–> Bridge Assurance is one of the STP features that is used to avoid switching loops in your network. –> Bridge Assurance is supported on both Nexus OS and Cisco IOS. –> By default Bridge Assurance is enabled globally but not activated on the interfaces.

How do I remove vPC from Nexus?

Delete a Cisco vPC

  1. Log in to the Cisco Nexus switch.
  2. To start the configuration, enter: config terminal.
  3. To remove an appropriate Ethernet port as members of the vPC, enter: interface ethernet < port_number >
  4. To activate the channel number, enter:: no channel group < channel_number > mode active.
  5. To delete the vPC, enter:

What is supervisor in Nexus?

The Cisco Nexus 7000 Series Supervisor Modules are designed to deliver scalable control-plane and management functions for the Cisco Nexus 7000 Series chassis. The fully distributed forwarding architecture allows the supervisor to support transparent upgrades to I/O and fabric modules with greater forwarding capacity.

How do I change priority role in vPC?

Use Case Scenario for vPC Role Change

  1. Role change request—When you want to change the roles of the peer devices in a vPC domain.
  2. Primary switch reload—When the devices comes up after a reload and roles are defined, you can use the hitless vPC role change feature to restore the roles.

What is spanning-tree Bridge?

The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them.

What does spanning-tree port type network do?

spanning-tree port type (default global) Configures all switch interfaces as edge/network/normal ports. These ports can be connected to any type of device.

How do I know if my Nexus is vPC?

We can perform a final check on our vPC using the show vpc command:

  1. N5k-Primary# show vpc. Legend:
  2. Peer status : peer adjacency formed ok.
  3. vPC keep-alive status : peer is alive.
  4. Configuration consistency status : success.
  5. Per-vlan consistency status : success.
  6. Type-2 consistency status : success.
  7. 1 Po23 up 10.

What is difference between vPC and port channel?

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 hap reset Cisco?

system hap-reset Enables the Supervisor Reset HA policy.

How do I allow VLAN in vPC peer link?

Procedure

  1. Log in to the primary Cisco Nexus series switch.
  2. To run the configuration, type: Switch-A# config terminal.
  3. To specify the port channel, type: Switch-A(config)# interface port-channel
  4. To add the VLANs, type: Switch-A(config)# switchport trunk allowed vlan add VLAN_IDs.

What is vPC auto recovery?

vPC auto-recovery becomes effective command only when vPC role is secondary. In order to change to secondary state, a pair of vPC devices need synchronize. Even if one of a pair vPC devices fails boot after a power cut, vPC auto-recovery does not work.

What is bridge assurance in Nexus OS?

–> Bridge Assurance helps to avoid switching loop because of unidirectional link failures or any other reason. –> Bridge assurance only works on RPVST and MSTP. –> Bridge Assurance is supported on both Nexus OS and Cisco IOS. –> By default Bridge Assurance is enabled globally but not activated on the interfaces.

How do I enable or disable bridge assurance?

Bridge Assurance is enabled by default and can only be disabled globally. Also, Bridge Assurance can be enabled only on spanning tree network ports that are point-to-point links. Finally, both ends of the link must have Bridge Assurance enabled.

What’s new in the Nexus 7000 series NX-OS interfaces?

See the Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide , for information on creating Layer 2 interfaces. Cisco has added extensions to STP that enhances loop prevention, protects against some possible user misconfigurations, and provides better control over the protocol parameters.

How to display information about the VPC in Cisco Nexus 7000 series?

You can use the show spanning-tree command to display information about the vPC, when that feature is enabled. See the Cisco Nexus 7000 Series NX-OS Layer 2 Switching Configuration Guide, Release 4.x for an example. Note We recommend that you configure the ports on the downstream devices as STP edge ports.