System News
back1 2 3 4 5 6 7 8 9 10 11 next
Archived Networking Articles
01 Oct 2014
open to premium members only
Oracle Virtual Networking Support for OpenStack [38557]
New plug-in extends Oracle Virtual Networking benefits to OpenStack-based cloud deployments

The Oracle Virtual Networking OpenStack Neutron plug-in, announced today at Oracle OpenWorld, is based on the OpenStack Icehouse release and enables all of Oracle's software-defined networking (SDN) and network fabric capabilities to be created, provisioned and managed by the OpenStack framework. Oracle SDN now allows OpenStack-based cloud deployments to virtually eliminate VLAN exhaustion and bandwidth bottlenecks experienced with traditional networking, providing extreme scalability and security on the industry's fastest network fabric.

Oracle Virtual Networking delivers a wire-once, software-defined fabric for a heterogeneous data center. This technology virtualizes the SAN and LAN infrastructures by defining connectivity in software, giving users the flexibility and agility needed for cloud-enabled Infrastructure as a Service and Platform as a Service deployments. By consolidating both SPARC and x86 systems on a single fabric, Oracle Virtual Networking can reduce infrastructure complexity by 70 percent and cut capital expenditures by up to 50 percent.

Oracle SDN technology, part of the Oracle Virtual Networking portfolio of products, allows the dynamic deployment of thousands of completely segregated L2 networks on the fabric, allowing customers to dynamically scale their infrastructure and provide enhanced security.
(Get More Information . .)

14 Aug 2014
open to premium members only
VXLAN in Solaris 11.2 [37792]
By Venugopal Iyer

Venu writes, "VXLAN, or Virtual eXtensible LAN, is essentially a tunneling mechanism used to provide isolated virtual Layer 2 (L2) segments that can span multiple physical L2 segments. Since it is a tunneling mechanism it uses IP (IPv4 or IPv6) as its underlying network which means we can have isolated virtual L2 segments over networks connected by IP. This allows Virtual Machines (VM) to be in the same L2 segment even if they are located on systems that are in different physical networks. Some of the benefits of VXLAN include:

  • Better use of resources, i.e. VMs can be provisioned on systems, that span different geographies, based on system load.
  • VMs can be moved across systems without having to reconfigure the underlying physical network.
  • Fewer MAC address collision issues, i.e. MAC address may collide as long as they are in different VXLAN segments.

Isolated L2 segments can be supported by existing mechanisms such as VLANs, but VLANs don't scale; the number of VLANs are limited to 4094 (0 and 1 are reserved), but VXLAN can provide upto 16 million isolated L2 networks..."
(Get More Information . .)

15 Jul 2014
open to premium members only
July 2014 Critical Patch Update Released [37406]
By Eric P. Maurice

Eric writes, "Oracle today released the July 2014 Critical Patch Update. This Critical Patch Update provides 113 new security fixes across a wide range of product families including: Oracle Database, Oracle Fusion Middleware, Oracle Hyperion, Oracle Enterprise Manager Grid Control, Oracle E-Business Suite, Oracle PeopleSoft Enterprise, Oracle Siebel CRM, Oracle Industry Applications, Oracle Java SE, Oracle Linux and Virtualization, Oracle MySQL, and Oracle and Sun Systems Products Suite..."
(Get More Information . .)

11 Jul 2014
open to premium members only
What Can You Do With Data Link Multipathing (DLMP)? [37300]
By Rick Ramsey

Rick writes, "Bjoern Rost, Oracle ACE, provides a nice explanation of a Solaris feature that didn't get a lot of attention when it was released: Data Link Multipathing (DLMP) and DLMP aggregation. DLMP aggregation allows you to combine virtual network interfaces from different physical network interfaces into high availability clusters. You can also use these clusters to improve load balancing, as Bjoern explains in his blog post.

Orgad likes DLMP, too. So much, in fact, that he took a break from reconfiguring the International Space Station so his kids could control it from their XBox, and wrote an article explaining how to apply DLMP to a virtual network. Two articles, in fact..."
(Get More Information . .)

08 Jul 2014
open to premium members only
Network Virtualization High Availability [37299]
By Orgad Kimchi

"How to add high availability to the network infrastructure of a multitenant cloud environment using the DLMP aggregation technology introduced in Oracle Solaris 11.1."

Orgad writes, "This article is Part 1 of a two-part series. In Part 1, we will cover how to implement network HA using datalink multipathing (DLMP) aggregation technology, which was introduced in Oracle Solaris 11.1.

In Part 2 of this series, we will explore how to secure the network and perform typical network management operations for an environment that uses DLMP aggregations.

Once we virtualize a network cloud infrastructure using Oracle Solaris 11 network virtualization technologies - such as virtual network interface cards (VNICs), virtual switches, load balancers, firewalls, and routers - the network itself becomes an increasingly critical component of the cloud infrastructure..."
(Get More Information . .)

20 Jun 2014
open to premium members only
More on OpenStack Networking by Ronen Kofman [36982]
By Chris Kawalek

Chris writes," Our spotlight this week is on the latest entry in a series by Ronen Kofman about OpenStack networking:

Diving into OpenStack Network Architecture - Part 3 - Routing

The previous entries in that series are really great reads, too:

Diving into OpenStack Network Architecture - Part 1 Diving into OpenStack Network Architecture - Part 2 - Basic Use Cases
(Get More Information . .)

 
back1 2 3 4 5 6 7 8 9 10 11 next