
Wen Zeng
- Network Engineer
- Bedford, TX
- Member Since Jun 09, 2023
Wen Zeng
Summary:
· Over 12+years experienced in Network Engineer with superior skills in creating Cisco-centric Networking, Security and Wireless solutions.
· Responsible for the configuration, implementation and operation of Cisco routers Cisco and L2/L3 switches.
· Configure, monitor and troubleshoot Layer 2 & 3 Switches
· Analyze business requirements in order to design and implement an infrastructural solution using any or all of the following Cisco technologies: LAN/WAN Routing Protocols & Switching, Wireless, WAN Circuits, OSPF, BGP, Load balancer, HSRP, QoS, Wireshark, VLANs, Port Channeling and ACS.
· VLAN design and port assignments to meet business requirements.
· Participate in upgrading CatOS/IOS image on Cisco devices including Cisco Routers 1600, 2600, 2800, 3600, and Switches 3550, 3560, 4500 series.
· Good understanding of TCP/IP and Routing Protocols including RIP, EIGRP, OSPF.
· Expertise level support experience on Ericsson OSS-RC 5.x-13x & ENIQ 11.x-13x for System administration on sun Solaris and window servers (WAS and OIS)
· Set-up AXE-APG 40/43 NEs for OSS-RC and integrate for system configuration for fault configuration and performance management.
· Perform software & hardware debugging and troubleshooting on the core nodes
· EBID, Ericsson Business Intelligence Deployment installation , Configuration and Design Business Object KPI report template
· Develops design documentations with detailed equipment list, routing design, migration procedures, as well as test plans for verification of proof of concepts.
· Comfortable with design and troubleshooting of WAN technologies such as T1/T3 Circuits, frame relay, HDLC, PPP, MPLS and ISDN PRI/BRI.
· Adept at performing Network Architecture and Design as well as Network Readiness Assessment and Troubleshooting.
· Strong attention to detail in regards to architecture design, project planning and documentation
· Ability to apply judgment, implement solutions, and resolve conflicts, all in a multi-tasked environment
· Excellent communication and presentation skills.
· In-depth Cisco technology knowledge in design, implementation, security and support
· Excellent experience on TCP/IP, including packet-level traffic analysis
· Expert knowledge of layer 3 routing and layer 2 switching
· Excellent experience in Network Planning, Implementing, Configuring, Troubleshooting and Testing of networking system
· Utilize Wireshark to do package analysis
· Utilize Visio to document the network
Work Experience:
Lanecert.com. Bedford, TX Jan 2015 to Present
Network Engineer
Responsibilities:
· Manage and participate the complete life-cycle of the company internal network, including research, design, planning, and implementation, operations, maintenance and project management.
· Responsible for the configuration, implementation and operation of Cisco 3745 routers Cisco 6509 and 3560 L2/L3 switches.
· Provide network consultant service to difference clients, including oversight, maintenance, troubleshooting, hardware replacement, performance improvement.
· Responsible to help team for troubleshoot, configure and resolve the issues regarding F5
· Configure routing, switching and security equipment, including Cisco Frame Relay, ATM, Catalyst 2950, 3560, 3750, 3850, 4500, and 6500 series, ASA 5000 series, ISR 4000, 3900, 2900 series.
· Performed load balancing and application level redundancy by deploying F5 BIG-IP
· Layer 2 data network support: spanning tree solution, including PVST, RSTP, MST, and VSS, switches access, trunk and ether-channel connection, switch security and VACL. Layer 2 support of QoS and MultiCast.
· Implemented Application layer security using F5 APM/ASM as well as Checkpoint
· Implement OSPF, RIP, EIGRP, eBGP and iBGP routing protocols, and NAT, QoS, IPSec VPN, DMVPN, MPLS, including redundency, load balance and path control.
· Worked on the configuration and troubleshooting of F5 load balancer
· Configure and troubleshoot Multicast.
· Monitor and handle network incidents. Access, troubleshoot and solve problems for network and
· application issues. Configure and assist with implementation of network hardware, including routers, switches, firewalls, wireless controller and access points.
· Document and present design and implementation proposals to Sr. Management for approval. Proficient with MS Visio, Word, Excel.
· Develop standards for computer and network systems, including standards for wiring, equipment, system security, and routing protocol.
· Maintain the standard for low-level design documentation and templates.
· Set up the method of procedures for all network changes to the Infrastructure.
University of Texas at Arlington, TX. Aug 2004 to Aug 2014
Network Engineer
Responsibilities:
· Responsible for the configuration, implementation and operation of Cisco 3745 routers Cisco 6509 and 3560 L2/L3 switches.
· Removed Cisco 3600 and 2600 series routers and Cisco 2900 series switches from the current infrastructure and replaced them with the Cisco 6509 or 3560 L2/L3 switches.
· Configured and implemented Composite Network models consists of Cisco 3900 and 2900 series routers and Cisco 3750 , 4500 and 6500 Series switches
· Configured RSTP, MST and used VTP with 802.1q trunk encapsulation. Provided port binding and port security wherever required. Provided router redundancy through HSRP.
· Configured ether channels using PAgP and LACP.
· Designed ACLs, VLANs, troubleshooting IP addressing issues and taking back up of the configurations on switches and routers.
· Provided testing for network connectivity before and after install/upgrade.
· Switching related tasks included implementing VLANS and configuring ISL trunk on
· Fast-Ethernet and Gigabit Ethernet channel between switches.
· Experience in Cisco switches and routers: Physical cabling, IP addressing, Wide Area
· Performed troubleshooting, while maintaining trouble ticket tracking, following
· Internal/external.
· Escalation procedures and customer notifications.
· Design service for /upgrade/configure ALU’s IP/MPLS products e.g. 7705 SAS, 7210 etc.
· Configured Cisco Routers for OSPF, IGRP, RIPv2, EIGRP, Static and default route.
· Administrated local Linux server system, including user, software, file, printer, and network management.
· Re-architected local network implementations to optimize design and functionality, including network redesign for branches/campus locations.
· Monitored performance and ensured network system availability and reliability.
· Monitored network system resource utilization, trending, and capacity planning.
· Researched and evaluated new cisco routing and switching technologies.
· Implemented OSPF, EIGRP, RIP v1 v2 & v5 v6 and BGP routing protocols. Familiarized with Cisco IOS, NX-OS, IOS-XR.
· Conducted LAN switching configuration and monitored Cisco switches (Catalyst 2950, 2960) and Multicast, VPN, engineered traffic control.
Certifications:
· CCIE R&S (#50740)
· SAS Certified Base Programmer for SAS 9
Education:
· Master of Science in Computer Science. University of Alabama, Huntsville, Alabama
· Master of Science in Space Physics, Bachelor of Science in Space Physics. Wuhan University, People’s Republic of China