When working with networks, you have to deal with different devices from different vendors. When it comes to SFP tranceivers, you often need vendor specific transceivers because vendors tend to apply some sort of vendor locks. Despite SFP beeing a standard, you need SFP transceivers from your device's vendor. I found a nice solution to circumvent these requirements.
Over time, jumpNet's VPN servers became bottleknecks regarding bandwidth. Currently, the best VPN server in jumpNet offers 20MBit/s upstream, which is okay but not sufficient for large file transfers like backups. In this article, I describe how to build a L2TP/IPSec VPN server with OSPF rotuing capability.
jumpNet is fine - no question. But it's small and some how I got used to it. There is little new to discover (maybe I'm going to realize a point-to-point radio link this summer, but that's another story) and so I decided to follow up an old plan: Connecting the jumpNet to dn42.
Some time ago I moved from Zähringe Straße to Merzhauser Straße. What a lucky coincidence, that I moved into the appartment of one of the jumpNet participants. Time to change the topology of the jumpNet a bit.