Switching

I am a new network support person with a  little more than a year in my current position. Where I work, I have several (qty. 10) older switches to replace. They are models C2960, IE-3000, and C3560 devices. I will not be replacing them all at one tim...

does anyone know that,if two switches that already have their own vlan ID settings, will the vlan still work normally if switches are trunked together? sorry for the dumb question,just curious about how the conflict between two switches' vlan setting...

Update : i reloaded my Cisco C9500 and it solved my issue. It's a bug with the C9500 https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvs14641?rfs=iqvred. Hello, currently i have a Cisco C9500-48Y4C with several Cisco C9200L-48P-4X standalone or in st...

Hi,I would like to monitor the access to a cisco switch by sending an SNMP trap for both logon failure and success syslog events, but seems that the trap is not generated.This is my configuration:login block-for 15 attempts 15 within 60login on-failu...

Hi All, I have several IE3x00 switches in our network and since upgrading to a smart licensing mandatory version, I'm wondering how to get the license for this IE3x00 on my smart portal?With the 3650 and 3850 you have the DLC process, the license for...

各位大神，有人遇到4500X通过SNMP无法获取到CPU和内存信息的情况吗？几台4500X都是这种情况，其他交换机路由器没有这种问题!

Hi,I have a switch WS-C3550-24  where  the current running IOS  image is  c3550-i9q3l2-mz.121-11.EA1.bin. I need to upgrade the switch with latest image. since the image version 12.1 is deffered one. Pls suggest which image version and feature can be...

Hi, I have Cisco ASR 1001 router at my hub and we have Cisco 809g at remote sites. The remote side routers have Point to Point IPSEC tunnel with the Hub Router. whenever i need to make some small changes in all routers i have to login them one by one...

Hello everybody, I made the update of C2960 24 port and 8 port model switches with the .bin fileI noticed on the internet that this installation does not include the web interface,it is necessary to have the .tar file to obtain this web interface.Is ...

Dears,  I have Cisco 4507r switch, and i cannot login to admin because admin password is lost. I tried to enter the rommon mode as stated in the link below but after step 3 the supervisor module go to standby mode and i was not enable to proceed:  St...

I need run LACP with Partner switch from two interface with Ether-Channel from CiscoA and CiscoB which running IRF but when plugged the cable found one interface goes down with error message :*Nov 22 07:08:19.410: FEC: pagp_switch_hotstandby: for agp...

My switch supports "Energy Detect" in Green Ethernet settings. I don't want to waste power, and the documentation doesn't mention any drawbacks, so I have enabled it and everything works fine (except that the router sometimes resets Energy Detect at ...

We use Catalyst 2960X switches running 802.1X at our branch locations. With devices that idle for long periods of time, like a printer, we typically add "authentication control-direction in" to the configuration to get around them showing as unauthor...

Hello, I see that 'arp request' frames include both the MAC & IP addresses of the sender. Since the arp request is a broadcast, do all the hosts connected to the LAN/VLAN update their arp tables with both the IP & MAC addresses of the sending arp req...