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Provider Backbone Bridge Traffic Engineering was originally developed in 2006 as a Nortel specific protocol named Provider Backbone Transport (PBT). The company championed the technology and brought it to the IEEE 802.1 committee where it was renamed to PBB-TE and a working group, P802.1Qay, was chartered on May 7, 2007.
[1] [4] The company gained the foundational technology for the VENA strategy through its $915 million acquisition of Nortel Enterprise Solutions business unit in December 2009. [5] The VSP 7000 supports 24 fixed ports at 1 or 10 Gigabits per second via SFP+ sockets and offers both front-to-back and back-to-front cooling options.
PBT and PET are sensitive to hot water above 60 °C (140 °F). PBT and PET need UV protection if used outdoors, and most grades of these polyesters are flammable, although additives can be used to improve both UV and flammability properties. PBT is produced by the polymerization of 1,4-butanediol and terephthalic acid. [4] [5]
IEEE 802.1aq is an amendment to the IEEE 802.1Q networking standard which adds support for Shortest Path Bridging (SPB).This technology is intended to simplify the creation and configuration of Ethernet networks while enabling multipath routing.
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The evaluation confirmed suspected vPvB properties, [4] leading to its inclusion on ECHA’s PBT assessment list. [19] Following the confirmation of vPvB properties, KEMI considered it appropriate to prepare and submit a substance of very high concern (SVHC) dossier.