Cisco IE-3000-8TC Software Configuration Manual page 54
Software configuration guide
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Also See for IE-3000-8TC:
- Command reference manual (802 pages) ,
- Administration manual (496 pages) ,
- Message manual (98 pages)
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Network Configuration Examples
Figure 1-2
Human
Machine
Interface
Controllers
Cell Network—Ring Topology
A ring topology is similar to a trunk-drop topology except that the last switch in the chain is connected
to the Layer 3 switch that forms a network ring. If a connection is lost in a ring, each switch maintains
connectivity to the other switches. See
•
•
•
Cisco IE 3000 Switch Software Configuration Guide
1-18
Cell Network–Trunk-Drop Topology
Catalyst 3750
Stackwise
Switch
Stack
(HMI)
IE
3000
Controllers, Drives,
and Remote I/Os
Cell Zone
The network can only recover from the loss of a single connection.
It is more difficult to implement because it requires additional protocol implementation and Rapid
Spanning Tree Protocol (RSTP).
Although better than the trunk-drop, the top of the ring (connections to the Layer 3 switches) can
become a bottleneck and is susceptible to oversubscription, which can degrade network
performance.
Figure
1-3.
Chapter 1
Overview
OL-13018-03
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Troubleshooting
