I have a Dell PC2824 managed switch. When first powered up, it runs in unmanaged mode, though the fan and manage mode lights blink as if it's trying to configure itself. With a telnet app, connected to a PC via the switch Com port, I see the following - ------------------------------------------------------------------------- ----- ------ Performing the Power-On Self Test (POST) ------ UART Channel Loopback Test..PASS Testing the System SDRAM..PASS Boot1 Checksum Test..PASS Boot2 Checksum Test..PASS Flash Image Validation Test..PASS BOOT Software Version 1.0.0.13 Built 17-Jul-2012 08:47:13 Board Type - PowerConnect 2824 PowerConnect 2824 board based on FireFox 88E6218 ARM946E-S processor 64 MByte SDRAM. I-Cache 8 KB. D-Cache 8 KB. Cache Enabled. MAC Address: d0:67:e5:96:5f:0a. Autoboot in 2 seconds - press RETURN or Esc. To abort and enter prom. Preparing to decompress. Check image for valid file. Switching to the second image. Preparing to decompress. Check image for valid file. Both images are not valid. ![]() Please download a new image. Downloading code using XMODEM. ------------------------------------------------------------------------- ----- The CLI screen stays like this for about five minutes, until the download routine times out, then the switch does a warm boot and repeats the process. Unlike other managed switches I have, the POST does not complete. Because of this, the mode switch will not allow me to change between unmanaged and managed mode - so it would be impossible to access the Web interface. Similarly, becuase the POST routine does not complete, I cannot issue CLI commands (I never get the console> prompt. There is the prom option within 2 seconds of start-up. ![]() This also offers a download software option. The prompt text above seems to indicate that the switch FW is bad and needs reloading. I have set up a Solarwinds TFTP server on the PC which I am running Hyperterminal or PuTTY on. Tghis points to a TFTP root folder which does contain the two latest firmware files - powerconnect_28xx_boot-10013.rfb and powerconnect_28xx-10045.ros With the TFTP server running, I would expect the PC2824 to collect the firmware and download/install it - but nothing seems to be happening. If I try to 'push' the FW over TFTP from Hyperterminal, it sees the files and attempts to upload to the switch, but after 10 attempts which are reported as 'Received a retry request' it times out. This whole scenario is not covered by ther PC2824 documentation or CLI commands - all of which assume that either CLI or Web configuration is working normally. There are no options in the PC2824 POST menu that allow me to tell the switch from where it should download via TFTP the config files. Neither does the documentation explain which of the two files are for which purpose or in which order they should be reloaded. Therefore I seem to be stuck in a loop in which I cannot talk to the switch to enable me to interrogate it to see what config files may already exist, or to reinstall and re set the switch. Kimi ga nozomu eien episode 1. Also, the reset password option under POST boot options as shown in the CLI documentation is missing from my switch menu. High school dxd ova special sub indo scarlet fever. The manual also refers to a special Dell set up wizard routine for the first time the switch is configured, but I don't know how to invoke this on a switch that presumably has already been configured. Any suggestions as to how to give this switch a first-birthday and get it working in managed mode again? None of the Dell documentation instructions are usable because there is no CLI prompt, no managed mode state (and thus no Web interface) and no hardware reset button. When I attempt to do download the new software with XModem the firmware (fw) completes successfully (ls20xx_Salsa-12222.ros) but the boot image fw fails (runtop_boot-101.rfb) and I. I've been working on this for two days withourt success, so I'd appreciate any pointers that anyone may be able to offer. Best regards, Adrian Redmond Channel 6 Television Denmark teknikATchannel6DOTdk. Instead of using TFTP, have you tried using the XMODEM method? The firmware download includes a PDF named 'Downloading Software'. In this document There is a seciont that details using the XMODEM option on the Startup menu. On the startup menu select option 1 for download software. This will allow you to flash the firmware via XMODEM. Ensure the emulator has protocol set to XMODEM. You will want to use the file labeled 'powerconnect_28xx-10045.ros'. This method can take an hour or more. Let us know if this works. Within a few seconds of being powered up, the PC2824 POST aborts due to lack of a valid configuration file and the unit automatically starts 'downloading using XMODEM' - but how does it know where to download from? If I have Hypertermnal open to follow the switch POST attempt, it will not accept keyboard entries. On the other hand, PuTTY will allow keyboard entried, but the utility does not inlcude any settings for an XMODEM transfer (whatever that is). Hyperterminal does have such an option, but attempts to send the.ros file using XMODEM fail, because the switch sends a 'retry request' - presumably because the switch is alreayd busy with the impossible XMODEM transfer that it has already invoked. If I try to monitor the switch with PuTTY and send the config fille via XMODEM via Hyperterminal, the utility responds that the switch is already busy with another connection, which must be closed first. It appears that the PC2824 invokes an XMODEM transfer which cannot succeed, but in doing so blocks the possibility of communicating with the switch by any utility than can send - because the switch is busy.
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