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Archived Networking Articles
09 Jan 2012
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How to Use Oracle Solaris 11 Network Virtualization and Resource Management [25225]
Restricting Application Network Traffidc

Users can now monitor, control, guarantee, and reconfigure network infrastructure to provide applications with the required data connections using Oracle Solaris 11 Network Virtualization and Resource Management. Duncan Hardie's post on Oracle tech network showing how to apply bandwidth limits to both data links and user-defined flows to manage network traffic. Hardie also shows how data link bandwidth limits all traffic through that data link, whereas bandwidth limits applied to flows can be based on network packet characteristics. These technologies allow users to create a flexible and controlled environment to meet all their network resource management needs.
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12 Dec 2011
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Integration of LDoms Networking with Networking Enhancements in Solaris 11 [25047]
Focus on Behavior of LDoms Virtual in a Solaris 11 Service Domain

The network stack for Oracle Solaris 11 has been substantially re-architected in an effort known as Project Crossbow, a main goal of which is to virtualize the hard NICs into Virtual NICs (VNICs) to provide more effective sharing of networking resources. Raghuram Kothakota blogs on how LDoms networking is integrated with all the networking enhancements in S11, mainly with project Crossbow. His post is a high-level view of how LDoms virtual switch in an S11 service domain and LDoms virtual network device in an S11 Guest domain.
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04 Oct 2011
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IEEE Task Force Developing Standard for 100GE Backplanes [24707]
Deadline for Final Standard Is May 2014

The IEEE has approved an amendment to the 802.3 standard for 100GE networking called P802.3bj, which will enhance the physical layer in 100GE devices and complement the existing work that has been done in the 802.3ba-2010 standard, which was approved as a standard for 40Gb/sec and 100Gb/sec Ethernet devices last June, reports Timothy Prickett Morgan in The Register. A task force of industry vendors working on the P802.3bj extensions for 100GE is focused on the use of Ethernet as a backplane interconnect inside of blade servers and across racks in 1 meter or shorter hops and in copper cables that are 5 meters or shorter for inter-rack and cross-rack connections.
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27 Sep 2011
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Integrated IP Equals Total Systems for Customers [24651]
Oracle President Mark Hurd Explains Company Strategy

"What you're seeing from Oracle is, we're integrating more of our IP" -- intellectual property -- "into total systems that bring our customers significant performance and cost advantages," said Oracle President Mark Hurd as reported in a story by Brandon Bailey for mercurynews.com. Hurd is becoming increasingly visible as a member of the Oracle executive team to the extent that outsiders are crediting him with adding strength to Oracle's hardware operations which John Fowler heads up, even though Hurd's province at Oracle is sales.
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28 Jul 2011
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Andy Bechtolsheim Casts His Vote for Merchant Silicon [24388]
The Stuff that 10GB Ethernet Switches Are Made of

Merchant silicon gets Andy Bechtolsheim's vote as the technology for Ethernet switches. He writes that throughput and cost-performance factors make merchant silicon the winner, hands down. This is reflected in the fact that, according to him, most of the 10 Gigabyte (GB) switches manufactured in the current year are based on merchant silicon. Given the network scalability demands of contemporary datacenters, Bechtolsheim writes, only 10 GB Ethernet will do as the switch. He also comments on the features of Arista's 7050-64S and compares them to those of Cisco's Catalyst 6509, asserting that the features gap between the two is closing.
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11 Jul 2011
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Do We Really Want 100Gig Ethernet? [24321]
Alan Stevens Thinks the Answer Is a Resounding Yes

"Do we really want 100Cig Ethernet?" asks Alan Stevens in "The Register," and he answers his rhetorical question with a resounding yes, citing two principal reasons: The need to support increasingly bandwidth-greedy applications, such as video streaming and private cloud computing, and the growth in server virtualization and the hardware consolidation that goes with it is an even more compelling consideration, he writes. He then goes on to elaborate, writing, " ... the more virtual machines a physical server has to host, the smaller the share of the available network bandwidth each is likely to get, even when it is sliced up and dynamically allocated using sophisticated virtual networking software." So, do we need it, Stevens says, yes, and soon, perhaps as early as 2015.
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