Switching

Hi, I'm new to multicast configuration. I have a core switch (C9300) and an access switch (C1200). The requirement is to enable multicast in only one VLAN (for IPTV), while another VLAN (the IT VLAN) should be able to communicate with it. Could you g...

Hello, we are seeing high output drops on 1 interfaces on different switches.Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 44030950There are no interface errors.interface TenGigabitEthernet1/1/6description floor 4switchport tr...

I have a new Catalyst 3850 24T. I want to upgrade it to the latest IOS XE. I have uploaded the bin file, but it says it doesn't have enough space to extract it. I am new to XE, and I'm unfamiliar with all the things in flash: Does anyone know what is...

Hello,I'm trying to configure flows to a Catalyst 2960-X with an external Openflow controller. So far I was able to configure Openflow on the switch by following this guide https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960xr/software/15...

Connected to our switches we have a number of Access Points, that for various reasons are not always in secure locations.In theory this means someone could disconnect the AP and connect a laptop to the trunk port.I’ve tested this and using Wireshark ...

Hi All,Switch port is configured for dot1x and mab authentication and default VLAN is guest VLAN.We want to block peer-to-peer traffic between guest hosts.What are possible solutions for this case? Thanks  

Hello every one,can you please help me with below:I'm trying to implement the attached setup where I'm planning to use IE3400 as an HSR redbox and be part of RSTP ring at the same time.is this something achievable? can I configure RSTP and HSR protoc...

Greetings,I have a span/monitor port set up to mirror a vlans traffic on a 9606 Stackwise pair. My question is:  Does a single span/mirror port on one of the switches capture all the vlan traffic from both switches?  My gut says yes, but I want to ve...

Whats is the difference between pvst and Rpvst? Is there any problem if i put only pvst in all switches instead of RPVST?

Hi All,   We are getting the below attached error in our switches . Our current switch model is  C9300 - 24S and connected to C9200 series. Earlier it was  3750 and it is connected with another 2960 Switch.  At that time we were not getting the below...

We have an issue where we've enabled DHCP snooping for vlan 20,30,40,50 but out of which only vlan 50 is not working(clients are not getting IPs) Vlan 50 = DHCP server is on directly connected router...rest are with local DHCP servers (working proper...