Tag: SPBM
-
Held the Line, Owned the Miss
An SE evaluating me for a role told me something about my own resume I’d never noticed. It carries more “held a technical position against management pressure, then was proven right” stories than any resume he’d reviewed, he said, and he called it an unclaimed sales instinct. I wrote about that on LinkedIn. This post…
-
When the Interior Doesn’t Speak PIM: SPBM Multicast Root Cause
SPBM Multicast and a Replacement Plan That Assumed the Wrong Protocol A hospital system spanning several states runs its live IPTV distribution out of a single metro region’s headend: DirecTV and BlonderTongue encoder headends feeding 60+ active multicast streams. When the core node serving that region was rip-and-replaced, removing legacy Avaya-era SPBM hardware out, standing…
-
460 Devices, No Documentation, and the Pipeline That Changed That
The engagement had 460 managed devices and no current topology documentation. Network topology automation was the only viable path — manual spreadsheet work would have taken weeks and produced a point-in-time artifact no one could re-run. The Cisco design team needed three structured deliverables before they could move: device inventory, physical topology graph, VLAN/service map.…