Chapter 4 Configuring the PA-POS-1OC3

PA-POS-1OC3 Statistics Counters

Caution On the execution of either command, all thePA-POS-1OC3 and PA-POS-2OC3 port adapters installed in the router will be soft OIRed.

PA-POS-1OC3 Statistics Counters

The PA-POS-1OC3 maintains counts of certain errors. Each error counter is 16 bits long. Errors include the following:

CRC errors—Packet corrupted in reception

Giants received—Packet length too large (greater than 16 KB)

Runts—Packet length too small (less than or equal to 4 bytes)

Ignores—No receive buffers available; receive buffers full

PA-POS-1OC3 Error Messages

The only error message you should see is of the following type and format:

%POS-0-MSG:%DEBUGGER-0-STACK_DATA8: 00E0 FFFFFFFF 80057F50 00000000 00000000 FFFFFFFF 80032CD4 00000000 00000000

Contact the Cisco Technical Assistance Center (TAC) for assistance with this error message. To contact the Cisco TAC, see the “Obtaining Documentation, Obtaining Support, and Security Guidelines” section on page x.

Making a Back-to-Back Connection

This section provides an example of two sample configuration files from a Cisco 7200 VXR router and a Cisco 7301 router connected back-to-back through their OC-3 interfaces.

First router

interface POS 3/0 <to select port 0 of PA-POS-1OC3 in a Cisco 7200 / Cisco 7301 series router>

interface POS 3/1 <to select port 1 of PA-POS-1OC3 in a Cisco 7200 / Cisco 7301 series router>

ip address 10.0.0.10 255.255.255.0 no keepalive

clock source internal

Second router

interface POS 3/0 <to select port 0 of PA-POS-1OC3 in a Cisco 7200 / Cisco 7301 series router>

interface POS 3/1 <to select port 1 of PA-POS-1OC3 in a Cisco 7200 / Cisco 7301 series router>

ip address 10.0.0.20 255.255.255.0 no keepalive

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Cisco Systems manual PA-POS-1OC3 Statistics Counters, PA-POS-1OC3 Error Messages, 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.