Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
Forum Posts
Resolved! UDLD and BPDU Filter - where it is used
Hello Networking world, I am in IT from last 4 years but never use these two protocols on any switch. Please explain the practical behaviour and scenario where you guys can use it. Thanks
Hi im new here and relatively new to networks i have a job coming up that requires a site to have 2 ip ranges for cctv cameras. my question is: will their be a conflict if you have 2 ip ranges running through one switch? i will have 2 servers each us...
Hello all. I'm doing a lab of HSRP and the target is when I lose reachability to the ISP I want the second router to be active. My Topology : I did a shutdown on fa0/0 on isp to lost reach-ability to the ISP from R1 and check again R1 , seems to ...
Resolved! Cisco Catalyst 9400 Switch Fabric
I have a requirement where the customer is requesting a Core Switch with redundant switch fabrics. Does the Cisco Catalyst 9400 series switches support redundant switch fabric? If not? Which series of switches support redundant switch fabrics?
As the title, I want to know whether Cisco Nexus 3548 IP Switch support st2059 boundary clock function. Becasue i find cisco Nexus9000 IPSW, there is PTP ST2059 option but 3548 doesn't have option. Hence i suspect Nexus 3548 doesn't support st2059 b...
Hi Folks, I am having a hard time to get a trunk link working between Cisco 4500X and Brocade VDX 6740 Network Diagram attached, there are currently 4 Interfaces connected between two switches as port-channel and it's access port, the new link I am ...
Resolved! SSH
Hi guys, I have seen tutorials that include and omit out domain name in the configuration of the SSH in a router/switch. What is the significance of including it? And does it have any impact if it's omitted?
Resolved! Speed and duplex strange issue
Hi all, I need to understand the speed and duplex settings of the port. I am trying to hard code the speed and duplex settings of the interface which apparently seems a simple procedure. So far what i have learned is you can hard code the interface...
Resolved! OS Firmware upgrades
Hi, Just a quick question: I have a WS-C3750G-12S on 12.2(44)SE2 (IPSERVICESK9) I wish to purchase a referb as a backup. Can I upgrade the following device easily and for free to be the same version as above? WS-C3750G-12S-E on ipservices-...
Hi Everyone, I just brought up a new pair of Nexus 7706. I went through and completed the initial setup but for some reason I am not seeing any CoPP policy in the running-config where I can it in the running-config on my Nexus 7010. Does Cisco stop ...
Hi Guys I have an issue with vlans connection, the costumer has two vlans (50, 51) and he asked to make new one in same way as the current vlans so I have made new on vlan53 in same way as vlan50 & vlan51 as mentioned in below config. in vlan50 the...
Resolved! difference between redistribtuions
Hello everyone. I'm having a difficult time understanding what the difference between the set of commands between these 2 routers. What's confusing is me how the redistribute command is being used under the router bgp process for DC2 wan router, bu...
moved from this:https://supportforums.cisco.com/t5/small-business-switches/vlan-client-can-t-access-web-with-web-browser-ping-telnet/m-p/3413756/highlight/true#M20089 Hi there, i have some problem with my network, let's say.. my topology is like this...
Resolved! High CPU Usage on 3850
I have a stack of 5 WS-C3850-48P running IOS 16.3.6. A newer IOS has not been authorized yet for my company so upgrading IOS is not an option. I saw a bug in the older IOS 16.3.3 that the IOSD ipc task would max out the CPU. I have multiple 3...
I have 3 routers. R1 (Loop back 206.87.176.20) R2 (Source NAT : 206.87.176.20 ---> 10.14.1.1) R3(loop back 172.28.20.20). Between R1, R2 -we are running vrf. I am able to ping from R1 to R3 loopback , which is Natted on R2.(Source NAT). From R3 , not...
