Инструкции По Установке для 3com S7906E

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12 
Table 12-5 Restrictions about the configuration 
Item 
Restrictions 
Priority remarking based 
on the source MAC 
address or destination 
Mac address 
If a source MAC address–based traffic classification rule and a 
destination MAC address–based traffic classification rule are 
configured for a UNI port of an ONU, and if the uplink traffic satisfies 
both rules, only the destination MAC address–based traffic 
classification rule applies even if the other one has a higher priority. 
The configuration of destination MAC address–based priority 
remarking takes effect globally. Namely, a destination MAC 
address–based traffic classification rule configured for a UNI port of 
an ONU applies to incoming traffic from all the other UNI ports of the 
ONU.  
In the case of source MAC address–based priority remarking for a 
UNI port, the ONU adds the source MAC address and the 
corresponding UNI port statically into its MAC address table; In the 
case of destination MAC address–based priority remarking for a UNI 
port, the ONU adds the destination MAC address and the PON port 
of the ONU statically into its MAC address table.  
It does not support priority remarking based on the source MAC 
addresses/destination MAC addresses that are multicast MAC 
addresses, all-0 MAC addresses, broadcast MAC addresses, or the 
MAC address of the ONU. 
Priority remarking based 
on Ethernet priority 
When the VLAN operation mode is set to tag mode for a UNI and the 
CoS value in the traffic classification rule is the same as the priority of 
the UNI, the traffic classification rule will not take effect.  
Priority remarking based 
on VLAN ID 
The configuration of VLAN ID–based priority remarking takes effect 
globally. Namely, a VLAN ID–based traffic classification rule configured 
for a UNI port of an ONU applies to incoming traffic from all the other 
UNI ports of the ONU.   
Priority remarking based 
on Ethernet type, DSCP, 
IP protocol type, source 
IP address/destination IP 
address, or source L4 
port 
The configuration of priority remarking based on Ethernet type, 
DSCP, IP protocol type, source IP address/destination IP address, 
or source L4 port takes effect globally. Namely, such a traffic 
classification rule configured for a UNI port of an ONU applies to 
incoming traffic from all the other UNI ports of the ONU.  
If multiple rules are matched on the same UNI of an ONU, the match 
sequence is L3 
Æ L4 Æ L2; if the rules are for the same layer, the 
rule with the smallest index has the highest precedence.  
The device does not support priority remarking for different UNIs of 
an ONU based on the same Ethernet type, DSCP, IP protocol type, 
source IP address/destination IP address, or source L4 port. 
The device does not support priority remarking based on destination 
L4 ports. 
 
For VLAN operation mode introduction and configuration of a UNI, refer to EPON-OLT in the Access 
Volume.  
Configure traffic policing for downlink/uplink traffic of a UNI 
Follow these steps to configure traffic policing for downlink/uplink traffic of a UNI: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Enter ONU port view 
interface interface-type 
interface-number
 
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