Please refer to WAAS sizing guidelines to size specific to customer requirements. * NME Hardware Assist for Enterprise Class Virtual. Blades . TCP Proxy architecture provides LAN-like TCP behavior and provides higher levels of. Cisco WAN Optimization is an architectural solution comprising a set of tools and techniques that work together in a Table 1 – Cisco WAAS Central Manager sizing options. Device .. of the chosen hardware form-factor. All connections are . Independent Computing Architecture (ICA) Acceleration Charts Disks- 5 (RAID-5) is implemented in WAAS as a hardware feature. RAID-5 devices can . Complete the sizing phase that includes the following tasks.
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WAAS devices configured with the Transport license cannot provide Enterprise license features including application-acceleration capabilities, andd encryption, or any other features provided by other licenses.
Cisco WAAS devices can be configured to encrypt the data, swap, and spool partitions on the hard disk drives using encryption keys that are stored on and retrieved from the Central Manager. The WAE model is end-of-life and is not covered in this section; however, its performance and scalability metrics are covered in this chapter to support those who have already deployed sizibg devices in their networks and wish to continue using them with WAAS v4.
The product family scales from MB of memory to 24 GB of memory, utilizing single-processor subsystems up to dual quad-core processor subsystems. Return to Beginning Previous Section.
The ATP is consulted only during the establishment of a new connection, which is identified through the presence of the TCP synchronize SYN flag which occurs within the first packet of the connection.
Figure shows how the ATP engine interacts with a flow and a particular policy. The ATP is responsible for examining details of each incoming flow after being handled by the interception and bypass mechanisms in an attempt to identify the application or protocol associated with the flow.
By following the recommended guidelines for performance and scalability, a robust Architrcture WAAS design can be realized, thereby allowing administrators to deploy the solution confidently to improve archjtecture performance over the WAN while enabling centralization and consolidation of costly infrastructure. This section examines the specifics of each of the current and legacy hardware platforms and positioning of each.
Both methods of integration and interception are discussed in Chapter 4. The WAE appliance models, andalong with WAVE appliance modeleach have externally accessible hard disk drives and RAID support some models support hot-swappable disk drives. Any appliance model can be used as a core data center or edge branch office device, although performance and scalability recommendations presented in this chapter must be followed.
The Cisco WAVE model WAVE is a single-processor desktop model that is designed for deployment in small and medium-sized branch office locations or small data center locations. The reason for this level of configurability is the unique position of the WAE, which can be used for branch offices and data centers of virtually any size.
See All Related Articles. Licensing Next Section Previous Hafdware. It also looks at the licensing options for Cisco WAAS, positioning for each of the hardware platforms, and performance and scalability metrics for each of the platforms. When a classifier match is found, the ATP examines the sjzing configuration for that classifier to determine how to optimize the flow. The Cisco WAE model WAE is a dual-core processor rack-mount system that is designed for deployment in medium-sized branch office locations or medium-sized data center locations.
The compact flash card is used for boot-time operation and configuration files, whereas the hard disk storage is used for optimization data including object cache and Data Redundancy Elimination [DRE]swap space, software image storage repository, and guest operating system storage in the case of WAVE devices.
Cisco WAAS Architecture, Hardware, and Sizing
Performance and scalability metrics for each are examined later in this chapter, along with best practices around accurately sizing a Cisco WAAS deployment. The WAE is a hybrid device that is commonly used for larger branch offices and those where virtualization is requiredbut works equally well as a data center device where virtualization is not used.
The Cisco Wide-Area Application Engine family includes three network modules for the Integrated Services Router and six appliance models spanning two desktop models and four rack-mount appliance models. In addition, the ISR provides a strong foundation for application performance management APM solutions in that along with WAAS, other performance-related features can be configured, including quality of service QoS for network provisioning, Performance Routing Architecure for optimal path selection and network utilization, and NetFlow for visibility into traffic distribution, throughput, and other sizkng.
Hardware Family > Cisco WAAS Architecture, Hardware, and Sizing
This chapter provides an introduction to the Cisco WAAS hardware family, along with an in-depth examination of the hardware and software architecture. Sample Chapter is provided courtesy of Archhitecture Press. The current Cisco WAAS hardware family consists of three router-integrated network modules, two desktop appliance models, and four rack-mounted appliance models. Should a WAAS device be physically compromised or a disk stolen, power is removed from the device, which destroys the copy of the key in memory memory is not persistent.
NOTE The WAE qnd is end-of-life and is not covered in this section; however, its performance and scalability metrics are covered in this chapter to support those who have already deployed these devices in their networks and wish to continue using them with WAAS v4. The Cisco WAE model WAE is a quad-core rack-mount system that is designed for deployment in large branch office locations or medium archotecture large data center locations.
WAE appliance models andalong with WAVE appliance models, andare targeted toward branch office deployments, whereas the WAE appliance models, are targeted toward regional office and data center deployments. The interface manager also provides management over logical interfaces that can be configured over physical interfaces. This association is done by comparing the packet headers from each flow against a set of predefined, administratively configured, or dynamic classifiers, each with its own set of one or more match conditions.
Each WAAS appliance has expansion slots to support one or more additional feature cards, such as the inline bypass adapter, which has two two-port fail-to-wire pairs. Flows that do not have a match with an existing classifier are considered “other” traffic and are handled according to the policy defined for other traffic, which indicates that there are no classifier matches and that the default policy should be used.
The ISR is an ideal platform for the branch office in that it provides a converged service platform for the remote office, including routing, switching, wireless, voice, security, and WAN optimization in a single chassis platform, software version, and slot capacity dependent. Allows a WAAS device to apply all the WAN optimization provided by the Transport license and all the application acceleration functionality with the exception of Video which is licensed separately.
These include disk encryption, Central Management Subsystem CMSinterface manager, reporting facilities, network interception and bypass, application traffic policy ATP engine, and kernel-integrated virtualization services, as shown in Figure In either configuration, the WAE can provide full WAN optimization and application acceleration capabilities, but does not support virtualization.
Chapter Description This chapter provides an introduction to the Cisco WAAS hardware family, along with an in-depth examination of the hardware and software architecture.
The Cisco WAVE model WAVE is a single-processor desktop model that is designed for deployment in small- and medium-sized branch office locations or small data center locations. The Cisco Cisco WAE model WAE is a single quad-core rack-mount system four processors that is designed for deployment in large enterprise data centers.
Each Cisco WAAS device, regardless of form factor, is configured with some amount of hard disk storage and a compact flash card. It also looks at the licensing options for Cisco WAAS, positioning for each of the hardware platforms, and performance and scalability metrics for each of the platforms.
Cisco WAAS is a software component that is resident on a hardware device deployed at each location with users and servers. It also looks at the licensing options for Cisco WAAS, positioning for each of the hardware platforms, and performance and scalability metrics for each of the platforms.
Each WAAS device includes two integrated Gigabit Ethernet interfaces including the network modules, one interface is internal and shares connectivity to a peer interface in the router through the router backplane, the other is external and can be cabled to a LAN switch, similar to an appliance.
Cisco WAAS Architecture, Hardware, and Sizing > Cisco WAAS Product Architecture
The alarm book which cisxo syslog messages, SNMP traps, and Central Manager dashboard alarmserror book which covers console messagesand product documentation can be downloaded from Cisco. Hardware Family Next Section. Another logical interface is the PortChannel interface, which can be used to team WAAS device interfaces together for the purposes of high availability and load balancing.