Cisco Cisco ASA 5585-X Adaptive Security Appliance 백서
Cisco and Public Sector Cyberdefense
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Response and
Recovery in the
Data Center
Recovery in the
Data Center
Response and Recovery in the Data Center
The concept of virtualization just discussed is a one-to-many model, where a single physical resource is made to look like many logical resources.
Another important innovation for the data center is the reverse concept, making multiple physical resources look like one logical resources. This can
be accomplished with the
Another important innovation for the data center is the reverse concept, making multiple physical resources look like one logical resources. This can
be accomplished with the
Virtual Switching System (VSS) 1440 for the Cisco Catalyst 6500 Series switch.
The initial release of VSS 1440 allows for the merging of two physical Cisco Catalyst 6500 Series switches together into a single, logically managed
entity. The key enabler of the Cisco Virtual Switching System technology is a special link that binds the two chassis together, called a Virtual Switch
Link (VSL). The VSL carries special control information and encapsulates every frame with a header that passes across this link. (See Figure 5.)
entity. The key enabler of the Cisco Virtual Switching System technology is a special link that binds the two chassis together, called a Virtual Switch
Link (VSL). The VSL carries special control information and encapsulates every frame with a header that passes across this link. (See Figure 5.)
Figure 5 Logical Architecture of Virtual Switching System
The primary benefits of this logical grouping include:
• Increased availability and resiliency using interchassis SSO and NSF
• Increased operational efficiency of a simplified network architecture using virtualization
• Increased forwarding performance using Multichassis EtherChannel (MEC)
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