Switching

Hello, we are having a problem with spanning tree, it is not blocking a port in the configuration which is causing a loop and we are getting the fallowing error on our switches. 1105089: Feb 21 22:31:34.937: %C4K_EBM-4-HOSTFLAPPING: Host 00:00:0C:9F:...

Hello Community, I have a host that can't connect to the DHCP server. It was before. Where can I start the troubleshooting?  

Hi AllWe are beginning to look at Segmentation on our Network, we are a manufacturing companyCan anyone give me some pointers, what are most people starting with when looking at Segmentation?For example, separate the OT and Devices, data centre etc?

Please kindly assist me on this, i cannot ping the switch but access and phones are working fine on it. I have been on this for the past 2 days without any result. attached is the config file. Please help me check to know where am missing it. THANKS....

Hi,I am trying to use AUTO SMARTPORTS to disable PoE on switchports connected to EXTERITY Devices (OUI = 00181C) but the macro os not executing. Below my config. Am I missing something? Thank you macro auto execute EXTERITY {if [[ $LINKUP -eq YES ]]t...

Hi allwhen configuring root guard, should I only enable this on my access ports, not my root and uplink ports ?

Hi, We have two Nexus 5548UP (sync-peers) How do I remove an interface from switch-profile? I have an error NEXUS-A(config-sync)# switch-profile F1-5548Switch-Profile started, Profile ID is 1NEXUS-A(config-sync-sp)# no interface ethernet 1/18      ...

 I have a switch 3560g that has cameras connected to the ports.Hikvision camera model.and ports are constantly changed state to down and up.How can I find out the reason?The cameras work correctly. 038509: Mar 4 09:57:45.256 ALMT: %LINEPROTO-5-UPDOWN...

So I have a weird issue since I reloaded my ASA 5540's (8.4(7)) this morning. They are in an Active/Standby failover pair and my standby ASA is no longer responding on one interface, but it works on the rest. More specifically, when I try to ping it ...

We have a stack of four C9200-48P switches.  The last two times the stack rebooted, switch one in the stack came up in rommon mode.  Consoling to that stack member and issuing the "boot" command caused it to load the IOS and config and it subsequentl...