Ixia Software Release Notes
UHD 1.2
Build Number: 1.2.42 (November, 2020)
Welcome to the UHD 1.2 release. This is the third software release for the Ixia UHD100T32, QSFP28 Ultra-HighDensity 32-Port Test System.
The UHD application is a purpose built web application to run Layer 2 to 3 testing on a UHD platform.
It lets users configure control plane using protocol emulation, build data plane traffic and also run RFC benchmark quick tests.
UHD100T32 is a self contained system to which users can connect via a web browser to run tests as well as perform administrative tasks like license and chassis management.
Please see sections below for application and hardware compatibility, new features, resolved issues, and known issues.
Application Compatibility
The following applications are compatible with UHD1.2:
| Application |
Version |
| UHD Application |
1.2 |
| KCOS |
1.2 |
| Wireshark |
1.8 |
| Licensing |
5.20 |
| REST PY |
1.0 |
The following web browsers are compatible with UHD1.2:
| Web Browser |
Version |
| Google Chrome |
87 or newer |
| Mozilla Firefox |
83 or newer |
| Microsoft Internet Explorer |
11 or newer |
| Microsoft Edge |
44 or newer |
| Apple Safari |
14 or newer |
New features and bug fixes are provided through updates to the KCOS operating system and UHD application running on the UHD100T32.
For the list of compatible components for the UHD100T32, use the on-line compatibility tool.
For more information on compatibility, contact us at https://www.ixiacom.com/contact/info.
A UHD100T32 chassis must have appropriate licenses installed. The UHD100T32 chassis ships from the factory with the no licenses installed.
Installing a License:
An email should have been received with your Activation Codes as per the option selected while purchasing. If it has not been received yet, please contact your Ixia Sales Representative or Ixia Customer Support.
To add new license login to the UHD web interface and navigate to --> Top right Wheel menu -> Administration --> License Manager -> Activate License.
On the next dialog enter all activation codes for the unit. Offline license registration is also available.
UHD100T32 has all the software preinstalled on it. A supported web browser is required to access UHD100T32 web application.
Update UHD100T32 Software
1. Download latest UHD100T32 software update packages (tarballs) from UHD Software update page.
2. Copy packages to a USB flash drive and plug the USB flash drive to a USB port on the UHD100T32 front panel. The USB disk partitions are visible under /media/auto/ directory in admin shell.
OR
2. Copy packages over SCP/SFTP.
3. Run the following command
kcos deployment offline-install kcos-deployment-service-[version].tar
4. Reboot the UHD100T32 with the following command
kcos system reboot
5. Once system is up complete installation by running the below command:
kcos deployment offline-install uhd-[version]-system-[version].tar
6. Once updated, reboot the system with command:
kcos system reboot
7. To verify update is successful, check software versions from admin shell with command:
kcos deployment packages show
For more detailed steps follow the link in additional documentation.
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Ixia Headquarters
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Support
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Please refer to our website at UHD Software update page.
A login and password is required to enter this section of the web site. If you do not have the username and password, please forward your request to support@ixiacom.com.
Safety Notice Regarding UHD100T32 Chassis
WARNING: In order to prevent accidental injury to personnel, do not leave the QSFP28 transceiver cages uncovered on the UHD100T32 chassis. When transceivers
are not installed, port end caps must be used. The metal edge of the transceiver cage is SHARP. To avoid injury, ALWAYS keep the open transceiver cage covered with the end cap.
UHD 1.2 features
| Infrastructure |
| UHD100T32 now supports upto 32 sessions of control plane (BGP) and running traffic over them. User may have to switch to a high scale mode from the REST API Browser using below API.
"setChassisModeSwitch Mode(default/highRoute)" |
| LACP/LAG |
| LACP protocol is now supported on UHD100T32. Users can configure LAG to load balance traffic across LAG member ports. |
| Statistics |
| Users can now track based on egress fields in packet headers. |
Administration
| Bug Number |
Notes |
| 1550874 |
In previous releases IPv6 management was not supported. Specifically IPv6 administration or application usage was not supported. With UHD 1.2, this is now supported. Users can configure an IPv6 address on the management interface, login and transfer files via this IPv6 address, and access the UHD web application through a browser using this IPv6 address.
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| 1550885 |
The admin CLI password will persist on system reboot. (previously it was resetting to factory default passwords)
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Statistics
| Bug Number |
Notes |
| 1550877 |
An issue where Intermittently, user defined statistics from the drill down action will not be created or will not show proper statistics has been resolved.
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| 1550879 |
In previous releases, the Rx rate was typically greater than the Tx rate when using IMIX traffic patterns. This has been resolved in UHD release 1.2. Rx rates are now consistent with Tx rates when using IMIX traffic patterns.
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Traffic
| Bug Number |
Notes |
| 1542875 |
In previous releases, ports could not sustain line rate for 66 byte frames with a frame encapsulation of Ethernet + VLAN + IPv4. Specifically, rates would be in the range of 90%-93% of line rate. With UHD 1.2, this configuration will run at 100% line rate.
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API
| Bug Number |
Notes |
| 1550889 |
In rare occasions while running automation via restpy you may observe "Error 405 HTTP method POST is not supported by this URL"
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| 1552999 |
RestPy is not able to fetch 'BGP+ Peer Per Port' Statistics. Workaround is to fetch it as 'BGP\+ Peer Per Port'
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CLI
| Bug Number |
Notes |
| 1550741 |
After setting a new static IP on management interface it is recommended to issue a reboot command.
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High Route Scale
| Bug Number |
Notes |
| 1553006 |
Traffic state of ports stays running when ports are disconnected during chassis mode switch. Workaround is to refresh browser to get the right port state.
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LAG/LACP
| Bug Number |
Notes |
| 1548933 |
LAG color in UI incorrectly turns red indicating the LAG is down when one member port is down. LAG is still up in this case.
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| 1549513 |
Sometime LAG doesn't come up though Lacp comes up fine. As the side effect of this issue some PoLACP will not come up. Workaround is to close the session and start the test will a new session
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| 1549639 |
Loss may be seen when a a LAG failover is done and the resultant LAG after failover is at max capacity.
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| 1551897 |
Static LAG is not supported in this release. Though it is showing in the GUI.
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| 1552714 |
For running traffic on top of LAG it is recommended to turn on traffic tracking. Without tracking control plane will become unstable.
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| 1553662 |
Required minimum rate for lag = minimum supported rate * number of ports in that lag.
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Statistics
| Bug Number |
Notes |
| 1550876 |
In case of no loss scenario, traffic stats loss column may show blank. Users can get 0 loss stats on stopping the traffic.
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| 1553823 |
Drilldown 'per device group' from 'per lag member port learned info' view does not work properly.
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Traffic
| Bug Number |
Notes |
| 1551762 |
Transmit rates may be off by greater than 0.1% in certain scenarios.
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| 1554044 |
In certain IMIX scenarios, the distribution cannot be precisely encoded. The bit rate for the traffic will be correct however the frame rate will be off by more than 0.1%. The workaround for this situation is to breakout the individual frame sizes into separate traffic items with the desired packets per second rate.
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UI
| Bug Number |
Notes |
| 1552705 |
Sometime the scenario editor does not update the color of the protocol stacks. Workaround is to refresh the browser or move between other pages.
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