3com S7906E Guide De Référence

 

1-16 

Use the undo stp bridge-diameter command to restore the default.  

By default, the network diameter of the switched network is 7.  

An appropriate setting of hello time, forward delay and max age can speed up network convergence. 

The values of these timers are related to the network size. You can set these three timers indirectly by 

setting the network diameter. Based on the network diameter you configured, MSTP automatically sets 

an optimal hello time, forward delay, and max age for the device. With the network diameter set to 7 (the 

default), the three timer are also set to their defaults. 

Note that this configuration is effective for the CIST and root bridge only, and not for MSTIs.  

Related commands: stp timer forward-delay, stp timer hello, stp timer max-age.  

# Set the network diameter of the switched network to 5.  

<Sysname> system-view 

[Sysname] stp bridge-diameter 5 

stp compliance { auto | dot1s | legacy } 

undo stp compliance 

Ethernet port view, port group view, Layer-2 aggregate port view 

2: System level 

auto: Configures the port(s) to recognize the MSTP BPDU format automatically and accordingly 

determine the format of MSTP BPDUs to send.  

dot1s: Configures the port(s) to receive and send only standard-format (802.1s-compliant) MSTP 

BPDUs.  

legacy: Configures the port(s) to receive and send only compatible-format MSTP BPDUs.  

Use the stp compliance command to configure the mode the port(s) will use to recognize and send 

MSTP BPDUs.  

Use the undo stp compliance command to restore the system default.  

The default mode is auto, namely all ports recognize the BPDU format automatically.  

Note that:  

z 

Configured in port view, the setting takes effect on the current port only; configured in port group 

view, the setting takes effect on all ports in the port group.  

z 

Configured in Layer-2 aggregate port view, the setting takes effect only on the aggregate port. 

Configured on the member port in an aggregation group, the setting can take effect only after the