Table Of Contents
Release Note for Cisco Wide Area Application Services Software Version 4.1.3x
Software Version 4.1.3b Functionality Changes
Software Version 4.1.3a Functionality Changes
Software Version 4.1.3 New and Changed Features
Upgrading and WCCP Interoperability
Upgrading from a Prerelease Version to Version 4.1.3x
Upgrading from Version 4.0.x or 4.1.1x to 4.1.3x
Ensuring a Successful RAID Pair Rebuild
Managing Passwords after an Upgrade
Downgrading from Version 4.1.3b to a Previous Version
Cisco WAE and WAVE Appliance Boot Process
Cisco WAE-674, WAE-7341, and WAE-7371 RAID Controller Firmware Upgrade
Cisco WAE-612 Hard Disk Drive Replacement Notification
Configuring Router Buffer Size
Virtual Blade Configuration From File
Using Autoregistration with Port-Channel Interfaces
WAFS Support of FAT32 File Servers
Software Version 4.1.3b Resolved and Open Caveats
Software Version 4.1.3b Resolved Caveats
Software Version 4.1.3b Open Caveats
Software Version 4.1.3a Resolved and Open Caveats
Software Version 4.1.3a Resolved Caveats
Software Version 4.1.3a Open Caveats
Software Version 4.1.3 Resolved Caveats, Open Caveats, and Command Changes
Software Version 4.1.3 Resolved Caveats
Software Version 4.1.3 Open Caveats
Software Version 4.1.3 Command Changes
Software Version 4.1.3 Monitoring API Changes
Obtaining Documentation and Submitting a Service Request
Release Note for Cisco Wide Area Application Services Software Version 4.1.3x
December 13, 2010
Note The most current Cisco documentation for released products is available on Cisco.com.
Contents
This release note applies to the following software versions for the Cisco Wide Area Application Services (WAAS) software:
•4.1.3b
•4.1.3a
•4.1.3
For information on WAAS features and commands, see the WAAS documentation located at http://www.cisco.com/en/US/products/ps6870/tsd_products_support_series_home.html.
Note The WAAS Central Manager must be the highest version of all devices in your WAAS network. Upgrade the Central Manager first before any other devices.
This release note contains the following sections:
•Upgrading and WCCP Interoperability
•Upgrading from a Prerelease Version to Version 4.1.3x
•Upgrading from Version 4.0.x or 4.1.1x to 4.1.3x
•Downgrading from Version 4.1.3b to a Previous Version
•Cisco WAE and WAVE Appliance Boot Process
•Cisco WAE-674, WAE-7341, and WAE-7371 RAID Controller Firmware Upgrade
•Cisco WAE-612 Hard Disk Drive Replacement Notification
•Software Version 4.1.3b Resolved and Open Caveats
•Software Version 4.1.3a Resolved and Open Caveats
•Software Version 4.1.3 Resolved Caveats, Open Caveats, and Command Changes
•Obtaining Documentation and Submitting a Service Request
New and Changed Features
The following sections describe the new and changed features and functionality in software version 4.1.3x:
•Software Version 4.1.3b Functionality Changes
•Software Version 4.1.3a Functionality Changes
•Software Version 4.1.3 New and Changed Features
Software Version 4.1.3b Functionality Changes
•CIFS preposition operation has been altered to allow concurrent preposition tasks.
Software Version 4.1.3a Functionality Changes
•WAAS software version 4.1.3a includes a functionality change for Central Manager usernames. Usernames are now case sensitive.
•CIFS preposition operation has been altered to streamline concurrent preposition tasks from one or more branches in a serialized manner at the core WAAS device. Depending on the actual preposition usage and number of concurrent tasks scheduled, you may notice an increase in time for all concurrent tasks to execute or complete.
Software Version 4.1.3 New and Changed Features
WAAS software version 4.1.3 includes the following new features and changes:
•SSL application accelerator—The new SSL application accelerator optimizes traffic on Secure Sockets Layer (SSL) encrypted connections. The SSL application accelerator provides a scalable, secure vault for server private keys and certificate management so that the WAAS software can optimize the traffic on the SSL link while maintaining the security of the connection. A new application definition named SSL was created and the HTTPS classifier was associated with this application. The WAAS Central Manager includes several new SSL configuration pages and there are corresponding new CLI commands.
•Application accelerators—All application accelerators were improved to increase stability and performance.
•Video accelerator—The video accelerator handling of unaccelerated traffic was enhanced to allow dropping traffic that is unaccelerated only due to an overload condition.
•Traffic Optimization—Basic traffic optimization including TFO, DRE, and LZ was improved to increase stability and performance.
•Monitoring and reporting—WAAS Central Manager monitoring and reporting capabilities were improved with new and reorganized charts and graphs, and better statistical reporting. Additionally, several CLI show commands were improved with additional output fields.
•WAAS Central Manager usability—The WAAS Central Manager was improved in many areas to increase usability and scalability. Certain functions were renamed and reorganized into different groups or drawers in the navigation pane.
•Virtualization—Virtual blade capabilities were expanded to allow additional virtual blades and lower the memory requirements, depending on the hardware platform. A new WAAS Central Manager windows allows you to copy disk images to a virtual blade and back up and restore virtual blades. A Refresh button was added in the virtual blade Actions window to refresh the virtual blade status. To improve security, a new CLI command allows you to disable the VNC server on a virtual blade.
•WCCP configuration—The WAAS Central Manager WCCP configuration pages were consolidated and improved to simplify the WCCP configuration.
•Secure store—The secure store initialization procedure was improved so that initializing the secure store also opens it, making it unnecessary to perform a second step to open it. In addition, a WAAS Central Manager page was added to allow you to initialize and open the secure store and change the password. A new CLI command allows you to reset the secure store in case you forget the password.
•System properties—New system properties were added to set the maximum number of concurrent WAAS Central Manager sessions permitted for a user, to configure a filter for Central Manager input fields, and to configure the replication of statistics data to a standby Central Manager.
•Interface configuration—The new src-dst-ip-port option replaces dst-ip as a method of port channel load balancing. Additionally, you can configure only a single standby interface group, rather than four groups.
•Disk error handling—Disk error handling is now automatic and so the threshold and reload settings are no longer configurable.
•CLI commands—For CLI command changes, see the "Software Version 4.1.3 Command Changes" section.
•Monitoring API—For Monitoring API changes, see the "Software Version 4.1.3 Monitoring API Changes" section.
Upgrading From WAFS to WAAS
Although WAFS to WAAS migration is supported, a rollback from WAAS to WAFS is not supported. For information regarding a WAFS-to-WAAS migration, contact your Cisco Sales Engineer.
If you are upgrading from WAFS 3.0.7 or later to WAAS, you must upgrade to a released WAAS version; you cannot upgrade to a prerelease version of WAAS software.
If you are upgrading from the WAFS 3.0.7-special5 build or from a later WAFS release to WAAS, you must upgrade to a minimum of WAAS 4.0.5 or later; however, to ensure that you obtain all of the latest fixes and features, we recommend that you upgrade to the most current version of WAAS.
Note the following points when upgrading from WAFS to WAAS:
•When you upgrade from WAFS to WAAS, you may lose up to half of the WAFS cache space because the upgrade process uses the WAFS cache eviction process to reclaim the space needed for the DRE cache; the oldest content is removed first.
•The hardware that supports WAFS 3.0 also supports WAAS, with the exception of the NM-CE.
•You need a dedicated WAE to function as the Central Manager in WAAS.
•You must place the WAEs in a separate subnet from the clients, or you must use the GRE return feature.
•After migrating from WAFS to WAAS, reenter the file server credentials from the WAAS Central Manager GUI.
Upgrading and WCCP Interoperability
For Central Managers running version 4.1.3x to manage WAEs running previous versions of 4.0.x and 4.1.x, all WAEs in a given WCCP farm must be running the same version.
To upgrade the WAEs in your WCCP farm, follow these steps:
Step 1 You must disable WCCP redirection on the IOS router first. To remove the global WCCP configuration, use the following no ip wccp global configuration commands:
Router(config)# no ip wccp 61
Router(config)# no ip wccp 62
Step 2 For large WCCP farms (greater than 15), increase the buffer size on the IOS router to the maximum of 65535. This is necessary when WCCP is configured with mask assignment, using a mask with 6 or 7 bits. To set the buffer size to 65535, use the buffers global configuration command:
Router(config)# buffers huge size 65000
Step 3 Perform the WAAS software upgrade on all WAEs using the WAAS Central Manager GUI.
Step 4 Verify that all WAEs have been upgraded in the Devices pane of the WAAS Central Manager GUI. Choose My WAN > Manage Devices to view the software version of each WAE.
Step 5 Re-enable WCCP redirection on the IOS routers. To enable WCCP redirection, use the ip wccp global configuration commands:
Router(config)# ip wccp 61
Router(config)# ip wccp 62
Upgrading from a Prerelease Version to Version 4.1.3x
To upgrade from WAAS prerelease software to version 4.1.3x, you must perform the following tasks to ensure a successful upgrade:
•Restore the factory default settings by using the restore factory-default command.
•Perform a fresh install from the rescue CD.
Upgrading from Version 4.0.x or 4.1.1x to 4.1.3x
This section contains the following topics:
•Ensuring a Successful RAID Pair Rebuild
•Managing Passwords after an Upgrade
Requirements and Guidelines
When you upgrade from version 4.0.x or 4.1.1x to version 4.1.3x, observe the following guidelines and requirements:
•To take advantage of new features and bug fixes, we recommend that you upgrade your entire deployment to the latest version.
•If you operate a network with devices that have different software versions, the WAAS Central Manager must be the highest version.
•Upgrading to version 4.1.3x is supported only from version 4.0.13 and later. If you want to upgrade WAAS devices running earlier versions, first upgrade them to version 4.0.13, 4.0.17 or 4.0.19, then to 4.1.3x.
•Upgrade the WAAS Central Manager devices first, and then upgrade the WAE devices. If you have a standby WAAS Central Manager, upgrade it first, before upgrading the primary WAAS Central Manager. After upgrading, restart any active browser connections to the WAAS Central Manager.
•Before upgrading a WAAS Central Manager to version 4.1.3x, make a database backup by using the cms database backup EXEC command. This command creates a backup file in /local1/. In case of any problem during the upgrade, you can restore the database backup that you made before upgrading by using the cms database restore backup-file EXEC command, where backup-file is the one created by the backup command.
•If you upgrade a WAAS Central Manager to 4.1.3b using the Jobs > Software Update page from a 4.0.x WAAS Central Manager, enter 4.1.3.b.6 in the Software Version field.
•After upgrading application accelerator WAEs, verify that the proper licenses are installed by using the show license EXEC command. The Transport license is enabled by default. If WAFS was enabled on the device before the upgrade, then the Enterprise license should be enabled. Configure any additional licenses (Video and Virtual-Blade) as needed by using the license add EXEC command. For more information on licenses, see the "Managing Software Licenses" section on page 9-3 in the Cisco Wide Area Application Services Configuration Guide.
•After upgrading application accelerator WAEs, verify that the proper application accelerators, policies, and classifiers are configured. For more information on configuring accelerators, policies, and classifiers, see Chapter 12, "Configuring Application Acceleration" in the Cisco Wide Area Application Services Configuration Guide.
•WAAS version 4.1.3 introduces the new SSL application definition, which is enabled for monitoring by default. However, if you are upgrading to version 4.1.3 from an earlier version and already have 20 applications enabled for monitoring, the new SSL application will have monitoring disabled because a maximum of 20 monitored applications are allowed. In order to enable monitoring of the SSL application, you must disable monitoring of a different application and then enable monitoring of the SSL application. You can enable and disable monitoring by using the Enable Statistics check box in the Modifying Application page of the WAAS Central Manager (Configure > Acceleration > Applications > Application Name).
If the SSL Bandwidth Optimization chart has no data, then monitoring may be disabled for the SSL application definition. Check that monitoring is enabled for the SSL application.
•WAAS version 4.1.3x supports strong passwords. When you upgrade from version 4.0.17 or an earlier version, which does not support strong passwords, the previous weaker passwords will be retained. For details, see the "Managing Passwords after an Upgrade" section.
•If you are upgrading a WAAS Central Manager from version 4.0.19 or later and have the secure store enabled, you will need to reopen the secure store after the device reloads (and after any reload). From the WAAS Central Manager GUI, choose Admin > Secure Store or use the cms secure-store open EXEC command. For more information on using the secure store, see the "Configuring Secure Store Settings" section on page 9-10 in the Cisco Wide Area Application Services Configuration Guide.
•If you are upgrading a WAE-511 or WAE-611, ensure that the BIOS disk mode is set to Native.
•When upgrading a WAE from version 4.0.19 or earlier to version 4.1.3x, where the default policy configuration was applied from the CLI, after the upgrade, you may see two classifiers for NFS traffic in the WAAS Central Manager and on the WAE device: NFS and NFS-non-wafs. This has no effect on NFS traffic acceleration, which continues to operate as configured.
•If you are upgrading from version 4.0.x to version 4.1.x, the way a wildcard mask is interpreted has changed. Wildcard masks can be specified for a traffic classifier match condition or an ACL rule. In version 4.0.x, a wildcard mask of 255.255.255.255 would (incorrectly) match no IP addresses, but in version 4.1.x, this wildcard mask matches any IP address, as expected.
•The device group and role naming conventions have changed in version 4.1.3. Device group and role names cannot contain characters other than letters, numbers, period, hyphen, underscore, and space. (In version 4.0.x, other characters were allowed.) If you upgrade from version 4.0.x to version 4.1.3x, disallowed characters in device group and role names are retained, but if you try to modify the name, you must follow the new naming conventions.
•The standby interface configuration changed in version 4.1.3. If multiple standby groups are configured before upgrading, only the group with the lowest priority and a valid member interface will remain after the upgrade, and it will become standby interface 1. If the errors option was configured, it will be removed.
•If you have two Central Managers that have secure store enabled and you have switched primary and standby roles between the two Central Managers, before upgrading the Central Managers to version 4.1.3, you must reenter all passwords in the primary Central Manager GUI. The passwords that need to be reentered include user passwords, CIFS file server passwords, and WAFS core passwords. If you do not reenter the passwords, after upgrading to version 4.1.3, the Central Manager will fail to send configuration updates to WAEs and the standby Central Manager until after the passwords are reentered.
•If you have a version 4.1.1x Central Manager where secure store has been initialized but not opened (such as after a reload) and the Central Manager has sent configuration updates containing user account, CIFS core password, preposition, or dynamic share changes to WAEs before the secure store was opened, then before upgrading the Central Manager to version 4.1.3, you must reenter all passwords in the primary Central Manager GUI. The passwords that need to be reentered include user passwords, CIFS file server passwords, and WAFS core passwords. If you do not reenter the passwords, after upgrading to version 4.1.3, the Central Manager will fail to send configuration updates to WAEs and the standby Central Manager until after the passwords are reentered.
•If you have a version 4.1.1x or earlier Central Manager, are using external/remote users that have the admin role, and have edited one or more of these users on the Central Manager, you might encounter caveat CSCsz24694, which causes the Central Manager not to send updates to WAEs after upgrading to version 4.1.3. To work around this caveat, from the Central Manager manually edit the external users (without changing anything) after the upgrade. If you have a large number of external users defined, contact Cisco TAC for a script to run before or after the upgrade. This issue is resolved in version 4.1.3a and later.
•If you are upgrading a standby Central Manager from version 4.1.1c or 4.1.1d to 4.1.3x, and it has been running for more than three months, the upgrade could fail due to a large database size. In this situation, we recommend that you follow these steps:
1. Deregister the standby Central Manager.
2. Upgrade the standby Central Manager.
3. Upgrade the primary Central Manager.
4. Register the standby Central Manager with the primary Central Manager.
Ensuring a Successful RAID Pair Rebuild
RAID pairs will rebuild on the next reboot after you use the restore factory-default command, replace or add a hard disk drive, delete disk partitions, or reinstall WAAS from the booted recovery CD-ROM.
Caution You must ensure that all RAID pairs are done rebuilding before you reboot your WAE device. If you reboot while the device is rebuilding, you risk corrupting the file system.
To view the status of the drives and check if the RAID pairs are in "NORMAL OPERATION" or in "REBUILDING" status, use the show disk details command in EXEC mode. 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 could indicate a problem:
•The device is offline in the Central Manager GUI.
•CMS cannot be loaded.
•Error messages say that the file system is read-only.
•The syslog contains errors such as "Aborting journal on device md2," "Journal commit I/O error," "Journal has aborted," or "ext3_readdir: bad entry in directory."
•Other unusual behaviors occur that are related to disk operations or the inability to perform them.
If you encounter any of these symptoms, reboot the WAE device and wait until the RAID rebuild finishes normally.
Managing Passwords after an Upgrade
WAAS software version 4.1.3x includes a strong password feature for improved security. Versions of the WAAS software previous to 4.0.19 do not have a strong password capability.
Note The following considerations apply to WAAS software version 4.1.3x with the strong password policy enabled. Strong passwords are disabled by default.
When you upgrade from version 4.0.17 or earlier to version 4.1.3x, note the following password considerations:
•Existing passwords from the older version will continue to work in version 4.1.3x.
•Existing passwords will expire after 90 days. Subsequent new passwords must conform to strong password requirements.
•Strong passwords must meet the following requirements:
–The password must be 8 to 31 characters long.
–The password can include both uppercase and lowercase letters (A-Z and a-z), numbers (0-9), and special characters including ~`!@#$%^&*()_+-=[]\{};:,</>.
–The password cannot contain the characters
` " |
(apostrophe, double quote, or pipe) or any control characters.–The password cannot contain all the same characters (for example, 99999).
–The password cannot contain consecutive characters (for example, 12345).
–The password cannot be the same as the username.
Downgrading from Version 4.1.3b to a Previous Version
Note the following guidelines for downgrading:
•Downgrade is supported only to versions 4.1.3a, 4.1.3, 4.1.1d, 4.1.1c, 4.1.1b, 4.1.1a, 4.1.1, 4.0.25, 4.0.23, 4.0.21, 4.0.19, 4.0.17, or 4.0.13.
•When downgrading WAAS devices, first downgrade application accelerator WAEs, then the standby WAAS Central Manager (if you have one), and lastly the primary WAAS Central Manager.
•If you have a standby WAAS Central Manager, it must be registered to the primary WAAS Central Manager before the downgrade.
•If you enable features such as secure storage and strong passwords in version 4.1.3x, you must disable them before you downgrade WAAS to a previous version (4.0.13 or 4.0.17) that does not support them.
•Locked-out user accounts will be reset upon downgrade.
•All preposition directives configured in CIFS accelerator mode must be removed before downgrading to a version prior to 4.1.1. You also must configure legacy mode file services by enabling a core server and configuring a WAFS core cluster, enabling an edge server, and registering file servers with the Central Manager.
•All dynamic shares configured in CIFS accelerator mode must be switched to legacy mode before downgrading to a version prior to 4.1.1, if you want to keep the dynamic shares. To switch a dynamic share to legacy mode, follow these steps:
1. Edit the dynamic share in the Configure > File > Dynamic Shares window and choose a file server in the drop-down list. (File servers must be previously registered in the Configure > File > File Servers window.)
2. Click Submit.
To downgrade the WAAS Central Manager (not required for WAE devices) to version 4.1.3a, 4.1.3, 4.1.1d, 4.1.1c, 4.1.1b, 4.1.1a, 4.1.1, 4.0.25, 4.0.23, 4.0.21, 4.0.19, 4.0.17, or 4.0.13, follow these steps:
Step 1 (Optional) If secure store is enabled, disable it using the cms secure-store clear global configuration command.
(config)# cms secure-store clearStep 2 From the Central Manager CLI, create a database backup by using the cms database backup EXEC command. Move the backup file to a separate device.
CentralManager# cms database backupStep 3 (Optional) If you are downgrading from a fresh install of version 4.1.3x (from the factory or from an installation performed with the WAAS recovery CD), back up the downgrade scripts to an FTP server as follows:
a. Enable FTP on the WAAS Central Manager by using the inetd enable ftp global configuration command.
b. Copy the needed downgrade scripts to the FTP server by using the copy disk EXEC command, as shown in the following example:
CentralManager# copy disk ftp ftp_server_ip remote_dir WAAS_Downgrade4_1_3_to_4_1_1c downgrade/WAAS_Downgrade4_1_3_to_4_1_1cYou need to copy only the downgrade scripts that you intend to use. See Step 7 for the complete list of downgrade scripts available.
Step 4 Install the downgrade WAAS software image by using the copy ftp install EXEC command.
Step 5 Reload the device.
The database needs to be downgraded before the Central Manager can use it and the CMS process can start. To optionally verify this status, use the show cms info EXEC command. It should respond with a message saying that a database downgrade is required.
Step 6 (Optional) If you performed Step 3, then restore the downgrade script files from the FTP server where you backed them up to the /downgrade directory on the WAAS Central Manager by using the copy ftp EXEC command as follows:
CentralManager# copy ftp disk ftp_server_ip remote_dir WAAS_Downgrade4_1_3_to_4_1_1c downgrade/WAAS_Downgrade4_1_3_to_4_1_1cStep 7 Downgrade the database by using the appropriate cms database downgrade script EXEC command.
CentralManager# cms database downgrade script downgrade/WAAS_Downgrade4_1_3_to_4_1_1cThere are separate scripts depending on what version you are downgrading to:
Note If you are downgrading from version 4.1.3b to version 4.1.3a or 4.1.3, no script is necessary. However, you must still execute the cms database downgrade command.
•WAAS_Downgrade4_1_3_to_4_0_13
•WAAS_Downgrade4_1_3_to_4_0_17
•WAAS_Downgrade4_1_3_to_4_0_19
•WAAS_Downgrade4_1_3_to_4_0_21
•WAAS_Downgrade4_1_3_to_4_0_23 (also use this script when downgrading to 4.0.25)
•WAAS_Downgrade4_1_3_to_4_1_1
•WAAS_Downgrade4_1_3_to_4_1_1a
•WAAS_Downgrade4_1_3_to_4_1_1b
•WAAS_Downgrade4_1_3_to_4_1_1c
•WAAS_Downgrade4_1_3_to_4_1_1d
Step 8 Enable the CMS service by using the cms enable global configuration command.
config(config)# cms enable
Downgrading the database may trigger full updates for registered devices. In the Central Manager GUI, ensure that all previously operational devices come online.
Cisco WAE and WAVE Appliance Boot Process
To monitor the boot process on Cisco WAE and WAVE appliances, connect to the serial console port on the appliance as directed in the Hardware Installation Guide.
Cisco WAE and WAVE appliances have video connectors that should not be used in normal operation. The video output is for troubleshooting purposes only during BIOS boot and stops displaying output as soon as the serial port becomes active.
Cisco WAE-674, WAE-7341, and WAE-7371 RAID Controller Firmware Upgrade
Under rare circumstances, the RAID controller firmware used in the WAE-674, WAE-7341, and WAE-7371 appliances can cause the disk storage subsystem to go offline and the affected devices to stop optimizing connections. The symptoms are as follows:
•Syslog output contains several instances of the following message:
"WAAS-SYS-3-900000: sd 0:0:0:0: rejecting I/O to offline device."•A sysreport and running-config cannot be generated and copied to /local/local1.
Both of the above symptoms are an indication of the file system becoming read-only during traffic flow.
•An increasing number of pending connections appear in the output of the show statistics tfo command, indicating that new connections cannot be optimized. You can use this command to proactively check the functionality of the system.
The solution is to upgrade to the 5.2-0 (15427) RAID Controller Firmware, which can be found on cisco.com at the Wide Area Application Service (WAAS) Firmware download page (registered customers only). The firmware binary image is named L4_15427_FIRMWARE.bin.
Instructions on how to apply the firmware update are posted on cisco.com together with the firmware and are in the file named L4_15427_FIRMWARE.zip.
Cisco WAE-612 Hard Disk Drive Replacement Notification
This notice applies to the WAE-612 and all WAAS versions previous to 4.0.19 that support the hot-swap replacement of drives while the appliance is running.
A problem may occur while replacing the drives while the unit is running. Occasionally after a drive hot-swap procedure, the WAE-612 may stop operating and require a reboot.
To avoid this problem, upgrade your WAAS software to version 4.0.19 or later.
This notice does not apply to the WAE-674, WAE-7341, or WAE-7371.
Operating Considerations
This section includes operating considerations that apply to software version 4.1.3x:
•Configuring Router Buffer Size
•Virtual Blade Configuration From File
•Device Group Default Settings
•Using Autoregistration with Port-Channel Interfaces
•WAFS Support of FAT32 File Servers
Interoperability
This section discusses operating considerations when operating a WAAS network that mixes version 4.1.3x devices with devices running earlier software versions.
•WAAS version 4.1.3x does not support running in a mixed version WAAS network where any WAAS device is running a software version lower than 4.0.13. If you have any WAAS devices running version 4.0.11 or earlier, you must first upgrade them to version 4.0.13 (or a later version), before you install version 4.1.3x. You should first upgrade any WAEs to version 4.0.13 (or a later version) and then upgrade any WAAS Central Managers to version 4.0.13 (or a later version).
•In a mixed version WAAS network with version 4.1.3x, the WAAS Central Manager must be running the highest version of the WAAS software.
•When a WAAS Central Manager is upgraded to version 4.1.3x and it is managing a 4.0.x device with legacy mode WAFS enabled that is not upgraded, the device may appear to have both legacy mode WAFS and the transparent CIFS accelerator enabled, because the Central Manager enables it by default. Disable the transparent CIFS accelerator if you want to continue to use legacy mode for WAFS.
Configuring Router Buffer Size
Under certain conditions, you may need to increase the IOS buffer size from the default of 18,000 bytes when using mask assignment for load balancing in a WCCP service farm that contains more than 15 WAEs.
You will need to change the buffer size if you see messages similar to the following appearing on the router console:
%SYS-2-GETBUF: Bad getbuffer, bytes= <size> -Process= "WCCP V2 Protocol", ipl= 0, pid= <pid>
These log messages indicate that the messages being generated are larger than the maximum configured buffer size in IOS. This can occur if a large mask assignment is used in combination with a large number of WAEs in the service group.
The configured IOS buffer size must be larger than the number of bytes reported in the log messages. The maximum configurable IOS buffer size is 65,000 bytes, which you can set with the following IOS command on the routers:
Router(config)# buffers huge size 65000To avoid the need to increase the router buffer size, the number of mask bits set in the WAE WCCP mask assignment configuration can be reduced or the number of WAEs in the farm can be limited. For example, with a default buffer size of 18,000 on the router, a WCCP service group can support 8 WAEs with a mask of 0x7F (7 bits) or 32 WAEs with a mask of 0x7 (3 bits).
Virtual Blade Configuration From File
If you copy the device configuration to the running-config from a file (for example, with the copy startup-config running-config command), configuration changes from the file are applied to the device without confirmation. If a virtual blade disk configuration exists in the configuration file and it is different from the actual device configuration, the device virtual blade disk configuration is removed and replaced with the disk configuration from the file. You will lose all data on the virtual blade disks.
Device Group Default Settings
When you create a new device group in WAAS version 4.1.3x, the Configure > Acceleration > DSCP Marking page is automatically configured for the group, with the default DSCP marking value of copy.
Using Autoregistration with Port-Channel Interfaces
Do not enable the auto-register global configuration command when both interfaces are configured as port-channel interfaces.
WAFS Support of FAT32 File Servers
The WAFS feature does not support file servers that use the FAT32 file system. You can use the policy engine rules to exclude from CIFS optimization any file servers that use the FAT32 file system.
Software Version 4.1.3b Resolved and Open Caveats
The following sections contain the resolved and open caveats in software version 4.1.3b:
•Software Version 4.1.3b Resolved Caveats
•Software Version 4.1.3b Open Caveats
Software Version 4.1.3b Resolved Caveats
The following caveats were resolved in software version 4.1.3b.
Software Version 4.1.3b Open Caveats
The following open caveats apply to software version 4.1.3b.
The additional open caveats for software version 4.1.3b are the same as those for software version 4.1.3a, with the exception of CSCsz86878 and CSCsz84284, which are resolved for 4.1.3b. For details, see the "Software Version 4.1.3a Open Caveats" section.
Software Version 4.1.3a Resolved and Open Caveats
The following sections contain the resolved and open caveats in software version 4.1.3a:
•Software Version 4.1.3a Resolved Caveats
•Software Version 4.1.3a Open Caveats
Software Version 4.1.3a Resolved Caveats
The following caveats were resolved in software version 4.1.3a.
Software Version 4.1.3a Open Caveats
The following open caveats apply to software version 4.1.3a.
The additional open caveats for software version 4.1.3a are the same as those for software version 4.1.3, with the exception of CSCsw36112 and CSCsz24694, which are resolved for 4.1.3a. For details, see the "Software Version 4.1.3 Open Caveats" section.
Software Version 4.1.3 Resolved Caveats, Open Caveats, and Command Changes
The following sections contain the resolved caveats, open caveats, and command changes in software version 4.1.3:
•Software Version 4.1.3 Resolved Caveats
•Software Version 4.1.3 Open Caveats
•Software Version 4.1.3 Command Changes
Software Version 4.1.3 Resolved Caveats
The following caveats were resolved in software version 4.1.3.
Software Version 4.1.3 Open Caveats
The following open caveats apply to software version 4.1.3.
Software Version 4.1.3 Command Changes
This section lists the new, modified, and removed commands in WAAS software version 4.1.3.
Table 1 lists the new commands and options that have been added in WAAS software version 4.1.3.
Table 1 CLI Commands Added in Version 4.1.3
Mode Command and SyntaxEXEC
crypto delete
crypto export
crypto generate
crypto import
crypto pki
show statistics connection auto-discovery
Global configuration
accelerator ssl
crypto pki
crypto ssl
PKI certificate authority configuration1
ca-certificate
description
revocation-check
PKI global settings configuration2
ocsp
revocation-check
Virtual blade configuration3
vnc
1 PKI certificate authority configuration commands are used to configure public key infrastructure (PKI) encryption certificate authorities.
2 PKI global settings configuration commands are used to configure OCSP and revocation checking.
3 Virtual blade configuration commands are used to configure virtual blades on platforms that support virtual blades.
Table 2 lists existing commands that have been modified in WAAS version 4.1.3.
Table 3 lists commands that have been removed in WAAS version 4.1.3.
Table 3 CLI Commands Removed in Version 4.1.3
Mode CommandEXEC
show standby (use show interface standby 1)
Table 4 lists commands whose names have changed in WAAS version 4.1.3.
Table 4 CLI Commands with Changed Names in Version 4.1.3
Mode Old Command Name New Command NameEXEC
show statistics connection all
show statistics connection
Software Version 4.1.3 Monitoring API Changes
This section lists the modified and new Monitoring APIs in WAAS software version 4.1.3.
getMonitoredApplications
The input parameter has been removed and the output parameter returns a list of MonitoredApps objects instead of a list of application names. The MonitoredApps object includes the application name and the monitoring status. (See Table 5.)
Note If you are using WAAS version 4.1.1 getMonitoredApplications API, you need to modify the client program before using WAAS version 4.1.3 Monitoring API.
Table 6 shows the getMonitoredApplications API change between WAAS versions 4.1.1 and 4.1.3.
Table 6 getMonitoredApplications change
Web Service API Name WAAS 4.1.1 WAAS 4.1.3 Input Output Input OutputTrafficStats
getMonitoredApplications
name:string
String
MonitoredApps
CIFSStats
The output objects of CIFSStats web service APIs have changed. (See Table 7.)
Note If you are using WAAS version 4.1.1 CIFSStats APIs, you need to modify the client program before using WAAS version 4.1.3 Monitoring API because the return objects have changed.
Table 8 shows the CIFSStats API output objects changes between WAAS versions 4.1.1 and 4.1.3.
New APIs
Table 9 lists the new APIs in WAAS version 4.1.3:
WAAS Documentation Set
In addition to this document, the WAAS documentation set includes the following publications:
•Cisco Wide Area Application Services Quick Configuration Guide
•Cisco Wide Area Application Services Configuration Guide
•Cisco Wide Area Application Services Command Reference
•Cisco Wide Area Application Services API Reference
•Cisco WAAS Installation and Configuration Guide for Windows on a Virtual Blade
•Cisco Wide Area Application Engine 511 and 611 Hardware Installation Guide
•Cisco Wide Area Application Engine 512 and 612 Hardware Installation Guide
•Cisco Wide Area Application Engine 7326 Hardware Installation Guide
•Cisco Wide Area Application Engine 7341, 7371, and 674 Hardware Installation Guide
•Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide
•Cisco Wide Area Virtualization Engine 574 Hardware Installation Guide
•Cisco Network Modules Hardware Installation Guide
•Configuring Cisco WAAS Network Modules for Cisco Access Routers
•Installing the Cisco WAE Inline Network Adapter
•Regulatory Compliance and Safety Information for the Cisco Content Networking Product Series
•Regulatory Compliance and Safety Information for the Cisco Content Wide Area Virtualization Engines
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.
This document is to be used in conjunction with the documents listed in the "WAAS Documentation Set" section.
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Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
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