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On a switch network what does BPDU stand for?
Bridge Port Data Unit
With Cisco Switches and Routers what does "CDP" stand for?
Cisco Discovery Protocol.
In a dynamic Vlan what is a VMPS?
Vlan Membership Policy Server.
What is IEEE 802.1Q stand for?
It is the standard for Vlan Trunking. Cisco also supports ISL (Inter-Switch Link) a pre-standard to 802.1Q.
Where does IEEE 802.1Q incert the tag to indicate it is a trunk packet in the frame?
Between the source address and the length/type field.
With Cisco switch Vlan what is VTP? What is it used for?
Virtual Trunking Protocol. It is used to update Vlans across a switched network.
What are the modes for a switch running VTP?
Server, Client, Transparent.
How often does VTP send out advertisements?
Advertisements are sent every 5 min or whenever there is a change in the VTP domain.
What 2 things are required for a switch to update its vlan.dat file with a VTP advertisement?
The VTPs must be part of the same domain and the advertisement mus have a higher revision number.
What is it called when Cisco switches only send VTP updates out ports toswitches that are part of that VTP domain?
What VTP mode must a switch be in to configure pruning?
Pruning can only be enabled on switches that are VTP servers. NOT Client or Transparent.
By default what Vlan are all ports assigned to?
All ports by default are on Vlan 1
What are the default VTP values for
-VTP Domain name?
- -Enabled or Disabled
- -Version 1
With Switches what does STP stand for?
Spanning Tree Protocol.
What is IEEE 802.1D stand for?
It is the standard for STP.
What is IEEE 802.1W standard for?
It is the standard for RPSTP.
With switches what does RSTP stand for?
Rapid Spanning Tree Protocol
What is STP used for in a switch network?
Spanning Tree Protocol is used to stop redundant links between switches from causing a broadcast storm.
With STP how many Root bridges are there?
There is only one root bridge on a network segment.
What are the 3 types of STP ports?
What types of ports are on the root switch?
All ports on the root switch are Designated forwarding ports.
What types of STP ports are on non-root switches?
What is 802.1w standard?
802.1w is for RSTP
What is Spanning-tree path cost for 10Gbps?
What is Spanning-tree path cost for 100Mbps?
What is Spanning-tree path cost for 1Gbps?
What is Spanning-tree path cost for 10Mbps?
What is 802.1d STP normal convergence time?
With STP how long are the delays from listing to learning, and learning to forwarding?
15 seconds each
With STP what is the default bridge priority?
With STP what are the increments for the bridge priority?
What are the parts that make up a Vlan ID? and how long are they?
- -Bridge priority 2 bytes
- -MAC address 6 bytes
What happens when you run the command
"Switch#spanning-tree vlan-id root primary"?
The switch checks the priority of the root switch and then sets its priority to 4096 less than the current bridge.
What do you use to encrypt all the passwords on the Cisco device?