The group also wants to add more equipment makers. With the latest test done Avaya and others will want to start educating customers that SPB is the right solution, he said. However, he added, interoperability testing is important to help customers confused about the multiple solutions on the market. Roger Lapuh, an Avaya product line manager in the company’s Ethernet switching group, said in an interview that the draft version of SPB is already available to customers in the ERS 8800. However, the next test will likely be hosted by an enterprise or carrier that is already evaluating the protocol. Only one switch had to be brought in, he said, from Los Angeles. Spirent’s chassis-based TestCenter was used to simulate the larger network, while Solana’s SmartHawk diagnostic appliance visualized the network.Īshwood-Smith said Ottawa was chosen for the three tests because the five participants have labs there. The latest test used 10 physical switches (including five Huawei Quidway S9300s, an Avaya Ethernet Routing Switch 8800 and an OmniSwitch 6900 from Alcatel-Lucent ). Shortest Path Bridging is a combination of proven existing standards, he said, including Intermediate System To Intermediate System (IS-IS), which dynamically builds the topology between network nodes the Ethernet data plane and the Ethernet connectivity fault management standard. The final specification is expected to be approved by the IEEE by the end of this year or early next year, he said. Peter Ashwood-Smith, a research fellow at Huawei’s Ottawa lab, said in an interview that the latest test, conducted earlier this summer, used the fourth draft of the SPB specification. Juniper has its own solution called QFabric. SPB, he added, is further along the standards certification route than TRILL, which is why Cisco and Brocade have added extensions to the native TRILL protocol.
“So this (latest test) is a milestone for the vendors that support Shortest Path Bridging as an alternative to (Ethernet’s) Spanning Tree and TRILL.” “The jury is still out for a lot of customers on what the best fabric solution, or next-generation data network, is going to look like,” he acknowledged. “A lot of buyers were very sceptical you wouldn’t be able to do it for a year.” “In a market where everyone is trying to solve the problem of getting virtual machines to run better on the network, I think interoperability testing at least brings in the viability of building a multi-vendor network,” Kerravala said. So equipment makers who go for an open standards solution like SPB have to assure customers through interoperability testing that they won’t get stuck if they buy other gear. “One of the questions I’ve heard from end users about fabrics is are these things really interoperable, or do I have to bank on a single-vendor solution?” he said.Ĭisco can offer a proprietary solution called FabricPath, based on a protocol called Transparent Interconnect of Lots of Links (TRILL) because a number of enteprises have all-Cisco networks, he said. The test, the third in Ottawa, sets up SPB to be a legitimate challenger to proprietary network fabric solutions offered by Cisco Systems Inc., Brocade Communications Systems and Juniper Networks, said Zeus Kerravala, senior vice-president of enterprise research at Yankee Group. and Huawei Technologies used the help of Ottawa’s Spirent Communications and Solana Networks to simulate a network of almost 200 modes and more than 400 links to pass traffic between their gear.
On Wednesday three major network equipment manufacturers said they recently successfully concluded a large-scale interoperability test in Ottawa of one of the technologies, the IEEE 802.1aq protocol called Shortest Path Bridging (SPB), which they say will allow enterprises and telecom carriers to greatly simplify how they create and configure large virtual networks. The road to virtualizing large data centres is partially blocked by the hunt for technologies that allow Layer 2 Ethernet switches to scale enough to allow large numbers virtual machines to traverse networks.
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