Cisco NX-OS Forwarding Architecture The Cisco NX-OS forwarding architecture is responsible for processing all routing updates and populating the forwarding information to all modules in the chassis. The Cisco NX-OS forwarding architecture consists of multiple components, as shown in Figure 6-6. Figure 6-6 Cisco NX-OS Forwarding Architecture The unicast routing information base (URIB) exists … Read more
Autonomous Systems An autonomous system (AS) is a portion of an internetwork under common administrative authority that is regulated by a particular set of administrative guidelines. Autonomous systems divide global external networks into individual routing domains, where local routing policies are applied. This organization simplifies routing domain administration and simplifies consistent policy configuration. Each autonomous … Read more
VDC Management When several departments share a single physical device and each department has its own administrator, it presents a security concern to share one administrator account with every department admin. VDC user roles comes to the rescue here. Using VDC user roles, each VDC can be managed by a different VDC administrator. An action … Read more
VDC Configuration Table 5-7 summarizes the NX-OS CLI commands related to basic VDC configuration and verification. Table 5-7 Summary of NX-OS CLI Commands for VDC Configuration and Verification Command Purpose show resource Displays the VDC resource configuration for the current VDC. show vdc [vdc-name] Displays the VDC configuration information. show vdc detail Displays the VDC status … Read more
VDC Architecture The Cisco NX-OS software provides the base upon which the VDCs are supported. Figure 5-5 shows NX-OS in VDC mode. Figure 5-5 NX-OS in VDC Mode At the heart of the NX-OS, are the kernel and infrastructure layer. The kernel supports all processes and all VDCs that run on the switch, but … Read more
VDC Types The use of VDCs with the Cisco Nexus 7000 Series Supervisor 2E or 3E modules allows a single Cisco Nexus 7000 Series switch to be partitioned into up to eight VDCs: the default VDC and seven additional VDCs. Another available choice is to create one admin VDC and eight additional VDCs. More than … Read more