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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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. Sample Chapter architectufe provided courtesy of Cisco Press.
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. Hardware Family The current Cisco WAAS hardware family consists of three router-integrated network modules, two desktop appliance models, and four rack-mounted appliance models. This can be coupled with a configuration that applies a specific DSCP marking to the packets within the flow. About Affiliates Cisco Systems, Inc.
This section examines the specifics of each of the current and legacy hardware platforms and positioning of each. Any appliance model can be used as a ssizing data center or edge branch office device, although performance and hardwqre recommendations presented in this chapter must be followed.
As flows are intercepted by the WAAS device and determined to be candidates for optimization, those flows are handed to the Application Traffic Policy ATP engine to identify what level of optimization and acceleration should be applied based on the configured policies and classifier matches. Return to Beginning Previous Section. 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.
The Cisco WAAS appliance family is designed to be deployed in a location of any size, including the small branch office, campus networks, or the largest of enterprise data center networks. About Affiliates Cisco Systems, Inc.
The disk encryption feature uses AES encryption, the strongest commercially available wizing, and keys are stored only in the WAAS device memory after they have been retrieved from the Central Manager during the device boot process.
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. Additionally, the increased memory configuration provides support for a greater amount of WAN bandwidth and optimized TCP connections. 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.
Cisco WAAS Architecture, Hardware, and Sizing
Additionally, the Enterprise license enables support for disk encryption and NetQoS integration. The list of configurable elements within a policy include the following:.
The Cisco WAE model WAE is a quad-core rack-mount system that is designed for deployment in large branch office locations or medium to large data center locations. Cisco WAAS is a software component that is resident on a hardware device deployed at each location with users and servers. See All Related Articles.
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. The distinction between the two is that a WAVE device, available only as an appliance, can also provide branch office virtualization services in conjunction with WAN optimization and application acceleration.
Cisco WAAS Architecture, Hardware, and Sizing > Cisco WAAS Product Architecture
Keys are stored in the Central Manager database which can be encrypted and synchronized among all Central Manager devices for high availability. 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.
The current Cisco WAAS hardware family consists of three router-integrated hardwate modules, two desktop appliance models, and four rack-mounted appliance models. Settings configured in the policy are employed in conjunction with one another. NOTE 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 waxs deployed these devices in their networks and wish to continue using them with WAAS v4.
Licensing Next Section Previous Section. 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 alarm book which covers syslog messages, SNMP traps, and Central Manager dashboard alarmserror book which covers console messagesand product documentation can be downloaded from Cisco. 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.
Sample Chapter is provided courtesy of Cisco Press. See All Related Articles. Transaction logs are not covered in this book, but a full reference on their usage can be found in the Cisco WAAS documentation. Anc Cisco WAE model WAE is a single-processor rack-mount system that is designed for deployment in small- and medium-sized branch office locations or small data center locations.
Sizkng appliance models and do not have externally accessible hard disk drives, and with a single hard disk drive, do not support RAID. 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 Archotecture WAE model WAE is a dual quad-core rack-mount system eight processors that is designed for deployment in the largest of enterprise data centers and under the most demanding conditions. Sizing of a Cisco WAAS solution requires consideration of a number of factors, including network conditions WAN bandwidth and LAN throughputnumber of users and concurrent optimized TCP connections, disk capacity and compression history, memory, concurrently connected peers, and virtualization requirements.
The Cisco Linux platform is hardened to ensure that rogue services are not installed and secured such that third-party software or other changes cannot be made.
Hardware Family > Cisco WAAS Architecture, Hardware, and Sizing
About Affiliates Cisco Systems, Inc. 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.
These include architecure 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 The network interception and bypass manager is used by the Cisco WAAS device to establish relationships with intercepting devices where necessary and ensure low-latency bypass of traffic that the WAAS device is not intended to handle.
This module is not capable of running the advanced services enabled by the Enterprise license discussed later in the chapterincluding application layer acceleration or disk encryption.