Specifications

Switching disable stp port 8-115
Software Release 2.7.3
C613-03098-00 REV A
disable stp port
Syntax DISable STP[={stp-name|ALL}] POrt={port-list|ALL}
where stp-name is a character string 1 to 15 characters long. Valid characters are
uppercase and lowercase letters, digits, the underscore, and the hyphen.
port-list is a port number, range (specified as n-m), or comma-separated list of
numbers and/or ranges. Port numbers start at 1 and end at m, where m is the
highest numbered switch Ethernet port, including uplink ports.
Description This command disables operation of the Spanning Tree Algorithm on the
specified ports – normal switch processing continues. Disabled ports that are
part of an enabled STP can still forward packets. This command is effective
when the STP that the port belongs to is currently enabled. Disabling the
operation of STP on a port does not affect the port’s ability to receive and
transmit frames.
On the Rapier i Series switches only, a port can belong to multiple STPs when
the port is a member of more than one VLAN.
A port can belong to a single STP. This means that when a port is member of
multiple VLANs, all these VLANs must belong to the same STP.
Disabling the Spanning Tree Algorithm on one or more ports puts those ports
in the Disabled state; all BPDUs received on these ports are discarded.
Disabling an STP port does not affect the debug status of the port as set by the
enable stp debug command. However, no STP debugging information is
produced on a disabled port.
Disabling STP operation on a port may affect the operation of GARP. Each
GARP application has a GIP component whose actions depend upon whether
the port is in the STP forwarding state.
On the Rapier i Series switches only, the STP parameter specifies the STP
instance for which the port is disabled. If no value is provided, the default is
all.
The port parameter specifies the ports. If all is specified, all ports in the switch
are disabled. When the command succeeds on a subset of the specified ports
but causes errors on the others, then the command as a whole fails and has no
effect.
Examples To disable the Spanning Tree Algorithm from using port 4, use the command:
dis stp po=4
To disable STP on all ports, use the command:
dis stp po=all
On Rapier i Series switches only, to disable STP on just the administration
network and only on port 4, use the command:
dis stp=admin po=4
Related Commands enable stp port
set stp port
show stp port