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documentation:setup_and_user_guide:link_aggregation_and_failover

Link Aggregation and Failover

NAS4Free supports diffrent Link Aggregation and Failover settings.

This is a Topic for Advanced user. Here we refer to lagg manpage of the FreeBSD project.
Also see:
Link aggregation on Wikipedia.org

[…]extract

   failover	  Sends and receives traffic only through the master port.  If
	  the master port becomes unavailable, the next active port is
	  used.  The first interface added is the master port; any
	  interfaces added after that are used as failover devices.
   fec	  Supports Cisco EtherChannel.	This is a static setup and
	  does not negotiate aggregation with the peer or exchange
	  frames to monitor the link.
   lacp	  Supports the IEEE 802.3ad Link Aggregation Control Protocol
	  (LACP) and the Marker Protocol.  LACP will negotiate a set
	  of aggregable links with the peer in to one or more Link
	  Aggregated Groups.  Each LAG is composed of ports of the
	  same speed, set to full-duplex operation.  The traffic will
	  be balanced across the ports in the LAG with the greatest
	  total speed, in most cases there will only be one LAG which
	  contains all ports.  In the event of changes in physical
	  connectivity, Link Aggregation will quickly converge to a
	  new configuration.
   loadbalance  Balances outgoing traffic across the active ports based on
	  hashed protocol header information and accepts incoming
	  traffic from any active port.  This is a static setup and
	  does not negotiate aggregation with the peer or exchange
	  frames to monitor the link.  The hash includes the Ethernet
	  source and destination address, and, if available, the VLAN
	  tag, and the IP source and destination address.
   roundrobin   Distributes outgoing traffic using a round-robin scheduler
	  through all active ports and accepts incoming traffic from
	  any active port.
   none	  This protocol is intended to do nothing: it disables any
	  traffic without disabling the lagg interface itself.
documentation/setup_and_user_guide/link_aggregation_and_failover.txt · Last modified: 2014/02/19 14:29 (external edit)