Avaya Configuring Dial Services Manual do Utilizador descarregar pdf (Página 139)

100

101

Dial-on-Demand Implementation Notes

117353-B Rev. 00

6-5

Balancing Traffic between a Primary Circuit and a Hot Standby Circuit

Once a hot standby circuit is active, the routing protocol activates and finds an

alternative route to the destination. When the primary circuit recovers and resumes

data transmission, the routing protocol deactivates. This is referred to as a failback

to the primary circuit.

You can control the failback to the primary circuit manually or automatically. One

advantage of controlling failback is that you can delay the return of traffic to the

primary circuit. This lets the primary circuit stabilize before it resumes

transmission of critical data.

The following configuration choices enable you to manage traffic between the

primary circuit and the hot standby circuit:

• RIP or OSPF precedence and cost parameters

The router sends traffic across the circuit with the better cost route. If the

better route is the hot standby circuit, traffic continues across this circuit even

if the primary circuit recovers. Conversely, traffic will resume across the

primary circuit if that is the better route. See Configuring IP Services for

information about RIP and OSPF.

• Standby Failback Mode parameter

This parameter specifies the method that the router uses to deactivate the

standby circuit and return to the primary circuit. Using this parameter, you can

control the failback to the primary circuit automatically or manually.

• Failback Time parameter

This parameter specifies the delay before returning to the recovered primary

circuit. The routing-level configuration takes precedence over the value of this

parameter. If the primary circuit has a better cost route, traffic returns to the

primary circuit, regardless of the delay specified by this parameter. If the hot

standby circuit has a better cost route, the router uses this circuit until the

failback timer expires.

1 2 ... 134 135 136 137 138 139 140 141 142 143 144 ... 481 482

Comentários a estes Manuais

Sem comentários

Avaya Configuring Dial Services Manual do Utilizador Página 139

Comentários a estes Manuais

Manuais e produtos relacionados com Software Avaya Configuring Dial Services