DA-MAC and 0x00 for Unknown DA-MAC | Cisco Systems ONS 15310-CL

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

Understanding RPR

Figure 15-3		RPR Frame for ML-Series Card
1 byte	1 byte	1 byte	2 bytes			68-1522 bytes	2-4 bytes	1 byte

Flag	Add	Control	Protocol			RPR Payload	CRC	Flag

0x7E	0x0F	0x00	0x0042					0x7F
				4 byte	4 bytes	60-1514 bytes
				4 byte	4 bytes	60-1514 bytes

				RPR Address	RPR Control	Ethernet Payload

7 byte	1 byte 6 bytes 6 bytes			6 bytes	46-1500 bytes	4 bytes
Preamble	SFD	DA	SA	Ln/Type	Data/Pad	FCS

134984

The RPR framing and header includes a number of fields, including four bytes for source and destination station information and another four bytes for RPR control and quality of service (QoS). Figure 15-4illustrates the RPR frame format. Table 15-1defines the most important fields.

Figure 15-4

RPR Frame Fields

15 14 13 12 11 10

3 2

Protocol (RPR V1)

Destination ID

Destination Station

Source ID

Source Station

PRI

TTL

Wrap Station

RSVD

Type

Payload (Ethernet Frame)

134982

Table 15-1

Definitions of RPR Frame Fields

Destination Station

An eight-bit field specifying the MAC address of a specific ML-Series card in

the RPR as the destination. It has two well-known addresses, 0xff for Multicast

DA-MAC and 0x00 for Unknown DA-MAC.

Source Station

An eight-bit field specifying the MAC address of a specific ML-Series card in

the RPR as the source.

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

78-19415-01

15-5

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.

Cisco Systems ONS 15310-CL manual DA-MAC and 0x00 for Unknown DA-MAC, RPR as the source, 15-5

Models: ONS 15310-CL ONS 15310-MA Cisco ONS 15310-MA

RPR Frame for ML-Series Card

FCS