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Cisco wide area application services software waas

cisco wide area application services software waas

Cisco WAAS is able to improve end user experience and reduce bandwidth for key applications including but not limited to; Microsoft Exchange. Cisco ® Wide Area Application Services (WAAS) currently provides the industry's most scalable, highest-performance WAN optimization solution. Cisco WAAS can. Cisco Wide Area Application Services (WAAS) Software - Some links below may open a new browser window to display the document you selected. FORTINET AUTHENTICATOR WITH ACTIVE DIRECTORY Традиционно люди области и в любые детскую одежду. Широкий спектр Киеву Доставка где приобрести детскую одежду. Режим работы на сумму.

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When client and server applications attempt to communicate with each other, the network intercepts and redirects this traffic to the WAEs so that they can act on behalf of the client application and the destination server. The WAEs examine the traffic and use built-in application policies to determine whether to optimize the traffic or allow it to pass through your network unoptimized.

Table describes how Cisco WAAS uses a combination of TCP optimization techniques and application acceleration features to overcome the most common challenges associated with transporting traffic over a WAN. Intelligent protocol adapters reduce the number of roundtrip responses common with chatty application protocols.

Data caching provided with the file services feature and data compression reduce the amount of data sent over the WAN, which increases data transfer rates. These solutions improve application response time on congested links by reducing the amount of data sent across the WAN. TCP optimization features improve network throughput by reducing the number of TCP errors sent over the WAN and maximizing the TCP window size that determines the amount of data that a client can receive at one time.

The following steps describe how your WAAS network optimizes a connection between a branch office client and a destination server:. A branch office client attempts to connect to the destination server over the native application port. The Edge WAE performs the following actions:. For a list of the default policies, see "Default Application Policies.

The Edge WAE passes along the client request through the network to its original destination server. The Core WAE performs the following actions:. If the Core WAE has optimization disabled, then an optimized connection will not be established and the traffic passes over the network unoptimized. Note In the event that unoptimized traffic reaches a WAE, the WAE forwards the traffic in pass-through mode without affecting the performance of the application using the passed-through connection.

Cisco WAAS contains the following services that help optimize traffic over your wide area network:. TFO protects communicating clients and servers from negative WAN conditions, such as bandwidth constraints, packet loss, congestion, and retransmission. These compression technologies reduce the size of transmitted data by removing redundant information before sending the shortened data stream over the WAN. By reducing the amount of transferred data, WAAS compression can reduce network utilization and application response times.

When a WAE uses compression to optimize TCP traffic, it replaces repeated data in the stream with a much shorter reference, then sends the shortened data stream out across the WAN. The receiving WAE uses its local redundancy library to reconstruct the data stream before passing it along to the destination client or server. The WAAS compression scheme is based on a shared cache architecture where each WAE involved in compression and decompression shares the same redundancy library.

LZ compression operates on smaller data streams and keeps limited compression history. DRE operates on significantly larger streams typically tens to hundreds of bytes or more and maintains a much larger compression history. Large chunks of redundant data is common in file system operations when files are incrementally changed from one version to another or when certain elements are common to many files, such as file headers and logos.

The receive window size determines the amount of space that the receiver has available for unacknowledged data. Windows scaling allows TCP endpoints to take advantage of available bandwidth in your network and not be limited to the default window size specified in the TCP header.

Increasing TCP's initial window size provides the following advantages:. With an initial window of at least two segments, the receiver generates an ACK response after the second data segment arrives, eliminating the wait on the timeout. This increased buffer helps the two WAEs participating in the connection keep the link between them full, increasing link utilization.

Selective Acknowledgement SACK is an efficient packet loss recovery and retransmission feature that allows clients to recover from packet losses more quickly than the default recovery mechanism used by TCP. By default, TCP uses a cumulative acknowledgement scheme that forces the sender to either wait for a roundtrip to learn if any packets were not received by the recipient or to unnecessarily retransmit segments that may have been correctly received.

SACK allows the receiver to inform the sender about all segments that have arrived successfully, so the sender only needs to retransmit the segments that have actually been lost. When your network experiences a packet loss event, BIC TCP reduces the receiver's window size and sets that reduced size as the new value for the minimum window. BIC TCP then sets the maximum window size value to the size of the window just before the packet loss event occurred.

Because packet loss occurred at the maximum window size, the network can transfer traffic without dropping packets whose size falls within the minimum and maximum window size values. If BIC TCP does not register a packet loss event at the updated maximum window size, that window size becomes the new minimum.

If a packet loss event does occur, that window size becomes the new maximum. To resolve this issue, each WAAS device contains application proxies that can respond to messages locally so that the client does not have to wait for a response from the remote server. The application proxies use a variety of techniques including caching, command batching, prediction, and resource prefetch to increase the response time of remote applications.

Cisco WAAS uses application-intelligent software modules to apply these acceleration features. In a typical CIFS application use case, the client sends a large number of synchronous requests that require the client to wait for a response before sending the next request. Compressing the data over the WAN is not sufficient for acceptable response time.

If all these requests are sent over a ms round-trip WAN, the response time is at least 70 seconds x 0. Each WAAS device uses application policies to match specific types of traffic to an application and to determine whether that application traffic should be optimized and accelerated. The file services feature allows a WAE to store remote file server data in its local cache so that the WAE can quickly fulfill a client's data request instead of sending that request over the WAN to the file server.

By fulfilling the client's request locally, the WAE minimizes the traffic sent over the WAN and reduces the time it takes branch office users to access files and many desktop applications, allowing enterprises to consolidate their important information into data centers. This provides users with faster first-time file access, and makes more efficient use of available bandwidth.

File blocking policies prevent bandwidth, as well as file server and cache space, from being wasted on files that system administrators decide to block. The Edge WAE is a client-side, file-caching device that serves client requests at remote sites and branch offices. The device is deployed at each branch office or remote campus, replacing file and print servers and giving local clients fast, near-LAN read and write access to a cached view of the centralized storage.

By caching the data most likely to be used at these sites, Edge WAEs greatly reduce the number of requests and the volume of data that must be transferred over the WAN between the data center and the edge. Data returned from the data center is distributed by the Edge WAE to the end user who requested it.

The Core WAE is a server-side component that resides at the data center and connects directly to one or more file servers or network-attached storage NAS. Core WAEs are placed between the file servers at the data center and the WAN connecting the data center to the enterprise's remote sites and branch offices.

The data center Core WAEs can provide load balancing and failover support. Core WAEs can be arranged in logical clusters to provide scalability and automatic failover capabilities for high-availability environments. This functionality eliminates the need for a separate print server in the branch office. WAAS print services include the following features:. The default administrator username is admin and the password is default.

For information on creating accounts and changing passwords, see Chapter 7, "Creating and Managing Administrator User Accounts. Allows you to configure WAAS services and general settings such as authentication for a specific device or device group.

You can also view detailed device information and messages. The settings you configure from this tab are device- and group-specific and are not applied globally to all devices in your WAAS network. Allows you to configure the main WAAS services file, print, and application acceleration.

Allows you to perform common system tasks, such as setting up user accounts and roles and viewing system logs. Deletes a WAAS element, such as a device, device group, print driver, or file service policy.

Creates a new WAAS element, such as a file service policy or an acceleration policy. Filters the information in a table to make it easier to locate a specific item. Displays all items in a table on a single page instead of displaying those items over multiple pages. Selects all valid items in a table. For example, if you are distributing print drivers to a WAAS print server, you can click this icon to select all drivers in the list that the print server should download.

For more information, see the "Rebooting a Device or Device Group" section on page Forces the device group configuration across all devices in that group. Allows you to select another device group to associate with the baseline group. For more information, see the "Switching the Baseline Group for a Service" section. Allows you to specify device-specific settings that override the group settings for the device. Attempts to download print drivers that previously failed to be distributed to the WAAS print server or device group.

Restores the default application policies on the device or device group. For more information, see the "Restoring Application Policies and Classifiers" section on page Restores basic policies and classifiers that optimize only WAFS traffic. All other traffic passes through the system unoptimized. For more information, see the "Viewing Connections and Peer Devices" section on page Displays the configuration page used to create new applications.

For more information, see the "Viewing a List of Applications" section on page For more information, see the "Viewing the System Message Log" section on page Each command mode has its own set of commands to use for the configuration, maintenance, and monitoring of a WAE. The commands that are available to you depend on the mode you are in. When you enter a question mark?

This mode is divided into two access levels: user and privileged. To use the privileged access level, enter the enable command at the user access level prompt, then enter the privileged EXEC password when you see the password prompt.

To use this mode, enter the configure command from the privileged EXEC mode. To use this mode, enter the interface command from the global configuration mode. IT administrators can also perform the following tasks:. The full file system semantics, such as security, concurrency, and coherency, are preserved between each client and file server. Cisco WAAS also has no impact on any security technology currently deployed. Its file cache appears on the office's LAN in the same way as a local file server.

End users can map their personal document folders onto the file cache using Windows or UNIX utilities. A cached copy of user data is stored locally in the Edge WAE for fast access. The master copy is stored centrally in the well-protected data center. Backup and restore operations become simpler, faster, and more reliable than when the data was decentralized.

In the event of data loss, backup files exist in the data center and can be quickly accessed for recovery purposes. The amount of data loss is greatly reduced because of the increased frequency of backups performed on the centralized storage in the data center. This centralized storage backup makes disaster recovery much more efficient and economical than working with standalone file servers or NAS appliances.

A critical part of achieving this goal over the enterprise WAN is the proprietary protocol that optimizes the way traffic is forwarded between the WAEs. To copy the backup database file to a remote location, run the copy disk command:. Verify that the backup file is copied correctly by verifying the file size and time stamp. The following example shows the file in the root directory. To verify that the new image is loaded correctly, run the show version command. To ensure that the database has been synchronized, confirm the database last synchronization time by running the show cms info command.

From the Software Files drop-down list, choose the new software version. To confirm that the CMS services are running, run the show cms info command. Perform the following tasks before you upgrade the branch Cisco WAE devices:. Verify that all the Cisco WAE devices are online the status light indicator for each device is green. Run the copy ftp command.

You can use either Universal or Accelerator-only images. To verify that the correct licenses are installed, run the show license command. If you have purchased an Enterprise license and have enabled it, proceed to Step If you have purchased an Enterprise license and have not yet enabled it, perform the following tasks:. To clear the Enterprise license, run the clear license transport command.

To add the Enterprise license, run the license add enterprise command. To save the changed configuration, run the copy running-config startup-config command. Optional To confirm that flows are being optimized, run the show statistics connection command. To confirm that the Enterprise license is enabled, run the show license command.

If you have purchased an Enterprise license and it is enabled, proceed to Step To clear the Transport license, run the clear license transport command. Verify that all Cisco WAE devices are online the status light indicator is green. Upgrade each data center Cisco WAE. If your deployment does not use WCCP, use one of the following methods to remove each data center Cisco WAE from the interception path during the upgrade process:. For a deployment using serial inline cluster: Shut down the interfaces on the intermediate Cisco WAE in the cluster, and then shut down the interfaces on the optimizing Cisco WAE in the cluster.

To verify that WCCP is disabled, run the show wccp status command. Optional To disable WCCP on the intercepting router or switch, run the no ip wccp global configuration command. To enable WCCP, run the ip wccp 61 redirect-list acl-name command and the ip wccp 62 redirect-list acl-name command. To verify that redirecting router IDs are seen, run the show wccp routers command. To verify that all Cisco WAEs in the cluster are seen, run the show wccp clients command. To verify that the packet count to the WAE is increasing and no loops are detected, run the show wccp statistics command.

To verify that the buckets assigned for Service Group 61 match those of Service Group 62 , and are assigned to the WAE, run the show wccp flows tcp-promiscuous detail command. To verify that flows are being optimized, run the show statistics connection command. For information on the sets of tasks to enable and reconfigure WCCP, and information on configuring accelerators, switches and routers for migration, see the Cisco Wide Area Application Services Upgrade Guide.

After upgrading application accelerator Cisco WAEs, verify that the proper licenses are installed by running the show license command. The Transport license is enabled by default. If any of the application accelerators were enabled on the device before the upgrade, you should enable the Enterprise license.

Configure any additional licenses as needed by running the license add command. After upgrading application accelerator Cisco WAEs, verify that the proper application accelerators, policies, and class maps are configured. For more information on configuring accelerators, policies, and class maps, see the chapter "Configuring Application Acceleration" in the Cisco Wide Area Application Services Configuration Guide.

Because the setup utility is designed for use on new installations, any existing configuration for WCCP router list 7 is replaced with the new configuration. The passwords that need to be re-entered include user passwords. Restoring the database to a different device will retain the device identity and will not allow you to reuse the current hardware in a different role. If you want to migrate the service to a new device, register the device as a standby Cisco WAAS Central Manager first, and then change its role after database synchronization.

Move the backup file to a separate device by running the copy disk ftp command. You can do this in the setup utility or by using the interface global configuration command. To restore all the CLI configurations, choose Option 1. You can use the Central Manager Software Update window or run the copy ftp install command. If you reboot while the device is rebuilding, you risk corrupting the file system. When you see that RAID is rebuilding, you must let it complete that rebuild process.

This rebuild process may take several hours. If you do not wait for the RAID pairs to complete the rebuild process before you reboot the device, you may see the following symptoms that indicate a problem:. Other unusual behaviors relating to disk operations or the inability to perform them occur. The observed symptom is an exception related to an unexpected subelement because of the new element for example, a deviceName element in the XML response.

To work around this problem, we recommend that you patch the WSDL2Java tool library to silently consume exceptions if new elements are found in XML responses and then regenerate the client stubs. This approach avoids future problems if the API is enhanced with new elements over time. List the files in the axis2-adb-codegen- version. This section contains downgrade path guidelines and downgrade component and data guidelines:.

Any reports and charts that are not supported in the downgrade version are removed from managed and scheduled reports when you downgrade to an earlier version. You must switch to user-passphrase mode before you can downgrade to a software version that does not support auto-passphrase mode.

To downgrade, you should first remove the AppID and nested class map configurations from the AppNav XE cluster and then proceed with the downgrade. When downgrading a Cisco AppNav Controller device to a version earlier than 5. Reregister the device. Alternatively, you can reregister the device before downgrading.

If you do not deregister the device before downgrading, the device goes offline and the device mode is not set correctly. In such a scenario, run the cms deregister force EXEC command to deregister the device and then reregister it by running the cms enable global configuration command. Downgrading the database may trigger full updates for registered devices. The video output is for troubleshooting purposes only during BIOS boot and stops displaying output as soon as the serial port becomes active.

In the Cisco WAAS Central Manager, we recommend that you run system-wide reports in device groups of devices or less, or schedule these reports at different time intervals so that multiple system-wide reports are not running simultaneously and do not reach the limit of the HTTP object cache. Autoregistration is designed to operate on the first network interface and will not work if this interface is part of a port-channel interface or standby interface.

Do not enable the auto-register global configuration command when the interface is configured as part of a port channel or standby interface. You can use the policy rules to exclude from acceleration any file servers that use the FAT32 file system. The certificate request occurs to support Cisco WAAS Express registration and is ignored by Internet Explorer if no personal certificates are installed. To avoid this prompt from being displayed, remove the installed personal certificates or use a different browser.

This section contains the resolved caveats and open caveats for Cisco Software Version 6. The following caveats are open in Cisco Software Version 6. Note that there might be additional open caveats from previous releases that are applicable to this release, unless they are specifically listed as resolved.

SMB AO restarts when signed session and unsigned anonymous share session established in single flow. Skip to content Skip to search Skip to footer. Log in to Save Content. Available Languages. Download Options. Updated: September 4, This section contains the following topics: Cisco Software Version 6. The following features are newly available on WAAS software version 6.

This section contains the following topics:. The following additional files are also included: waas-rescue-cdrom VMware vCenter Server version 6. A known issue in Chrome Version In all other Chrome versions, earlier and later than Chrome Version Table 3. Table 5. Note ISR Platforms running software version We recommend that you use IOS version X since name includes invalid character '. Table 6. Table 7. Configure for passthrough traffic.

Port Communicates with the distribution point. If these configurations are not present, the following error message is displayed: PXE error code For more information on traffic interception methods, see the chapter "Configuring Traffic Interception" of the Cisco Wide Area Application Services Configuration Guide. Before you begin. Router config no ip wccp 61 Router config no ip wccp Router config ip wccp 61 Router config ip wccp This section contains the following procedures:.

Consider the following guidelines for upgrading your device:. CM script execute kerberos validation. It does following tests: 1. Active Directory reachability test 2. KDC service functionality test For this test to succeed device must have to join the domain before this test, if not have joined already. Please make sure they are not blocked for outbound traffic. It may take some time, please wait Table 8. Table 9. Table The cms database backup command displays the following information:.

Resolve any alarm conditions that may exist. To reload the Cisco WAE, run the reload command. Step 2 Optional To disable WCCP on the intercepting router or switch, run the no ip wccp global configuration command. Consider the following command parameters and guidelines:. Restored data will be automatically upgraded when cms services are enabled.

Restoring the backed up data. Secure-Store will be re-initialized. Secure-store is initialized and opened. Choose type of restoration. Fully restore all CLI configurations. Partially restore CLI configurations, omitting network configuration settings. Do not restore any CLI configurations from the backup. Please enter your choice : [2] 1 Please enable the cms process using the command 'cms enable' to complete the cms database restore procedure. Use the WDL2Java tool to execute the client code using the modified jar.

This section contains downgrade path guidelines and downgrade component and data guidelines: Downgrade path guidelines: Downgrading from Cisco WAAS Version 6. Locked-out user accounts are reset upon a downgrade. Please reload for the new configuration to take effect. CM copy ftp install

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