Switching

Hi guysjust brushing up on some topics.If you have a network, say core, fiat and access all connected with redundancy, on which ports would you enable root guard?my thought was user facing ports and the ports on the core, all other uplinks in the rin...

I've found 4 switchports on two switches in our environment that are automatically reverting changes that are made to them. In this case, I'm attempting to simply change the assigned VLAN of the switchport and then bounce the port.  When I look at th...

Hello,We observed packet bursts on a couple of interfaces, cat 9300And we do also observe Hardware packet drops at TH2. And I am wondering:What type of traffic is buffered in  Queue 0 - 7.What is the difference between Drop-TH0, Drop-TH1, and Drop-TH...

I have this assignment where I need to make this work. I am new, and I've spent 5 days without understanding what I'm doing wrong and why it doesn't work. The topology must not be altered. I must use OSPF and change the addresses shown in the picture...

I'm running a Cisco Catalyst 1000 switch with IOS version 15.2(7)E11 in Layer 2 mode. Multiple clients are connected across various VLANs, but I've noticed that certain VLANs are not forming spanning tree instances and aren't reaching the root bridge...

I have 2 pairs of Nexus 9ks and two fiber links between 2 data centers. As of now, I'm doing layer 3 (OSPF) between these 2 data centers for interconnections. I don't want to go to the ACI route; I'd like a simple VXLAN solution for the 2 interconnec...

This week, we’re exploring the Collapsed Core design! A simple, efficient foundation for real-world networks. Perfect for those just starting their networking journey!Inside:Lab topologyTasks to completeThis weekend, I’ll post a full step-by-step vid...

Dear community memebers,I need to test a scenario containing cisco nexus 9300 switches on a virtual lab. I tried to configure vpc on my switches both in eve and gns3. But I have a problem. I configured my switches, and the vpc is formed fine and is u...

Hi if add to uplink switchrouter bgp 65000address-family ipv4 unicastaddreggate address 192.168.0.0/24On all uplink Must be aggregate routes subnet 192.168.0.0/24 and onlyOne route announce to uplink 192.168.0.0./24Announce to uplink all routes inclu...

Hello Cisco Community!The Situation:Multiple departments have suddenly lost connectivity. Several links are down, redundancy is broken, and the network is unstable.You Have:Full device configurationsPhysical topology layoutConsole access to all switc...

HiIs it possible to operate a C9400-PWR-2100AC at 10A/230V? I only found the following specs for Input current for the C9400-PWR-2100ACInput current (rated):  ●  10.4A at 100 VAC ●  10.4A at 200 VAC https://www.cisco.com/c/en/us/products/collateral/s...