Cisco思科数据中心网络架构和设计指南.pdf

数据中心网络架构和设计指南
Session Number
Presentation_ID © 2005 Cisco Systems, Inc. All rights reserved. Cisco Confidential 1
目录
数据中心网络架构
• Server Farm Architecture Overview
• Design Requirements in the Server Farm
• Access Layer Design Models
• Density and Scalability Implications
• Scaling B/W with Gigabit EtherChannel® and 10GE
• Spanning Tree Design and Scalability
• High Availability in the DC
• Summary
Session Number
Presentation_ID © 2005 Cisco Systems, Inc. All rights reserved. Cisco Confidential 2
数据中心服务器群交换架构
DC-2101
11127_05_2005_c2 © 2005 Cisco Systems, Inc. All rights reserved. 3
定义数据中心接入层
2层, 3层服务器和主机连接
• L2 and L3
requirements Enterprise Core
• Dual and single
attached
DC Core
• High performance,
low latency L2
switching
• Mix of over-
subscription DC Aggregation
requirements
• Many uplink options
• STP processing
for configured
VLANs only
• Utilizes services in
the aggregation layer
Mainframe
Blade
Blade w/ OSA
L2 w/ Clustering Chassis w/ L3
Chassis w/
and NIC Teaming Integrated Access
Pass Thru Switch
DC Access
Session Number
Presentation_ID © 2005 Cisco Systems, Inc. All rights reserved. Cisco Confidential 4
定义数据中心汇聚层
提供共享的应用/安全服务
Enterprise Core
• Aggregates access
uplinks into DC core
• Large STP
processing load
• Provides advanced
application and
security functions via
service modules Service Modules
• Maintains session
state and connection
tables for redundancy
• What are these
services?
Mainframe
Blade
Blade w/ OSA
L2 w/ Clustering Chassis w/ L3
Chassis w/
and NIC Teaming Integrated Access
Pass Thru Switch
DC Access
Session Number
Presentation_ID © 2005 Cisco Systems, Inc. All rights reserved. Cisco Confidential 5
定义数据中心汇聚层
集成服务
Layer 4–7 Services: FW, SLB, SSL, IDS
• Application and security services can be deployed as:
Appliances
Service blades
• Service blades such as firewall blades an