xStack DGS-3612G Layer 3 Gigabit Ethernet Managed Switch CLI Manual
config stp ports
probability the port will be chosen to forward packets.
hellotime <value 1-10>
−
The time interval between transmission of
configuration messages by the designated port, to other devices on the
bridged LAN, thus stating that the Switch is still functioning. The user may
choose a time between 1 and 10 seconds. The default is 2 seconds.
migrate [yes | no]
– Setting this parameter as “
yes
” will set the ports to send
out BPDU packets to other bridges, requesting information on their STP
setting If the Switch is configured for RSTP, the port will be capable to
migrate from 802.1d STP to 802.1w RSTP. If the Switch is configured for
MSTP, the port is capable of migrating from 802.1d STP to 802.1s MSTP.
RSTP and MSTP can coexist with standard STP, however the benefits of
RSTP and MSTP are not realized on a port where an 802.1d network
connects to an 802.1w or 802.1s enabled network. Migration should be set as
yes
on ports connected to network stations or segments that are capable of
being upgraded to 802.1w RSTP or 802.1s MSTP on all or some portion of
the segment.
edge [true | false]
–
true
designates the port as an edge port. Edge ports
cannot create loops, however an edge port can lose edge port status if a
topology change creates a potential for a loop. An edge port normally should
not receive BPDU packets. If a BPDU packet is received it automatically
loses edge port status.
false
indicates that the port does not have edge port
status.
p2p [true | false | auto]
–
true
indicates a point-to-point (P2P) shared link. P2P
ports are similar to edge ports however they are restricted in that a P2P port
must operate in full-duplex. Like edge ports, P2P ports transition to a
forwarding state rapidly thus benefiting from RSTP. A p2p value of false
indicates that the port cannot have p2p status.
auto
allows the port to have
p2p status whenever possible and operate as if the p2p status were
true
. If
the port cannot maintain this status (for example if the port is forced to half-
duplex operation) the p2p status changes to operate as if the p2p value were
false
. The default setting for this parameter is
auto
.
state [enable | disable]
−
Allows STP to be enabled or disabled for the ports
specified in the port list. The default is
enable
.
lbd [enable | disable]
- Used to enable or disable the loopback detection
function on the Switch for the ports configured above in the
config stp
command.
fbpdu [enable | disable]
−
Allows the forwarding of STP BPDU packets from
other network devices when STP is disabled on the Switch. This function can
only be in use when STP is globally disabled and forwarding BPDU packets
is enabled. The default is
enabled
and BPDU packets will not be forwarded.
Restrictions Only
administrator-level users can issue this command.
Example usage:
To configure STP with path cost 19, hellotime set to 5 seconds, migration enable, and state enable for ports 1-5 of module 1.
DGS-3612G:4#config stp ports 1-5 externalCost 19 hellotime 5
migrate yes state enable
Command: config stp ports 1-5 externalCost 19 hellotime 5
migrate yes state enable
Success.
DGS-3612G:4#
75
