The configuration of channel bundling for a connection is made up of three settings.
- Select a communication layer for the remote station from the layer list
that has bundling activated in the Layer-2 options. Select from the following
Layer-2 options:
- compr. according to the LZS data compression procedure (Stac) reduces the amount of data if the data hasn't already been compressed. This procedure is also supported by routers of other manufacturers and by ISDN adapters under Windows operating systems.
- bundle uses two B channels per connection.
- bnd+cmpr uses both (compression and channel bundling) and provides the maximum possible data transmission performance.
- Now create a new entry in the peer list. When doing so, watch the holding
times for the connection. Please observe the following rules:
- Depending on the type of application, the B1 hold time should be increased to such a level so that the connection is not dropped prematurely because of packets not being transmitted for a short time. Experience has shown that values between 60 and 180 seconds are a good basis which can be adapted as required during operation.
- The B2 holding time determines whether static or dynamic channel bundling will be used (see above). A B2 holding time of '0' or '9999' ensures that the bundling will be static; values in between permit dynamic channel bundling. The B2 holding time defines how long the data throughput may lie below the threshold for dynamic channel bundling without the second B channel automatically being disconnected.
- Use the entry for the Y connection in the Router interface list to determine what should happen if a second connection to a different remote station is requested during an existing connection using channel bundling.
WEBconfig: LCOS menu tree / Setup / WAN / Router-interface-list
- Y connection On: The router interrupts the bundled connection
to establish a connection to the other remote station. When the second
channel is free again, the originally bundled connection automatically
takes the channel back (always in the case of static bundling, only as
required when using dynamic bundling).
- Y connection Off: The router maintains the existing bundled connection; the establishment of the new connection must wait.
Note: Please note that if channel bundling is used, the cost of two connections is charged.Here no additional connections via the LANCAPI are possible! So you should only use channel bundling if the double transmission capacity can really be used in full.