Remote Lfa Frr Protection For Tdm And Atm Pseudowires; Hardware Limitations; Software Limitations - Cisco ASR 900 Series Release Notes

Chapter
Raw Socket
Raw Socket Transport is a method for transporting serial data through an IP network. Raw Socket
transports Supervisory Control and Data Acquisition (SCADA) data from Remote Terminal Units
(RTUs). This method is an alternative to the Block Serial Tunnel (BSTUN) protocol. Raw Socket
supports point-to-point and point-to-multipoint connections. For instructions on how to configure Raw
Socket, see Configuring Raw Socket Transport on the Cisco ASR 903 Router.
Raw Socket is supported on the serial interface module. For instructions on how to install the serial
interface module, see the Cisco ASR 903 Hardware Installation Guide.
For information on how to configure the serial interface module, see
on the Cisco ASR 903 Router.
We recommend the installation of the Metro IP Services and Metro Aggregation Services licenses with
Note
serial interface module. For more information about obtaining and installing licenses, see
Licensing

Hardware Limitations

Serial Interface Module Limitations—The following limitations apply to the serial interface module:
•
•

Software Limitations

Raw Socket limitations—The following software limitations apply to the serial interface module:
•
•
•
•

Remote LFA FRR Protection for TDM and ATM Pseudowires

Starting with Cisco IOS XE Release 3.10S, the Loop-Free Alternate (LFA) Fast Reroute (FRR) feature
is supported for Time-division multiplexing (TDM) pseudowires.
•
•
For more information see,
OL-26630-12
Overview.
A maximum of 2 serial interface modules are supported on the Cisco ASR 903 Router.
The serial interface module hardware supports a 230.4 Kbps traffic rate in asynchronous mode. The
actual speed is dependent on cable quality and length. The serial interface module hardware supports
an 8 Mbps traffic rate in synchronous mode. The actual speed is dependent on cable quality and
length.
Raw Socket encapsulation is supported on up to 28 serial ports.
Asynchronous EIA/TIA-232 serial traffic is supported with DB-25, DB-9, and RJ-45 connectors.
The X.21, V.35, RS-485, EIA-449, EIA-530, and IRIG-B standards are not currently supported by
software.
Synchronous traffic is not currently supported.
Circuit Emulation Service over Packet Switched Network (CESoPSN) over MPLS, and
Structure-Agnostic Time Division Multiplexing over Packet (SAToP) over MPLS networks for T1,
E1, SDH and SONET framing is supported.
Inverse Multiplexing over ATM (IMA) over MPLS; PVC and PVC sessions are supported for the
ATM (IMA).
Configuring Loop-Free Alternate Fast Reroute on the Cisco ASR 903
New Software Features in Cisco IOS XE Release 3.10S
Configuring Raw Socket Transport
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
Software
Router.
7