通信渠道备份：何时需要

blog.channelBackup.whatIs.title

blog.channelBackup.whatIs.p1

blog.channelBackup.whatIs.p2

blog.channelBackup.schemes.title

blog.channelBackup.schemes.activePassive.title

blog.channelBackup.schemes.activePassive.desc

blog.channelBackup.schemes.activePassive.pros

• blog.channelBackup.schemes.activePassive.pro1
• blog.channelBackup.schemes.activePassive.pro2

blog.channelBackup.schemes.activePassive.cons

• blog.channelBackup.schemes.activePassive.con1

blog.channelBackup.schemes.activeActive.title

blog.channelBackup.schemes.activeActive.desc

blog.channelBackup.schemes.activeActive.pros

• blog.channelBackup.schemes.activeActive.pro1
• blog.channelBackup.schemes.activeActive.pro2

blog.channelBackup.schemes.activeActive.cons

• blog.channelBackup.schemes.activeActive.con1
• blog.channelBackup.schemes.activeActive.con2

blog.channelBackup.schemes.bgpMultihoming.title

blog.channelBackup.schemes.bgpMultihoming.desc

blog.channelBackup.schemes.bgpMultihoming.pros

• blog.channelBackup.schemes.bgpMultihoming.pro1
• blog.channelBackup.schemes.bgpMultihoming.pro2

blog.channelBackup.schemes.bgpMultihoming.cons

• blog.channelBackup.schemes.bgpMultihoming.con1

blog.channelBackup.cost.title

blog.channelBackup.cost.p1

• blog.channelBackup.cost.activePassive — blog.channelBackup.cost.activePassiveCost
• blog.channelBackup.cost.activeActive — blog.channelBackup.cost.activeActiveCost
• BGP multihoming — blog.channelBackup.cost.bgpCost

blog.channelBackup.whenNeeded.title

blog.channelBackup.whenNeeded.critical.title

blog.channelBackup.whenNeeded.critical.desc

blog.channelBackup.whenNeeded.notNeeded.title

blog.channelBackup.whenNeeded.notNeeded.desc

blog.channelBackup.realCase.title

blog.channelBackup.realCase.p1

blog.channelBackup.realCase.p2

blog.channelBackup.realCase.result