Switching

We are experiencing an issue where cisco router is pinging some servers with his wan ip.we didn't find the reason so we tried to block the ping,Despite applying ACL, I still see logs of the ping in the firewall, it's really weird because when I try t...

anyone to help with my switch, logging the following logs and rebooting automatically.before it reboots the syst and rps lights light amber and then the fan off the reboots!#model: CS-2960x-48FPS-L

Hello,It's possible to identify QoS traffic based on DSCP values. For example, for the EF class, by using the command "match ip dscp ef". But, how is the correct DSCP value set for specific traffic?I know that with some applications, the user can hav...

Hi,I have a IE-4010-4S24P switch with "15.2(8)E6 (Crypto) UNIVERSAL" firmware.I have configured it to act as a boundary clock (Power profile), and the switch succesfully synchronizes with a GPS clock connected to an access port (VLAN 2). To another a...

Have you ever experienced VLAN issues? I'm facing an issue where my laptop should be able to ping all VLANs, but it can only ping the VLAN it's assigned to.Here's what I encountered:1. I enabled IP routing on the C9500, but when I run the "show run" ...

Hi and thanks in advance for the guidance. Im tasked with designing a IPv4 and IPv6 addressing scheme for a small network (2 host PC's 3 routers with loopback interfaces and two switches) I note in the Cisco IP Addressing Guide it makes reference to ...

I'm looking for the best approach to configure VLAN segmentation on a core switch where some VLANs can communicate with each other while others are restricted. Here's the scenario with 5 VLANs:VLAN 10: Can communicate with VLAN 20 and VLAN 30 only.VL...

I have upgraded cisco catalyst 9300 switch ios upgrade from 16.6 to 17.12.4. after that I have load existing configuration via tftp after that I have save configuration via wr mem and reload it. But after reload when Switch comes again up there is no...

Hello,I am looking for a list that will show both Model names to Part number on any Cisco SFPs.Examples:Model name “SFP-10G-SR-S” = Part Number 10-3105-01Model name “SFP-10G-SR” = Part Number 10-2415-03Model name “SFP-GE-T EXT” = Part Number 30-1421-...

I have a C9300-48UXM originally running 17.6.5 now 17.9.4a (symptom present on both code versions) on the bench, is it normal for the port status LEDs to flash continuously (green) even when there is next to no traffic on the port?A single device con...

Hi!How to clear MAC-Address on a specific switch's portYour help is very much appreciated.

I want to know the temperature for the switch for the model  - CBS350-8P-2G 8-Port Gigabit PoE Managed Switch.I have tried the commandsh env allInternal power supply Active.Fans status is N/ATEMPERATURE is OKWhy fan is showing here N/A here? How to k...

We have a series of switches that we have created an account for a user to only be allowed to set port descriptions and change vlans. Randomly, the user can no longer change vlans. Below are the commands I used.Thanks privilege exec level 8 conf tpri...

Hello, what is the best way to set up the STP protocol when installing a new Nexus 9000 switch between existing Nexus 3000 switches without changing the configuration on the existing switches, using the STP priority and STP root secondary commands?