Can you build a modern SD-WAN network without using tunnels? 128 Technology thinks that you can and they have the services to prove it. Tom Hollingsworth takes a look at their presentation from Networking Field Day 20 and how they’re building tunnel-free networks.
routing
Using BFD to Track WAN Status and Change HSRP Priority
Daniel Dib comments on his blog: It’s been five years since I started this blog! Time flies and a lot has happened since. Thanks for being along for the ride. What better way to celebrate than a blog post? This post is going to be short and to the point. Many of us run HSRP or VRRP. […]
Do you really need to see all 512K Internet routes?
Ivan Pepelnjak of ipSpace.net comments: Last week the global routing table (as seen from some perspectives) supposedly exceeded 512K routes, and weird things started to happen to some people that are using old platforms that by default support 512K IPv4 routes in the switching hardware. I’m still wondering whether the BGP table size was the […]
The 512K route issue
Matt Thompson of Vegaskid’s net comments: Introduction I was first made aware of an issue when the hosting provider where I host this blog at were tweeting apologies on 12/08/14 for an interrupted service and I later received an excellently worded apology and explanation from them. A couple of colleagues also got in touch later […]
Show 31 — Don’t Take It Too Seriously
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A mixed bag of topics this week, some from people who have written in and some more general topics.
Capacity planning a firewall or router – what are the issues and technical limitations
Why are we using 1Gb Ethernet ports at the access layer when we don’t need them ?
A look at the Skype outage – Skype’s Blog
Using EIGRP as the IGP in an MPLS core – why not ?
The Lure of Layer 2
Unless you’re “in the know”, terms like “layer 2” can seem mysterious, making it all the more plausible when someone touts the benefits. It seems logical: “Bare-metal” communication must be better, faster, and cheaper than higher-level “everything over IP” approaches, right? But it’s not quite that simple.