RuggedCom Welder RS400 用户手册

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页码 275
 
 
MAC Address Tables 
RS400 
209 
ROS™  v3.5 
Specifies what Class Of Service is assigned to frames carrying this address as source or 
destination address 
 
9.2  Configuring MAC Address Learning Options  
 
Figure 144: MAC Address Learning Options Form 
 
Aging Time 
Synopsis: 15 to 800 
Default: 300 s
 
This parameter configures the time a learned MAC address is held before being aged out. 
Age Upon Link Loss 
Synopsis: { No, Yes } 
Default: Yes
 
When link failure (and potentially a topology change) occurs the switch may have some MAC 
addresses previously learned on the failed port. As long as those addresses are not aged-out 
the switch will still be forwarding traffic to that port, thus preventing that traffic from reaching its 
destination via the new network topology. This parameter allows to age-out all MAC addresses 
learned on a failed port immediately upon link failure detection. 
 
9.3  Configuring Static MAC Address Table 
Static MAC addresses are usually configured when the user wishes to enforce port security (if 
supported). 
Static MAC addresses are also configured when a device can receive but cannot transmit 
frames. 
Prioritized MAC addresses are configured when traffic to or from a specific device on a LAN 
segment is to be assigned a higher CoS priority than other devices on that LAN segment.