Engineering at Meta

FEBRUARY 7, 2024

While deploying Precision Time Protocol (PTP) at Meta, we’ve developed a simplified version of the protocol (Simple Precision Time Protocol – SPTP), that can offer the same level of clock synchronization as unicast PTPv2 more reliably and with fewer resources. The number of network exchanges is drastically reduced.

Protocol 130

Protocol Unicast Data Centers Server 130

The Network DNA

JULY 16, 2024

Remember PC-2 knows the MAC address of the PC-1 when responding to ARP Request, so ARP Response is NOT broadcast, it is Unicast communication between PC-2 and PC-1. The benefit of this process is, that next time when PC-1 wants to communicate with PC-2, it doesnt need to send a broadcast on the network. PC-1 maps the IP address 1.1.1.2

Protocol 98

Protocol Ethernet IP Address LAN 98

The Network DNA

JULY 5, 2024

Introduction to VXLAN MP-BGP EVPN Route Types Before we start with the route types lets talk about the EVPN, EVPN (Ethernet Virtual Private Network), enables virtualized Ethernet communication between various network devices. It operates by using IP plus UDP to travel over the physical network.

IP Address 52

IP Address Ethernet Advertising Unicast 52

Engineering at Meta

NOVEMBER 21, 2022

PTP’s predecessor, Network Time Protocol (NTP) , provided us with millisecond precision, but as we scale to more advanced systems on our way to building the next computing platform, the metaverse and AI, we need to ensure that our servers are keeping time as accurately and precisely as possible. The PTP architecture Regional PTP architecture.

Protocol 57

Protocol Server Unicast Network 57