Cisco
Intro to UCSMSDK
· ☕ 4 min read · ✍️ Brett Johnson
First look at the Python SDK for USC Manager

Layer 2 Frame changes through at each hop
· ☕ 3 min read · ✍️ Brett Johnson
I enjoy building test environments to help cement the concepts I read about. In this case it';s the changes to the source and destination MAC addresses of a frame at layer 2 while it passes through each hop on the way to the final destination. To watch this process I setup wireshark between each hop. The topology was very simple, 2 hosts and 2 routers. ![Topology]({{ “/assets/images/2015/08/Topology.png” | absolute_url }})