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openbsd下的trunk模式和配置.

2009-05-13 03:44:06来源：未知阅读 ()

openbsd支持trunk的三种模式： roundrobin (the de-fault), failover, none.

trunk的配置可以参考 man trunk.
喜欢它的文档.有必要养成看文档的习惯, 即使是E文.
我的设备有4块网卡 fxp0,fxp1,fxp2,fxp3
前两块做adsl负载均衡,那么后两块网卡做 failover.
有条件试试, 脚本要小改一下.本质问题就是pf是否支持trunk网口 ^_^

#man trunk
TRUNK(4)                OpenBSD Programmer's Manual                TRUNK(4)
NAME
   trunk - link aggregation and link failover interface
SYNOPSIS
   pseudo-device trunk [count]
DESCRIPTION
   The trunk interface allows aggregation of multiple network interfaces as
   one virtual trunk interface.
   A trunk interface can be created using the ifconfig trunkN create com-
   mand.  It can use different link aggregation protocols specified using
   the trunkproto proto option.  Child interfaces can be added using the
   trunkport child-iface option and removed using the -trunkport child-iface
   option.
   The driver currently supports the trunk protocols roundrobin (the de-
   fault), failover, and none.  The roundrobin protocol distributes outgoing
   traffic using a round-robin scheduler through all active ports; the
   failover protocol sends outgoing traffic only through the master or the
   next active port.  Both protocols receive traffic from all attached
   ports.  The interface link state is used to validate if the port is ac-
   tive or not.  The none protocol is intended to do nothing: it disables
   any traffic without disabling the trunk interface itself.
   The configuration can be done at runtime or by setting up a
   hostname.if(5) configuration file for netstart(8).
EXAMPLES
   Create a simple round robin trunk with two bge(4) Gigabit Ethernet inter-
   faces:
         # ifconfig bge0 up
         # ifconfig bge1 up
         # ifconfig trunk0 trunkport bge0 trunkport bge1 \

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