发明名称 |
Provider backbone bridging - provider backbone transport internetworking |
摘要 |
An Ethernet virtual switched sub-network (VSS) is implemented as a virtual hub and spoke architecture overlaid on hub and spoke connectivity built of a combination of Provider Backbone Transport (spokes) and a provider backbone bridged sub-network (hub). Multiple VSS instances are multiplexed over top of the PBT/PBB infrastructure. A loop free resilient Ethernet carrier network is provided by interconnecting Provider Edge nodes through access sub-networks to Provider Tandems to form Provider Backbone Transports spokes with a distributed switch architecture of the Provider Backbone Bridged hub sub-network. Provider Backbone transport protection groups may be formed from the Provider Edge to diversely homed Provider Tandems by defining working and protection trunks through the access sub-network. The Provider Backbone Transport trunks are Media Access Control (MAC) addressable by the associated Provider Edge address or by a unique address associated with the protection group in the Provider Backbone Bridged network domain.
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申请公布号 |
US2007076719(A1) |
申请公布日期 |
2007.04.05 |
申请号 |
US20060479694 |
申请日期 |
2006.06.30 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
ALLAN DAVID;BRAGG NIGEL;HOLNESS MARC;FRISKNEY ROBERT;PARRY SIMON |
分类号 |
H04L12/56 |
主分类号 |
H04L12/56 |
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