C H A P T E R 4

FCIP over IP/MPLS Core

This chapter discusses the transport of Fibre Channel over IP (FCIP) over IP/Multiprotocol Label Switching (MPLS) networks and addresses the network requirements from a service provider (SP) perspective. This chapter also describes service architectures and storage service offerings using FCIP as a primary storage transport mechanism.

Overview

Storage extension solutions offer connectivity between disparate storage “islands,” and promote transport solutions that are specifically geared towards carrying storage area network (SAN) protocols over WAN and MAN networks. This emerging demand is providing a new opportunity for carriers. SPs can now deliver profitable SAN extension services over their existing optical (Synchronous Optical Network [SONET]/Synchronous Digital Hierarchy [SDH] and Dense Wavelength Division Multiplexing [DWDM]) or IP infrastructure. DWDM networks are ideal for high-bandwidth, highly resilient networks and are typically deployed within metro areas. Transporting storage traffic over the existing SONET/SDH infrastructure allows SPs to maximize the use of their existing SONET/SDH ring deployments. Some applications do not mandate stringent requirements offered by optical networks. These applications can be easily transported over IP networks using FCIP interfaces. The obvious advantage of transporting storage over IP is the ubiquitous nature of IP.

Disk replication is the primary type of application that runs over an extended SAN network for business continuance or disaster recovery. The two main types of disk replication are array-based (provided by EMC2 SRDF, Hitachi True Copy, IBM PPRC XD, or HP DRM, and host-based (for example, Veritas Volume Replicator). Both disk replication types run in synchronous and asynchronous modes. In synchronous mode, an acknowledgement of a host-disk write is not sent until a copy of the data to the remote array is completed. In asynchronous mode, host-disk writes are acknowledged before the copy of the data to the remote array is completed.

Applications that use synchronous replication are highly sensitive to response delays and might not work with slow-speed or high-latency links. It is important to consider the network requirements carefully when deploying FCIP in a synchronous implementation. Asynchronous deployments of FCIP are recommended in networks with latency or congestion issues. With FCIP, Fibre Channel SAN can be extended anywhere an IP network exists and the required bandwidth is available. FCIP can be extended over metro, campus, or intercontinental distances using MPLS networks. FCIP may be an ideal choice for intercontinental and coast-to-coast extension of SAN.

Data Center High Availability Clusters Design Guide

 

OL-12518-01

4-1

 

 

 

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Cisco Systems OL-12518-01 manual Overview, A P T E R
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OL-12518-01 specifications

Cisco Systems OL-12518-01, also known as the Cisco Management Services for Wireless LAN Controller, is a key component for businesses seeking to enhance their wireless networking capabilities. This product offers a comprehensive management solution designed to ensure high performance and security of wireless networks.

One of the main features of OL-12518-01 is its centralized management interface, which simplifies the deployment and operation of multiple access points across an organization. This centralized approach allows network administrators to manage all wireless devices from a single pane of glass, significantly improving operational efficiency and reducing the potential for human error.

The product is built upon various robust technologies that enhance its performance. It includes advanced features like Quality of Service (QoS) support, which prioritizes bandwidth for critical applications. This ensures that mission-critical operations run smoothly, even in environments with high user density. Furthermore, the Wireless LAN Controller supports a variety of security protocols, including WPA3, ensuring that user data and wireless networks are protected against unauthorized access.

A significant characteristic of OL-12518-01 is its scalability. As businesses grow, their network requirements can change dramatically. The Cisco Management Services solution is designed to scale easily alongside the organization’s needs, allowing for the addition of more access points and the integration of advanced features seamlessly. This adaptability makes it suitable for both small businesses and large enterprises, ensuring consistent wireless connectivity across diverse spaces.

Moreover, OL-12518-01 features robust analytics and reporting capabilities. It provides valuable insights into network performance and user behavior, enabling administrators to make informed decisions about resource allocation and troubleshooting. With real-time monitoring tools, IT staff can quickly identify and resolve issues, minimizing downtime and enhancing overall user experience.

In summary, Cisco Systems OL-12518-01 is a powerful wireless LAN management solution that combines centralized management, advanced security features, scalability, and comprehensive analytics. These characteristics make it an ideal choice for organizations aiming to optimize their wireless networking performance while ensuring security and reliability in their operations. By investing in OL-12518-01, businesses can achieve a robust wireless infrastructure that meets their current and future needs.
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