Concept . Virtual Device Context (VDC) is a NX-OS technology that allows you to virtually separate a physical chassis. Its a pretty much a layer 1 virtualization similar concept to SDR in IOS XR or Contexts in ASA.
What is VDC in networking?
Overview. An organisation virtual data centre (VDC) network enables its virtual machines (VMs) to communicate with each other or to provide access to external networks. A single VDC can have multiple networks.
What is VDC and vPC?
Overview. An organisation virtual data centre (VDC) network enables its virtual machines (VMs) to communicate with each other or to provide access to external networks. A single VDC can have multiple networks.
What is vPC in switch?
vPC ( Virtual Port-Channel ), also known as multichassis EtherChannel (MEC) is a feature on the Cisco Nexus switches that provides the ability to configure a Port-Channel across multiple switches (i.e. vPC peers). vPC is similar to Virtual Switch System (VSS) on the Catalyst 6500s.
What is difference between vPC and VSS?
3) VSS can support L3 port-channels across multiple chassis,however, vpc is used for L2 port-channels only. 4) VSS supports both PAgP and LACP,however, VPC only supports LACP. 5) VSS mainly used for campus environment whereas VPC is used for Data Center environment.
How do you create a VDC?
- Log in to the default VDC with a username that has the network-admin role.
- Enter configuration mode and create the VDC using the default settings. ...
- (Optional) Allocate interfaces to the VDC. ...
- Verify the VDC configuration. ...
- Switch to the new VDC and enter the VDC admin user account password.
What does VDC stand for?
VDC stands for vehicle dynamics control , and is the name of the electronic stability control system on Nissan and Infiniti vehicles. Electronic stability control is a safety feature that is designed to prevent skids and has been required on all cars and light trucks in the U.S. since the 2012 model year.
How do I access VDC admin?
Enter the system admin-vdc command after bootup . The default VDC becomes the admin VDC. All the nonglobal configuration in the default VDC is lost after you enter this command. This option is recommended for existing deployments where the default VDC is used only for administration and does not pass any traffic.
How many VDC can be created in Nexus?
You can create up to four nondefault VDCs and 1 admin VDC on Supervisor 2 modules. If VDC1 is the default VDC, you can create three nondefault VDCs.
How does VDC work in Nexus?
The Nexus 7000 NX-OS software supports Virtual Device Contexts (VDCs), VDC(s) allow the partitioning of a single physical Nexus 7000 device into multiple logical devices . This logical separation provides the following benefits: Administrative and management separation. Change and failure domain isolation from other ...
What is the purpose of vPC?
Amazon Virtual Private Cloud (Amazon VPC) enables you to launch AWS resources into a virtual network that you’ve defined . This virtual network closely resembles a traditional network that you’d operate in your own data center, with the benefits of using the scalable infrastructure of AWS.
What is vPC role?
The roles are there for control plane functionality . For spanning-tree the the VPC primary forwards the BPDU’s unless you are using a peer-switch config whereby both devices forward BPDU’s & both devices become the root. ... If the role priority is default, then reapply the default.
Why is STP used?
Spanning Tree Protocol (STP) is a Layer 2 protocol that runs on bridges and switches. ... The main purpose of STP is to ensure that you do not create loops when you have redundant paths in your network . Loops are deadly to a network.
What is the benefit of VSS?
VSS increases operational efficiency by simplifying the network , reducing switch management overhead by at least 50 percent. – Single configuration file and node to manage. Removes the need to configure redundant switches twice with identical policies.
What is VSS mode?
The Cisco Catalyst 6500 Series Virtual Switching System (VSS) allows the clustering of two or more physical chassis together into a single, logical entity . This technology allows for enhancements in all areas of network design, including high availability, scalability, management, and maintenance.
What is VSS in Nexus?
VSS ( Virtual Switching System )
Compared to the vPC feature of the Nexus, the unified control plane aspect of VSS mode allows for the full system capabilities to be used on a multi-chassis EtherChannel, so L3 EtherChannels, MPLS awareness, full QoS capabilities, and other features are usable across both of the systems.
