Chapter 2 Alarm Troubleshooting

2.7.125 LCAS-RX-FAIL

Step 1 Look for and clear any bit error rate conditions at the transmit node.

StepNote2 IfFornomoreequipmentinformationSONETaboutpathEtherneterrorscards,exist,referensureto thethatCiscothe remoteONS 15310node-CLhasandLCASCiscoenabledONS 15310on the-MA

Ethernetcircuit byCardcompletingSoftwaretheFeaturefollowingand Configurationsteps: Guide.

a.In node view, click the Circuits tab.

Clear the LCAS-CRCb.ConditionChoose the VCAT circuit and click Edit.

c.In the Edit Circuit window, click the General tab.

Step 1 Lookd. Verifyfor andthatclearthe anyModeasscolumnciatedsaysequipmentLCAS.failures, such as the EQPT alarm, on the receive node or

transmit node.

Step 3 If the column does not say LCAS, complete the “Delete a Circuit” procedure on page 2-155and recreate Step 2 itLookin LCASfor andmodclearusiangy thebit instructionserrorrate conditionsin the Ciscoat theONStransmit15310-nodeCL and. Cisco ONS 15310-MA Ethernet

Card Software Feature and Configuration Guide.

Step 3 If no equipment or SONET path errors exist, ensure that the remote node has LCAS enabled on the Step 4 Ifcircuitthe conditionby completingdoes nottheclear,followinglog insteps:othe Technical Support Website at

http://www.cisco.com/techsupport for more information or call Cisco TAC (1-800-553-2447). a. In node view, click the Circuits tab.

b. Choose the VCAT circuit and click Edit.

c. In the Edit Circuit window, click the General tab.

0.0.1 LCAS-RXd-.FAILVerify that the Mode column says LCAS.

Step 4 If the column does not say LCAS, complete the “Delete a Circuit” procedure on page 2-155and recreate

Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)

it in LCAS mode using the instructions in the Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet

Card Software Feature and Configuration Guide.

SONET Logical Objects: STSTRM, VT-TERM

Step 5 If the condition does not clear, log into the Technical Support Website at

The LCAS VCG Member Receive-Side-In Fail condition is raised against ML-100T-8 Ethernet cards

http://www.cisco.com/techsupport for more information or call Cisco TAC (1-800-553-2447). with LCAS-enabled VCG or software-enabled LCAS (SW-LCAS) VCG.

LCAS VCGs treat failures unidirectionally, meaning that failures of the transmit or receive points occur independently of each other. The LCAS-RX-FAIL condition can occur on the receive side of an LCAS VCG member for the following reasons:

2.7.125 LCAS-RX-FAIL

• SONET path failure (a unidirectional failure as seen by the receive side).

• VCAT member is set out of group at the transmit side, but is set in group at the receive side. Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)

• VCAT member does not exist at the transmit side but does exist and is in group at the receive side. SONET Logical Objects: STSTRM, VT-TERM

The condition can be raised during provisioning operations on LCAS VCGs but should clear when the The LCAS VCG Member Receive-Side-In Fail condition is raised against ML-100T-8 Ethernet cards provisioning is completed.

with LCAS-enabled VCG or software-enabled LCAS (SW-LCAS) VCG.

Software-enabled LCAS VCGs treat failure bidirectionally, meaning that both directions of a VCG LCAS VCGs treat failures unidirectionally, meaning that failures of the transmit or receive points occur member are considered failed if either transmit or receive fails. The LCAS-RX-FAIL condition is raised independently of each other. The LCAS-RX-FAIL condition can occur on the receive side of an LCAS on these VCG members when a member receive side fails due to a SONET path failure.

VCG member for the following reasons:

• SONET path failure (a unidirectional failure as seen by the receive side).

Note For more information about Ethernet cards, refer to the Cisco ONS 15310-CL and Cisco ONS 15310-MA

• VCAT member is set out of group at the transmit side, but is set in group at the receive side. Ethernet Card Software Feature and Configuration Guide.

The condition can be raised during provisioning operations on LCAS VCGs but should clear when the

provisioning is completed.

Note ONS 15310-CL ML-100T-8-Series cards are LCAS-enabled.

Software-enabled LCAS VCGs treat failure bidirectionally, meaning that both directions of a VCG

member are considered failed if either transmit or receive fails. The LCAS-RX-FAIL condition is raised Clear the LCAS-RXon-FAILthese ConditionVCG members when a member receive side fails due to a SONET path failure.

Step 1 Check for and clear any line or path alarms using the procedures in this chapter.

Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0

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Cisco Systems ONS 15310-CL, ONS 15310-MA manual Lcas-Rx-Fail, Transmit node
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ONS 15310-CL, ONS 15310-MA specifications

Cisco Systems has long been a leader in networking and telecommunications technology, and among its impressive lineup of products, the Cisco ONS 15310 series stands out as an essential solution for optical networking. This series includes models such as the ONS 15310-MA, ONS 15310-CL, and ONS 15310-CA, each designed to meet the diverse needs of service providers and enterprises seeking to enhance their optical transport networks.

The Cisco ONS 15310-MA is an advanced multi-service platform designed for metropolitan area networks. It facilitates the seamless transport of data, voice, and video over optical networks. One of its main features is its ability to support a variety of interfaces, including Ethernet, SONET/SDH, and Wavelength Division Multiplexing (WDM), allowing users to integrate multiple services into a single platform. Additionally, the ONS 15310-MA supports advanced traffic management and Quality of Service (QoS) features to prioritize critical applications and ensure consistent performance.

The ONS 15310-CL variant is tailored for more specific applications, providing enhanced capabilities aimed at delivering carrier-grade services. It features a robust architecture that accommodates high-capacity traffic without compromising reliability. This model emphasizes low power consumption and a compact design, making it suitable for deployment in space-constrained environments. The ONS 15310-CL also supports a wide range of optical interfaces, making it highly flexible for various network configurations.

In terms of technologies, the Cisco ONS 15310 series leverages Optical Transport Network (OTN) capabilities, providing high efficiency and greater bandwidth utilization. OTN technology enables efficient error correction and adds resilience to the network through its built-in protection mechanisms. Furthermore, the series supports seamless integration with existing IP/MPLS networks, creating a cohesive infrastructure as organizations evolve their networking requirements.

One of the defining characteristics of the ONS 15310 series is its focus on scalability. Network operators can start with a modest deployment and gradually expand capacity as demand grows. This adaptability is complemented by Cisco's comprehensive management and monitoring tools, providing operators with real-time insights into network performance and facilitating proactive management.

In conclusion, the Cisco ONS 15310-MA and ONS 15310-CL models represent sophisticated solutions for modern optical networks. With their versatile features, advanced technologies, and robust design, they empower service providers and enterprises to build resilient, high-capacity networks that meet the demands of today’s data-driven world.
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