| How we tested Cisco's ASR We assessed Cisco ASR 1000 performance with tests of unicast and multicast throughput and latency; high availability features, including failover and upgrades; and IPSec tunnel capacity. More Clear Choice Tests: Are open source virtual machines a viable alternative to products from VMware and Microsoft? We test Xen-based hypervisors from Citrix, Novell and Virtual Iron and found that this trio of VM products should be taken seriously by enterprise data center managers. Citrix XenServer is tops among Xen-based hypervisors XenServer's hardware support was second only to that in Novell's Xen implementation, which has a slight advantage because it runs on any hardware supported by the Novell SLES 10 Linux distribution. Novell SLES 10.2 Xen offers great promise Novell's SLES 10.2 with Xen 3.2 is part of its Linux product line and typically is managed by the company's ZenWorks products and services. Virtual Iron Xen offers topnotch security, policy controls Philosophically, Virtual Iron is different from the other hypervisors tested because it uses a hypervisor server farm managed through a direct-control application. January giveaways from Cisco Subnet and Microsoft Subnet
Up for grabs: Two Cisco training courses from Skyline-ATS worth up to $6,990, a Microsoft training course from New Horizons worth up to $2,500, 15 copies each of the hot book titles Microsoft SQL Server 2008 Management and Administration, IPv6 Security and Chained Exploits: Advanced Hacking Attacks. Get all the entry details here. | 
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