发明名称 |
BRIDGED CRYPTOGRAPHIC VLAN |
摘要 |
The invention comprises three extensions of the IEEE 802.1Q VLAN bridge model. The first extension is the cryptographic separation of VLANs over trunk links. A LAN segment type referred to as an encapsulated LAN segment is introduced. All frames on such a segment are encapsulated according to an encryption and authentication code scheme. The second extension is the division of a trunk port into inbound and outbound ports. The third extension is a protocol that automatically infers for each outbound port in a bridged VLAN, a set of LAN segment types for the port that minimizes the number of transfers between encapsulated and unencapsulated segments required to transport a frame in the bridged VLAN. |
申请公布号 |
EP1556990(B1) |
申请公布日期 |
2017.02.22 |
申请号 |
EP20030789723 |
申请日期 |
2003.10.30 |
申请人 |
Microsoft Technology Licensing, LLC |
发明人 |
VOLPANO, Dennis, Michael;ZHAO, Xinhua, J. |
分类号 |
H04L29/06;H04L9/32;H04L12/46 |
主分类号 |
H04L29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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