这几天上了鸟文网站，发现老外善用"loadbalance"解決WAN上卫星电视升级解密器数码反制一卡一卡的问题!!

看來国內的卫星电视升级解密器，要大升级了

双DNS+双卡 load balance+双网load balance +高速双CPU伺服器+VLAN---------可能成为未來主流

# LOADBALANCE : <device1> <device2> .. <devicen> { <exceptsid1>, <exceptsid2> .. , <exceptsidn> }
#
# multiple loadbalance groups can be configured, by adding multiple lines
. W" _7 {: W# R% Q0 E3 _! d3 L" u# warning: restart is required, when loadbalance group config changes
#
#example 1: load balance requests for three identical cards
#
# LOADBALANCE : /dev/ttyS0 /dev/ttyS1 /dev/ttyS2
#
#example 2: load balance requests for two almost identical cards, sid 0df3 and 0de1 are only available
#on one of the cards, so requests for these sids shouldn`t be loadbalanced
#
# LOADBALANCE : /dev/ttyS5 /dev/ttyS6 { 0df3,0de1 }