rozmowa KONtrolowana

I was invited by Adam Lange and Adam Haertle to share my story in “rozmowa KONtrolowana” podcast (in Polish). I’d like to thank both of them and of course all of participants for invitation, leading it, questions and nice way to spend time in familiar, geeky environment :) now - just view/listen to it your favorite format :)

May 16, 2021 · Łukasz Bromirski


starting from tomorrow, we’re launching another edition of PLNOG conference. as usually, I’d like to invite you to join us. I’ll be delivering session about Segment Routing with Piotr Jabłoński during second day of the conference, at 4:15pm. as Segment Routing was already covered couple of times, we’ll focus on practical deployment guide in existing networks. I’ll be also demoing some of the aspects we’ll cover live during the session....

September 27, 2020 · Łukasz Bromirski

SDN Affinity

recently thanks to Robert Pająk i’ve had an opportunity to speak at fall edition of Akamai Affinity. as the request was to cover the networking side of innovation, i did my best. actually, that was not so recently - back in november last year, to be exact. but indeed quite recently we’ve released news about our 400Gbit/s switch and on the Cisco Live! at Barcelona we’ve demonstrated for the first time ACI evolution - ACI Anywhere....

February 1, 2019 · Łukasz Bromirski


plnog, plnog and… it’s gone. twentieth edition - how the time flies… from the beginning we knew it may be hard, but we can make it. ’let’s target 60 people!’ was the second decision after we agreed to ‘do this’ and create PLNOG. 124 of you showed up. i don’t really remember all of the things that happened that day. and that was only 10 years ago! i remember only the fact, that we couldn’t fit you in one of the Cracows Wawel room that Andrzejs team was able to secure for this experiment....

March 26, 2018 · Łukasz Bromirski

plnog #18

after being absent on three PLNOG editions, i finally made it to the conference and to agenda. my presentation slides are here. i tried to cover everything important from networking perspective starting from IMP and ending on NPU, reprogrammable ASICs and what’s lurking in the future. of course if you’ll vote by your surveys, i hope to get back to delivering presentations. what’s interesting is that Krzysztof Kania also picked up architectural topics in his article about first routers - go read!...

March 10, 2017 · Łukasz Bromirski

world is changing

…and that’s good thing. with only two weeks to seventeed edition of PLNOGa we have bunch of interesting news. conference, that we started by discussing BGP, MPLS-TE and RSVP and role of 10GE interfaces (we’re in Europe and that was 2009!), today focuses on deploying SDN, and influence of IoT to service provider networks. we’re also discussing public cloud, hybrid cloud, software defined data centers (SDDC) and consequences of proliferation of overlay networks....

September 17, 2016 · Łukasz Bromirski

plnog #14

I was taking part of PLNOG for the last two days. i didn’t have opportunity to take part of the last edition and it’s a shame - we created this conference with Andrzej Targosz. a lot changed during last couple of years. but what was always key of the whole PLNOG - community - is only developing. i’m not about the direction, but the sole fact we have a lot of discussions about direction gives hope....

March 3, 2015 · Łukasz Bromirski

polish assembly hall and security

on the upcoming thursday, 10th of october at 7pm i’ll do a short talk with Maciej Broniarz from Warsaw University about security from not-so-typical point of view. please register and see you in Leon Koźmiński Academy hall.

October 6, 2013 · Łukasz Bromirski

Aegis at UW

Maciej Broniarz invited us to take part in new security focused conference. Aegis (just like Aegis - American integrated naval weapons system) will take place on 2nd and 3rd July at University of Warsaw. i hope that most of you will decide to take part of it, as judging from agenda. together with Maciej we’d like to also have a panel on DDoS attacks, and then we’ll deliver session together - ‘security by duct tape’....

June 19, 2013 · Łukasz Bromirski

IP network security

next thursday, april 11th, i’ll be visiting Warsaw University on invitation from Maciej Broniarz to have a chat about security from service provider point of view. note it will be mechnism and best practice related talk, not vendor pitch. i’ll mention blackholing as well ;) i may have some gadgets and freebies to give away - so please prepare good questions and see you there!

April 3, 2013 · Łukasz Bromirski


as you probably know already, next, jubilee edition of PLNOG is just around the corner. apart from stand and presentations, we’re be there with extended team to discuss our new products and solutions. and traditionally, we’ll also conduct couple of workshops for people interested in Cisco solutions: Advanced BGP workshops Deploying IPv6 MPLS basics one novelty we’ll offer is first of a kind offering in Poland - service provider design workshop....

January 18, 2013 · Łukasz Bromirski

Cisco SECURE - 22/23 november

we’re back with Cisco security focused conference in the fall. during Cisco SECURE 2012 we’ll try to demonstrate you the whole security architecture. during two full days of presentations, we’ll try to showcase you all interesting bits and pieces from our portfolio. we already have agenda up, and i’ll be happy to present along Gaweł our security solutions for cloud and data centers - including CSR 1000v, ASAv and other interesting products....

September 23, 2012 · Łukasz Bromirski

PLNOG #7 i EURONOG #1 - mission accomplished!

seventh edition of PLNOG just finished, but what’s more - we just did deliver also first edition of new project - EURONOG. during last three days we’ve had a lot of presentations, discussions, Q&A sessions and discussion panels. see you during next conferences!

September 30, 2011 · Łukasz Bromirski

we, 2001:420:80:1:c:15c0:d06:f00d

“Cisco eats in own dog food” or as you may elite-write-it: c15c0 d06 f00d. we announced participation in ISOC IPv6 day as a first vendor. some parts of our infrastructure serve IPv6 natively, but that’s a great opportunity to test it at scale - including hardware and software for systems that’s used for our internal and Customer services. among other things we’re testing AnyConnect 3.0 with native IPv6 support (public version is going to be available in couple of months), ACE 3....

June 8, 2011 · Łukasz Bromirski

plnog #6 - completed

i’d like to thank everyone that was part of last PLNOG edition. we introduced education track - that was your idea, voiced in chats and in surveys. it seems that the idea was right, so on september PLNOG edition we’ll continue with MPLS and QoS. also according to announcements, we did joint session with Rafał about architecture of ethernet switches and IP routers. i hope you liked it. we still miss real life use case sessions provided by you - service providers....

March 17, 2011 · Łukasz Bromirski

to queue or buffer? or not?

for some time Jim Gettys on his blog is writing a lot about problems caused by buffers, queues and other congestion avoidance mechanisms. you should really read about them. especially, if you’re in this group that believes big buffers solve all of the problems, and dropping traffic is absolute evil. nowadays it should be treated as absolutely normal thing - in most of the real life cases. on the upcoming, sixth PLNOG we may be able to tackle this problem (if there will be space in agenda), and have a shot at myths and legends related to network QoS....

January 16, 2011 · Łukasz Bromirski


i was stubborn - and while from the very first moment we’ve had a lot of challenges with the hotel infrastructure, i was able to run xTR routers during last PLNOG for LISP. no, it’s not about programming Cisco routers with LISP, but about new concept of Location/ID Split, that is new concept enabling you to treat traffic engineering in internet differently. in short - we still serve traffic like we always did (backward compatibility), but by assigning users and companies IPv4 and IPv6 addressing from special pools, we can treat this traffic in a different manner....

October 24, 2010 · Łukasz Bromirski

plnog 5 - sidr i lisp

during upcoming PLNOG i’ll cover two relatively new features available in Cisco gear. LISP which stands for Locator/ID SPlit is first, deployed and available both commercially and as open source code) solution that can enable internet to scale out without further growth of routing table size. it also brings advanced traffic engineering capabilities to pure IP networks. LISP was invented and is being actively developed by Cisco employees, working in different teams across research and development departaments....

October 4, 2010 · Łukasz Bromirski

plnog 5

fifth PLNOG edition is coming in on 21st and 22nd of october this year. this time we’ll have Merike Kaeo delivering keynote session. her topic of choice? security - suprising, isn’t it? :P as you can imagine we’re buttoning up agenda and it will be published soon. in the meantime, we already have over 200 attendees registered, which is great result given you still don’t know what you’ll be able to see :)...

August 28, 2010 · Łukasz Bromirski

after plnog #4

plnog, plnog and… gone. it looks like we have actually grown into the most serious and largest independent conference dedicated to people working on service provider networks in Poland - though I’m not going to fight anyone on the number of participants, this additional 100 people on each subsequent edition of PLNOG (we counted 395 participants this time!) speaks for itself. to the point that I’ve met many people for the first time in my life :)...

March 6, 2010 · Łukasz Bromirski

layer 2 and 3 security - live demo

if you haven’t seen my practical demonstration at SecureCON 2007, you can see extended version on this thursday - i’ll be visiting AGH in Cracow at 7:45pm to do “show & tell” session as part of netWork sessions. session will be extended as we’ll have more time. photos can be found here and more information about the session itself can be found here.

February 20, 2009 · Łukasz Bromirski

BGP Blackholing PL

for all those of you concerned with vanishing of BGP blackholing PL project page - please calm down. we’re moving. current page is here. in other news, i’ll host discussion panel on upcoming PLNOG 2009. we’ll touch on blackholingu and other best practices to increase security of internet infrastructure. i’ll be joined by Konrad Plich from TP SA and polish CERT representatives.

December 13, 2008 · Łukasz Bromirski

in a month from now, we’ll be launching first edition of PLNOG conference. we’re working to deliver a lot of interesting sessions. apart from many abroad presenters, we’ll host also our own, polish specialists. you’ll have a chance to meet Wojtek Apel (3S), Tomasz Paszkowski ( and Marcin Mazurek ( somewhere in the agenda there’s also my session about MPLS Traffic Engineering. before that, on Saturday and Sunday, I’ll deliver hands-on workshops on BGP and MPLS....

August 20, 2008 · Łukasz Bromirski

conferences, conferences...

summer holidays are in full swing - starting from 26th of July i’ll be running Cisco Academy courses at PROIDEA for CCNP. everyone who’s eager to have a good time learning and discussing technologies (way outside of official curriculum) should immediately contact academy reception. independently of that, we have two large conferences coming. at Cisco Expo 2008 i will deliver sessions on network architecture that minimizes the chances of becoming a victim of a DDoS attack and becoming part of botnet....

July 25, 2008 · Łukasz Bromirski

CONFidence 2008

during upcoming CONFidence 2008 conference, i’ll be delivering hands-on workshop about Cisco router security. of course you’re more than welcome :) video recording from SecureCON 2007 was published here.

April 12, 2008 · Łukasz Bromirski

Cisco Expo 2007

we just finished Cisco Expo, and there’s a lot of feedback and comments all around the internet - on or for example at barni.LOG. next week i should be able to present at SecureCON (well, if this time i’ll be able to get there in the first place :) ). i’ll be delivering a session about attacking and defending computer networks.

October 11, 2007 · Łukasz Bromirski

SMB bootcamp

6 people responded to my call for a Cisco FAQ PL conversion idea up until today… but unfortunately there are no results so far. well, maybe it’s time to roll up your sleeves and do it yourself … in unrelated, but more optimistic news - a week ago i finished delivering SMB Bootcamp for Cisco partners. there was a lot of work (3 days, 12-14 hours each). you can read a bit about it in the link above on the CCIE....

August 5, 2007 · Łukasz Bromirski

conferences, conferences

i’ll be presenting soon on following events: Noc Linuksozerców, in Kraków, 25-26 February FreeCON 2006 in Wrocław, 22-23 April CONFidence 2006 in Kraków, 13-14 May if you’d like to hear something specific during the sessions with regards to routing or security, please send me an email.

January 28, 2006 · Łukasz Bromirski

CONFidence #1 zakończone

after CONFidence conference, i’m making my slides available as promised. and i’d like to thank Andrzej Targosz for organizing the event.

October 22, 2005 · Łukasz Bromirski


between 15th and 16th of october in Kraków we’re organizing new security focused conference, organised by PROIDEA foundation. i’ll be speaking at the event as well - about BGP Blackholing PL project as well as security solutions from Cisco Systems. see you - there!

August 22, 2005 · Łukasz Bromirski