请问大神softlayer 毒妇 1000m中的几个选项有什么差别

小九

下面是订购那里复制来的，小白不懂，这里好多个1000m，选择困难············。
1 Gbps Public & Private Network Uplinks
$20.00
$0.00
1 Gbps Redundant Public & Private Network Uplinks
$40.00
$0.00
1 Gbps Public & Private Network Uplinks (Unbonded)
$20.00
$0.00
1 Gbps Dual Public & Private Network Uplinks (Unbonded)
$20.00
$0.00