Manual:Fast Path

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Revision as of 15:58, 10 October 2012 by Marisb (talk | contribs) (Summary)
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Applies to RouterOS: v6.0rc2 +

Summary

Fast path is RouterOS new feature which allows to forward packets without additional processing in the Linux kernel. It improves forwarding speeds significantly.

For fast path to work, interface support and specific configuration conditions are required.

List of RouterBoards with FastPath support

RouterBoard Interfaces
RB3xx series ether1,2
RB6xx series ether1,2
RB7xx series all ethernets
RB8xx series ether1,2
RB9xx series all ethernets
RB1000 all ethernets
RB1100 series ether1-10,11
RB2011 series all ethernets and sfp
CCR series routers all ethernets and sfps

FastPath Handlers

Currently RouterOS has following fast path handlers:

  • ipv4
  • traffic generator
  • mpls
  • bridge
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Note: Packet will be forwarded in fast path only if source and destination interfaces support fast path. See the list of supported interfaces.



IPv4 handler

IPv4 fast path is automatically used if following conditions are met:

/ip firewall connection tracking set enabled parameter has new auto value Which means that connection tracking is disabled by default until firewall rules are added.


Traffic Generator handler

Traffic Generator fast path is automatically used for interfaces that support this feature.


MPLS handler

MPLS fast path is automatically used for interfaces that support this feature.


Bridge handler

Bridge fast path is automatically used if following conditions are met:


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