===== Nexus =====

=== Configuring vPC ===
This section will cover how to configure virtual port channels (vPC) on a Nexus switch. I will be using a real Nexus 5010, but this can be done on any Nexus switch.

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  * vPC peers require (in order):
    - Same domain number, limit of one per switch
    - A peer link
    - A keepalive link
    - One or more vPC member ports

  - Enable NX-OS features
    - Nexus(config)# **feature vpc**
    - Nexus(config)# **feature lacp**
  - Configure domain number on each switch
    - Nexus(config)# **vpc domain 1**
    - Nexus(config-vpc-doamin)# **peer-keepalive destination 192.168.1.185** (management VRF on other switch)
  - Configure port channel interfaces
    - Nexus(config)# ** int e 1/17-18**
    - Nexus(config-if)# **channel-group 1 mode active**
    - Nexus(config)# **int po 1**
    - Nexus(config-if)# **switchport**
    - Nexus(config-if)# **switchport mode trunk**
    - Nexus(config-if)# **vpc peer-link**
  - Repeat on other switch
  - Verification commands
    - **show port-channel summary**
    - **show vpc peer**