Snow Wood Tech

Test it or it doesn't count. Pull an uplink monthly. Measure real failover time with Wireshark + continuous ping. Review MAC flap logs afterward. Untested redundancy is expensive false confidence. Document your RTO before an incident, not after. #NetworkingProfs

Physical layer: dual uplinks to separate switches, not just a stack. PoE budget must handle N+1 load — if one uplink fails, the survivor carries all. Use LACP (802.3ad) for active/active or HSRP/VRRP for L3 gateway failover. #PoE #CommercialAV

Switch redundancy isn't optional in critical systems. One switch failure = total downtime. Your architecture needs: dual uplinks, tuned STP, and sub-50ms failover. Here's how to build it right. 🧵 #NetworkingProfs #CommercialAV

Certify every Cat6A run with a Level IV field tester (Fluke DSX-8000 or similar) — not just continuity. Runs must pass the alien crosstalk (AXT) sweep. ~30% of DIY installs fail first cert. Bad keystone terminations are the #1 culprit. #NetworkingProfs #CommercialAV

PoE++ (802.3bt, up to 90W) on Cat6A? Bundle thermal derating is real. TIA-568.2-D reduces allowable current for bundles over 24 cables. In a 192-port IDF at full PoE load, expect heat-related throttling without proper tray spacing. #PoE #NetworkingProfs

Cat6A supports 10GbE to 100m — Cat6 caps at 55m. That 45m gap matters in large commercial floors. Spec S/FTP (shielded) when bundling 50+ cables: unshielded Cat6A alien crosstalk degrades fast in dense cable trays. #NetworkingProfs #StructuredCabling

Close with certification, not just continuity. Level III OTDR trace on fiber. Level IIe on copper. Label every run: [bldg]-[flr]-[TR]-[panel]-[port] Uncertified infrastructure is a liability at every future service call. #LowVoltage #NetworkingProfs #CommercialAV

Most designers miss the PoE budget math. A 48-port PoE+ switch delivers 740W total — not 30W×48=1,440W. One floor of PTZ cameras + APs + VoIP can blow the budget. Calculate real per-device wattage first. Add 20% overhead. #PoE #CommercialAV #NetworkingProfs

Low-voltage design starts with pathways, not cable selection. Size conduit at 40% fill at install — 1" EMT holds ~4 Cat6A cables. Plan for 2× growth or you're re-pulling in 3 years. #LowVoltage #NetworkingProfs #StructuredCabling

@TimDris70165938 This might answer some of your thoughts. youtube.com/watch?v=dFImHh…

@SnowWoodTech @s_kirton @JfkPascalNajadX So the part about the life of the starter doesn’t matter? Save pennies on gas but the cost of getting a new starter sooner should eat up those savings. Common sense back in the house

If you're setting this up yourself: start with UniFi. Their network app walks you through VLAN tagging on each port and WiFi SSID. Separate SSIDs per VLAN, tag your switch ports, done. Your smart home gets smarter without becoming a liability. #VLAN #NetworkSecurity

The detail most people miss: inter-VLAN routing rules. Blocking the IoT VLAN isn't enough if your firewall allows return traffic back. Set explicit DENY rules from IoT → Main at the router level. I use pfSense or UniFi — both let you do this in under 10 minutes. #NetworkSecurity

Your smart thermostat and your work laptop are on the same network. One compromised IoT device = full access to everything. I've walked into hundreds of homes where this is the setup. Here's what I do instead when I wire a house. 🧵

@theVatOfButter If you want to look into the science in this video, I would recommend it. youtube.com/watch?v=dFImHh…

@SnowWoodTech @JfkPascalNajadX it does not improve efficiency.

Living in the future.

@iambotyb I love to point people to this video for the science behind it. youtube.com/watch?v=dFImHh…

@SnowWoodTech @JfkPascalNajadX Here's the counter argument: What if it DOES NOT make the cars more efficient? Even you said "if".