Multiple Spanning Tree Protocol (MSTP) | 343
To view the current values for MSTP parameters, use the show running-config spanning-tree mstp command
from EXEC privilege mode.
Figure 19-7. Viewing the Current Values for MSTP Parameters
Enable BPDU Filtering globally
The enabling of BPDU Filtering stops transmitting of BPDUs on the operational port fast enabled ports by
default. When BPDUs are received, the spanning tree is automatically prepared. By default global bpdu
filtering is disabled.
Change the hello-time parameter.
Note: With large configurations (especially those with more
ports) Dell Force10 recommends that you increase the
hello-time.
Range: 1 to 10
Default: 2 seconds
hello-time seconds PROTOCOL MSTP
Change the max-age parameter.
Range: 6 to 40
Default: 20 seconds
max-age seconds PROTOCOL MSTP
Change the max-hops parameter.
Range: 1 to 40
Default: 20
max-hops number PROTOCOL MSTP
Task Command Syntax Command Mode
FTOS(conf-mstp)#forward-delay 16
FTOS(conf-mstp)#exit
FTOS(conf)#do show running-config spanning-tree mstp
!
protocol spanning-tree mstp
no disable
name my-mstp-region
MSTI 1 VLAN 100
MSTI 2 VLAN 200-300
forward-delay 16
MSTI 2 bridge-priority 4096
FTOS(conf)#
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