Cisco 3750 blink port light
WebUnplugged and replugged it, still flashing green. Can't connect to it via serial (serial to USB). So unplug it, press and hold mode, and then plug it back in. After a few seconds the syst light is now full green, and I can connect via serial, but it is is random characters. After a few more seconds the syst light goes back to flashing and I can ... WebApr 29, 2024 · I have a Cisco 3750G in a LAN, I have a PoE device connected to port #16, configure as access port. The device is a Unifi Cloud Key which is powered and the lights are blinking green on the switch which shows that the port is working. Then I noticed that randomly the light on the switch for port #16 starts going from green to amber for 5-10 ...
Cisco 3750 blink port light
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WebJun 12, 2016 · i recovered the switch from sudden electricity shutdown which seems like it forgot its own Main Mac Address .more info www.seldomtuts.com
WebDec 16, 2003 · The Catalyst 3750 documentation states that ports should only blink amber if "the port is blocked by STP and is transmitting or receiving packets". Well, we have "switchport host" issued on each of the server ports with BPDU guard and BPDU filter enabled. I know that the STP port state never changes, so I know this is not the problem. WebOct 31, 2013 · The switch LEDs begin blinking after about 2 seconds. If the switch is not configured, the LEDs above the mode button turn green. You can omit this step and run …
WebSep 15, 2015 · Solved: Catalyst 3850 Beacon (Blue UID) Turn ON - Cisco Community Start a conversation Cisco Community Technology and Support Networking Switching Catalyst 3850 Beacon (Blue UID) Turn ON 35062 35 8 Catalyst 3850 Beacon (Blue UID) Turn ON Go to solution lomonaco Beginner Options 09-15-2015 04:09 PM - edited 03-08-2024 01:47 … WebApr 11, 2016 · HOW TO RESET THE CISCO 3750 TO THE BOOT SCREEN flash_ini dir flash: delete flash:private-config.text delete flash:multiple-fs delete flash: config.text boot Host Name: BB1 Enable Secret: BB1! Enable Password: BB1 Virtual Network Password: BB1 Interface Name: Vlan1 Configured IP: 192.168.1.155 Subnet mask: 255.255.0.0
WebApr 28, 2016 · This would come in handy when dealing with remote site contacts without having to talk them through pressing the mode button, stopping at stack, and then reading the ports that light up for switch identification - which can be a challenge at times. Thank you. Pat 1 person had this problem I have this problem too Labels: Other Switching …
WebJul 31, 2013 · Often, err-disabled ports behave like this. Check the output of the following command: show int status err-disable If these ports are indeed found err-disabled, you have to solve the reason why they were err-disabled, and then you can reactivate them byt shutting them down, waiting 5-10 seconds, and no shut-ting them again. Best regards, … impurity\\u0027s 7lWebWhat do all solid amber lights mean on a Cisco 3750 switch? Ask Question Asked 10 years, 5 months ago. Modified 10 years, 5 months ago. Viewed 18k times 1 Suddenly, no port lights light up any more. The only lights coming on are the status LEDs on the left of the switch, all are solid amber. Is it dead? Have tried a new power cable. impurity\u0027s 7jWebOct 21, 2009 · If you don't see anything in the console while booting try different speeds on your terminal emulator maybe someone changed the config register otherwise you will have to replace it.The 3750 as long as you are the original owner and it was registered with cisco at the time of purchase should replace it free of charge. Contact cisco on this. lithium ion battery dischargerWebMay 21, 2009 · no light - no remote connection or port in shutdown (except for 6500) solid orange - port in error disable, spanning-tree negotiation, … lithium ion battery disposal centersWebMar 25, 2008 · What's actually happening to the connection between the switch(3750) and the PC on the end of the connection when the port light is flashing. I've been upgrading 2900s to 3750 stacks and certain connections seem to continue to flash, but I don't see any issues with connectivity to the port. Any ideas? Thanks in advance. /rls impurity\u0027s 7mWebOct 31, 2013 · • Monitor the port status by using the show interfaces privileged EXEC command to check the port error-disabled, disabled, or shutdown status. Re-enable the port if necessary. • Verify that the power supply installed in the switch meets the power requirements of your connected devices. impurity\u0027s 7iWebSep 27, 2005 · Ensure you have the fiber plugged into the gbic such that light from one connects to dark on the other. Do this at both ends. Also, pull the gbics out of the switches & validate both are appropriate for the fiber type you are using. 1000-LX is for single mode fiber; 1000-SX is for multimode fiber. If you have the interface administratively shut ... impurity\\u0027s 7k