Fuse-IP and SmartStream PLUS
Tieline’s proprietary Fuse-IP data aggregation technology lets you bond any IP interfaces you choose. Imagine the peace of mind knowing you can bond 2 USB modem data links from different Telcos and let Tieline’s Fuse-IP technology automatically manage the data capability of each link! Flexibility is paramount for remotes, so you can even bond a USB modem with a Wi-Fi connection, or bond two Ethernet connections.
ViA also includes Tieline’s SmartStream PLUS dual redundant streaming software, which has set the benchmark for redundant IP streaming over the public internet. Tieline codecs feature highly advanced backup and redundancy options to maintain reliable audio codec streaming. These include the options outlined in the following table:
Tieline Audio Codec Backup Features |
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Backup Option |
Transport: IP, ISDN or POTS |
Time Required to Respond |
How to Enable |
SmartStream PLUS |
IP Only (Note: redundant packet stream sent; codec detects IP packet loss or delayed packets) |
No time delay - simultaneous dual redundant streaming |
Enabled in dialing codec program; configures local decoding, or remote decoding via session data |
Fuse-IP |
IP Only: multiple IP interfaces are bonded and data is shared across interfaces |
No time delay if interface is lost; immediately adjusts to existing network data capacity |
Configure multiple IP interfaces and create a Fuse-IP "Tunnel" prior to dialing destination codec |
On-demand (cold) Failover |
All transports (Note: codec detects loss of data or connection and redials the backup connection) |
User configurable detection parameters during program configuration*. Delay is equal to detection time plus the time required to dial the alternative connection |
Dialing codec program monitors streaming and manages failover |
FEC (Tieline FEC or RFC 2733 compliant FEC) |
Decoding codec detects IP packet loss or delayed packets. Note: Only Tieline Music and Music PLUS can be used for Tieline FEC. |
No failover time delay as packet replacement occurs in real-time. Note: RFC compliant FEC can be configured to send 100% FEC at a specified delay if desired. |
•Dialing codec using Tieline session data configures local and remote FEC settings via session data transfer when connecting, or •In sessionless mode FEC configuration is as per RFC compliant settings configured in the local and remote codecs. |
Auto Reconnect |
All transports; codec will redial continuously to try and reconnect |
Immediately redials after loss of IP stream detected |
Enabled in dialing codec program |
* Note: POTS can take up to 60 seconds to connect successfully.
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Important Note: Failover and SmartStream PLUS redundant streaming are not available with SIP or sessionless IP connections. |
SmartStream PLUS Redundant IP Streaming
Tieline’s proprietary SmartStream PLUS IP technology ensures you’re always on the air. The codec features dual Ethernet IP ports allowing two completely independent IP connections. There are three levels to SmartStream PLUS IP streaming.
1.The codec can stream simultaneous redundant data streams from both Ethernet ports and deliver seamless redundancy by switching back and forth, without loss of audio, from the nominated primary data link to the backup link if one fails and then subsequently recovers. Use IP links from two different IP network providers for optimal redundancy over mission critical connections.
2.Second, when multiple redundant audio streams are sent, the decoding codec automatically reconstructs audio into a single stream on a first packet arrived basis, to minimize program latency and ensure audio integrity.
3.Third, SmartStream PLUS features automated jitter buffer management and Forward Error Correction (FEC) and these advanced network management tools deliver uncompromising audio quality, while dynamically responding to variable conditions over unmanaged IP networks like the internet.
These combined measures ensure Tieline is capable of offering a rock solid IP audio solution for broadcasting IP audio economically and efficiently across broadcast networks. See the procedures for configuring different programs using the web-GUI for more configuration details.
On-Demand Failover (IP, ISDN or POTS)
On-demand failover requires configuration of a primary connection and an on-demand 'cold' backup connection. On-demand failover is activated when the dialing codec program detects the loss of the primary connection, or if audio streaming ceases. The backup connection is then dialed to replace the primary connection.
The codec can be configured to switch to a backup connection over IP, ISDN or POTS as required. For example, you can create a program with IP as the primary connection and also create a backup ISDN connection, or a backup POTS connection in the same program. Note: ViA has a single module slot and can connect over POTS or ISDN if a ViA POTS or ViA ISDN module is installed. For details on configuring backup connections using failover see Configuring Mono or Stereo Peer-to-Peer Programs.
Forward Error Correction (FEC)
FEC transmits a secondary stream of audio data packets over a single connection. If packets are lost or corrupted over the connection then replacement FEC data packets can be substituted to replace them.
Note: FEC should not be confused with SmartStream PLUS. FEC packets are sent over a single data stream connection, whereas SmartStream PLUS dual redundant streaming transmits two completely redundant audio data streams. FEC is also a subset of features within SmartStream PLUS, which means you can configure SmartStream PLUS dual redundant data streams and also configure FEC on each of these data streams. For more info on FEC see Configuring Forward Error Correction.
Auto Reconnect
Auto Reconnect is the simplest form of connection backup whereby the codec will redial a lost connection continuously until it is either:
•Re-established, or
•Dialing is manually stopped.
Auto reconnect can be enabled when configuring a codec program designed to dial another codec or codecs. See the procedures for configuring different programs using the web-GUI for more configuration details.
