Richard Colohan

Background

About Richard Colohan

IP Network specialist with more than twenty years of experience designing and implementing large scale ISP and mobile telecom networks. I have worked with large ISPs in the UK and Ireland and as a consultant with Ericsson working with mobile and fixed operators in EMEA and US. I have extensive knowledge of the design, testing, implementation and support (3rd line) of IP networks, in particular service provider networks incorporating MPLS VPNs but also enterprise and data centre networks. I have worked across a range of vendor technologies; most predominantly Cisco and Juniper. I have experience in delivering projects in customer facing roles and the ability to manage time autonomously to accomplish this. Experienced with presenting technical solutions to various levels within customer organisations and adept at establishing technical contacts to enable the flow of information. Current Industry Certifications- Cisco CCNP Routing & Switching & CCNA- Juniper JNCIS & JNCIA certified.Specialties- Juniper Routing, Switching and Firewalls: MX960 series routers, EX-series switches, SRX5600 Firewalls, Juniper BNG- Cisco Routing and Switching: ASR9k, 6500,7200, 7600, 4500, GSR 3560X, 3750, ME3400, 2900, 2811 & ISR series - Cisco ASA 5500 series firewall, IPSec VPNs- Ericsson/Redback SmartEdge routers: SE400/800/1200- Nokia/Alcatel Lucent 7750- MPLS, RSVP, LDP, BGP, OSPF, ISIS, IPv6, IP Multicast & MVPN, QoS, L2VPN, L2TP, Switching technologies: 802.1Q, Rapid PVST+, Juniper Virtual Chassis, Cisco Stackwise - IP/MPLS Service Provider networks and Internet Peering (BGP) design and configuration- IP Network Operations including critical TAC case management and driving issues to completion- IP Network Design of ISP, Mobile Packet Backbone and VoIP networks- Data centre and device installation/maintenance and optical fibre experience.