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Network limits per dedicated server port

When ordering a dedicated server, limits are automatically applied on network equipment. These limits apply to both private ports and internet ports. For servers with MC-LAG, limits apply to the entire aggregated interface (bond).

MAC address quantity limits

By default, every dedicated server is assigned a limit of 25 MAC addresses per switch port.

If the MAC address limit on the server is exceeded, partial loss of connectivity between this server and the internet or other machines in the private network may occur.

Upon your request in a ticket, this limit can be increased to 100 MAC addresses.

A limit above 100 MAC addresses can be set if technically feasible; to clarify, submit a ticket.

Broadcast traffic limits

For a dedicated server, there are limits on broadcast traffic (broadcast, unknown-unicast, and multicast) of 10 MB/sec per port for each individual traffic type.

All traffic exceeding the specified limit is discarded by the network equipment.

The limit is most often exceeded in the following cases:

  • if network exchange between machines involves a large volume of multicast traffic. In particular, network protocols such as OSPF, RIPv2, VRRP, and clustering solutions like Corosync often use multicast;
  • if traffic between servers is strictly one-way. In this case, network equipment may classify the traffic as unknown-unicast.