VOLTHA 2.8 Release Notes¶
VOLTHA-2.8 is the first Long Term Support (LTS) release for VOLTHA. Together with ONOS 2.5 (which is already LTS), the LTS designation means that testing and bug-fixes will be guaranteed for 18 months on the released version of the codebase. The release focused on storage with persistence at scale, platform hardening, tcont type selection, Multi-Uni support and introduced several PON level metrics. All these elements provide confidence to the operators to expand their production deployments.
The Long Term Support process is as follows:
LTS releases 18 months apart.
Each LTS release will be supported for 18 months with bug fixes and testing
6 month release cycles following LTS release
Two interim releases every 6 months between LTS versions.
VOLTHA 2.8 first and foremost meets the scale requirements (1024 ONUS per stack, 10240 on 10 stack across the same infrastructure) of the operator’s with persistence enabled on ETCD 6.13.19 version, deployed with the BITNAMI helm charts. Such result was achieved thanks to the combination of several improvements across the whole stack. The Technology profile is now mostly templated, the openolt adapter makes heavier use of the read-through cache, the rw-core does not store the flows for each device. A ETCD connection pool has been introduced in voltha-lib-go to ensure that the system is not choking by using 1 connection per service. With all these improvements on NVMe disks all 3 workflows provision 1024 subscribers in around 2 minutes.
During the VOLTHA 2.8 release ONOS was moved from the 2.2 release which is shortly approaching EOL (end of life) to ONOS 2.5, guaranteeing that for the extent of the 2.8 release also ONOS will be supported.
To support more customers in the field multi-UNI capability has been introduced across the VOLTHA stack and ONOS apps. The system is now capable of delivering configuration and thus traffic to subscribers connected to all UNI ports of each ONU, up to 16 per ONU.
Further subscriber configuration has been introduced with the support for the IETF model for bandwidth profiles and the capability to provision and choose all the 5 TCONT types. These elements allow operator’s a wider variety of subscriber configurations
To comply with operator requirements the ONU software upgrade APIs have been changed to support retrieval of images present on the ONU and to separate the download, activate, commit, requests, allowing the operator more control over the actions performed over the ONU. Furthermore hardening of the functionality has been done, achieving a much faster ONU update time.
Further insight into live deployed networks has been introduced thanks to more Performance Measurements that can be retrieved from the ONU and the OLT. In particular VOLTHA 2.8 implements ANi-G and ANi-G test messages with tx/rx power readout, ONUi-PON, GEMj and UNI Ethernet layer, FEC and GEM history and several other counters.
Finally the release provided bug fixes across the stack, especially concerning device/port handling, such as, PON enable/disable, OLT and ONU reboot and ONU software upgrade. Performance related improvements were included in ONOS apps. VOLTHA 2.8 hardened several operations, one worth noting is the omci message retry on failure in openonu adapter
On the testing front VOLTHA 2.8 expanded the suite for TT up to 20 tests, with failure and error scenarios, including several multi TCONT testing as per TT workflow. Testing has included also a full suite for the Performance Measurements functionality, especially ANI-G. Furthermore we included support for multi-uni in the robot suite and expanded the soak testing with DT workflow.
Along with VOLTHA 2.8, the Device Management Brigade also released a new version (1.0.0) of the interface, which has been implemented on BBSIM and has initial robot test cases. This DMI release introduces specific components values, BITS protocol, gRPC streams for events and metrics that can be use in place of kafka, more events and a heart beat check.
Features & Improvements¶
ETCD 6.13.19 with persistence enabled
Templated technology profile
Removal of flows and meters storage in the rw-core.
Openolt adapter read-through cache
ETCD connection pool in voltha-lib-go
Optimization of several stored attributes, removing duplicate items
Automatic compaction and defragmentation
Move to ONOS 2.5 LTS
Expanded ONU software upgrade capability
Retrieval of image specifics via OMCI of the images from the device
Separation of download/activate/commit APIs
Multi Uni per ONU support across the whole stack, ONOS apps and BBSIM
IETF bandwidth profile definition support
5 Tcont type configuration and selection
Collection of more performance measurements and counters
ANi-G and ANi-G test message with te/rs power support
ONUi-PON and ONUi-GEMj
ONU-UNI Ethernet layer
GEM Port History
Transceiver data via DMI
OMCI channel message send/receive failure handling with retry in openonu adapter
Retrieve of Performance Metrics
Distroless and non root docker images for production deployment security
Deprecation of kind-voltha in favour of voltha-stack and voltha-infra helm charts.
Voltha-2.8 tests are available on Jenkins.
Full Performance Monitoring Attributes test suite
Multi Uni per ONU tests
OMCI requests failures chaos monkey
Expanded TT tests from 5 to 19
Open-olt, Open-onu, Rw-core, Of-agent Restart
Delete/Re-add (reprovisioning) Subscribers
ONU and OLT Physical and Soft Reboot
Various Multi-Tcont scenarios
Radisys 3200G GPON OLT DT and ATT tests
Expanded and automated soak testing with DT workflow.
OLT soft reboot for DT
Updated ONU Software Upgrade Tests based on new Voltctl commands
Updated documentation with new ONU software update and software update is published on https://docs.voltha.org
[FIXED] Same TCONT for two uni add/delete subscribers does not work. [VOL-4215]
[FIXED] EAPOL flow meter mismatch at scale for ATT job. [VOL-4235]
Thanks to the Continuous Certification program at ONF we can also ensure that the following ONF member products are compatible with the VOLTHA 2.8 release:
Edgecore ASGVolt64 GPON OLT
Edgecore ASXVolt16 XGSGPON OLT
Radisys 3200G GPON OLT
Radisys 1600G GPON OLT
Radisys 1600X GPON OLT
Adtran 6320 GPON OLT
Sercomm FG1000 GPON ONU
Sercomm Glasfaser GPON ONU
Edgecore 6712-32X Switch
Edgecore 7712-32X Switch
In particular the 2.8 release added the Radisys 3200G GPON OLT.
A full list of stories and bugs completed can be found under the VOLTHA 2.8 release page in Jira.
Component Versions in VOLTHA 2.8 release¶
ONOS and Atomix:¶
ONOS 2.5 LTS:
Helm Charts (voltha-helm-charts) -
openolt agent -
Helm Chart Versions:¶
This section refers to the macro charts to deploy the required infrastructure and a (or many) VOLTHA stacks:
Broadcom abstraction layer (BAL) version:
Openolt Agent packages:¶
EdgeCore Available from EdgeCore site:
Out of band management
ONL version (both GPON and XGSPON) ONL-onl-4.14_ONL-OS8_2020-04-14.1946-72b95a7_AMD64_INSTALLED_INSTALLER available at /ASXvOLT16/OpenOLT_Agent/From_ONF_Distribution
for ASFVOLT16 available, from /ASFvOLT16/OpenOLT_Agent/From_ONF_Distribution/voltha-2.8/OUT-OF-BAND.:
openolt_asfvolt16-3.4.9-e2a9597f3d690fe3a0ea0df244571dfc9e8c2833-100G-NNI.debif 100G NNI port is used
openolt_asfvolt16-3.4.9-e2a9597f3d690fe3a0ea0df244571dfc9e8c2833-40G-NNI.debif 40G NNI port is used.
for ASGVOLT64 available at /ASGvOLT64/OpenOLT_Agent/From_ONF_Distribution/voltha-2.8/OUT-OF-BAND:
openolt_asgvolt64-3.4.9-e2a9597f3d690fe3a0ea0df244571dfc9e8c2833-100G-NNI.debif 100G NNI port is used
openolt_asgvolt64-3.4.9-e2a9597f3d690fe3a0ea0df244571dfc9e8c2833-40G-NNI.debif 40G NNI port is used.
In band management
use ONL image, comprising of Bal and openolt (available from edgecore site) for ASFVOLT16 ONL-onl-4.14_ONL-OS8_2021-08-05.0514-72b95a7_AMD64_INSTALLED_INSTALLER-40G-NNI, available at /ASXvOLT16/OpenOLT_Agent/From_ONF_Distribution/voltha-2.8/IN-BAND. Note that debian package available as part of the ONL support 40G NNI by default.
Get access credentials for https://edgecore.quickconnect.to and then login and navigate to File_Station -> EdgecoreNAS, and then the folder /ASXvOLT16/OpenOLT_Agent/From_ONF_Distribution/ and pick the version above
For 3200G 40G NNI .Deb Version:
To get the debian package for Radisys 3200G OLT please write to Cameron Lundberg