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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 1:1
0
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 R
edundancy 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.
I
MPORTANT
The wired-around redundancy approach is not recommended.