Contents
- 1 What is the difference between a port channel and a trunk?
- 2 Should spanning tree be enable on trunk port?
- 3 What does spanning tree port type edge do?
- 4 How do you check if spanning-tree is working?
- 5 What are the RSTP port states?
- 6 Which is spanning tree port type do you use?
- 7 Do you need global configuration command for spanning-tree portfast?
- 8 What happens when an interface is added to a port channel?
What is the difference between a port channel and a trunk?
Trunking and port channels function as follows: Port channels enable several physical links to be combined into one aggregated logical link. Trunking enables a link to carry (trunk) multiple VLAN traffic.
Should spanning tree be enable on trunk port?
It is recommended not to enable the BPDU Guard feature on a trunk port that forms the STP topology.
What is spanning tree port Fast edge?
PortFast immediately brings an interface configured as an access or trunk port to the forwarding state from a blocking state, bypassing the listening and learning states. An interface with PortFast enabled goes through the normal cycle of spanning-tree status changes when the switch is restarted.
What does spanning tree port type edge do?
To configure an interface connected to a host as an edge port, which automatically transitions the port to the spanning tree forwarding state without passing through the blocking or learning states, use the spanning-tree port type edge command.
How do you check if spanning-tree is working?
Checking the Status of Spanning-Tree Instance Interfaces
- To check the status of spanning-tree instance interface, use the show interfaces command: user@host> show interfaces interface-name.
- You can determine the status of the interface as follows: If the BPDU Error field is none, the interface is enabled.
What is spanning-tree Portfast trunk?
spanning-tree portfast allows the ports to skip the blocking to fowarding states and go immediately to forwarding. The spanning-tree portfast trunk does the same but for trunk connections.
What are the RSTP port states?
RSTP can be described by three port states: Discarding, Learning, and Forwarding. The Disabled, Blocking, and Listening states described by STP have been combined into the Discarding state in RSTP.
Which is spanning tree port type do you use?
It is recommended that switch-to-switch links are configured with the spanning-tree port type normal command. The one exception is the vPC peer-link which is recommended to configure with the spanning-tree port type network command.
Which is the port type for edge trunk?
C and D interfaces facing A and B (L3 device facing ) are port type edge trunk and interfaces n C and D facing E are simply set for default. Need any doc for deep drive.
Do you need global configuration command for spanning-tree portfast?
If you place spanning-tree portfast on the access port, you do not need the global configuration command. The global configuration command is great for when you want every access port to have spanning-tree portfast enabled.
What happens when an interface is added to a port channel?
When an interface is added to an operational port-channel, the interface resets but the port-channel and existing interfaces are not reset. When a port-channel is reconfigured as a vPC, the port-channel and its interface resets.