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Can Ethernet be tunneled over the Catalyst 3900 ISL links?

April 26, 2017catalyst Ethernet ISL LINKS tunneled

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Can Ethernet be tunneled over the Catalyst 3900 ISL links?

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A. No. Pass-thru of Ethernet traffic from one ISL port to another on the Catalyst 3900 is not supported. In addition, the Catalyst desktop Ethernet switches that support ISL do NOT support Token Ring ISL passthrough.