THOMSON R7.4, Руководство по настройке

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E-DOC-CTC-20080229-0001 v1.0
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4| Ethernet Bridge and VLANs
Ingress filtering
Each bridge port can be configured with the
ingressfiltering
parameter. This parameter is used to
check the VID of VLAN-tagged ingress traffic. This parameter decides whether a received frame is allowed or
dropped by the port:
If the parameter is disabled , both VLAN-tagged and non VLAN-tagged frames (i.e. untagged or priority-
tagged frames) are allowed on the port. Of course, these frames will only be sent out on interfaces that
are member of the correct VLAN.
If the parameter is enabled , VLAN-tagged frames are dropped if the receive port is not member of the
VID. VLAN-tagged frames are only allowed if the receive port is member of the VID. Non-VLAN tagged
frames are mapped to the VLAN that corresponds with the PVID.
By default, the parameter is disabled. To enable this parameter, execute following command:
Parameter status information
To obtain information on the status of the parameters that are described in this section, list the bridge port
configuration as follows:
=>:eth bridge ifconfig intf=ethport1 ingressfiltering=enabled
=>:eth bridge iflist intf=ethport1
ethport1 : dest : ethif1
Connection State: connected Retry: 10
Priority Tagging: NA (destination switch interface)
Port: ethport1
PortNr: 1 PortState: forwarding Interface: up
Multicast filter: disabled Dynamic VLAN : disabled
WAN : disabled
IGMP snooping : enabled
Transparent Prio: disabled
BPDU Filtering
: disabled
Extra Tagging : none
VLAN: Default VLAN: default Ingressfiltering: disabled Acceptvlanonly: disabled
VLAN: Priority: disabled IP Prec: disabled Priority: 0
Regeneration table: 0 1 2 3 4 5 6 7
RX bytes: 49421
frames: 14
TX bytes: 10512 frames: 22 dropframes: 0