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About the BGP Stuck Route Observatory
The ThousandEyes BGP Stuck Route Observatory enables network operators to quickly and reliably identify whether performance issues they’re experiencing might be caused by a specific type of routing issue known as stuck BGP routes (also called BGP zombies) that occurs when routes improperly persist in the global routing table. Simply enter an ASN to check if that particular Autonomous System (AS) is potentially affected by a stuck route and gain the insights you need to efficiently resolve any issues and maintain high-quality digital experiences for your users.
It can be challenging for networking devices to maintain an up-to-date routing table: Prefixes on the Internet come and go frequently, and occasional bugs can lead to incorrect states. As the primary job of these devices is to move packets to the correct destinations, this can cause packet loss, routing loops, and difficult-to-troubleshoot scenarios.
With the BGP Stuck Route Observatory, network operations teams have powerful insights to help catch and troubleshoot these issues. Simply search for the AS you’re interested in and you’ll get information on whether the queried network is potentially affected by a stuck route (for example, a stuck route in an upstream provider or somewhere along the AS path), or whether the issue is potentially happening within the queried network.
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A BGP zombie, also known as a stuck route or ghost route, refers to a BGP route that should have been withdrawn from the global routing table but continues to persist. This means a network is advertising reachability to a prefix it no longer controls or can forward traffic for, leading to traffic blackholing or misdirection.
BGP zombies can cause significant issues by misdirecting traffic, leading to packet loss, increased latency, and application outages. They degrade user experience, complicate troubleshooting, and can mask other underlying network problems, impacting your network's reliability and performance.
Simply enter an ASN into our tool. The Observatory then uses Cisco ThousandEyes' global vantage points and BGP monitoring capabilities to analyze the routing tables and identify prefixes associated with your ASN that appear to be "stuck" or are behaving like BGP zombies.
The initial health check will highlight the top three potential BGP zombie routes affecting your ASN. This snapshot gives you immediate insight into critical issues. To learn how your team can access more routing health insights, reach out to the ThousandEyes team.
The top three results provide a quick, actionable overview of the most prominent BGP zombie issues impacting your ASN. To learn how your team can access more routing insights, reach out to the ThousandEyes team.
The ASN you provide is used solely to generate stuck route reports and is handled in accordance with our Privacy Statement.
Cisco ThousandEyes provides end-to-end visibility into Internet, cloud, and enterprise networks. Beyond identifying BGP zombies, we offer continuous monitoring of BGP routing, Internet outages, application performance, and network paths, helping you proactively manage digital experiences and troubleshoot complex issues across any network domain.
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Fair Data Use
The RIPE Routing Information Service (RIS) is a RIPE NCC service. With the help of network operators all over the world, RIS employs a globally distributed set of Remote Route Collectors (RRCs), typically located at Internet Exchange Points, to collect and store Internet routing data. Volunteers peer with the RRCs using the BGP protocol and RIS stores the update and withdraw messages. RIS data can be accessed via:
- RIPEstat, the “one-stop shop” for all available information about Internet number resources. RIPEstat uses individual widgets to display routing and other information;
- RIS Live, a real time BGP streaming API allowing server-side filtering of BGP messages by prefix or autonomous system;
- RIS Raw Data, available for each route collector, with state dumps and batches of updates made available periodically;
- RISwhois, that searches the latest RIS data for details of an IP address using a plaintext “whois”-style interface. It is useful when querying RIS data using scripts.