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
Routing Algorithms Routing algorithms determine how a router gathers and reports reachability information, how it deals with topology changes, and how it determines the optimal route to a destination. Various types of routing algorithms exist, and each algorithm has a different impact on network and router resources. Routing algorithms use a variety of metrics that … 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
Cisco Nexus Switch Functional Planes The Cisco Nexus switch by design divides the traffic it manages into three functional components or planes: The Cisco NX-OS device provides control plane policing (CoPP), which protects the control plane and separates it from the data plane, thus ensuring network stability, reachability, and packet delivery. The CoPP feature allows … 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