Resume of Csaba Mate

You can reach me on email or cell-phone: .

Skills

Networking: OSI, TCP/IP, IPsec, VPN, QoS, BNG, IPoE, PPPoE, Multicast, PIM, IGMP, MSDP, VXLAN, PBB, VPLS, EVPN
Routing: RIP, RIPv2, RIPng, OSPF, OSPFv3, EIGRP, IS-IS, BGP, MP-BGP, MPLS, LDP, RSVP-TE, SR-MPLS, SRv6
Switching: VLAN, VTP, STP, RSTP, MSTP, WLAN, LACP, PaGP
Programming: Python, Tcl/tk, bash, C, Java, Pascal, Basic, Assembly for various CPUs
Dataplane programming: p4.org, npLang.org, DPDK, eBPF/XDP
OSes: Cisco IOS-XR, Cisco IOS-XE, Cisco NxOS, Cisco IOS, Linux
Certifications: CCIE-SP, CCIE-Ent (RS)
Education: programmer-mathematician degree from University of Szeged

Past experience

2024-: Got a job at digi as senior network engineer.

2015-2023: Got a job at hbone as senior network engineer. They are the local NREN connecting the universities, intermediate schools country-wide. Here I was tasked with various network modernization and network development tasks like converting the core network from IOS-XE to IOS-XR, introduction of seamless MPLS, SR-MPLS and LDPv6 in the core, design and deploy a DDOS filtering system, to implement their public cloud from the networking side, or to bring up their mass WLAN offering. Starting with GN4-3, I got involved into an EU-EC funded research project to provide a dataplane to whiteboxes around the intel tofino ASICs. Lately I got involved to IETF standardization work too.

2005-2014: Got a job at lnx ltd, later kfki ltd, nowadays known as t-systems.hu as a network engineer. they are a cisco partner and they acted like a value added reseller. During that time I was tasked with design and implementation and external supporter of various enterprise and telco projects.

Professional career in details

2007: various telco core projects based on cisco
2007: onyf.hu wan design and implementation based on cisco
2008: various telco core projects based on cisco
2008: audi.hu lan design and implementation based on cisco
2009: various telco core projects based on cisco
2009: orfk wan design and implementation based on cisco
2009: vpop wan design and implementation based on cisco
2009: kum lan wan design and implementation based on cisco
2009: mgszh wan design and implementation based on cisco
2010: various telco core projects based on cisco
2010: hbone core redesign based on cisco
2010: hungarian air traffic control (bud-air public aviation) lan wan design based on cisco
2011: various telco core projects based on cisco
2011: t-systems.hu started to sell a re-branded freeRouter
2012: various telco core projects based on cisco
2012: znet core design and implementation based on cisco
2012: country-wide schengen mobile backup design and implementation based on freeRouter rebranded as t-systems router
2013: various telco core projects based on cisco
2014: hbone turned off layer2 in the capital rings citywide based on cisco
2015: hbone traffeng design and implementation based on cisco
2015: hbone bgp redesign based on freeRouter as route reflector and aggregate/bogon/flowspec originator
2016: hbone ipv6 ldp design and implementation based on cisco
2016: hbone segment routing design and implementation based on cisco
2017: hbone rpki design and implementation based on cisco and ripe validator
2017: hbone ddos protection design and implementation on cisco and netscout.com/arbor
2018: implemented, interop-tested, then co-author and still using bgp compressed updates in freeRouter
2018: sulinet redesign and implementation involving 5k cisco cpe in an mpls vpn for hbone
2018: replaced hbone 3rd route reflector to a virtual cisco
2018: hbone igp and bgp checks now based on freeRouter nrpe exports to remove snmp from hbone
2018: hbone segment routing/mpls design and implementation on cisco
2018: hbone address spoofing detector, own prefix visibility detector on freeRouter
2019: hbone upgrade their purpose built cloud installations cloud4education services to openstack on cisco
2019: looking glass on freeRouter: "telnet lg.hbone.hu"
2019: new geant eu/ec funded research&development project gn4-3-wp6: rare/freeRtr, an api to export all the computed tables and necessary configurations to whitebox routers/switches
2020: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2020: various design, architectural or occassional troubleshooting, consultancy services to hbone on cisco ios xr, xe, nxos and openstack integration
2020: protocol level reportings, checks from the running core network of hbone on freeRouter
2021: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2021: various design, architectural or occassional troubleshooting, consultancy services to hbone on cisco ios xr, xe, nxos and openstack integration
2021: protocol level reportings, checks from the running core network of hbone on freeRouter
2022: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2022: various design, architectural or occassional troubleshooting, consultancy services to hbone on cisco ios xr, xe, nxos, aci-apic and openstack integration
2022: initial bringup of hbone aci-apic based cloud
2022: participate in designing and running acceptance tests of the hbone seamless mpls segments
2022: protocol level reportings, checks from the running core network of hbone on freeRouter
2023: new geant funded eu/ec research&development project gn5-1-wp6: rare/freeRtr, an api to export all the computed tables and necessary configurations to whitebox routers/switches
2023: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2023: various design, architectural or occassional troubleshooting, consultancy services to hbone on cisco ios xr, xe and nxos, aci-apic and openstack integration
2023: protocol level reportings, checks from the running core network of hbone on freeRouter
2023: realtime fullbgp powered whatsmy-aspath extension to my whatsmyip at www.nop.hu from the help of hbone fullbgp on cisco ios xr then a chain of freeRouters

Professional certifications

2005: certified as cisco CCNA
2006: certified as cisco CCNP
2007: Service Provider cisco CCIE certification number #19295
2008: Enterprise (Routing&switching) cisco CCIE certification with the same number #19295
2011: cisco CCIE recertification
2013: cisco CCIE recertification
2015: cisco CCIE recertification
2016: 10 years of active 2x cisco CCIE, now no need to recertify anymore to keep the number
2017: cisco CCIE recertification
2019: cisco CCIE recertification
2021: cisco CCIE recertification
2023: cisco CCIE recertification

i speak English and Hungarian equally good especially when it comes to tech.

Education, self-development

to become a better engineer by better understand the protocols that empower the internet

1979: i was born in late october in Budapest, Hungary, Eastern Europe
1986: studied at Bikszadi street elementary school
1990: got my sharp pc1500 with a color pen printer and a tape drive
1991: got my second sharp pc1500 without the optional accessories so i started programming it in basic language
1992: studied at Gardonyi Geza street elementary school
1994: won a programmer "competition" at Leovei Klara highschool so i started on programmer faculy
1995: started ProgiBBS and SzuNET, a country-wide alternative to fidonet.org based on BugOS
1996: got my driving license
1998: finished at elementary school
1998: first place at country-wide innovocion competition with BugOS project
1998: started at Gabor Denes, now university, but i left it
1999: registered a tcp/udp-ip port 2554 from iana
1999: third place at country-wide innovociot competition with virtual circuits on BugOS
1999: started programmer/mathematics at elte.hu university, but i left it
2000: started my server www.nop.hu on BugOS
2000: started programmer/mathematics at University of Szeged then a recorded presentation about dh, rsa, dsa & ec (hungarian tech text :)
2001: internet coffee at Vaci street, Budapest/Hungary, called AMIN based on BugOS
2001: 6th european congress for nurses interested in stomacare webpage hosting based on BugOS
2002: the BEE country-wide ordering system for grocery stores, based on BugOS
2002: found a pos terminal near the recycle bin
2002: sztaki.hu ordered the development of a x25-tcp gateway based on BugOS, to sell it to otpbank.hu
2003: started cisco CCNA course at university
2003: own terminal server at the university labour on BugOS
2004: started lectouring at university cisco CCNA course
2005: ipv6 multicast research&development at university project
2005: given lecture hours at university's cisco CCNA course
2009: new project: freeRouter
2010: full-bgp feed from hbone based on freeRouter
2013: hbone use freeRouter as rr sanity checker, hijack detection, igp reportings, etc
2014: hbone use freeRouter as primary and backup route reflectors
2015: freeRouter interop test with virtual cisco and juniper routers at greant ovs and p4 testlabs
2015: presentation about freeRouter at ripe71
2016: presentation about freeRouter at peering days
2018: hbone dedicated vpn route reflectors on freeRouter
2019: probe network on freeRouter
2019: p4lang api design in rare/freeRtr
2019: p4lang/bmv2 implementation in rare/freeRtr
2020: packet forwarding engine with p4lang/dpdk for rare/freeRtr
2020: p4lang/libpcap implementation in rare/freeRtr
2021: packet forwarding engine with intel tofino 1 2 3 p4lang programmable asic for rare/freeRtr
2021: packet forwarding engine with xdp/ebpf (in-kernel packet forwarding) for rare/freeRtr
2022: improvements here and there to rare/freeRtr, thanks to geant
2022: helping hbone to measure their cisco maximum bgp peer limits on freeRouter
2022: implementated and co-author of an ietf bgp draft about colorful labelled unicast, an rfc3107+rfc3032 for plane-a-b mpls cores on freeRouter
2022: develop on the nvidia doca dpu as dpdk forwarder/prefilterer
2023: helping hbone to bump their freeRouter installations to get upgraded at the os levels without a full vm reinstall
2023: implementated an ietf bgp draft, about colorful labelled unicast, an rfc3107++ for plane-a-b mpls cores on freeRouter
2023: improvements here and there to rare/freeRtr and all of it's dataplanes, thanks to geant
2023: rare/freeRtr team got invitation to the eantc.de world sd-mpls congress
2023: more info about the eantc.de event at the report, bgp-ct with rare/freeRtr-juniper in a 4 box topology, explained in a short post and video on a usecase
2023: a bday cake like virtual routers from cisco, juniper and my local nren for on the same day as they came up with p4 programmable whitebox routers like the c8808 chassis based and various ptx1k pizzaboxes from the 800gpbs/port era to interop/test/play with
2023: participation in the yearly internet engineering task force hackathon plugfest about BIER with nokia and juniper

Foreseenable future

2024: coauthor on a colorful bgp mpls rfc extension for plane-a-b(-c) paralell underlays for mpls layer2/layer3 (e)vpns
2024: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2024: planned end of geant sponsored project: rare/freeRtr for tofino 1, 2, 3, welcome to the 800gbps "photonic internet" era
2025: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2026: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2026: forever 2x cisco CCIE emeritus, now without a yearly fee, from now for free like the beer
2027: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2028: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
2029: participation in the yearly internet engineering task force hackathons with a next protocol of team's choice
9999: still valid 2x cisco CCIE emeritus

my hobby is developing freeRouter and tech-blogging about the bits and bytes enpowering the inter-networks because i can learn a lot from it about the protocols we used/use/will use worldwide...