production Telephone,Security vlan.I am to configure an use HSRP on the production vlan...
Hi Team, Is there cisco recommend RSTP to MSTP migration procedure ? I didn't find any cisco related document for this. Currently network consist of Core (6500 Series) Switches, distribution (4500 series) switches and Access (3850, 2960X an...
Hiat first i want to say that am a newbie in networking and i come from germany so my englisch is not the best.So, here is my Problem: I have a Server at home for general purpose and the home lan i share with my family.My router is a Fritzbox 7490 an...
Hello.I'm having an issue with SSH console slowness once connected into a network device on GNS3. It generally slow on any router/switch regardless of the configuration to ssh/vty lines.If using Telnet it's perfectly fine and very responsive but ssh is sl...