Cisco Systems OL-12518-01 manual QoS Requirements in Fcip

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Chapter 4 FCIP over IP/MPLS Core

QoS Requirements in FCIP

QoS Requirements in FCIP

Currently, most of the FCIP links are dedicated for pure Fibre Channel traffic. But in most cases if QoS is enabled, most of the SAN applications can be transported across the same traffic engineered infrastructure shared with traditional IP traffic. Because there are several QoS models, make sure the right Differentiated Services Code Point (DSCP) is applied to get the assumed results.

To ensure that one QoS model does not conflict with another application (that is, they can run on the same network), it is important for a common set of QoS priority markings to be used across the entire SP network that is in agreement with enterprise traffic. Following is a recommended set of class of service (COS) and MPLS EXP encodings for a typical application:

•0—Best effort

•1—Peak information rate (PIR)

•2—Committed information rate (CIR)/priority

•3—Cisco AVVID call control

•4—FCIP (this is just a recommendation; a full analysis of the network and application is required)

•5—Voice transport

•6—Video

•7—SP network management and control

Note The above DSCP values are just a recommendation; a network administrator may choose another consistent set of numbers if desired.

Cisco MDS supports DSCP values for marking all IP packets in the type of service (TOS) field in the IP header. You can specify different values for control and data:

•The control DSCP value applies to all FCIP frames in the control TCP connection.

•The data DSCP value applies to all FCIP frames in the data connection.

If the FCIP link has only one TCP connection, that data DSCP value is applied to all packets in that link.

The following command configures the control TCP connection and data connection to mark all packets on that DSCP value.

switch(config-profile)# tcp qos control 4 data 5

The following command reverts the switch to its factory default:

switch(config-profile)#no tcp qos control 4 data 5

QoS can also be applied using the Fabric Manager/Device Manager GUI. Figure 4-4shows a QoS value of 3 applied to Control and a value of 5 applied to Data using the management GUI.

 

 

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Contents A P T E R OverviewSAN Extension Through SP Network Typical Customer RequirementsCompression Support in Cisco MDS CompressionCompression Modes and Rate 2shows a comparison of the Cisco compression solutionsSecurity Cisco Compression SolutionsVPNSM-DES, 3DES MDS MPS-DES, 3DES, AES192 Cisco Encryption SolutionsWrite Acceleration Using Fcip Tape AccelerationTCP Parameters TCP OperationsTCP Maximum Bandwidth TCP Window SizeTCP Minimum Available Bandwidth Round Trip Time CiscoIPS Module Cisco Fcip Cisco MDSCPE Selection-Choosing between the 9216i Multiprotocol Services ModuleQoS Requirements in Fcip Synchronous Replication ApplicationsAsynchronous Replication Service Offering Scenario A-Disaster Recovery Service Offerings over FcipFcip over SP IP/MPLS Core for Disaster Recovery Solutions Service Offering Scenario B-Connecting Multiple SitesSP Mpls Service Offering Scenario C-Host-based MirroringCPE Mpls VPN CoreMpls VPN for Storage Architecture Using VRF VPNsLab Setup and Topology Testing Scenarios and ResultsTest Objectives MP BGP Configuration-PE1 VPN VRF-Specific ConfigurationsVRF Configuration-PE1 Gigabit Ethernet Interface Configuration-PE1MP BGP Configuration-PE2 Gigabit Ethernet Interface Configuration-PE2Scenario 1-MDS 9216i Connection to GSR Mpls Core VRF Configuration-PE2Configuring the MTU Configuring TCP Parameters on CPE Cisco MDSThroughput Scenario 2-Latency Across the GSR Mpls CoreScenario 3-Cisco MDS 9216i Connection to Cisco 7500 PE/GSR P Scenario 5-Impact of Core Performance Scenario 4-Impact of Failover in the Core17shows the MDS Fcip and compression latency Compression Ratio Comparisons Application RequirementsConclusion Remote Tape-Backup Applications

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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