Category: Datacenter

[DC] NX-OS

  • VDC
  • VPC
  • Fabricpath
  • Fabric Extenders (FEX)
  • OTV

VDC ( Virtual Device Context )

https://www.cisco.com/c/en/us/products/collateral/switches/nexus-7000-10-slot-switch/White_Paper_Tech_Overview_Virtual_Device_Contexts.html

https://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/virtual_device_context/command/reference/vdc_commands.html

A VDC can be used to virtualize the device itself, presenting the physical switch as multiple logical devices. Within that VDC it can contain its own unique and independent set of VLANs and VRFs. Each VDC can have assigned to it physical ports, thus allowing for the hardware data plane to be virtualized as well. Within each VDC, a separate management domain can manage the VDC itself, thus allowing the management plane itself to also be virtualized.

Create a new VDC:

N7k1(config)# vdc N5K1
N7k1(config-vdc)#
N7k1# switchto vdc N5K1

Show allocated interfaces:

switch# show vdc membership

vdc_id: 0 vdc_name: switch interfaces:

        Ethernet2/1           Ethernet2/2           Ethernet2/3
        Ethernet2/4           Ethernet2/5           Ethernet2/6
        Ethernet2/7           Ethernet2/8           Ethernet2/9
        Ethernet2/10          Ethernet2/11          Ethernet2/12
        Ethernet2/13          Ethernet2/14          Ethernet2/15
        Ethernet2/16          Ethernet2/17          Ethernet2/18
        Ethernet2/19          Ethernet2/20          Ethernet2/21
        Ethernet2/22          Ethernet2/23          Ethernet2/24
        Ethernet2/25          Ethernet2/26          Ethernet2/27
        Ethernet2/28          Ethernet2/29          Ethernet2/30
        Ethernet2/31          Ethernet2/32          Ethernet2/33
        Ethernet2/34          Ethernet2/35          Ethernet2/36
        Ethernet2/37          Ethernet2/38          Ethernet2/39
        Ethernet2/40          Ethernet2/41          Ethernet2/42
        Ethernet2/43          Ethernet2/44          Ethernet2/45
        Ethernet2/48

vdc_id: 1 vdc_name: N5K1

        Ethernet2/47

Allocate interfaces:

N7k1(config)#vdc N5K1
N7k1(config-vdc)#allocate interface e2/1 - 12

VPC ( Virtual Port Channel )

https://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/configuration_guide_c07-543563.html

LAB IV ( vPC – virtual Port-channels )

(more…)

[DC] Nexus Models

Nexus 7000/7700Nexus 5500/5600Nexus 2000 ( FEX )
1/10/40/100Gbps1/10/40Gbps1/10/40Gbps Fabric Extender
Layer2 and Layer3 LAN switchingLayer2 and Layer3 LAN switchingNo local switching (Traffic is done by parent)
FCoE SAN SwitchingFCoE SAN Switching
No native FC portsNative FC Ports
Highly redundant
SSO & ISSU

https://www.cisco.com/c/en/us/products/switches/nexus-7000-series-switches/models-comparison.html

https://www.cisco.com/c/en/us/products/switches/nexus-5000-series-switches/models-comparison.html

https://www.cisco.com/c/en/us/products/switches/nexus-2000-series-fabric-extenders/models-comparison.html

Starting CCNA: Datacenter

Next up, Datacenter!

200-150

  • Data Center Physical Infrastructure
  • Basic Data Center Networking Concepts
  • Advanced Data Center Networking Concepts
  • Basic Data Center Storage
  • Advanced Data Center Storage

https://learningcontent.cisco.com/cln_storage/text/cln/marketing/exam-topics/200-150-dcicn.pdf

200-155

  • Unified Computing
  • Network Virtualization
  • Cisco Data Center Networking Technologies
  • Automation and Orchestration
  • Application Centric Infrastructure

https://learningcontent.cisco.com/cln_storage/text/cln/marketing/exam-topics/200-155-dcict.pdf