Chapter 1: Overview
Redundant Twisted Pair Ports
Two of the twisted pair ports on the
For combo ports 7 and 8, the copper and SPF ports share the same bandwidth and cannot be activated simultaneously. If both the SFP and the copper ports are connected simultaneously, the SPF port has precedence over the copper port. Follow these guidelines when using ports 7 and 8:
Only one port in a pair can be active at a time. It can be either the twisted pair port or the corresponding SFP module.
The twisted pair port is the active port when its SFP slot is empty, or when an SFP module is installed but has not established a link to an end node.
The twisted pair port automatically changes to the redundant status mode when an SFP module establishes a link with an end node.
A twisted pair port automatically transitions back to the active status when the link is lost on the SFP module.
In nearly all cases, a twisted pair port and an SFP module share the same configuration settings, including port settings, VLAN assignments, access control lists, and Spanning Tree Protocol settings.
An exception to the shared settings is port speed. If you disable Auto- Negotiation on a twisted pair port and set the speed and duplex mode manually, the speed reverts to
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