L-INX User Manual
183
LOYTEC
Version 4.0
LOYTEC electronics GmbH
7.1.1 Configured Router Mode
In this operating mode, the router acts like a standard configured router, which can be
configured with standard network management tools like LonMaker or NL-220. This
operating mode is compatible with the
i
.
LON
1000 and the
i
.
LON
600.
This operating mode uses the ―channel routing‖ routing strategy on the IP channel. In this
mode the device is fully compatible with
i
.
LON
1000/600 devices. This operating mode
should also be used in networks with more than 10 IP devices on one IP channel and heavy
network traffic on the IP channel (more than 500 packets/s) since channel routing sends the
IP packet only to the IP-852 device(s) that connect to the CEA-709 node(s) addressed in
this IP packet and not to all IP-852 devices on the IP channel. This is the standard operating
mode.
7.1.2 Smart Switch Mode
The router can be configured to act as a learning switch in a CEA-709 network. This
operating mode is called smart switch mode. In this operating mode, the router decides if
the message has to be forwarded or not, based on the destination address of a message.
Thus, it isolates local network traffic (e.g., in case of heavily loaded networks).
Important:
This operating mode doesn’t support network loops!
Important:
Whenever a network is reconfigured, it is recommended to clear the forwarding tables in
the device by pressing the status button for at least 20 seconds (see Section 3.5.1).
The router supports learning of up to 4 Domains.
Note:
All messages, which are received on an unknown domain, are forwarded to all ports!
The subnet/node learning algorithm supports segmentation of the network traffic on a
subnet/node basis. Thus, the user does NOT need to take care of any subnets spanning
multiple physical channels. Even when a node is moved from one channel to another, the
router keeps track and modifies its forwarding tables accordingly.
Note:
All messages with a destination subnet/node address not yet learned are forwarded!
The router supports group learning. Groups can span multiple router ports.
Note:
Group learning only works for messages using acknowledged or request/response service.
Note:
All messages with a destination group address not yet learned are forwarded!
The router has no learning strategy for broadcast addresses. As a result, all subnet or
domain wide broadcasts are always forwarded. If subnet wide broadcasts shall not be
forwarded, please use the smart switch operating mode without subnet broadcast forwarding
(see Section 7.1.4).
The router has no learning strategy for unique node ID addresses. Node ID addressed
messages are always forwarded.
This operating mode uses the ―channel routing‖ strategy on the IP channel to distribute IP
packets. It uses flooding to send all packets on the IP channel to all IP devices on this IP
channel. The advantage of this operating mode is that it is fully plug&play and no router
configuration is required. The disadvantage is that this operating mode doesn‘t scale very
well with larger networks. We do not recommend this operating mode for IP channels with
