Switching

I am trying to setup an IP HELPER-ADDRESS per SVI but clients are not getting IP address from the assigned DHCP Server in the IP HELPER Address.  C1300-24XT has also different syntax or argument in declaring IP HELPER-ADDRESS.Catalyst 1300 Series Man...

I have an extensive network that I care for on-site and I have run into a problem that is baffling me.  We have a single layer 3 switch that handles inter-VLAN routing with several large layer 2 switches that are used as distribution switches for the...

I just did try to upgrade this devices to new IOS 15.2(7)E13 and are failing to take this IOS, the worst thing is the devices back (ROMmon) mode. it cannot locate a valid Cisco IOS software image to boot from. Before we do any reload on this devices ...

Hi,we do have migrated our Cisco 6807 to cisco C9606R.we are in version 17.12.5.Since we have migrated we have a problem with Hitachi server Hearbeat connected on C9600-LC-48YL line card.we have the following configuration :NAME: "FiftyGigE1/1/0/20",...

Hi all, as a beginner I know this diagram might be too much and I aim too higher but I want to know if the diagram is correct and if i can configure so it will work properly.  So I need to make a project for uni. The project is to design a high redun...

we have a 9407 and several small business edge switches, we recently had an issue where we lost internet connection in the whole facility, we started troubleshooting using elimination; we were able to identify the switches that created the issue. How...

Hi everyone,  I’m experiencing a strange issue on one of our Cisco switches: several interfaces (e.g., `GigabitEthernet2/0/5`, `2/0/9`, `2/0/11`, `2/0/13`, `2/0/14`, etc.) are continuously going **up and down every few seconds**.  I dont have any hub...

IOS-XE Update Failure (Catalyst Center)We are trying to update the equipment, running in install mode, and it fails deployment due to lack of space. The command: [ install remove inactive ] does not correct the problem. Is there a document that lists...

Hello Cisco Community!Redundancy is great! Until it creates loops. That’s where Spanning Tree Protocol (STP) steps in!In this week’s session, I dive into how STP protects Layer 2 networks from broadcast storms, how the root bridge election process wo...

I have 2 kron policy-list and 2 kron oneshot occurrence's happening for updating IOS-XE, 30 minutes apart from each other.  One of the kron jobs stays in the running config after it has successfully been completed and in kron Scheduler and looks like...

Hi. I am studying for the CCNP Encor and up until now I have been using GNS3 and eve-ng. I'm now looking at purchasing small physical switches as I am tired of learning that not all commands/functionalities work on simulated environments. Due to spac...

Hello Together,we have a Catalyst 9500 Core Switch and I wan to Isolate a specified VLAN (VLAN 5) deny to connect to all other VLAN. Here is a simple configuration and explanation what the result should be.VLAN 2 (Server) 10.1.2.0/24 Gateway VLAN int...

Can somebody please explain me the vpc concept.

I have a customer who is struggling with the Thumbscrews that are used to secure these cables to the routers.   I am trying to find out if there is a part number associated with them and if it is possible to purchase replacement screws.     Or if the...