IEEE 802.1Q/802.1ag

Ethernet OAM Software - IEEE 802.1Q/802.1ag

NComm’s 802.1Q/802.1ag software provides a complete source code solution for those developers needing to incorporate standard compliant IEEE 802.1Q/802.1ag software capabilities into their products. The 802.1Q/802.1ag source code is delivered in ANSI C.  Operation under the Linux operating system as well as other operating systems is provided. The 802.1Q/802.1ag software has been fully qualified in conformance testing, and NComm will assist in any additional conformance issues that might come up during full product homologation testing.

The architecture of the Ethernet OA&M software module is shown below.  The module will implement the Ethernet OA&M requirements of IEEE 802.1Q/802.1ag while allow your application to integrate the feature in to your system.

 

802.1ag_software

 

IEEE 802.1Q/802.1ag Maintenance Domains

The Ethernet OA&M module comes with a full API that allows the application layer to administer the Ethernet OA&M features while the 802.1Q/802.1ag module will perform packet handling.  The module can be configured to operate on a bridge or for station operation as needed.

This 802.1Q/802.1ag source code package fully covers IEEE 802.1Q/802.1ag as follows:

Connectivity Fault Management (CFM)

Standard: IEEE 802.1Q/802.1ag

Bridge mode and station mode supported

Stacked VLANs supported (More than one VLAN tag on packets)

Continuity Check Messages (CCM)

Generates CCM messages.

3.3ms (and slower) message rates supported

Automatically generates CCM messages without application intervention

Processes receives CCM messages.

Automatically detects:

    Loss of Continuity

    Unexpected MEP

    Cross Connect error

    Remote Defect indications

    Unexpected MD/MA level

    Incorrect CCM interval

Loopback Messages (LBM/LBR)

Upon request of the application, the LBM message will be generated.

Automatically responds to LBM messages from external entities.

Automatically detects:

    LBRs received in order

    LBRs received out of order

    LBRs missing

    Measures delay 

Link Trace Messages (LTM/LTR)

Upon request of the application, the LTM message will be generated.

Automatically responds to LTM messages from external entities.

Automatically detects:

    LTRs received

    Unexpected LBRs received 

    Detects intermediate end points

Download the Ethernet OAM TMS 802.1Q/802.1ag datasheet