Switching

Hi !I currently studing for my CCNP certification .Questions on STP :is PVST only supperted on ISL ? what about new switch on which ISL is no more supported ?I'm not sure about the process about the compatibility issue between 802.1d and 802.1w detec...

Hi all,My scenario is something like:I have a PC which is to be remotely connected (RDP) by an external PC (Not in my network, internet). I want that once the outsider PC gets RDP of the inside PC it should not communicate with any of the PC's in the...

Hi !I currently studing for my CCNP certification .Questions on STP :1) I not sure I'm correctly understand the difference between alternate and backup port. When I had read on it I had suppose wasd correctly understood, but in lab (I use 4 switchs ...

!!! WARNING: The switch is not usable !!!I got this message from one of my 3550, it was working fine some months back while my LAB was up and running, in the last 6 months thae lab has been down. then just booted it up today to get the above message....

I have been trying to get in 2600 switch console but have not being able to succeeded. Although I have been following all the instructions on the 2600 installation guide. which are 9600 baud8 data bitsno parity2 stop bits (9600 8N2) OR 1 stop bit¹¹...

obviously i'm a newb. but i'm pulling my hair out trying to understand cisco. in order to figure things out i bought a cheap 2501 router. and i have no clue what its for.#1. it has no ethernet port. So it must not go on a network? No thats untrue! th...

We have been tasked with the possibility of implementing jumbo frames on some of the switchports that are used by our servers. I see where you can increase the MTU size on the ports. However, I have also seen that if you're going to do this you hav...

I have 3 3560's in one closet that are connecting with copper SFP's between each other. The top 3560 and bottom 3560 have a fiber SFP to the Core. How important is it to have the return cable from the top 3560 to the bottom 3560 switch?

1. Can a 2960 be part of a 2950 cluster? If so, can the 2960 be the master switch ?

Hi all,I have a new 2811 running 21.4 (3h) Advanced Security image.Could someone please advise if I should upgrade this image to a more stable or newer release.TIA

I have set up an out of band vlan to control some otherwise routed devices. I had some questions and would like to find a good book on security. Do you have a favorite? Also interested in IPv6.I ran my vlan from a central switch, where I just too...

I have a dead switch catalyst 3560 and will not power up at all.I have a spare and thinking if there's a way to swap their power supply unit.

Hi,I have WS-C2960-24TC-L Switch with Software Ver 12.2(25)SEE3 and imge C2960-LANBASE-M currently on it. I want to enable SSH connections on the switch and believe I need to import the cryto image onto the switch. Is this right and if so how do ...