Everything tagged bgp, newest first. Tags come from the classifier reading each item's summary; 394 tags used 25 times or more have their own page.
SR-MPLS can replace traditional MPLS control planes like LDP or RSVP without disrupting a BGP-free transport core, as shown in a workshop scenario where the same core topology continued working after swapping in SR-MPLS and adding hosts plus BGP routing.
A BGP hijacking incident that poisoned production software reveals how fragile software supply chains can be when network routing is compromised, highlighting the need for stronger verification, monitoring, and resilience across build and distribution systems.
RPKI has significantly improved protection against prefix hijacking, but a broader review of BGP attacks shows that four attack classes remain unaddressed by cryptographic validation and still depend on local filtering, static limits, and reactive mitigation.
RFC 9234 enables routers to autonomously prevent route leaks by utilizing BGP Roles and the Only to Customer attribute, with observations revealing unexpected behavior from two Tier 1 networks stripping the OTC attribute.
Sakar commented on a blog post about Cisco IOS/XE's BGP CONNECT state, prompting a scenario test to verify TCP SYN behavior between routers.
The IETF 126 meeting discussed advancements in BGP security, focusing on BGP ORIGIN, ASPAs, PAVA, and ASRAs, aiming to enhance the robustness and reliability of internet routing.
In-depth testing reveals that nearly 70% of BGP paths undergo ORIGIN attribute rewrites by transit providers, impacting global routing and suggesting the need to deprecate ORIGIN in route selection.
The netlab release 26.07 introduces new plugins and updates, including multiserver distribution, GRE and WireGuard tunnel support, and enhancements to BGP and OSPF functionalities across multiple platforms.
The technology adoption curve remains constant, but as the Internet and BGP reach saturation, strategies for planning, investment, and operation must adapt to this mature phase.
APNIC Members can now use MyAPNIC and the Registry API to publish ASPAs, enhancing route leak detection and Internet routing integrity.
Operators with strong BGP knowledge often create ROAs infrequently and may not fully understand their behavior, but ROOTBEER assists in clarifying considerations for creating ROAs.
Cisco ThousandEyes has developed the BGP Clock methodology to measure and address the ongoing issue of BGP stuck routes, which remain a significant challenge for network operators.
Modern enterprise and cloud data centers widely use BGP, EVPN, and VXLAN to create scalable network fabrics, with EVPN serving as the preferred control plane for endpoint reachability distribution.
Designing and structuring BGP Router IDs in IPv6-native networks involves careful planning to ensure network stability, scalability, and efficient routing.
BGP's susceptibility to routing hijacks and path leaks can be mitigated by RPKI, but First AS enforcement offers a simpler solution for certain forged paths.
The article argues against dismissing ephemeral BGP leaks during path hunting, highlighting their role as indicators of inadequate BGP route policy enforcement, which could lead to security vulnerabilities.
Doug Madory explains that many BGP route leaks identified by automated systems are temporary and part of normal convergence, yet they remain significant for routing security despite rarely affecting traffic.
The netlab release 26.05 introduces support for global BGP routes with SRv6 next hops, Junos routing enhancements, streamlined FortiOS configuration, and Juniper cSRX container support.
SCION aims to replace BGP but struggles against cost-driven network decisions in the competitive carrier environment.
At ITNOG 10, a mini-Interop-style lab showcased a complex network setup with diverse vendor devices, suggesting the use of netlab for efficient IP addressing and configuration.
Geoff Huston evaluates the relevance of the CIDR Report, a three-decade-long dataset tracking excessive data transmission in BGP, questioning its current value.
Naveen Kumar Devaraj identified that Arista EOS generates MAC-IP routes with and without IP addresses, doubling the EVPN BGP table size, and shared insights via a LinkedIn comment.
The analysis of public BGP data reveals insights into the operational behaviors and effectiveness of five major scrubbing services in mitigating network threats.
An analysis of over 80 billion BGP updates shows that 'noisy' updates inflate MRT archives, bias measurements, and emphasize the need for careful interpretation of BGP data.
Clos-based leaf-spine architectures have dominated data center networking for their scalability and integration capabilities, but large-scale AI training reveals their limitations.
Recent updates to online BGP labs enhance device flexibility, allowing various network operating systems as external routers, but limitations remain in configuring all BGP features, especially with unsupported devices, which may cause lab failures.
The netlab release 26.04 introduces support for Extreme Networks EXOS, new BGP attributes, and static route support on various platforms, enhancing network configuration and management capabilities.
FRRouting release 10.6 introduced BGP IPv6 VTEP support for EVPN deployments, but compatibility issues arose with Arista EOS in a test setup.
Recent updates to online BGP labs now allow the use of various external lab devices, enhancing flexibility and efficiency in practicing BGP features without extensive preparation.
A brief BGP hijack incident in 2025 highlighted vulnerabilities in routing security, particularly when attackers target weaknesses during provider onboarding processes.
While testing IPv4 ECMP in Arista cEOS containers with an MPLS/anycast scenario, MPLS labels were missing in ICMP replies, prompting an investigation into PE/P-router behavior using a BGP-free core.
Thomas Alfroy and Thomas Holterbach from the University of Strasbourg introduce bgproutes.io, a novel platform for sharing BGP data with the community, enhancing accessibility and collaboration.
The Online BGP Labs project initially chose Cumulus Linux for its polished interface and virtual machine support, but later faced challenges in maintaining a free, user-friendly CLI solution.
Bgproutes.io offers advanced routing observability by aggregating data from numerous sources and providing tools for real-time insights, including BMP support and integrated RPKI ROV and ASPA validation.
The netlab release 26.03 introduces significant enhancements including new Cisco IOS XR features, Juniper cRPD support, EVPN/VXLAN on Juniper, OpenBSD BGP support, and SR-MPLS for OSPFv2 across multiple platforms.
The article discusses building an MPLS/VPN lab using netlab with an SR-MPLS core, utilizing Arista EOS and Linux containers, and provides a lab topology available on GitHub.
Deploying a BGP route reflector for MPLS 6PE or L3VPN services requires IPv6 routing on Cisco IOS, even though it only handles control-plane activities, due to configuration issues with labeled IPv6 and VPNv4/VPNv6 address families.
The LinkedIn post discusses a proof-of-concept involving AI agents communicating using BGP, with further details available on GitHub, although the concept initially seems intriguing, deeper examination may reveal complexities.
On February 20, 2026, Cloudflare experienced a service outage affecting some customers using the Bring Your Own IP service due to withdrawn Internet routes via BGP.
The article discusses an inference method leveraging spatial correlation between a network prefix's origin and the router's location to enhance location community attachment.
The content discusses integrating the EVPN control plane with existing VXLAN setups, maintaining the data plane while using EVPN for ingress replication and MAC-to-VTEP mappings.
Netlab can be used to create training labs where students configure devices like RTR in a pre-configured environment, enhancing self-study and classroom training experiences.
An automated routing policy configuration error at the Miami data center led to an unintended leak of Border Gateway Protocol prefixes, prompting discussions on the impact and subsequent policy changes.
Dr. Yakov Rekhter's 2007 lecture, "BGP at 18: Lessons In Protocol Design," is essential viewing for those interested in networking history.
Geoff Huston examines potential shifts in the routing system's stability by 2025, analyzing factors that may influence its reliability and efficiency.
Geoff Huston's annual analysis of BGP routing table growth for 2025 provides insights into current trends and future projections, highlighting the challenges and developments in internet infrastructure.
On January 2, a BGP anomaly in Venezuela sparked speculation, prompting an investigation into BGP route leaks to determine its cause.
Ethan and Holly preview their 2026 plans, hinting at topics involving letters like B, G, P, Q, o, S, A, and I, while also addressing listener questions in their latest episode.
For stress relief while troubleshooting DNS BGP network server issues, visit http.pizza, then consult resources like Wikipedia's HTTP status codes list.
The netlab release 25.12 introduces enhanced Cisco IOS/XR support, VXLAN-over-IPv6 on Arista EOS, new BGP community lists, and improved validation features for network configuration and testing.