I get the following error message: https://pastebin.com/WEwAvbsCThe network is shown in the image. I literally just press start all devices, connect to console and get that. I tried googling the error but nothing shows up.

I have a spanning tree configured. When I change the root bridge's priority from 32768 to 32767, I observe something very weird in Wireshark. As you can see in the packet dump I posted, the root bridge priority didn't change from 32768 to 32767 like ...

I have configured 2 /64 subnets, each consisting of one router and one VPCS. The only command I inserted in the VPCS was ip auto. For some reason, they didn't configure themselves using EUI-64. The global unicast address looks like it almost used EUI...

I have a network like the one in the picture. This network is configured with IPv4 and OSPFv2 for routing, but R5 and R6 have multiprotocol BGP IPv6 connections to other ASes. To allow for communication between the PCs and the outside IPv6 world, I h...

I have a network like the one in the picture. Inside AS 92 I have OSPFv3 running, and in both R5 and R6 I have BGP as well. MLS are multi layer switches, so they also have OSPFv3.I want to redistribute all the IPv6 subnets advertised in OSPFv3 into B...