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C
HAPTER
 13: E
THERNET
 P
ORT
 C
ONFIGURATION
Perform the following configuration in Ethernet port view.
By default, Ethernet port flow control is disabled.
Setting the Interval of 
Performing Statistics 
on Ports
Use the following configuration tasks to set the interval of performing statistics on 
ports. The switch performs the statistics about the average speed during the 
interval.
Perform the following configuration in Ethernet port view to set the interval of 
performing statistics on ports.
Enabling/Disabling 
Jumbo Frames’ Passing a 
Card
During large throughput data switching, like file transmission, a card may 
encounter jumbo frames larger than the standard Ethernet frame length. The 
following command can be used to enable jumbo frames to pass a card or disable 
them from passing a card.
Perform the following configuration in system view.
By default, jumbo frames are allowed to pass cards.
The system supports discrete values of Jumbo frame lengths ranging from 1536 to 
10240. However, effective Jumbo frame values fall into several sections: the 
Table 73   Enabling/disabling flow control for the Ethernet port
Operation 
Command 
Enable Ethernet port flow control 
flow-control 
Disable Ethernet port flow control 
undo flow-control
Table 74    Set the interval of performing statistics on ports
Operation 
Command 
Description 
Enter system view 
system-view 
Enter Ethernet port view 
Interface interface-type 
interface-number
 
Optional;
The interface-type argument 
is the Ethernet port type 
Enter PoS port view 
Interface interface-type 
interface-number
 
Optional;
The interface-type argument 
is the PoS port type 
Set the interval of performing 
statistics on ports 
flow-interval interval 
Required;
The interval of performing 
statistics on ports is 300 
seconds by default
Table 75   Enabling/disabling jumbo frames’ passing a card
Operation 
Command 
Enable Jumbo frames to pass the card on a 
specified slot, and set the maximum length of 
Jumbo frames allowed to pass the card 
jumboframe enable [ jumboframe-value ] 
slot slot-num 
Disable Jumbo frames from passing the card 
on a specified slot 
jumboframe disable slot slot-num