108 CHAPTER 4: WAN INTERFACE CONFIGURATIONA CE1/PRI interface in CE1/PRI mode can be used as a CE1 interface where a serialinterface is created upon creation of a channel set. You may bundle timeslots on aCE1/PRI interface into up to 31 channel sets.For each channel set, the system automatically creates a serial interface numberedserial interface-number:set-number. This interface is logically equivalent to asynchronous serial interface where you can make other configurations about:■ Data link protocol such as “PPP and MP Configuration” on page 363, “VoFRConfiguration” on page 2385, “X.25 and LAPB Configuration” on page 283■ “IP Addressing Configuration” on page 623■ “Backup Center Configuration” on page 1961 if the interface is used as aprimary or secondary interface for backup■ “NAT-PT Configuration” on page 679 and “Configuring a Packet Filter Firewall”on page 1794 if a firewall is to be set upn The timeslots on a CE1/PRI interface can be bundled into either channel sets or aPRI set, but not the both, at a time.Configuring CE1/PRIInterface (in PRI Mode)Follow these steps to configure a CE1/PRI interface in PRI mode:A CE1/PRI interface in CE1/PRI mode can be used as a PRI interface where only onePRI set can be created.For the PRI set, the system automatically creates a serial interface numbered serialinterface-numbe:15. This interface is logically equivalent to an ISDN PRI interfacewhere you can make other configurations about:Set the interface to operate inCE1/PRI modeusing ce1 OptionalThe default operating mode isCE1/PRI mode.Bundle timeslots on theinterface into channel setschannel-set set-numbertimeslot-list listRequiredSet other interface parameters See “WAN InterfaceConfiguration” on page 99.OptionalTo do... Use the command... RemarksTo do... Use the command... RemarksEnter system view system-view --Enter CE1/PRI interface view controller e1 number RequiredSet the interface to operate inCE1/PRI modeusing ce1 OptionalThe default operating mode isCE1/PRI mode.Bundle timeslots on theinterface into a PRI setpri-set [ timeslot-list list ] RequiredIf no timeslot range isspecified, all timeslots excepttimeslot 0 form a 30B + DISDN PRI interface.Set other interface parameters See “WAN InterfaceConfiguration” on page 99.Optional
