Cisco 3020 - Catalyst Blade Switch Configuration Manual page 48

Cisco catalyst blade switch 3020 for hp software configuration guide, rel. 12.2(25)sef1
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Design Concepts for Using the Switch
DSCP marking priorities on these switches. For high-speed IP forwarding at the distribution layer,
connect the switches in the access layer to a Gigabit multilayer switch with routing capability, such
as a Catalyst 3750 switch, or to a router.
The first illustration is of an isolated high-performance workgroup, where the blade switches are
connected to Catalyst 3750 switches in the distribution layer. Each blade switch in this configuration
provides users with a dedicated 1-Gbps connection to network resources. Using SFP modules also
provides flexibility in media and distance options through fiber-optic connections.
Figure 1-1
Blade Server
Server aggregation
centralizing physical security and administration of your network. For high-speed IP forwarding at
the distribution layer, connect the switches in the access layer to multilayer switches with routing
capability. The Gigabit interconnections minimize latency in the data flow.
QoS and policing on the blade switches provide preferential treatment for certain data streams. They
segment traffic streams into different paths for processing. Security features on the blade switch
ensure rapid handling of packets.
Fault tolerance from the server racks to the core is achieved through dual homing of servers
connected to the blade switches, which have redundant Gigabit EtherChannels.
Using dual SFP module uplinks from the blade switches provides redundant uplinks to the network
core. Using SFP modules provides flexibility in media and distance options through fiber-optic
connections.
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
1-12
High-Performance Workgroup (Gigabit-to-the-Blade Server)
Catalyst 3750
switches
Blade Switches
Blade Server
(Figure
1-2)—You can use the switches to interconnect groups of servers,
Chapter 1
Overview
OL-8915-01

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