Routing

Hello community,If switch is connected with two ports to the hub or to the STP unaware, unmanaged switch, then ports will receive each others BPDU. What will happen in that case? What happens when Switch receives its own BPDU?

Hey so basically I will explain a little about what I did and then, I will reach the problem Topology/scenario 2 sites+ hub. 2 vrfs on every edge - on site 1 it's underlay+site_1 and the same accordingly for site 2 and on the hub it's underlay+site_1...

Hello office working well, i cant entry ssh via private address, when i try connect via global address i coudn't i will start trublishooting everythisg is good, i Guess ISP will block ssh incomming or any filter to my private ip address, Thanks in ad...

Hey all, Ive been setting up all my Cisco lab again and got around to playing with PPPOE and NAT. I have the setup 90% working and I can use internet services just fine, however I am finding i cant use web services i have hosted on my regular LAN. Im...

Hi All,   can somedbody give good example of VPC dual active Detection in Nexus VPC .   if Peer-keepalive and peer-links goes down , what will happend at that time ?   thanks vinoth Kumar C       

Hello! I'm currently practicing on configuring multi area ospf but their is a problem.In the 172.16.56.0 subnet,the main router isnt getting any area routes but the area border router connected to it does. They are ospf neighbors,in the right subnet,...

Hello,I have a question on Cisco 8000V router.Does the Cisco 8000v Advanced license include DMVPN functionality?Also, are there any limitations regarding site-to-site VPNs?Does it support firewalling features, such as NGFW capabilities?Additionally, ...

Good day All,I have 2 N9K-C93108TC-FX3P running ospf (rtrA and rtrB) right now the way ospf is working is that all the routes are currently going over rtrB.  I have 2 subnets 10.4.1.0/2410.4.2.0/24I don't want these 2 to go over rtrB but instead need...

Hey everyone - had a question about dot1q tunnel. I am trying to wrap my head around it for a customer handoff on a 3560 device, which hands off on a l2vpn between two nodes on my MPLS. The one end is at a branch of the customers, we are hoping to ad...

Hello,I have two routers connected with multiple switchs beetween.I'm encountering a problem for forming adjencies in OSPF.I don't understand something, all my interfaces are with 1500 mtu value. But when i put a link beetween two switchs in trunk mo...

Hi, what could be the reason ?Last reset cause: Unrecoverable ErrorC1117-4PWA platform with 4194304 Kbytes of main memory........no valid BOOT image foundFinal autoboot attempt from default boot device...Located pnp-tech-time#Unsupported package head...

We have had a Cisco 867 router on  our DSL line for 10 years without problem. It provides NAT to the LAN and acts as a DHCP server.We tried to replace it with a C1117-4P with an almost identical config but after doing so started receiving spam voip (...