Cisco Systems PA-POS-2OC3, PA-POS-1OC3 manual Push Mode Description

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Chapter 4 Configuring the PA-POS-1OC3

Push Mode Description

Step 1 To configure an interface for line loopback, enter the loop line command:

Router(config)# interface pos 3/0

Router(config-if)# loop line

Step 2 To disable line loopback, enter the no loop line command.

Router(config)# interface pos 3/0

Router(config-if)# no loop line

For more information about interface subcommands and the configuration options available for the supported routers, refer to the publications listed in the “Related Documentation” section on page viii.

Push Mode Description

If you have not been advised by Cisco to use the information in this section, do not do so.

The PA-POS-1OC3 and PA-POS-2OC3 port adapters support a different algorithm (from that of most port adapters) for handling data. On the transmit side, it can either pull packets from the CPU (Pull mode) or push packets from the CPU to the port adapter (Push mode). The PA-POS-1OC3 and PA-POS-2OC3 port adapters were developed with a software architecture that deviates from the design of previously developed port adapters. A majority of the port adapters allow data to be pulled from the CPU to their interfaces. Because a few corner-case conditions exist, you may require the ability to configure the PA-POS-1OC3 and PA-POS-2OC3 port adapters to behave the same as the rest of the port adapter product family. The new CLI described in this section allows the customer to change the PA-POS-1OC3 and PA-POS-2OC3 port adapters Push mode behavior to the standard Pull mode.

Caution Only customers who have been advised by Cisco to use this CLI should do so. If you have not been advised by Cisco to use the dma model pull enable command, do not do so.

Note Changing from Push mode to Pull mode is applicable only on a Cisco 7200 VXR router with an NPE-G1 and PA-POS-1OC3 or PA-POS-2OC3 installed.

Note We recommend changing the mode during a standard maintenance window.

The Pull Mode is supported on Cisco IOS Release 12.4(15)T1.

To change the TX DMA mode from the default Push mode to Pull mode, follow these steps:

•Enter the dma model pull enable command to change the Push mode to Pull mode. When the dma model pull enable command is executed, all the PA-POS-1OC3 and PA-POS-2OC3 port adapters installed are soft OIRed to reinitialize them to Pull mode.

•To change the Pull mode to Push mode, enter the no dma model pull enable command. When the no dma model pull enable command is executed, all the PA-POS port adapters are soft OIRed to reinitialize them to Push mode.

PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide

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Contents Americas Headquarters Text Part Number OL-6514-04Copyright 2007 Cisco Systems, Inc. All rights reserved N T E N T S Cisco 7401ASR Router Cisco 7401ASR Router-Removing and Installing a Port Adapter OL-6514-03 Objectives Document Version HistoryVersion Date Related Documentation OrganizationSection Title Description Preface Related Documentation OL-6514-04 PA-POS-1OC3 Overview PA-POS-1OC3 OverviewSONET/SDH Overview SDH EquivalentFeatures Interface Specifications OC-3 Optical Fiber SpecificationsNetwork Management Support Using Statistics to Estimate Link Loss and Power Budget LEDsEncapsulation Method Support LED Label Color State FunctionCables and Connectors RCVPort Adapter Slot Locations on the Supported Platforms Cisco 7200 VXR Routers Slot NumberingCisco 7201 Router Slot Numbering Cisco 7200 Series VXRCisco 7301 Router Slot Numbering Cisco 7304 PCI Port Adapter Carrier Card Slot NumberingCisco 7401ASR Router Slot Numbering Module Slots on the Cisco 7304 RouterCisco 7500 Series Routers with VIP Slot Numbering 10 VIP Slot LocationsCisco 7505 Router Slot Numbering RSPCisco 7507 Router Slot Numbering VIP interface-slot RSP-slotCisco 7513 Router Slot Numbering 6 8 10Cisco 7603 Router Slot Numbering SUPERVISOR2Cisco 7606 Router Slot Numbering Cisco 7609 Router Slot Numbering FAN StatusCisco 7613 Router Slot Numbering Identifying Interface Addresses Platform Interface Address Format Numbers SyntaxCisco 7201 Router Interface Addresses Cisco 7200 VXR Routers Interface AddressesCisco 7301 Router Interface Addresses Cisco 7401ASR Router Interface Addresses Cisco 7500 Series Routers VIP Interface AddressesCisco 7600 Series Routers FlexWAN Module Interface Addresses OL-6514-04 Preparing for Installation Required Tools and EquipmentCisco 7200 VXR Routers Software and Hardware RequirementsPlatform Recommended Minimum Cisco IOS Release Checking Hardware and Software Compatibility Safety Guidelines Safety WarningsAvvertenza Importanti Istruzioni Sulla Sicurezza Warnung Wichtige SicherheitshinweiseAviso Instruções Importantes DE Segurança Guarde Estas Instrucciones GEM Disse Anvisninger OL-6514-04 Electrical Equipment Guidelines Telephone Wiring Guidelines Preventing Electrostatic Discharge DamageLaser Safety FCC Class a ComplianceOL-6514-04 Removing and Installing the PA-POS-1OC3 Handling Port AdaptersOnline Insertion and Removal Handling a Port AdapterOIR Functional Description Port Adapter Removal and Installation Step Cisco 7201 Router-Removing and Installing a Port Adapter CiscoCisco 7301 Router-Removing and Installing a Port Adapter OL-6514-04 CC-PA Cisco 7401ASR Router-Removing and Installing a Port Adapter With the screw removed, grasp Screw Connecting PA-POS-1OC3 Interface Cables TX RXHandling the SFP Optics Module Replacing the SFP Optics ModuleRemoving the SFP Optics Module Installing the SFP Optics Module Verifying the SFP Optics Module Installation Inserting an SFP Optics ModulePage OL-6514-04 Configuring the PA-POS-1OC3 Using the Exec Command InterpreterConfiguring the Interfaces Parameter Configuration Commands Default ValuePlatform Command Example Shutting Down an InterfaceSlot/port-adapter/port Show interfaces pos, followed by Performing a Basic Configuration Show interfaces pos followed byInterface pos, followed by Customizing the Configuration Configuring Framing Setting the MTU SizeSetting the Source of the Transmit Clock Configuring Cyclic Redundancy Checks Configuring Sonet Payload ScramblingConfiguring APS Basic APS ConfigurationUsing show Commands to Verify the New Interface Status Checking the ConfigurationCommand Function Example Show controllers Using the show version or show hardware Commands Cisco 7201 Router-Example Output of the show version Command Router#show version Using the show diag Command Port adapter is analyzedCisco 7201 Router-Example Output of the show diag Command Router#show diag Using the show interfaces Command Router# show interfaces pos 4/0 PE3#sh int pos4/1Router# show interfaces Using the ping Command to Verify Network Connectivity Router# ping 10.0.0.10 ReturnConfiguring an Interface for Internal Loopback Using loopback CommandsConfiguring an Interface for Line Loopback Push Mode Description PA-POS-1OC3 Error Messages PA-POS-1OC3 Statistics CountersMaking a Back-to-Back Connection First routerConfiguring the PA-POS-1OC3 Making a Back-to-Back Connection

PA-POS-1OC3, PA-POS-2OC3 specifications

Cisco Systems has long been at the forefront of networking technology, providing solutions that empower organizations to enhance their connectivity and communication capabilities. Among its impressive lineup, the PA-POS-2OC3 and PA-POS-1OC3 modules stand out as significant components designed to optimize performance in service provider and enterprise environments.

The PA-POS-2OC3 and PA-POS-1OC3 modules are designed for use with the Cisco 7600 Series routers and are tailored for Packet Over SONET (POS) transport. Supporting the OC-3 speed of 155.52 Mbps, these modules provide reliable high-speed connectivity, enabling organizations to efficiently manage data traffic and ensure rapid data transfer across their networks. The PA-POS-2OC3 offers dual OC-3 capabilities, allowing for higher aggregate bandwidth and redundancy options, making it common in demanding network environments.

One of the main features of the PA-POS-2OC3 and PA-POS-1OC3 is their enhanced support for advanced networking protocols, including MPLS (Multiprotocol Label Switching). MPLS facilitates efficient data routing and improves bandwidth utilization by enabling multiple types of traffic to be consolidated over a single network. This is crucial for organizations looking to deploy services like VoIP, video conferencing, and other bandwidth-intensive applications.

The modules also offer robust error correction and monitoring capabilities, which are essential for maintaining service quality in mission-critical applications. Administrators can monitor performance and diagnose issues in real-time, enabling swift responses to potential concerns that could disrupt service.

Moreover, the PA-POS-2OC3 and PA-POS-1OC3 are designed with features that support enterprise-grade security and scalability. This is particularly beneficial for organizations expecting growth or requiring enhanced protection for sensitive data as it traverses the network.

In summary, Cisco's PA-POS-2OC3 and PA-POS-1OC3 modules represent essential building blocks for high-speed networking solutions. Their support for OC-3 connectivity, advanced routing protocols, and robust monitoring capabilities make them ideal for both service providers and enterprises. Through increased scalability, improved bandwidth management, and enhanced security, these modules allow organizations to adapt to the ever-evolving landscape of data communications effectively. With Cisco at the helm, businesses can trust in a networking solution that not only meets current demands but is also primed for future growth.
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