Chapter 15 Configuring Resilient Packet Ring on the ML-Series Card

Configuring RPR

 

Command

Purpose

Step 4

 

 

Router(config-if)# carrier-delay msec

(Optional) Sets the carrier delay time. The default setting

 

milliseconds

is 200 msec, which is optimum for SONET protected

 

 

circuits.

 

 

Note The default unit of time for setting the carrier

 

 

delay is seconds. The msec command resets the

 

 

time unit to milliseconds.

Step 5

 

 

Router(config-if)# pos trigger defect

(Optional) Configures a trigger to bring down the POS

 

ber_sd-b3

interface when the SONET bit error rate exceeds the

 

 

threshold set for the signal degrade alarm. Bringing the

 

 

POS interface down initiates the RPR wrap.

 

 

This command is recommended for all RPR POS

 

 

interfaces, since excessive SONET bit errors can cause

 

 

packet loss on RPR traffic.

 

 

Note This command should not be used when a Cisco

 

 

ONS 15310 is part of the ring. It may cause

 

 

inconsistent RPR wrapping.

Step 6

 

 

Router(config-if)# no shutdown

Enables the POS port.

Step 7

 

 

Router(config-if)# interface pos 1

Enters the interface configuration mode to configure the

 

 

second POS interface that you want to assign to the SPR.

Step 8

 

 

Router(config-if)# encapsulation lex

Sets POS interface encapsulation as LEX (default). RPR

 

 

on the ML-Series card requires LEX encapsulation.

Step 9

 

 

Router(config-if)# spr-intf-id

Assigns the POS interface to the SPR interface. The

 

shared-packet-ring-number

shared packet ring number must be 1 (the same shared

 

 

packet ring number that you assigned in Step 3), which is

 

 

the only shared packet ring number that you can assign

 

 

to the SPR interface.

Step 10

 

 

Router(config-if)# carrier-delay msec

(Optional) Sets the carrier delay time. The default setting

 

milliseconds

is 200 milliseconds, which is optimum for SONET

 

 

protected circuits.

Step 11

 

 

Router(config-if)# pos trigger defect

(Optional) Configures a trigger to bring down the POS

 

ber_sd-b3

interface when the SONET bit error rate exceeds the

 

 

threshold set for the signal degrade alarm. Bringing the

 

 

POS interface down initiates the RPR wrap.

 

 

This command is recommended for all RPR POS

 

 

interfaces since excessive SONET bit errors can cause

 

 

packet loss on RPR traffic.

Step 12

 

 

Router(config-if)# no shutdown

Enables the POS port.

Step 13

 

 

Router(config-if)# end

Exits to privileged EXEC mode.

Step 14

 

 

Router# copy running-config

(Optional) Saves the configuration changes to NVRAM.

 

startup-config

 

 

 

 

 

 

 

Cisco ONS 15310-CL, ONS 15310-MA, and ONS 15310-MA SDH Ethernet Card Software Feature and Configuration Guide, R9.1 and R9.2

 

 

 

 

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ONS 15310-CL, ONS 15310-MA, Cisco 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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