202 CHAPTER 12: F UNDAMENTAL CE1/PRI I NTERFACE CONFIGURATION COMMANDSDescription Use the channel-set command to bundle timeslots on the CE1/PRI interface intoa channel-set.Use the undo channel-set command to restore the default.By default, no timeslots are bundled into channel sets.A CE1/PRI interface in CE1/PRI mode is physically divided into 32 timeslotsnumbered 0 through 31.In actual applications, all the timeslots except timeslot 0 can be bundled intomultiple channel sets. For each channel set, the system automatically creates aserial interface which is logically equivalent to a synchronous serial interface.The serial interface is numbered in the form of serialinterface-number:set-number, where, interface-number is the number of theCE1/PRI interface, and set-number is the number of the channel set.Only one timeslot bundling mode can be supported on a CE1/PRI interface at atime. In other words, this command cannot be used together with the pri-setcommand.Example # Bundle timeslots 1, 2, 5, 10 through 15, and 18 on CE1/PRI interface E1 2/0 intochannel set 0. system-view[Sysname] controller e1 2/0[Sysname-E1 2/0] channel-set 0 timeslot-list 1,2,5,10-15,18# Make the same configuration on the CE1/PRI interface on the remote router. system-view[Sysname] controller e1 2/0[Sysname-E1 2/0] channel-set 0 timeslot-list 1,2,5,10-15,18clock (CE1/PRI interface view)Syntax clock { master | slave }undo clockView CE1/PRI interface viewParameter master: Adopts the internal clock as the clock source.slave: Adopts the line clock as the clock source.Description Use the clock command to configure clock source for the CE1/PRI interface.Use the undo clock command to restore the default clock source, that is, lineclock.
