Release Notes for Cisco Videoscape Distribution
Suite Transparent Caching Release 5.7.3
February 2016
These release notes describe the new features and caveats of the Cisco Videoscape Distribution Suite
Transparent Caching Release 5.7.3.
For a list of open caveats that are pertinent to this release, see the “Caveats” section.
Contents
•
Introduction
•
New Features and Enhancements
•
Product Overview
•
Product Overview
•
System Requirements
•
Caveats
•
Related Documentation
Introduction
The Cisco Videoscape Distribution Suite Transparent Caching (VDS TC) solution is focused on reducing
costs and improving quality of user experience in delivering unmanaged Internet-based content,
including Internet video, file sharing, software distribution, mobile application downloads, and web
browsing. VDS TC integrates highly scalable caching software with high-performance Cisco Unified
Computing System™ (UCS) servers and blades, Cisco® switches, and SAN storage. The VDS TC
solution, combined with other Videoscape products like Cisco Videoscape Distribution Suite for Internet
Streaming (VDS IS), provides a complete platform for optimizing managed and unmanaged content
delivery.
Cisco Systems, Inc.
www.cisco.com
New Features and Enhancements
For unmanaged content, Cisco VDS TC empowers service providers to alleviate network congestion due
to Internet video and other high-bandwidth applications in their networks, while meeting subscribers'
demand for the content and improved quality of experience. VDS TC is typically deployed in
conjunction with a network element, such as a router, which is responsible for classification and
redirection of traffic to the cache, based on Layer 4 and Layer 7 criteria.
New Features and Enhancements
The following new features and enhancements are available in Release 5.7.3 of Cisco Video Videoscape
Distribution Suite Transparent Caching (VDS TC):
•
BitTorrent uTP: VDS-TC 5.7.3 introduced support for caching the BitTorrent uTP P2P protocol.
•
iSCSI disconnect alarm: VDS-TC 5.7.3 generates a logging message when an iSCSI cable is
disconnected from a storage device. For example:
Feb 4 09:46:09 ce-5 storage warning : ping timeout from ce-5 to storage iscsi link
10.11.14.110
A logging message is also generated when the iSCSI cable is reconnected. For example:
Feb 4 10:02:11 ce-5 storage warning : ping from ce-5 to storage iscsi link
10.11.14.110 is OK
Product Overview
Cisco VDS TC is multi-protocol, supporting HTTP for download, progressive download, and adaptive
bit rate (ABR) streaming, as well as multiple peer-to-peer (P2P) protocols. The solution automatically
adapts to content popularity once installed, and is access-network-agnostic. The system automatically
adjusts to traffic mix changes during the day and week.
One of the benefits of Cisco VDS TC is that it can enable service providers to offload a significant
amount of content traffic by serving the popular content from a locally cached copy, within the access
network. As a result, service providers can experience a rapid return on investment (ROI) by reducing
their operational network costs, and defer capital investments into their network infrastructures.
The other main benefit of Cisco VDS TC is the improvement of the quality of experience (QoE) for the
subscribers of the service providers. By serving popular content from locally deployed cache, the content
is better positioned to provide a better user experience than if the content were served from the original
content server.
The Cisco VDS TC solution can enable service providers to:
•
Lower core and edge network bandwidth
•
Manage infrastructure costs for over-the-top (OTT) content in a cost-efficient manner
•
Improve subscriber QoE for popular content
•
Deploy OTT caching without impacting the client or origin CDN, or application behavior
System Requirements
Cisco VDS TC is optimized for use on the Cisco Unified Computing Systems (Cisco UCS), such as the
Cisco UCS C220 Rack Server or the Cisco UCS B200 Blade Server.
Release Notes for Cisco Videoscape Distribution Suite Transparent Caching Release 5.7.3
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Caveats
Product
Hardware
VDS TC Cache Server
Cisco UCS B200 Blade Server or Cisco UCS C220 Rack
Mount Server with the following:
•
For Cisco UCS C220 Rack Mount Server, firmware
version 2.0(6f)
•
For Cisco UCS B200 Blade Server, firmware 2.2.5.b
VDS TC Cache Manager
Cisco C220 Rack Mount Server or the Cisco C240 Rack
Mount Server with firmware version 2.0(6f)
VDS TC SAN Storage:
NetApp E2724:
•
•
NetApp E2724
•
Controller BIOS version: 08.20.05.00
or
•
Storage Manager 11.20.0A
(SMIA-LINUXX64-11.20.0A00.0015.bin)
IBM DS3524
IBM DS3524:
Note
•
Controller BIOS version: 07.86.46.00
•
Controller Image file:
ibm_fw_ds3k_07864600_anyos_anycpu.zip
•
HDD BIOS version: 4.18
•
HDD Image file:
ibm_fw_ds3khdd_4.18_anyos_anycpu.zip
•
Storage Manager 10.86
(SM10.86_Linux_64bit_x86-64_SMIA-10.86.x5.43
.tgz)
VDS TC Integrated Cache Server,
Manager, and storage for a VDS-TC-1S
installation
Cisco UCS C240 Rack Mount Server with firmware
version 2.0(6f)
Java version
Version 1.8.0_66 or later
If you are using Cisco VDS TC Analytics in your environment, VDS TC Release 5.7.3 requires VDS TC
Analytics Release 2.5.0.
Caveats
Open Caveats in Cisco Videoscape Distribution Suite Transparent Caching
Release 5.7.3
•
CSCux76307: BitTorrent: graph displays incorrect speed
– Symptom: BitTorrent: graph displays incorrect speed.
– Workaround: There is no workaround for this caveat.
Release Notes for Cisco Videoscape Distribution Suite Transparent Caching Release 5.7.3
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Caveats
•
CSCuy01530: SKB Known Memory Leak
– Symptom: CE pang crashed with a corresponding core dump, which seems to be related to out
of memory (src/tcmalloc.cc).
– Workaround: There is no workaround for this caveat.
•
CSCut30764: Memory leak-the memory usage in 16S test bed keeps raising
– Symptom: Memory leak-the memory usage in 16S test bed keeps raising.
– Workaround: There is no workaround for this caveat.
•
CSCut71156: Cache list display/Cache list short/Cache summary does not show anything
– Symptom: Cache list display/Cache list short/Cache summary does not show anything.
– Workaround: There is no workaround for this caveat.
Resolved Caveats in Cisco Videoscape Distribution Suite Transparent Caching
Release 5.7.3
This section contains the resolved caveats in Cisco VDS TC Release 5.7.3. Not all resolved issues are
mentioned here. The following list highlights resolved caveats associated with customer deployment
scenarios:
•
CSCup76843: Servers restarts because it suffered multiple spread network disconnections
The grid suffered multiple spread network disconnections. As a result, the internal reconnect
mechanism was activated, recovering most of the servers. The reconnect mechanism supports a
single, sporadic spread network disconnection, and not a multiple disconnection scenario. As a
result, not all servers recovered from the disconnections, and restarted, either by the SW watch dog,
or by the application itself.
•
CSCus06947: Some storage devices cannot be mounted automatically after a N7K reload
After N7K reload, one or several storages had all their volumes unmounted.
•
CSCut34038: VDSTC Manager showing error message "license forwarding exceeded"
The VDSTC Manager are showing license forwarding exceeded error messages
•
CSCuv61067: BitTorrent cache-out issue
BitTorrent cache-out issue : BT traffic reduced after upgrade
•
CSCuv03203: Cisco apply conf causes memory to increase by 3%
Cisco apply conf causes memory to increase by 3%
•
CSCux02962: After ISO installed on manager, no KVM to CEs
javaws /tmp/'viewer.jnlp(bmc-2@0@1446630372852)'
Xlib: extension "RANDR" missing on display ":1.0".
Segmentation fault
•
CSCux80264: NTP: cannot synchronize to external NTP server
NTP: cannot synchronize to external NTP server
•
CSCuu95981: Soft lockup - CPU#9 stuck for 6s! presented in logs
Release Notes for Cisco Videoscape Distribution Suite Transparent Caching Release 5.7.3
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Related Documentation
Soft lockup - CPU#9 stuck for 6s! generated by OS Kernel and presented in VDS-TC logs due to
false detection of management disconnection detection. The application is not effected and not
restarted.
Related Documentation
Software Documents
Refer to the following documents for additional information about VDS TC 5.7.3
Document
URL
Cisco Videoscape Distribution Suite
Transparent Caching Software Integrated
Appliance Installation Guide
http://www.cisco.com/c/dam/en/us/td/docs/video/vid
eoscape/distribution_suite/vds/v5_7_3/VDS-TC_5_7
_3_1s_swInstallGuide.pdf
Cisco Videoscape Distribution Suite
Transparent Caching Software C-Series
Cluster Installation Guide
http://www.cisco.com/c/dam/en/us/td/docs/video/vid
eoscape/distribution_suite/vds/v5_7_3/VDS-TC_5_7
_3_CSeries_swInstallGuide.pdf
Cisco Videoscape Distribution Suite
Transparent Caching Software Blade Server
Cluster Installation Guide
http://www.cisco.com/c/dam/en/us/td/docs/video/vid
eoscape/distribution_suite/vds/v5_7_3/VDS-TC_5_7
_3_BladeSrvr_swInstallGuide.pdf
Cisco Videoscape Distribution Suite
Transparent Caching Software Configuration
Guide
http://www.cisco.com/c/dam/en/us/td/docs/video/vid
eoscape/distribution_suite/vds/v5_7_3/VDS-TC_5_7
_3_software_config_guide.pdf
Cisco Videoscape Distribution Suite
Transparent Caching Application Upgrade
Guide
http://www.cisco.com/c/dam/en/us/td/docs/video/vid
eoscape/distribution_suite/vds/v5_7_3/VDS-TC_5_7
_3_app_upgrade_guide.pdf
Cisco Videoscape Distribution Suite
Transparent Caching Manager User Guide
http://www.cisco.com/c/dam/en/us/td/docs/video/vid
eoscape/distribution_suite/vds/v5_7_3/VDS-TC_5_7
_3_mgr_user_guide.pdf
Cisco UCS C-Series Rack Servers Install and
Upgrade Guides web page
http://www.cisco.com/en/US/products/ps10493/prod
ucts_installation_and_configuration_guides_list.html
Cisco UCS B-Series Blade Servers Install and http://www.cisco.com/c/en/us/support/servers-unifie
Upgrade Guides
d-computing/ucs-b-series-blade-servers/products-ins
tallation-guides-list.html
Cisco UCS B-Series Blade Servers
Configuration Guides web page
http://www.cisco.com/en/US/products/ps10280/prod
ucts_installation_and_configuration_guides_list.html
Cisco UCS 5108 Server Chassis Installation
Guide
http://www.cisco.com/c/en/us/td/docs/unified_comp
uting/ucs/hw/chassis-install-guide/ucs5108_install.ht
ml
The entire VDS TC software documentation suite is available on Cisco.com at:
http://www.cisco.com/c/en/us/support/video/videoscape-distribution-suite-transparent-caching/tsd-pro
ducts-support-series-home.html
Release Notes for Cisco Videoscape Distribution Suite Transparent Caching Release 5.7.3
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Related Documentation
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a
service request, and gathering additional information, see What’s New in Cisco Product Documentation
at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html.
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This document is to be used in conjunction with the documents listed in the “Related Documentation” section.
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© 2016 Cisco Systems, Inc. All rights reserved.
Release Notes for Cisco Videoscape Distribution Suite Transparent Caching Release 5.7.3
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