This service is available as best effort for testing. Be aware when trying this service in your tenancy.
EUMETCast Terrestrial over AMT can serve any user hosted on a cloud, from AWS to the EWC, regardless of native multicast connectivity. The encapsulated data can travel via GEANT network or the commercial internet.
Pre-requisite
Users need to be registered to EO Portal and have the following credentials in order to provision the service in their tenancies:
| parameter | value or where to take it |
|---|---|
| username | from EO portal |
| userkey | from EO portal |
Create security group
Once you enter your tenancy:
- Go to Infrastructure → Network
2. Go to Security Group tab and click the add button:
3. Assign eumetcast-ssh name to the security group and hit save:
4. Click on the new security group to access it
5. Click on the 'Add rule' button to create a new rule
6. Add the following rule and hit save
| Rule name | Direction | Rule Type | Protocol | Port Range | Source Type | Source | Destination Type |
|---|---|---|---|---|---|---|---|
| 2268-udp | ingress | Custom Rule | UDP | 2268 | Network | 0.0.0.0/0 | Instance |
| 22-ssh-tcp | ingress | Custom Rule | TCP | 22 | Network | 0.0.0.0/0 | Instance |
Now you are ready to provision the client!
Provision the client VM
- Go to Provisioning → Instances and click 'Add' button
2. Go to network category and select 'EUMETCAST TERRESTRIAL ON AMT':
3. Select name for your VM: eumetcast-client
4. Use the following specifications for the provisioning of the client:
CPU | 8 cores |
RAM | 64 GB |
OS | Ubuntu v 18.04 |
Storage | 1.2TB |
EWC Plan | hm.xlarge |
5. Save and create the VM
Once the service is provisioned, the user will start to receive their subscribed data on their VM (stored by default in /root/data/eumetcast/ but can be changed in the /etc/cast-client-channels_ter-1.ini file).
A crontab is automatically activated in order to prevent the build-up of data on the machine
All data is deleted 5 mins after retrieval by default and this can be changed by the user. (See section below)
How to modify the time to live of the data
sudo crontab -e
You have to setup both crontabs to the same time!
How to have real time logging
The entries to the log file for the tellicast client (/var/log/tellicast-client/recv_ter-1.log) is by default buffered.
In order to get real-time log events:
- ssh into the VM
2. Alter the file /etc/cast_client_ter-1.ini, removing the “>>” in front of the log file path:
log_file=/var/log/tellicast-client/recv_ter-1.log
3. After altering the file, you have to restart the service running the following command:
sudo systemctl restart tellicast-client