Switching

Hey Guys,going to Upgrade the IOS Version on a bunch of Cisco ME-3600X Switches soon.They haven't been upgraded in a while, so I just wanted to ask for some experience in the field.Will be going from 15.4(3)S2 to 15.6(2)SP8.The fact that two images d...

Hi all ,I am newbie learning networking I have more than 40 switches  using PVST and make core-switch as ROOTSo, how can I verify STP status to make sure no any "loop" on my network   guide me please. because sometimes when rebooted some switchs  I w...

Dear Friends, Happy New Year ! This is my 1st post as I need your help/suggestion .Unable to connect Cisco switch Switch via Putty using USB Console cable (Putty is Blank)I'm using a USB Console cable (with no converter) one end of cable is USB other...

I have a Cisco C2960 in production which was compromised. The switch has been pulled and I'm trying to determine if the IOS image was tampered with. Since the switch is End-of-Life / End-of-Support, I'm unable to get from Cisco what the hash is to va...

Hello I have some questions about C2960X stacking.  I am running C9300, C2960X as a form of stacking. (two switches each are used for stacking) Unlike C9300 switches, when I rebooted the C2960X master switch for redundancy test, Packet loss happened ...

Hello all. We ran a DDOS scenario in class today. One port of a 2960 (100mb full duplex) hosted a simple web server with about 3 mb of graphics. Private network - no internet connectivity.  We pointed about 30 PC's at the IP address of the Web Server...

The literature for the Industrial Ethernet 1000 switch(1000-8P2S-LM) states that it supports Pnp with option 43.  I see it come up, grab a DHCP with the option pointing to our DNA-C server.  I see in the Syslogs that it contacts the DNA server.  I se...

Hello everyone,I am a student and i have a diagram (theoric) to do. I want to stack 5 access together, and i was wondering if i could link those stacked switches via EtherChannel to the distribution switch using one port on every of the 5 stacked swi...

                   One of the ports on the 3750 stack was configured for VLAN121. It was changed to VLAN40 and the configuration saved. Both VLANs exist in the switch configuration. As soon as a host was connected (in this case, a label printer) the ...

I need the ability to manage Network B from Network A.  Currently we have a physical link between the two switches and things are working fine. But Switch 1 in Network B is going away and it's an HP switch. It is being replaced by a Cisco switch.  Wh...