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VSC7440 Datasheet(PDF) 280 Page - Microsemi Corporation |
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VSC7440 Datasheet(HTML) 280 Page - Microsemi Corporation |
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280 / 444 page  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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