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AR8327-AL1A-R 데이터시트(PDF) 39 Page - List of Unclassifed Manufacturers

부품명 AR8327-AL1A-R
상세설명  Seven-port Gigabit Ethernet Switch
PDF  394 Pages
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제조업체  ETC2 [List of Unclassifed Manufacturers]
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AR8327-AL1A-R 데이터시트(HTML) 39 Page - List of Unclassifed Manufacturers

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Atheros Communications, Inc.
AR8327/AR8327N Seven-port Gigabit Ethernet
Switch
•
39
Mode is checking if the ingress VID is valid and if the ingress port is belong to the member. The
following tables show the detail.
2.10.4
Port Isolation
When FORCE_PORT_VLAN_EN is enabled on the ingress port, except for VLAN member check, non-
management frames will conform to port-based VLAN member check.
2.10.5
Leaky VLAN
The AR8327 support leaky VLAN to enable specific frames to be forwarded across VLAN boundary.
Totally four types of frames can be leaked across VLAN boundary: Unicast, Multicast and ARP, among
which Unicast and Multicast leaky are port or MAC address based and ARP is port based.
2.10.6
VLAN Translation
The AR8327 supports VLAN translation function. The AR8327 will lookup the VLAN translation table
when packets arrive at the ingress port and packets transmit at the egress port.
2.10.7
VLAN Translation Table
The VLAN translation table allows user to modify the C-VID and/or S-VID. The table is shown below.
Table 2-23.
VLAN Security
ING_VLAN_MODE
Frame with Tag
Frame with Priority
Tagging
Frame without Tag
2’b00
Forward
Forward
Forward
2’b01
Forward
Drop
Drop
2’b10
Drop
Forward
Forward
2’b11
Forward
Forward
Forward
Table 2-24.
VLAN Security
802.1Q
VID miss
VLAN member violation
No violation
Secure
Drop
Drop
Forward
Use VLAN Table Result
Check
Drop
Forward
Use VLAN Table Result
Forward
Use VLAN Table Result
Fallback
Forward
Use VLAN Table Result
Forward
Use VLAN Table Result
Forward
Use VLAN Table Result
Disable
Forward
Use Port-based VLAN
Table 2-25.
VLAN Translation Table
Bit
Name
Description
11:0
O_VID
Original VID
23:12
S_VID
Service VID
35:24
C_VID
Custom VID



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