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Configuring CE1 Channels Down to DS Interfaces
You can configure a DS interface on a channelized E1 interface (CE1) and then apply CESoPSN encapsulation for the pseudowire to function. An NxDS0 interface can be configured from a channelized CE1 interface, where N represents the time slots on the CE1 interface. The value of N is 1 through 31 when a DS0 interface is configured from a CE1 interface.
To configure CE1 channels down to a DS interface, include the partition statement at the [edit interfaces ce1-fpc/pic/port] hierarchy level, as shown in the following example:
After you partition the DS interface, configure the CESoPSN options on it. See Setting the CESoPSN Options.
To configure CE1 channels down to a DS interface:
- Create the CE1 interface.[edit interfaces]user@host# edit interfaces ce1-fpc/pic/port
For example:
[edit interfaces]user@host# edit interface ce1-0/0/1 - Configure the partition, the time slot, and the interface
type.[edit interfaces ce1-fpc/pic/port]user@host# set partition partition-number timeslots timeslots interface-type ds;
For example:
[edit interfaces ce1-0/0/1]user@host# set partition 1 timeslots 1-4 interface-type ds;
Note: You can assign multiple time slots on a CE1 interface; in the configuration, separate the time slots by comma without spaces. For example:
[edit interfaces ce1-0/0/1]user@host# set partition 1 timeslots 1-4,9,22–31 interface-type ds; - Configure the CESoPSN encapsulation for the DS interface.[edit interfaces ds-fpc/pic/port:partition]user@host# set encapsulation encapsulation-type
For example:
[edit interfaces ds-0/0/1:1]user@host# set encapsulation cesopsn - Configure the logical interface for the DS interface.[edit interfaces ds-fpc/pic/port:partition]user@host# set unit logical-unit-number;
For example:
[edit interfaces ds-0/0/1:1]user@host# set unit 0
When you are finished configuring CE1 channels down to a DS interface, enter the commit command from configuration mode.
From configuration mode, confirm your configuration by entering the show command. For example:
