Dell POWEREDGE M1000E - Manual (Page 71)

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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
OL-13270-03
Chapter 1 Overview
Where to Go Next
When an end station in one VLAN needs to communicate with an end station in another VLAN, a router
or Layer 3 switch routes the traffic to the destination VLAN. In this network, the switch stack is
providing inter-VLAN routing. VLAN access control lists (VLAN maps) on the switch stack or switch
provide intra-VLAN security and prevent unauthorized users from accessing critical areas of the
network.
In addition to inter-VLAN routing, the multilayer switches provide QoS mechanisms such as DSCP
priorities to prioritize the different types of network traffic and to deliver high-priority traffic. If
congestion occurs, QoS drops low-priority traffic to allow delivery of high-priority traffic.
Cisco CallManager controls call processing and routing. Users with workstations running Cisco
SoftPhone software can place, receive, and control calls from their PCs. Using Cisco CallManager
software and Cisco SoftPhone software integrates telephony and IP networks, and the IP network
supports both voice and data.
With the multilayer switches providing inter-VLAN routing and other network services, the routers
focus on firewall services, Network Address Translation (NAT) services, voice-over-IP (VoIP) gateway
services, and WAN and Internet access.
Figure 1-3 Switch Stack in a Collapsed Backbone
Where to Go Next
Before configuring the switch, review these sections for startup information:
• Chapter 2, “Using the Command-Line Interface”
• Chapter 3, “Assigning the Switch IP Address and Default Gateway”
201914
Campus
core
Catalyst
6500 switches
Blade switch
StackWise
switch stacks
Blade server
enclosures