Mohammad Ehteshamul Haque Email & Phone Number

United Arab Emirates

Dhaka, Bangladesh

Under the direct supervision of Head of Core Network:* Design new templates for the configuration part of the devices for PE devices according to the specified requirements from the client and reflecting current network architecture of the company. This includes, but not limited to, the following technology:* EIGRP, OSPF, BGP for routing in both Service Provider Scenario;* MPLS with VRF-LITE, PE-CE Routing with OSPF, Career Supporting Career using MP-BGP, MPLS AToM, MPLS TE for… Show more Under the direct supervision of Head of Core Network:* Design new templates for the configuration part of the devices for PE devices according to the specified requirements from the client and reflecting current network architecture of the company. This includes, but not limited to, the following technology:* EIGRP, OSPF, BGP for routing in both Service Provider Scenario;* MPLS with VRF-LITE, PE-CE Routing with OSPF, Career Supporting Career using MP-BGP, MPLS AToM, MPLS TE for optimizing Backbone Traffic;* QOS in Network using Policing, Shaping, CBWFQ, NBAR;* Monitor overall Network Equipments and Server Farm for load capacity and plan for further expansion.* Monitor the AAA system and its policy to maintain devices currently running in the network for connecting the clients.* Ensure that each and every change in the network is made according to the Corporate Change Management Policy.* Maintain strict liaison with the Documentation officer so that each and every change in the network is well documented. The Documentation Team is also responsible for managing all the training materials developed by me and my team.* Ensure proper usage of IP addressing following APNIC Guideline. Distribute IP address scheme for using in International Environment making the proper usage of IPv4 and IPv6 addressing without any wastage.* Plan, coordinate and deploy connectivity with top tier service provider for provisioning IP Transit, IPLC, Global MPLS for the clients.* Working experience and expertise in* Hardware: Cisco 7600, 12000 series routers in both IOS and IOS-XR environment; Metroethernet 4900 series switches.* Software: Netflow, Cacti, Centreon, for monitoring network and server health; RANCID for configuration change management; TACACS for AAA; Scripting using PERL and Expect; FreeBSD and CentOS as the Core Operating System for the Services.* Infrastructure: Complex Routing Architecture for peering clients; Manage the MPLS based network. Show less

Under the direct supervision of System Administrator:* Design new templates for the configuration part of the devices for both CPE and PE devices according to the specified requirements from the client and reflecting current network architecture of the company. This includes, but not limited to, the following technology:* Loop Avoidance and Load Balancing using RSTP, MSTP; Backbone Capacity increment and Load Balancing using Etherchannel or LACP or PAGP, Private/Public VLAN, QinQ… Show more Under the direct supervision of System Administrator:* Design new templates for the configuration part of the devices for both CPE and PE devices according to the specified requirements from the client and reflecting current network architecture of the company. This includes, but not limited to, the following technology:* Loop Avoidance and Load Balancing using RSTP, MSTP; Backbone Capacity increment and Load Balancing using Etherchannel or LACP or PAGP, Private/Public VLAN, QinQ, Layer 2 Tunneling Protocol for use in Service Provider Scenario.* RIP, EIGRP, OSPF, BGP for routing in both Service Provider Scenario and Client End Scenario;* MPLS with VRF-LITE, PE-CE Routing with RIP/OSPF, Career Supporting Career using MP-BGP VPNv4, MPLS AToM, MPLS TE for optimizing Backbone Traffic;* QOS in both L2 Network and L3 Network using Policing/Shaping at L2 level while using Policing, Shaping, CBWFQ, NBAR in Layer3;* Design and modify NMS to meet the new requirements of clients.* Monitor the AAA system and its policy to maintain almost 150 devices currently running in the network for connecting the clients.* Ensure that each and every change in the network is made according to the Corporate Change Management Policy.* Regularly monitor, analyze and mitigate network based attacks using various open source tools.* Working experience and expertise in* Hardware: Cisco 7200, 7500, 12000 series routers; Metroethernet 2400 and 3400 series switches.* Software: Netflow, Nagios, Cacti, Centreon, for monitoring network and server health; Xen and Vmware for virtualization and Server Consolidation; RANCID for configuration change management; TACACS, for AAA; MySQL for Database and Database Clustering; Scripting using PERL and Expect; FreeBSD, Redhat and Debian as the Core Operating System for the Services.* Infrastructure: Complex Routing Architecture for peering clients; Manage the MPLS based network Show less

Under the direct supervision of System Administrator:* Design new templates for the configuration part of the devices for both CPE and PE devices according to the specified requirements from the client and reflecting current network architecture of the company. This includes, but not limited to, the following technology:* Loop Avoidance and Load Balancing using RSTP, MSTP; Backbone Capacity increment and Load Balancing using Etherchannel or LACP or PAGP, Private/Public VLAN, QinQ… Show more Under the direct supervision of System Administrator:* Design new templates for the configuration part of the devices for both CPE and PE devices according to the specified requirements from the client and reflecting current network architecture of the company. This includes, but not limited to, the following technology:* Loop Avoidance and Load Balancing using RSTP, MSTP; Backbone Capacity increment and Load Balancing using Etherchannel or LACP or PAGP, Private/Public VLAN, QinQ, Layer 2 Tunneling Protocol for use in Service Provider Scenario.* RIP, EIGRP, OSPF, BGP for routing in both Service Provider Scenario and Client End Scenario;* MPLS with VRF-LITE, PE-CE Routing with RIP/OSPF, Career Supporting Career using MP-BGP VPNv4, MPLS AToM, MPLS TE for optimizing Backbone Traffic;* QOS in both L2 Network and L3 Network using Policing/Shaping at L2 level while using Policing, Shaping, CBWFQ, NBAR in Layer3;* Regularly monitor, analyze and mitigate network based attacks using various open source tools.* Working experience and expertise in* Hardware: Cisco 7200, 7500, 12000 series routers; Metroethernet 2400 and 3400 series switches.* Software: Netflow, Nagios, Cacti, Centreon, for monitoring network and server health; Xen and Vmware for virtualization and Server Consolidation; RANCID for configuration change management; TACACS; MySQL for Database and Database Clustering; Scripting using PERL and Expect; FreeBSD, Debian and Redhat as the Core Operating System for the Services. Show less