Chapter 5 Configuring POS on the ML-Series Card

Configuring the POS Interface

•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 5-2.

Table 5-2

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-100T-8 Ethernet Operation.” 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.

Configuring the POS Interface

The user can configure framing mode, encapsulation, and Cisco IOS SONET alarm reporting parameters through Cisco IOS.

Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5

 

78-18133-01

5-3

 

 

 

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Cisco Systems 15310-CL Configuring the POS Interface, GFP-F Framing Hdlc Framing, Encapsulations LEX default Cisco Hdlc
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15310-CL, 15310-MA specifications

Cisco Systems has established itself as a leader in the networking domain, offering a wide array of solutions to meet the needs of modern businesses. Among its impressive product lineup are the Cisco 15310-CL and 15310-MA routers, designed to provide advanced network performance and reliability.

The Cisco 15310-CL is a versatile platform that primarily serves as a carrier-class router aimed at supporting high-speed data and voice services. It is built to handle the demands of large enterprises and service providers, offering a robust design that ensures maximum uptime and performance. One of its standout features is its modular architecture, which enables users to customize their configurations based on specific application needs. This scalability allows for future expansion without the need for a complete hardware overhaul.

Key technologies integrated into the Cisco 15310-CL include high-density Ethernet interfaces and a comprehensive suite of Layer 2 and Layer 3 protocol support. The device is capable of supporting multiple types of connections, including TDM, ATM, and Ethernet. This flexibility makes it an ideal choice for organizations that require seamless migration between various service types. Moreover, with features such as MPLS (Multiprotocol Label Switching) support and advanced Quality of Service (QoS) mechanisms, the router ensures that critical applications receive the necessary bandwidth and low latency required for optimal performance.

In contrast, the Cisco 15310-MA focuses on access solutions, providing a cost-effective entry point for businesses looking to enhance their network capabilities. It is well-suited for smaller offices or branch locations that need reliable connectivity without the expense and complexity associated with larger systems. The device supports a range of access methods and provides essential features like firewall capabilities, VPN support, and comprehensive security measures to protect sensitive data.

Both models benefit from Cisco's commitment to security and manageability, offering features like enhanced encryption protocols and user authentication mechanisms that help safeguard networks against threats. Additionally, they can be managed through Cisco’s intuitive software tools, simplifying configuration and monitoring tasks for IT administrators.

The Cisco 15310-CL and 15310-MA are ideal solutions for businesses seeking to enhance their network infrastructure, ensuring firms can keep pace with evolving technology demands while maintaining a focus on security and performance. Their combination of advanced features, modular capabilities, and robust support makes them valuable assets in the networking landscape.
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