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VSC7440 데이터시트(PDF) 280 Page - Microsemi Corporation

부품명 VSC7440
상세설명  L2/L3 Enterprise Gigabit Ethernet Switch with 10 Gbps Links
PDF  444 Pages
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제조업체  MICROSEMI [Microsemi Corporation]
홈페이지  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

VSC7440 데이터시트(HTML) 280 Page - Microsemi Corporation

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Functional Descriptions
VMDS-10492 VSC7440 Datasheet Revision 4.2
263
The following table lists ES0 VLAN tag actions.
Table 184 •
ES0 VLAN Tag Actions
ES0_ACTION
TAG_CFG
Tagging Action
No ES0 hit
Controls port
tag
The port tag is pushed according to TAG_CTRL.TAG_CFG as
outermost tag. The following options are available:
- Tag all frames with port tag.
- Tag all frames with port tag, except if classified VID = 0 or
classified VID=PORT_VLAN_CFG.PORT_VID.
- Tag all frames with port tag, except if classified VID = 0.
TAG_CTRL.TAG_VID_CFG selects between classified- or fixed-port
VID.
No inner tag.
PUSH_OUTER_TAG = 0
PUSH_INNER_TAG = 0
Controls port
tag
Same as No ES0 hit action.
PUSH_OUTER_TAG = 1
PUSH_INNER_TAG = 0
Don’t care
ES0 tag A is pushed as outer tag.
No inner tag.
PUSH_OUTER_TAG = 2
PUSH_INNER_TAG = 0
Don’t care
Port tag is pushed as outer tag. This overrules port settings in
TAG_CFG.
No inner tag.
PUSH_OUTER_TAG = 3
PUSH_INNER_TAG = 0
Don’t care
No tags are pushed. This overrules port settings in TAG_CFG.
PUSH_OUTER_TAG = 0
PUSH_INNER_TAG = 1
Controls port
tag
Port tag is pushed according to TAG_CFG as outermost tag. The
following options are available:
- Tag all frames with port tag.
- Tag all frames with port tag, except if classified VID = 0 or
classified VID = PORT_TAG_DEFAULT. PORT_TCI_VID.
- Tag all frames with port tag, except if classified VID = 0.
- No port tag.
TAG_CTRL.TAG_VID_CFG select between classified- or fixed-port
VID.
ES0 tag B is pushed as inner tag.
ES0 tag B is effectively the outer tag if the port tag is not pushed.
PUSH_OUTER_TAG = 1
PUSH_INNER_TAG = 1
Don’t care
ES0 tag A is pushed as outer tag.
ES0 tag B is pushed as inner tag.
PUSH_OUTER_TAG = 2
PUSH_INNER_TAG = 1
Don’t care
Port tag is pushed as outer tag. This overrules port settings in
TAG_CFG.
ES0 tag B is pushed as inner tag.
PUSH_OUTER_TAG = 3
PUSH_INNER_TAG = 1
Don’t care
No outer tag is pushed. This overrules port settings in TAG_CFG.
ES0 tag B is pushed as inner tag.
ES0 tag B is effectively the outer tag, because no outer tag is pushed.
Tag C is controlled separately and will always be the inner most tag.
All combinations of tags A to C are allowed.
PUSH_CUSTOMER_TAG = 0
Controls port
tag
Does not push customer tag (tag C).
PUSH_CUSTOMER_TAG = 1
Controls port
tag
Push tag C if IFH.VSTAX.TAG.WAS_TAGGED = 1.
PUSH_CUSTOMER_TAG = 2
Controls port
tag
Push tag C if IFH.VSTAX.TAG.WAS_TAGGED = 0.



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