Mapping a standalone Cisco SG300-28 shows 874 ports,
most are unused
Problem: you are mapping the switch
and you see 8 groups of switch ports, both Fast Ethernet
(fa prefix) and Gigabit Ethernet (gi prefix). Only the
first set of Gigabit Ethernet ports actually have any
data on them. All the other port show I/F Not Present in
the Status column.
Solution: your switch is capable of
an 8 switch stack and it is reporting as though it is in
8 switch stacked mode even though it is running in
standalone mode. You have to change a setting in the
switch so that it reports in standalone mode. The
default switch configuration is 'Native Stacking' as of
software version 220.127.116.11. This may change in later
- Login to the switch using your web browser.
the left side menu bar locate 'Administration',
'System Mode and Stack Management', place a tick in the
box before 'Stack Unit Number' of 1, and it unlocks the
'Stack Unit Mode' selector drop-down box.
- The default is 'Native Stacking', and when
unlocked the choices are 'Standalone', 'Native
Stacking', 'Basic Hybrid Stacking', and 'Advanced
Hybrid Stacking'. Select 'Standalone'.
- You will be asked to save and reboot. When
reboot is complete, the switch should map with the
expected 28 ports, 32 trunks and 16 tunnels.