Cisco Cisco Virtual Security Gateway for Nexus 1000V Series Switch Anwendung

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At-A-Glance
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Security and Compliance for Virtual Computing
Cisco Virtual Security Gateway (VSG) for Cisco Nexus® 1000V Series Switches 
delivers security, compliance, and trusted access for virtual data center and cloud 
computing environments.
The Virtual Computing Security Challenge
As virtualization continues its rapid penetration of information technology infrastructure, 
security, data protection, and privacy compliance rules, historically formulated for the 
physical server, can be compromised (Figure 1). With virtualization enabling multiple 
operating systems to share a single physical server, a way to replicate traditional 
security and segmentation for virtualized servers is required. Attributes of enterprise 
private cloud and public cloud architectures include:
•  Multiple lines of business or tenants, each of which requires a protected and trusted 
virtual computing environment
•  Workload elasticity, in which virtual servers are rapidly instantiated to address 
increased workloads and periodically stopped or removed to support data center 
efficiency and green computing
•  An elevated requirement for high availability
Figure 1.  Virtualization Creates Obscured and Uncertain Security Boundaries
Web Zone
App Zone
VDI Zone
Staging Zone
QA Zone
Dev Zone
Lab Zone
Partner Zone
HR Zone
Finance Zone
Mfg Zone
R&D Zone
Data Center Segments | LoBs | Tenants
Shared Computing Infrastructure
Uncertain Security Boundaries
Cisco VSG Solution
Cisco VSG for Cisco Nexus 1000V Series Switches is a virtual appliance that delivers 
security and compliance for virtual computing environments. Cisco VSG uses virtual 
network service data path (vPath) technology embedded in the Cisco Nexus 1000V 
Series virtual Ethernet module (VEM), offering transparent insertion, efficient deployment, 
and very high performance with vPath-based distributed enforcement of packets  
(Figure 2).
Cisco VSG works with the Cisco Nexus 1000V virtual supervisor module (VSM) and with 
the new Cisco Prime Network Services Controller. Together they allow security, network, 
and server teams to collaborate while simultaneously helping ensure administrative 
segregation to meet compliance and audit requirements and reduce administrative 
errors. Security team continues to be responsible for creating and managing security 
profiles through the Cisco Prime Network Services Controller.
Cisco VSG supports dynamic virtualization environments. Security profiles are bound to 
Cisco Nexus 1000V Series port profiles. The Cisco Nexus 1000V Series manages and 
enforces port and security profiles for each virtual machine virtual Ethernet port. A virtual 
machine can be repurposed by assigning a different port and security profile. Similarly, 
as VMware vMotion operations move virtual machines across physical servers, the Cisco 
Nexus 1000V Series helps ensure that port and security profiles follow them. Security 
enforcement and monitoring remains transparent to VMware vMotion events.
Main Benefits of Cisco VSG
•  Reduced IT costs by enabling secure virtualized workloads across multiple tenants 
on a shared computing infrastructure for virtual data centers or for private or public 
cloud computing environments
•  Comprehensive support for security for changing workloads
•  Enhanced compliance with industry standards and government regulations
•  Simplified auditing processes for virtualized environments