Outlines the limitations and compatibility requirements for implementing G.8032 ERPS on Cisco switches.
Be aware of these restrictions when configuring G.8032 ERPS on your network:
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This feature is supported only on Cisco IE31xx series switches and third-party switches with G.8032 compatibility.
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The feature operates independently and cannot be combined with other ring protocols. It should not be enabled on ports configured with STP, DLR, REP, or MRP protocols. Furthermore, no other ring configurations should be retained, even in a dormant state. On ports not configured for G.8032, STP and other protocols are expected to function normally.
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Only one ring per instance is supported. Multiple ring configurations are not supported.
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G.8032 ring ports should be configured in VLAN trunk mode.
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G.8032 ring ports cannot be configured on port-channel interfaces.
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Sub-50 milliseconds convergence is not supported at an interface speed of 100 Mbps. However, it is supported for 1Gigabit Ethernet interfaces.
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The control VLAN should be exclusively used for G.8032 ERPS and CFM control packets and should not be used for any other user or control traffic.
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G.8032 convergence is only supported with a CFM (CCM) interval of 3.3 ms. Other CCM intervals are not supported.
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The G8032 ring node role as a next-neighbor is not supported in the current release.