Networking
What is IXP?
An IXP is a shared physical facility where networks interconnect directly rather than paying a transit provider to carry traffic between them. Direct exchange traffic is shorter, cheaper and usually lower-latency. Presence at DE-CIX, AMS-IX, LINX or Equinix Ashburn is a meaningful signal about a provider's network quality.
Why IXP matters
Direct exchange traffic is shorter, cheaper and usually lower-latency. Presence at DE-CIX, AMS-IX, LINX or Equinix Ashburn is a meaningful signal about a provider's network quality.
IXP in practice
When you run a server at an IXP-connected provider, check the route table before you build anything. Look for which upstreams your provider announces and whether the peer list includes the major exchanges. If a latency-sensitive service sat behind transit-only uplinks, every packet paid per-megabyte and took a longer path. Being on the exchange means your traffic to other members hops across a shared fabric, which is cheaper and faster. Getting it wrong means your outbound path swells with extra hops and your bill reflects transit that peering would have removed.
What people get wrong about IXP
People conflate IXP presence with IXP peering. Being hosted in a datacenter that is an exchange member does not mean your provider actually exchanges traffic there. Check the peering registry and your traceroutes. Presence alone only means the opportunity exists; the exchange only matters when your provider actively routes traffic across it rather than paying transit for the same path.
IXP — common questions
What is the difference between an IXP and a transit provider?
An IXP is a shared physical fabric where networks interconnect directly, so traffic crosses fewer hops and avoids transit fees. Transit is a paid service that carries your traffic to any destination. At an IXP, you peer with specific networks; transit gives you a default route to the whole internet. Most providers use both.
Does being at an IXP make a VPS provider faster?
Usually, for traffic to other members of that exchange, yes, because the path is shorter. But it does not make every route faster. Peering decisions and each member's policy control what actually exchanges. Look for whether the provider's route table includes common exchange peers before assuming lower latency.
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- IP transit
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- Reverse DNS
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