Differences between POS and CPOS interfaces

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Differences between POS and CPOS interfaces:
A CPOS interface is a channelized POS interface with functions of timeslot multiplexing and demultiplexing. The CPOS interface can multiplex or demultiplex 2 Mbit/s signals from a 155M optical interface and can carry services with a minimum granularity of 2 Mbit/s. A POS interface is a service channel of a 155M optical interface with a minimum service granularity of 155 Mbit/s.

Other related questions:
Does the LTE cellular interface support PPP
The LTE cellular interface supports PPP. The following physical interfaces also support PPP: - Synchronous or asynchronous serial interface working in synchronous mode (the interface type is the serial interface) - Async interface working in protocol mode - Serial interfaces formed by CE1/PRI or CT1/PRI interfaces, which have the same logical features as synchronous serial interfaces - Serial interfaces formed by CE3 or CT3 interfaces, which have the same logical features as synchronous serial interfaces - Serial interfaces formed by E1-F or T1-F interfaces, which have the same logical features as synchronous serial interfaces - Serial interfaces formed by E1/T1 channels that are channelized from a CPOS interface, which have the same logical features as synchronous serial interfaces - Cellular interfaces - ISDN BRI interfaces - POS interfaces Note: For LTE cellular interfaces, only the E392 data cards support the link-protocol ppp command.

How to configure the CPOS interface of an AR router
You can configure the CPOS interface of an AR router as follows: # The interconnection mode of the CPOS interface must be configured when the CPOS interfaces of the local device and the peer device (which is not a Huawei product) are directly connected by optical fibers or connected through a WDM. [Huawei] controller cpos 1/0/0 [Huawei-Cpos1/0/0] multi-channel align-mode alcatel //Set the interconnection mode of the CPOS interface to Alcatel. # Different synchronous transfer modes (SDH or SONET) are used in different regions. You must configure the CPOS interface based on the synchronous transfer mode used in your region. If SDH transfer mode is used in your region, configure the CPOS interface as follows: [Huawei-Cpos1/0/0] frame-format sdh //Set the frame format of the CPOS interface to SDH. [Huawei-Cpos1/0/0] multiplex mode au-3 //Set the AUG multiplexing route of the CPOS interface to AU-3 multiplexing. [[Huawei-Cpos1/0/0] flag c2 3 //Set the overhead bytes of the CPOS interface. [Huawei-Cpos1/0/0] flag s1 14 [Huawei-Cpos1/0/0] flag j0 16byte-mode abc [Huawei-Cpos1/0/0] flag j1 16byte-mode xyz [Huawei-Cpos1/0/0] clock master //Set the clock mode of the CPOS interface to master. [Huawei-Cpos1/0/0] itf type ff //Set the characters filled between frames on the CPOS interface to 0xff. If SONET transfer mode is used in your region, configure the CPOS interface as follows: [Huawei-Cpos1/0/0] frame-format sonet //Set the frame format of the CPOS interface to SONET. [Huawei-Cpos1/0/0] flag c2 3 //Set the overhead bytes of the CPOS interface. [Huawei-Cpos1/0/0] flag s1 14 [Huawei-Cpos1/0/0] flag j0 16byte-mode abc [Huawei-Cpos1/0/0] flag j1 16byte-mode xyz [Huawei-Cpos1/0/0] clock master //Set the clock mode of the CPOS interface to master. [Huawei-Cpos1/0/0] itf type ff //Set the characters filled between frames on the CPOS interface to 0xff. Run the display controller cpos 1/0/0 command to check the physical layer configuration of the CPOS interface.

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