Руководство По Проектированию для Cisco Cisco Nexus 5010 Switch
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VDC Context Types
The four VDCs are not equal. The default VDC (VDC 1) is used to manage the other VDCs. The network-
administrator on the master or default VDC can:
●
Create and destroy other VDCs.
●
Allocate resources (such as physical interfaces, for example) to VDCs.
●
Enter other VDCs.
Users of VDCs numbered 2 through 4 do not enjoy these privileges. They cannot change resource allocations, nor
can they change VDC context. The default user role for VDCs 2-4 is vdc-admin. (For more information on roles,
please see Ch
apter 2, “Cisco NX-OS Software Command-Line Interface Primer.”)
As Figure 1 shows, each VDC is accessible through the mgmt0 interface provided by each supervisor. The VRF
management on each VDC has an IP address on the virtual Layer 2 segment that connects the mgmt0 interface
to all VDCs.
Figure 1. Hierarchy of VDCs in a Cisco Nexus 7000 and Management Access (via VRF)
VDC Port Allocation
The physical ports of a Cisco Nexus 7000 Series Switch can be partitioned and assigned to one of the four VDCs.
Each port can belong to one and only one VDC at a time.
The Cisco 10/100/1000 Gigabit Switch ports can be individually assigned to a VDC.
The 10 Gigabit Ethernet ports can be assigned to VDCs in groups of four, as shown in Figure 2.