3Com S7902E, Руководство по настройке

Страница: 1797 / 2621

12
Table 12-5 Restrictions about the configuration
Item Restrictions
Priority remarking based
on the source MAC
address or destination
Mac address
z
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.
z
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.
z
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.
z
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
z
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.
z
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.
z
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.
z
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
—