Packets DownRange
Interconnection, peering, Data centers. How the Internet works. IXPs, transit, and other topics. Routing and Control Planes such as BGP and OSPF protocols. RPKI and IP resources are also covered.
Over the years I have worked in hundreds of data centers. The number is probably closer to 1,000 than 100. Each data center has its own nuances and policies. This varies by company but can vary by data center within the same company. It can be quite the tangled mess to keep track of. As … Read more
I am starting to see the following scenario more and more as IPv4 space is hard to get, but isn’t. With ARIN it is still possible to get an IPv4 allotment. Many smaller ISPs qualify for a /24 and can get one if they wait long enough on the ARIN waiting list. a /24 of … Read more
https://www.arin.net/announcements/20200728/ ARIN Internet Routing Registry walkthrough.
https://radar.qrator.net/blog/as10990-routing-optimization-taleConclusion? Do not try to optimize the routes with automated software – BGP is a distance-vector routing protocol that has proved, throughout the years, its ability to handle the traffic. Software, wanting to “optimize” the system involving thousands of members would never be smart enough to compute all the possible outcomes of such manipulation.
https://cloud.google.com/blog/products/infrastructure/announcing-googles-grace-hopper-subsea-cable-system …We’re excited to announce a new subsea cable—Grace Hopper—which will run between the United States, the United Kingdom and Spain, providing better resilience for the network that underpins Google’s consumer and enterprise products.
Recently, there was a thread on the NANOG list asking what were somne favorite network troubleshooting tools. I have taken many of these tools and created the following list. http://ping.pe/Simple pingport and dig commands https://mtr.sh/BGP Looking glass https://perfops.net/mtr-from-worldTraceroute from various hosts on the net http://www.traceroute6.net/IPV6 tools (ping,traceroute,etc) https://dnsviz.net/Carious DNS tools http://irrexplorer.nlnog.net/Routing Registry object explorer https://mxtoolbox.com/DNS … Read more
Podcast: Play in new window | Download (Duration: 6:59 — 8.8MB)
After my blog post about Hurricane Electric and RPKi support, I was seeing some comments by folks that warrant some clarification. I put together a short midnight podcast on this. To summarize1. route original validation is not the same as having ROA’S with your RIR2. If you have an ASN you should have a peering … Read more
Ever wondered what routing registries are out there? Here is a list from irr.net
Anyone who has followed me knows I am a fan of Internet Routing Registries (IRR). However, there is a glaring issue with these registries.
What is VXLAN and how would service providers and WISPs use it in their networks?
I have a few nitpicky things and the video seems a little contrived, but it’s decent nonetheless. WISPs are not really mentioned, but others are not as well.