Stack Management
Stack Ports
Cisco 500 Series Stackable Managed Switch Administration Guide
51
5
Stack Ports
Stack ports are used to connect units in the stack and to transfer data and protocol
packets among the units.
Table 2
describes the possible types of stack ports and their speeds on the
various types of devices:
If auto selection of the stack port speed is configured, the system automatically
identifies the stack cable type and selects the highest speed supported by the
cable and the port.
If auto selection of the stack port speed is not configured, all stack ports must be
set to the same speed, in order for the stack to functions correctly
When a Sx500 operates in stacking mode, S1 and S2 operate as regular network
ports, and S3 and S4 operate as stack ports by default. On the SG500X, S1 and
S2 are stack ports by default. You can manually reconfigure S1/S2 and S3/S4 as
network ports or stack ports as desired. All the stack ports on a device operates in
standalone mode will automatically become regular Ethernet network ports.
NOTE
The stack ports do not support 1G auto negotiation.
Table 2 Stack Port Speeds
Device Type
of Units in
Stack
Stack Port
Name on Front
Panel
Stack Port
Speeds in Stack
Auto
Speed
Selection
Available
SG500X
S1, S2 - XG
10G/1G
Yes
SG500X
S1, S2 - 5G
1G/5G
Yes
Sx500
S1, S2
1G
No
Sx500
S3, S4
1G/5G
Yes
