Chapter 6 Configuring POS on the ML-Series Card

Understanding POS on the ML-Series Card

•Path-level alarms and conditions, including loss of pointer (LOP), unequipped (UNEQ-P), payload mismatch (PLM-P), alarm indication signal (AIS) detection, and remote defect indication (RDI)

•J1 path trace for high-order paths

Framing Mode, Encapsulation, Scrambling, MTU and CRC Support

The ML-Series card on the ONS 15310-CL and ONS 15310-MA supports high-level data link control (HDLC) framing and frame-mapped generic framing procedure (GFP-F) framing. Supported encapsulation and cyclic redundancy check (CRC) sizes for the framing types are detailed in Table 6-2.

Table 6-2

ML-Series Card Encapsulation, Framing, and CRC Sizes

 

 

 

 

 

 

 

GFP-F Framing

HDLC Framing

 

 

 

 

 

Encapsulations

 

LEX (default)1

LEX (default)

 

 

Cisco HDLC

 

 

 

 

PPP/BCP

 

 

 

 

 

 

 

CRC Sizes

 

32-bit (default)

32-bit (default)

 

 

 

None (FCS disabled)

 

 

 

 

 

1. RPR requires LEX encapsulation in either framing mode.

LEX is the common term for Cisco-EoS-LEX, which is a proprietary Cisco Ethernet-over-SONET encapsulation. This encapsulation is available on most ONS Ethernet cards. When the ML-Series card is configured for GFP-F framing, the LEX encapsulation is in accordance with ITU-T G.7041 as standard mapped Ethernet over GFP. Under GFP-F framing, the Cisco IOS CLI also uses this lex keyword to represent standard mapped Ethernet over GFP-F.

LEX encapsulation is the required and default encapsulation for RPR on the ML-Series card. The maximum transmission unit (MTU) size is not configurable and is set at a 1500-byte maximum (standard Ethernet MTU). In addition, the ML-Series card supports baby giant frames in which the standard Ethernet frame is augmented by IEEE 802.1 Q tags or Multiprotocol Label Switching (MPLS) tags. It does not support full Jumbo frames.

The ML-Series card supports GFP null mode. GFP-F client-management frames (CMFs) are counted and discarded.

The ML-100T-8 card is interoperable with the ONS 15310-CL and ONS 15310-MA CE-100T-8 card and several other ONS Ethernet cards. For specific details on the ONS 15310-CL and ONS 15310-MA CE-100T-8 card’s encapsulation, framing, and CRC, see Chapter 17, “CE-Series Ethernet Cards.” For specific details on interoperability with other ONS system Ethernet cards, including framing mode, encapsulation, and CRC, refer to the “POS on ONS Ethernet Cards” chapter of the Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide.

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

6-3

 

 

 

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Cisco Systems ONS 15310-MA, ONS 15310-CL manual GFP-F Framing Hdlc Framing, Encapsulations LEX default Cisco Hdlc, Ppp/Bcp
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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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