Mocomtech CRS-300 Hub-to-Hub with Standard Traffic using Switches, Networking Loop Example

CRS-300 1:10 Redundancy Switch	Revision 16
Ethernet Network Configurations	MN/CRS300.IOM

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 3-2depicts two hub-sites connected with two or more modems where all the traffic being transmitted and received is on the same LAN/VLAN.

Figure 3-3shows a simplified version of the Networking 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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