# 2023-11-21 課程簡記

## 校友對話: [Dung-Ru Tsai](https://www.linkedin.com/in/dung-ru-tsai-240882a2/)
* 勵志故事: 成大數學系倒數第 X 名畢業 $\to$ 應屆考上成大電通所 $\to$ 研發替代役面試被慘電 $\to$ 一般替代役 $\to$ 服役期間請假到成大參加短期暑期課程 $\to$ 翻身
* 經歷: 聯發科技 (新竹) $\to$ Cisco $\to$ 新創公司 Clounix $\to$ 聯發科技 (美國灣區)

### WiFi: 2014~2017
- Porting freertos and LWIP on CM4
- WiFi firmware team
- 802111/b/g/n/ac
- Verify the WiFi hardware
- https://github.com/dungru/linux-network-performance-parameters
- 2017 年底離職不做,太操了
### Wired: 2018~2023
- Cisco:
- 12.8T datacenter switch
- 32x400G ports
- Switch board and ASIC bring up
- L1 PHY Serdes tuning
- [Cisco N9K team](https://www.cisco.com/site/us/en/products/networking/cloud-networking-switches/nexus-9000-switches/index.html)
- Clounix:
- Get a lot of STOCK
- L2/L3 Datacenter Network
- Tunnel: Vxlan/EVPN
- Resposible C++ Model simulation
- [vwifi](https://github.com/sysprog21/vwifi)
- Linux: Large Receive Offload (LRO)
- 8.7. Receive Packet Steering (RPS)
- Linux Tunnel offload to Hardware

推薦同學去挑戰 NV
- https://www.nvidia.com/en-us/networking/ethernet-switching/
- Nvidia cumulus mallox

### WiFi: 2023~Now
- Filogic830: https://www.amazon.com/Banana-BPI-R3-MediaTek-Filogic-Support/dp/B0BFC9L99J
- Wifi6: 802.11ax
- openwrt
- Driver mt76 都不是我做的
- 快跟不上了 還有wifi7 802.11be
- 大家快來報名WiFi
- [MTK路由器超強 搭MTK830的共碩天選登榜首](https://www.ptt.cc/bbs/PC_Shopping/M.1698317261.A.C29.html)