參數(shù)資料
型號: ADM6926
廠商: Electronic Theatre Controls, Inc.
英文描述: 26 port 10/100 Mbps Ethernet Switch Controller
中文描述: 26端口10/100 Mbps以太網(wǎng)交換機控制器
文件頁數(shù): 22/85頁
文件大小: 4222K
代理商: ADM6926
ADM6926
Function Description
(1)
Packets received are untagged
(2)
Packets received are tagged
Force no
tag
Bypass
Output port
is tagged or
not
Action
No
No
No
The Tag is removed.
Yes
No
No
Tag as the original. The priority in the TAG header is not checked and VID will not
change even if VID is 0 or 1.
No
Yes
No
Tag as the original. The priority in the TAG header is checked and if the VID is 0 or
1, it may change to PVID (see EEPROM register 1ch, Bit[3])
No
No
Yes
Tag as the original. The priority in the TAG header is checked and if the VID is 0 or
1, it may change to PVID (see EEPROM register 1ch, Bit[3])
No
Yes
Yes
Tag as the original. The priority in the TAG header is checked and if the VID is 0 or
1, it may change to PVID (see EEPROM register 1ch, Bit[3])
Yes
Yes
No
Tag as the original. The priority in the TAG header is not checked. The VID will not
change.
Yes
No
Yes
The Tag will be added and packet will be double tagged output. The VID will not
change.
Yes
Yes
Yes
Tag as the original. The priority in the TAG header is not checked. The VID will not
change.
3.1.13 Priority Control
The ADM6926 provides two priority queues on each output port. Five ways could be
used to assign a priority to a packet.
(1) The priority assigned to each receiving port.
(2) The priority field in the 802.1Q Tag Header.
(3) The IPv4 TOS field in the IPv4 Header.
(4)
Priority assigned by the CPU.
(5) Management packet (high priority assigned).
ADMtek Inc.
3-6
Force no
tag
Bypass
Output port
is tagged or
not
Action
No
No
Untag as the original.
Yes
No
Untag as the original
No
Yes
Add Tag.
Don’t Care
Yes
Yes
Untag as the original
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