Data Center I/O Consolidation Topology
The following figure shows a typical I/O consolidation scenario for the Cisco Nexus device.
Figure 4: I/O Consolidation Topology
The Cisco Nexus device connects to the server ports using FCoE. Ports on the server require converged
network adapters. For redundancy, each server connects to both switches. Dual-port CNA adapters can be
used for this purpose. The CNA is configured in active-passive mode, and the server needs to support
server-based failover.
On the Cisco Nexus device, the Ethernet network-facing ports are connected to two Catalyst 6500 Series
switches. Depending on required uplink traffic volume, there may be multiple ports connected to each Catalyst
6500 Series switch, configured as port channels. If STP is enabled in the data center LAN, the links to one of
the switches will be STP active and the links to the other switch will be STP blocked.
The SAN network-facing ports on the Cisco Nexus device are connected to Cisco MDS 9000 Family switches.
Depending on the required traffic volume, there may be multiple Fibre Channel ports connected to each MDS
9000 Family switch, configured as SAN port channels.
Supported Standards
The following table lists the standards supported by the Cisco Nexus devices.
Cisco Nexus 5500 Series NX-OS Fundamentals Configuration Guide, Release 7.x
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Overview
Data Center I/O Consolidation Topology
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