The FN100 Chassis View
Internal MAC
The number of frames for which transmission fails due to an internal MAC sublayer transmit error. This error is only counted in this window if there have not been corresponding Late Collisions, Excessive Collisions, or Carrier Sense Errors.
Transmit Errors
The total of transmission errors of all types that occurred while the selected interface was attempting to transmit frames.
Collision Errors
Single
Displays the number of successfully transmitted frames on the selected interface for which transmission was prevented by one collision.
Multiple
Displays the number of successfully transmitted frames on the selected interface for which transmission was prevented by more than one collision.
Late
Displays the number of times that a collision has been detected on this interface later than 51.2 microseconds into the transmission of the packet on a 10 Mbit/s system or later than 5.12 microseconds on a 100 Mbit/s system.
Excessive
Displays the number of frames from this interface for which transmission was not complete due to excessive collisions.
Collision Errors
Displays the total number of collision errors of all types that occurred during transmission from this interface.
Enabling and Disabling Ports
From the Port menus on the FN100 Chassis View window, you can administratively enable and disable the ports. When you administratively disable a bridge port, you disconnect that port’s network from the bridge entirely. The port does not forward any packets, nor does it participate in Spanning Tree operations. Nodes connected to the network can still communicate with each other, but they can’t communicate with the bridge or with other networks connected to the bridge. When you enable a port, the port moves from the Disabled state, through the Learning and Listening states, to the Forwarding state; bridge port state color codes will change accordingly.
Managing the Hub |