Specifications

xStack DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
Example usage:
To configure STP with maxage 18 and maxhops of 15:
DGS-3400:4#config stp maxage 18 maxhops 15
Command: config stp maxage 18 maxhops 15
Success.
DGS-3400:4#
config stp ports
Purpose Used to setup STP on the port level.
Syntax
config stp ports <portlist> {externalCost [auto | <value 1-200000000>] |
hellotime <value 1-10> | migrate [yes | no] edge [true | false] | p2p [true |
false | auto] | state [enable | disable] | lbd [enable | disable] | fbpdu
[enable | disable]}
Description This command is used to create and configure STP for a group of ports.
Parameters
<portlist> − Specifies a range of ports to be configured. The port list is
specified by listing the lowest switch number and the beginning port number
on that switch, separated by a colon. Then the highest switch number, and
the highest port number of the range (also separated by a colon) are
specified. The beginning and end of the port list range are separated by a
dash. For example, 1:3 specifies switch number 1, port 3. 2:4 specifies switch
number 2, port 4. 1:3-2:4 specifies all of the ports between switch 1, port 3
and switch 2, port 4 − in numerical order. Non-contiguous portlist entries are
separated by a comma. (ex: 1:1-1:3,1:7-1:9)
externalCost − This defines a metric that indicates the relative cost of
forwarding packets to the specified port list. Port cost can be set
automatically or as a metric value. The default value is auto.
• auto – Setting this parameter for the external cost will automatically
set the speed for forwarding packets to the specified port(s) in the list
for optimal efficiency. Default port cost: 100Mbps port = 200000.
Gigabit port = 20000.
• <value 1-200000000> - Define a value between 1 and 200000000 to
determine the external cost. The lower the number, the greater the
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 BDPU 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
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