Port Speeds; Auto Selection Of Port Speed; Connecting Units; Cables Types - Cisco SF500-24 Administration Manual

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Port Speeds

The speed of stack ports can be set manually or set to auto selection. The
following describes the available types of stack ports and their speeds on the
various types of devices:
Stack Port Speeds
Device Type Port Pair
Sx500 S1, S2
Sx500 S3, S4
SG500X S1, S2 - XG
SG500X S1, S2 - 5G

Auto Selection of Port Speed

You can set the stacking cable type to be discovered automatically when the
cable is connected to the port (auto-discovery is the default setting). The system
automatically identifies the stack cable type and selects the highest speed
supported by the cable and the port.
A SYSLOG message (informational level) requesting that the user configures the
port speed manually is displayed when the cable type is not recognized.

Connecting Units

Two units can only be connected in a stack if the ports on both ends of the link are
of the same speed. This is done by configuring the stack ports speed to:
• Auto Speed mode
• Same speed on each side of the connection

Cables Types

Each type of stack port can be used with specific cable types.
Cisco 500 Series Stackable Managed Switch Administration Guide Release 1.3
Administration: Stack Management
Possible Speeds in
Stack
1G
5G/1G
10G/1G
5G/1G
Stack Ports
Auto Speed
Selection
Available
No
Yes
Yes
Yes