Dmytro Shypovalov 🇺🇦 🇮🇪
@routingcraft.bsky.social
Network engineer, private pilot, founder of Vegvisir Systems (http://vegvisir.ie), developer of Traffic Dictator.
My blog: https://routingcraft.net/
My blog: https://routingcraft.net/
[Blog] Simplifying SR-TE with mesh templates routingcraft.net/simplifying-...
Simplifying SR-TE with mesh templates
A big problem with deploying traffic engineering is configuration complexity. This has now been solved.
routingcraft.net
December 10, 2025 at 2:55 PM
[Blog] Simplifying SR-TE with mesh templates routingcraft.net/simplifying-...
Traffic Dictator version 1.8 is available! Mesh-templates as a more powerful and flexible alternative to Flex Algo, and many other improvements.
vegvisir.ie/2025/08/31/t...
vegvisir.ie/2025/08/31/t...
Traffic Dictator v1.8 Release Notes – Vegvísir Systems
vegvisir.ie
August 31, 2025 at 8:44 PM
Traffic Dictator version 1.8 is available! Mesh-templates as a more powerful and flexible alternative to Flex Algo, and many other improvements.
vegvisir.ie/2025/08/31/t...
vegvisir.ie/2025/08/31/t...
Check out the validated SR-TE solution we have built with IP Infusion: vegvisir.ie/2025/08/18/v...
Validated SR-TE solution with TD and IP Infusion OcNOS – Vegvísir Systems
vegvisir.ie
August 18, 2025 at 3:12 PM
Check out the validated SR-TE solution we have built with IP Infusion: vegvisir.ie/2025/08/18/v...
TD release 1.7 is available! More options for path diversity, PCEP multipath, global adj SID support and more.
vegvisir.ie/2025/07/28/t...
vegvisir.ie/2025/07/28/t...
Traffic Dictator v1.7 Release Notes – Vegvísir Systems
vegvisir.ie
July 28, 2025 at 9:10 AM
TD release 1.7 is available! More options for path diversity, PCEP multipath, global adj SID support and more.
vegvisir.ie/2025/07/28/t...
vegvisir.ie/2025/07/28/t...
Traffic Dictator v1.6 is available! A major PCEP rework (including dual-PCE redundancy), multi-domain policy improvements and some bug fixes. vegvisir.ie/2025/07/07/t...
Traffic Dictator v1.6 Release Notes – Vegvísir Systems
vegvisir.ie
July 7, 2025 at 8:36 AM
Traffic Dictator v1.6 is available! A major PCEP rework (including dual-PCE redundancy), multi-domain policy improvements and some bug fixes. vegvisir.ie/2025/07/07/t...
Getting started with SR-TE never been easier: Traffic Dictator images are now available in a public Docker Hub repository: vegvisir.ie/2025/05/26/t...
Traffic Dictator images on Docker Hub – Vegvísir Systems
vegvisir.ie
May 26, 2025 at 8:59 AM
Getting started with SR-TE never been easier: Traffic Dictator images are now available in a public Docker Hub repository: vegvisir.ie/2025/05/26/t...
TD version 1.5 is available! Controller redundancy and various quality of life improvements: vegvisir.ie/2025/05/08/t...
Traffic Dictator v1.5 Release Notes – Vegvísir Systems
vegvisir.ie
May 8, 2025 at 1:35 PM
TD version 1.5 is available! Controller redundancy and various quality of life improvements: vegvisir.ie/2025/05/08/t...
[Blog] How SR-TE implementations how generate optimal segment lists in any topology routingcraft.net/generating-a...
Generating an optimal segment list for SR-TE
Segment Routing simplifies MPLS for the network operator – but not for the developer.
routingcraft.net
April 22, 2025 at 9:46 AM
[Blog] How SR-TE implementations how generate optimal segment lists in any topology routingcraft.net/generating-a...
A guide showing how to deploy TD in a Docker container on IPInfusion OcNOS and establish BGP and PCEP sessions between TD and host system:
vegvisir.ie/2025/03/31/d...
vegvisir.ie/2025/03/31/d...
Deploying Traffic Dictator in Docker on IP Infusion OcNOS – Vegvísir Systems
vegvisir.ie
March 31, 2025 at 2:03 PM
A guide showing how to deploy TD in a Docker container on IPInfusion OcNOS and establish BGP and PCEP sessions between TD and host system:
vegvisir.ie/2025/03/31/d...
vegvisir.ie/2025/03/31/d...
TD release 1.4 is available! New feature - disjoint paths for traffic engineering and some bug fixes.
vegvisir.ie/2025/03/21/t...
vegvisir.ie/2025/03/21/t...
Traffic Dictator v1.4 Release Notes – Vegvísir Systems
vegvisir.ie
March 21, 2025 at 10:28 AM
TD release 1.4 is available! New feature - disjoint paths for traffic engineering and some bug fixes.
vegvisir.ie/2025/03/21/t...
vegvisir.ie/2025/03/21/t...
TD release 1.3.1 is available, with some improvements and bug fixes.
vegvisir.ie/2025/02/21/t...
vegvisir.ie/2025/02/21/t...
Traffic Dictator v1.3.1 Release Notes – Vegvísir Systems
vegvisir.ie
February 21, 2025 at 11:54 AM
TD release 1.3.1 is available, with some improvements and bug fixes.
vegvisir.ie/2025/02/21/t...
vegvisir.ie/2025/02/21/t...
A new blog post about using BGP and multiple service loopbacks to steer traffic into MPLS-TE and SR-TE policies:
routingcraft.net/loopback-as-...
routingcraft.net/loopback-as-...
Loopback as a Service
Methods of steering traffic into MPLS and Segment Routing LSP is one of the least standardized and most confusing parts of traffic engineering.
routingcraft.net
February 18, 2025 at 4:22 PM
A new blog post about using BGP and multiple service loopbacks to steer traffic into MPLS-TE and SR-TE policies:
routingcraft.net/loopback-as-...
routingcraft.net/loopback-as-...
[Blog] RFC8277 breaks backwards compatibility routingcraft.net/rfc8277-brea...
RFC8277 breaks backwards compatibility
A quick public service announcement for anyone implementing BGP-LU or deploying it in a multivendor environment.
routingcraft.net
December 21, 2024 at 9:19 AM
[Blog] RFC8277 breaks backwards compatibility routingcraft.net/rfc8277-brea...
Question to PCEP / Traffic engineering gurus - are there positive use cases of multivendor PCEP deployments? E.g. Cisco/Juniper/Nokia PCE with another vendor PCC.
RFCs are so vague like it's made on purpose for vendors to interpret everything in their own unique way.
RFCs are so vague like it's made on purpose for vendors to interpret everything in their own unique way.
December 13, 2024 at 11:55 AM
Question to PCEP / Traffic engineering gurus - are there positive use cases of multivendor PCEP deployments? E.g. Cisco/Juniper/Nokia PCE with another vendor PCC.
RFCs are so vague like it's made on purpose for vendors to interpret everything in their own unique way.
RFCs are so vague like it's made on purpose for vendors to interpret everything in their own unique way.
I hate writing PCEP code so much. Just to generate one message, I need to check at least 5 different RFC. Even BGP-LS wasn't that bad.
December 6, 2024 at 2:10 PM
I hate writing PCEP code so much. Just to generate one message, I need to check at least 5 different RFC. Even BGP-LS wasn't that bad.
Wonder why I keep saying PCEP is ridiculously overengineered?
A niche protocol doing one small thing has more IANA assigned parameters than BGP. Even the page is much bigger.
PCEP page references 45 RFC (vs 63 for BGP) but has more drafts so it's pretty close.
A niche protocol doing one small thing has more IANA assigned parameters than BGP. Even the page is much bigger.
PCEP page references 45 RFC (vs 63 for BGP) but has more drafts so it's pretty close.
December 5, 2024 at 12:11 PM
Wonder why I keep saying PCEP is ridiculously overengineered?
A niche protocol doing one small thing has more IANA assigned parameters than BGP. Even the page is much bigger.
PCEP page references 45 RFC (vs 63 for BGP) but has more drafts so it's pretty close.
A niche protocol doing one small thing has more IANA assigned parameters than BGP. Even the page is much bigger.
PCEP page references 45 RFC (vs 63 for BGP) but has more drafts so it's pretty close.
Simulated engine failure- glide approach on a short runway
November 26, 2024 at 9:13 PM
Simulated engine failure- glide approach on a short runway