Technical Support Professional (L3)
Budapest, Hungary
Owning, driving, communicating, updating and proactively representing BT in all domains of activitiesManage supplier activities for VIP customer (e.g. driving/escalating 3rd party agents to dispatch and repair faults to meet our service level agreements)- Conducting complex troubleshooting across various network technologies (Cisco platforms, VoIP)- Collaborating in technical calls providing cross-platform support- Handling, documenting and implementing infrastructure change requests- Assisting 1st and 2nd Line agents in their daily tasks- Handling queries from internal and external customers- Providing process improvement input and collaborate to the continuous improvement journeyTechnical responsibilities: Cisco Routers – 1841, 2611, 2620 series, Cisco Switches – 3500, 3750 series. Cisco Internetwork Operating System (IOS), Cisco IOS upgrades and recovery (FTP, TFTP, and MD5 verify) OSI and TCP/IP models, TCP and UDP protocols, Configure, verify, and troubleshoot IPv4 addressing and subnetting IPv4 address types Unicast, Broadcast, Multicast, Configuration and troubleshooting of VLANs Configuration and troubleshooting of interswitch connectivity, trunk ports , DTP, VTP (v1&v2), Native VLAN, Configuration and troubleshooting of STP protocols, PVST+ and RPVST+ Cisco Discovery Protocol, LLDP, EtherChannel Configuration and troubleshooting of inter-VLAN routing, static routing and dynamic routing Troubleshoot single area and multi-area OSPFv2 for IPv4 DNS lookup, DHCP, TFTP, DNS, HSRP, NAT, PAT, NTP operation, port security DHCP snooping Configuration of Access Control Lists (ACLs) Basics of SNMPv2, SNMPv3, MPLS, Basics of BGP Backup and restore device configuration Troubleshoot network connectivity issues using ICMP Cisco IOS upgrades and recovery (FTP, TFTP, and MD5 verify) DHCP SPOOFING, VLAN PRUNNING, TAGGING, Ping and traceroute