Enterasys Networks X-PeditionTM manual Overview of Dial on Demand/Bandwidth on Demand

Overview of Dial on Demand/Bandwidth on Demand

XSR(config-if<D2>)#encapsulation ppp

XSR(config-if<D2>)#dialer pool 5

XSR(config-if<D2>)#no shutdown

Configure backup serial port for dial purposes to belong to dial pool 5:

XSR(config)#interface serial 1/0

XSR(config-if<S1/0>)#dialer pool-member 5

XSR(config-if<S1/0>)#no shutdown

Configure primary serial port to use dialer 1 as its backup interface:

XSR(config)#interface serial 1/1

XSR(config-if<S1/1>)#backup interface dialer1

XSR(config-if<S1/1>)#backup delay 110

XSR(config-if<S1/1>)#no shutdown

Configure primary serial port to use dialer 2 as its backup interface:

XSR(config)#interface serial 1/2

XSR(config-if<S1/2>)#backup interface dialer2

XSR(config-if<S1/2>)#backup delay 1 10

XSR(config-if<S1/2>)#no shutdown

Overview of Dial on Demand/Bandwidth on Demand

The XSR’s Dial on Demand/Bandwidth on Demand applications provide high-speed, available- when-needed dial services over point-to-point or multipoint PPP ISDN connections. Different network topologies can be configured for different applications - mainly under Dialer Interface configuration mode - including the following:

•Dial on Demand

–PPP Point to Multipoint

–PPP Multi to Multipoint

–MLPPP Point to Multipoint

–MLPPP Multi to Multipoint

–Incoming Call Mapping

•Switched PPP Multilink

–Bandwidth on Demand

•Backup

–Backup using ISDN

–Backup with MLPPP

The caveats below apply to the XSR’s support of switched multilink connections:

•They use the dialer, they are set up in Dialer interface mode and must include an ISDN interface or associated modem.

•Configuring switched connections on a Serial line is unnecessary, the process is performed automatically.

•Leased-line connections are supported and must be configured in Multilink interface mode.

•Support on FastEthernet/GigabitEthernet ports is not available.

XSR User’s Guide 10-17