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CRS-300 1:10 Redundancy Switch Revision 16

Ethernet Network Configurations MN/CRS300.IOM

3–4

3.3.3 Hub-to-Hub with Standard Traffic using Switches

When connecting two or more “hub-sites” where there are multi-paths between each site, care must

be taken to ensure no network loops occur. Figure 3-2

depicts two hub-sites conn

ected with two or

more modems where all the traffic being transmitted and received is on the same LAN/VLAN.

Figure 3-3 shows a simplified version of the Networ

king Loop. Since there is no router in the

network and all the traffic is destined to the same network, routing loops have been created.

As illustrated, two switches have been connected, each with two or more separate connections.

This is not how the Ethernet switches were designed to be used, and this configuration will cause

a network outage.

Figure 3-2. Networking Loop Example

Figure 3-3. Networking Loop Example (Simplified)

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Comtech EF Data CDM-700 Spécifications Page 50