System & Network Software Engineer.
OpenBSD 🐡
- LDP: fixed adjacency processing logic
- Modified the adjacency lookup logic to include both the source IP and LSR ID. This prevents obsolete neighbor entries from persisting after a remote peer LSR ID change.
- 🌐 View Patch in openbsd-tech mailing list
- ⚙️ View Commit in OpenBSD source
- BGP: fixed dissector checks for labeled prefix parsing
- Corrected BGP prefix length validation for SAFI 4, 128, 129, and 130 to resolve default route display issues, integrating it with RD-aware checks.
- ⚙️ View Commit in Wireshark
- ⚙️ View Commit in Wireshark mirror
Linux 🐧
- FIB: fixed fib_info hash collisions for IPv4 routes with MPLS labels
- Identified a performance bottleneck in
fib_info_hashwhere O(N) lookup complexity caused significant delays during large-scale MPLS route updates. - Proposed a
.get_encap_hashcallback forlwtunnel_encap_opsto include MPLS label sets infib_infohash calculations. - Technical Outcome: Achieved a 400x speedup (from 6m to 0.8s for 100k routes); technical discussion confirmed the issue and established Nexthop API as the preferred architectural alternative.
- 🌐 View Technical Discussion in netdev mailing list
- Identified a performance bottleneck in