Category: Routing
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DC@Home 4 – MPLS WAN improvements, monitoring and backup
So I have been working quite a bit on the MPLS WAN setup the past few weeks. Currently I have two sites running the new MPLS nodes as their gateway and one more currently staged which will be installed in the coming weeks. I still have some work to do for the sites which use…
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MPLS basics – tips & trix
This will be a living document, for troubleshooting and tracing MPLS traffic. The idea is for me and others to be able to reference this post for basic MPLS troubleshooting. < MPLS purpose and MPLS packet headers The original purpose of MPLS was to allow for faster packet routing through a provider network. This is…
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DC@Home 3 – Configuring the MPLS WAN
The past two weeks I have been working hard at getting the new MPLS WAN up and running. The idea is to build a scaleable solution, even though my MPLS cloud never will grow large enough to require the scalability. The plan is also to allow my colleagues to join the MPLS WAN, which means…
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Route-maps for VPNv4 filtering
In my series DC@Home I recently ran into the issue of how to filter which VRF:s should be allowed to propagate from the provider core, out to the customer sites. It turns our it is quite simple and can be done in a manner similar to prefix-lists for regular BGP peering. For VPNv4 multiplexing the…
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Filtering redistribution through route-maps
I recently ran into a case where a customer wanted to be able to monitor their primary and secondary WAN-links in order to determine if they are up. We owned the primary WAN-link, which served the primary router at the site. The secondary link was a DIA running DMVPN across the interwebz. In order for…