YING XIE

Projects:

• Create IDPS Performance testbed to visualize IDPS impact on the network performance.
• TLE (transparent linked encryption): be responsible for creating server and client of Command Line Interface, and cross-platform build.

Other Tasks:

• Co-owner of Context Engine, which is an interface to IDS, IDFW, PACE etc. : unit tests and fix customer issues.
• VDPI: fix customer issues.

Projects:
★ Innovations to speed up the performance of the registry database based on SQLite database engine.

1) Design and Implement WAL features on registry, which cause speed up the performance of database hundreds of times faster than before.

Result: Writer speed can be 600+ times faster than before, Reader can be 200+ times faster than before.

Next step could be more than 1000+ times faster than the first stage with hardware replacement.

2) Investigation on multiple distributed databases including Cassandra, MongoDB, RocksDB etc.

Contributions on registry database:
★ Develop new features and improve the existing features.
★ Reduce number of customer issues in registry component by +95%.
★ Worked with cross-functional teams to resolve customer issues within the Data Domain distributed embedded systems.

★ Actively tutoring: Give new employees a bi-weekly class on registry component for one year.

working in the System Management Infrastructure team, and responsible for the development and upkeep of registry module on distributed systems. Registry component is SQLite store which is used by all other internal components.

Projects:
★Developed DataDomain Registry key-value data store using the SQLite on Single node and HA (High Availability) distributed system on Virtual & physical systems.

★ Reduce the number of customer issues by +90%.

Working in Platform team of Data Center, engaged in developing new features in JUNOS operating system on Distributed Systems.
Part of projects in Juniper:

• Time Synchronization on Mixed-Virtual Distributed System
  Implement at socket level a new time synchronization mechanism between the Master and other members within a virtual distributed system
• Turn-on-Beacon on Mixed-Virtual Distributed+Embedded System.
  Created a pipe communication module so that the Master which provides a user interface for chassis management, enables turn-on-beacon on other members within the virtual distributed system.
• Configuration Alias for Virtual Distributed System
  Wrote a user friendly interface for administrators to define aliases for the nodes of a virtual distributed system.

Work in Network Application team of Firmware Department.
Network applications are about TCP/IP, SNMP, Web Services etc., Socket programming, C programming, Embedded systems on wired / wireless( WLAN 802.11 ) / WiFi Direct network.
Some projects:

• Web Service Dynamic Discovery Protocol（WSDDP）on WiFi Direct Network.
  Implement at UDP socket level to use WSDDP for finding devices within WiFi Direct network.
• Web Servers Merge
  Merged two web servers for wired/wireless network and WiFi Direct network into one to improve efficiency.