Midwest Internet Exchange

Route Server Communities

We have started to implement communities in the route servers. 

The most useful one we’ve found so far is that you can advertise a community of 0:{insert AS here} and it will not advertise that prefix to that AS via the route servers. It is useful if you have some specific prefixes you don’t want someone to have for one reason or another, be it long-term or just for testing. If that other network is having some issues at the moment with their IX setup, you can block your prefixes from them for the duration of the issue.

Using a community of 0:13681 (the route servers’ ASN) won’t advertise that route to anyone.

We’ll report more as we have more tested. If you have any specific requests for communities, please let us know so we can best accommodate you.

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