3com S7906E 참조 가이드

 

1-17 

port leaves the aggregation group. For detailed information about link aggregation, refer to Link 

Aggregation Configuration in the Access Volume.  

z 

If the mode is set to auto on a port, the port automatically recognizes and resolves the received 

compatible-format BPDUs or 802.1s-compliant BPDUs, and sends, when needed, 

compatible-format or 802.1s-compliant BPDUs.  

z 

If the mode is set to legacy or dot1s on a port, the port can only receive and send BPDUs of the 

specified format. If the port is configured not to detect the packet format automatically while it works 

in the MSTP mode, and if it receives a packet in the format other than the configured format, it will 

become a designated port and remain in the discarding state to prevent the occurrence of a loop.  

# Configure Ethernet 1/1 to receive and send only standard-format (802.1s) MSTP packets.  

<Sysname>system-view 

[Sysname] interface GigabitEthernet 2/0/1 

[Sysname-GigabitEthernet2/0/1] stp compliance dot1s 

# Restore the default mode for port Ethernet 1/1 to recognize and send MSTP BPDUs.  

[Sysname-GigabitEthernet2/0/1] undo stp compliance 

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

2: System level 

None 

Use the stp config-digest-snooping command to enable Digest Snooping. 

Use the undo stp config-digest-snooping command to disable Digest Snooping. 

The feature is disabled by default. 

Note that: 

z 

Configured in system view, the setting takes effect globally; 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 

port leaves the aggregation group. For detailed information about link aggregation, refer to Link 

Aggregation Configuration in the Access Volume.