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config stp
•
stp – Selct this parameter for IEEE 802.1d STP and for
IEEE 802.1w STP compatibility mode.
•
rstp - Select this paramter for IEEE 802.1w Rapid STP
mode.
txholdcount <1-10> - the maximum number of Hello packets
transmitted per interval. Default value = 3.
fbpdu [enable | disable]
−
Allows the forwarding of STP BPDU
packets from other network devices when STP is disabled on the
switch. The default is enabled.
Restrictions
Only administrator-level users can issue this command.
Example usage:
To configure STP with maxage 18 and hellotime 4:
DES-3550:4#config stp maxage 18 hellotime 4
Command: config stp maxage 18 hellotime 4
Success.
DES-3550:4#
config stp ports
Purpose
Used to setup STP on the port level.
Syntax
config stp ports <portlist> {cost [auto | <value 1-200000000>] |
priority <value 0-240> | migrate [yes | no] | edge [true | false] |
p2p [true | false | auto]| state [enable | disable]
Description
This command is used to create and configure STP for a group of
ports.
Parameters
cost<value> − This defines a metric that indicates the relative cost of
forwarding packets to the specified port list. Port cost can be set from
1 to 200000000. The lower the number, the greater the probability the
port will be chosen to forward packets.
Default port cost: 100Mbps port = 200000 Gigabit port = 20000
priority <value> − Port Priority can be from 0 to 240. The lower the
number, the greater the probability the port will be chosen as the Root
Port. Default = 128.
<portlist>
−
Specifies a port or range of ports to be configured.
migrate [yes | no] – yes will enable the port to migrate from 802.1d
STP status to 802.1w RSTP status. RSTP can coexist with standard
STP, however the benefits of RSTP are not realized on a port where
an 802.1d network connects to an 802.1w enabled network. Migration
should be enabled (yes) on ports connected to network stations or
segments that will be upgraded to 802.1w RSTP onall or some