Comments on: Virtualization This Week http://blogs.cisco.com/datacenter/virtualization_this_week/ Tue, 21 May 2013 19:19:33 +0000 hourly 1 By: Bharat Patel http://blogs.cisco.com/datacenter/virtualization_this_week/#comment-11623 Bharat Patel Wed, 27 Aug 2008 21:07:18 +0000 http://blogs.cisco.com/how_do_you_use_wan_optimization#comment-11623 Cisco 4500 Switch or 6300: How many VM servers can one switch port run? please E-Mail me white pappers or config thank U

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]]> By: Vaughn Suazo http://blogs.cisco.com/datacenter/virtualization_this_week/#comment-10411 Vaughn Suazo Thu, 22 May 2008 19:35:30 +0000 http://blogs.cisco.com/how_do_you_use_wan_optimization#comment-10411 Security for Server Virtualization is important. Security for server virtualization not only includes known practices (patching, network fw/ips, logon security and monitor/audit) but also must take into consideration the mobility of virtual servers, ease of adding new VMs w/o installing new hardware in a rack and securing a new OS running on the hypervisor. Threats to be aware which increase risk to service availability, service integrity and service confidentiality:1.> Hypervisor-jacking – compromise Hypervisor OS (buffer-overflows attack) and gain administrative control of physical server2.> Rogue VM – Called VM sprawling, VM servers brought online to steal service or a compromised guest operating system brought online under the control of a remote-attacker.3.> Inter-VM traffic visibility – VMs connect w/in the physical sever via a Virtual network, not having visibility into server-to-server traffic increase risk of VMs compromising service of other VMs.Solutions require security in the server virtualization layer tightly integrated w/ the network based services. Point products will struggle as they can only address specific pain points and lack integration w/ network based services.Vaughn Suazo (Cisco CSE, CCIE 5109)

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]]> By: gmoney http://blogs.cisco.com/datacenter/virtualization_this_week/#comment-10408 gmoney Thu, 22 May 2008 19:35:30 +0000 http://blogs.cisco.com/how_do_you_use_wan_optimization#comment-10408 Doug,Have you investigated the use of wireless sensor networks in the data center to help provide valuable actionable”" data that can be used to proactively monitor and survey cooling?”

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]]> By: Doug Gourlay http://blogs.cisco.com/datacenter/virtualization_this_week/#comment-10409 Doug Gourlay Thu, 22 May 2008 19:35:30 +0000 http://blogs.cisco.com/how_do_you_use_wan_optimization#comment-10409 I think there is a definite possibility of integraton of these sensor nets. The other component we have also been investing in are thermal sensors on all of our infratructure platforms. Catalyt switches, MDS, etc. Not only broad-based sensors like inlet ambient temperature sensors on fan trays, but also discrete per-chip thermal sensors. This allows a wonderful granularity of thermal visibility, and also you can start being more predictive on MTBFs and such.

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]]> By: Doug Gourlay http://blogs.cisco.com/datacenter/virtualization_this_week/#comment-10410 Doug Gourlay Thu, 22 May 2008 19:35:30 +0000 http://blogs.cisco.com/how_do_you_use_wan_optimization#comment-10410 I think there is a definite possibility of integraton of these sensor nets. The other component we have also been investing in are thermal sensors on all of our infratructure platforms. Catalyt switches, MDS, etc. Not only broad-based sensors like inlet ambient temperature sensors on fan trays, but also discrete per-chip thermal sensors. This allows a wonderful granularity of thermal visibility, and also you can start being more predictive on MTBFs and such.

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