Network layer
layer 3
Data link layer
Hubs and repeaters operate at the Physical Layer of the OSI Model. The Physical Layer is the first layer of the OSI Model.
i believe (not quite sure) that it is at the application layer (layer 1)
Layer 1 - the physical layer
layer 3
Application Layer
OSI stands for Open system interconnection model. Application layer is the seventh layer in OSI model.
The network number in an IP address is that portion of the IP address that matches the subnet mask. For instance, if the IP address is 10.11.12.13 and the subnet mask is 255.255.0.0, then the network number is 10.11.0.0. If the subnet mask is 255.255.255.0, then the network number is 10.11.12.0. The network layer (layer 2 in the OSI model) in the TCP/IP protocol stack uses the network number to determine if the destination address is directly reachable, or if the frame needs to be routed through the default gateway.
The network number in an IP address is that portion of the IP address that matches the subnet mask. For instance, if the IP address is 10.11.12.13 and the subnet mask is 255.255.0.0, then the network number is 10.11.0.0. If the subnet mask is 255.255.255.0, then the network number is 10.11.12.0. The network layer (layer 2 in the OSI model) in the TCP/IP protocol stack uses the network number to determine if the destination address is directly reachable, or if the frame needs to be routed through the default gateway.
Data link layer
Networking layer of the OSI model
In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).
Packet switching is considered part of layer 3 of the OSI model.Packet switching is considered part of layer 3 of the OSI model.Packet switching is considered part of layer 3 of the OSI model.Packet switching is considered part of layer 3 of the OSI model.
The top layer of the OSI model; Application
hub work at physical layer of osi model
TELNET