DGS-3700 Series Layer 2 Managed Gigabit Ethernet Switch CLI Reference Guide
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config stp version
Description
This command allows the user to choose the version of the spanning tree to be
implemented on the Switch.
Parameters
mstp
– Selecting this parameter will set the Multiple Spanning Tree Protocol (MSTP)
globally on the Switch.
rstp
−
Selecting this parameter will set the Rapid Spanning Tree Protocol (RSTP)
globally on the Switch.
stp
−
Selecting this parameter will set the Spanning Tree Protocol (STP) globally on
the Switch.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To set the Switch globally for the Multiple Spanning Tree Protocol (MSTP):
DGS-3700-12:5#config stp version mstp
Command: config stp version mstp
Success
DGS-3700-12:5#
config stp
Purpose
Used to setup STP, RSTP and MSTP on the Switch.
Syntax
{maxage <value 6-40> | maxhops <value 6-40> | hellotime <value 1-2> |
forwarddelay <value 4-30>| txholdcount <value 1-10> | fbpdu [enable |
disable] |nni_bpdu_addr [dot1d | dot1ad]}
Description
This command is used to setup the Spanning Tree Protocol (STP) for the entire
Switch. All commands here will be implemented for the STP version that is
currently set on the Switch.
Parameters
maxage <value 6-40>
−
This value may be set to ensure that old information does not
endlessly circulate through redundant paths in the network, preventing the effective
propagation of the new information. Set by the Root Bridge, this value will aid in
determining that the Switch has spanning tree configuration values consistent with
other devices on the bridged LAN. If the value ages out and a BPDU has still not
been received from the Root Bridge, the Switch will start sending its own BPDU to
all other switches for permission to become the Root Bridge. If it turns out that
your switch has the lowest Bridge Identifier, it will become the Root Bridge. The
user may choose a time between
6
and
40
seconds. The default value is
20
.
maxhops <value 6-40>
−
The number of hops between devices in a spanning tree
region before the BPDU (bridge protocol data unit) packet sent by the Switch will
be discarded. Each switch on the hop count will reduce the hop count by one until
the value reaches zero. The Switch will then discard the BDPU packet and the
information held for the port will age out. The user may set a hop count from
6
to
40
. The default is 2
0
.
hellotime <value 1-2>
−
The user may set the time interval between transmission of
configuration messages by the root device, thus stating that the Switch is still
functioning. A time between
1
and
2
seconds may be chosen, with a default setting
of
2
seconds.