Mocomtech CRS-300 Benutzerhandbuch

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CRS-300 1:10 Redundancy Switch 
Revision 16 
Ethernet Network Configurations MN/CRS300.IOM 
 3–6
 
3.3.4  Hub-to-Hub with Standard Traffic using Routers 
Figure 3-4 shows two hub-sites connected with standard Ethernet traffic, using routers instead of 
switches for Ethernet connection. The routers will block the broadcasts coming from the remote 
network. Therefore, no broadcast storm can be created or the possibility of having a remote MAC 
on the Hub networks. 
 
 
 
 
 
 
 
 
 
Figure 3-4. Hub-to-Hub with Standard Traffic using Routers   
 
A wired-thru Ethernet redundancy example is shown in Figure 3-5. When the CRS-300 1:10 
Redundancy Switch “backs-up” a faulted Traffic Modem, the physical port on the router does not 
change, because the Ethernet connection is properly rerouted within the CRS-300 from the 
Traffic Modem to the Redundant Modem.  
 
A wired-around Ethernet redundancy example is shown for the CDM-700 User in Figure 3-6
When the CRS-300 1:10 Redundancy Switch backs-up a faulted Traffic Modem, the physical port 
on the router needs to change from the Traffic Modem port to the Redundant Modem port. 
Because of this, special router configuration is required for successful operation – the User may 
need to  consult with the router manufacturer. 
 
IMPORTANT
 
 
The wired-around redundancy approach is 
not recommended.