04.07.2009
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Nokia Siemens Networks (NSN) and Juniper Networks seem to be forging an ever closer relationship. Having recently joined forces to sell Carrier Ethernet equipment, the pair are now working together to integrate IP routing with WDM equipment — a concept called IP-over-DWDM or just IPoDWDM.
This development aligns Juniper's strategy more closely with that of Cisco Systems, which originally introduced IPoDWDM about three and a half years ago.
Juniper is bringing IP router expertise to the party, while NSN is providing its optical transport solution, and operational systems for both technologies. The aim is "to enable seamless interworking between IP and optical networks to improve network efficiency and reduce operator opex".
Simply put, a long-distance DWDM laser on a router card injects a signal into the WDM system, which travels to the router at the other end of the link. "Often people refer to this as an alien wavelength; what we're trying to do is make this into a friendly wavelength," explained Stefan Voll, head of solution sales management at NSN.
The partners have already demonstrated how this might work. The Norwegian Research Network Uninett has successfully tested a Juniper coloured OTU-2 interface on a T-series core router connected to NSN's hiT7300 WDM platform, and managed by the latter's Transport Network Management System (TNMS). |
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