I was having this discussion with someone recently on possible software to manage an IXP. Lately, IXP Manager has become the de-facto choice for managing IX. It’s a good tool. Nick and INEX team has built a fantastic open-source tool. But I still feel it’s a bit overloaded for a small 1-2 DC IX operation. If I have to set up a small to mid-size IX, I would rather do that with arouteserver instead of IXP Manager as I did in case of BharatIX in Mumbai (until it shutdown!