N-Tron 700 Series User Manual & Installation Manual

Also see for 700 Series: Features User manual & installation guide

Contents

N-Tron 700 Series User Manual & Installation Manual Manual pdf 15 page image

Revision 050908 Page 15 of 101Overview of Advanced FeaturesMode of OperationEach port on the switch can be configured into different modes of operation as shown below:Copper Ports: 100Base Fiber Ports:- Half Duplex - Full Duplex- Full Duplex- Auto NegotiationHalf DuplexIn half duplex mode, the CSMA/CD media access method is the means by which two or more stations sharea common transmission medium. To transmit, a station waits (defers) for a quiet period on the medium (thatis, no other station is transmitting) and then sends the intended message in bit-serial form. If, after initiatinga transmission, the message collides with that of another station, then each transmitting station intentionallytransmits for an additional predefined period to ensure propagation of the collision throughout the system.The station remains silent for a random amount of time (back-off) before attempting to transmit again.Full DuplexFull duplex operation allows simultaneous communication between a pair of stations using point-to-pointmedia (dedicated channel). Full duplex operation does not require that transmitters defer, nor do theymonitor or react to receive activity, as there is no contention for a shared medium in this mode.Auto NegotiationIn Auto Negotiation mode, the port / hardware detects the mode of operation of the station that is connectedto this port and sets its mode to match the mode that of the station.Port MirroringA Mirroring Port is a dedicated port that is configured to receive the copies of Ethernet frames that are beingtransmitted out and also being received in from any other port that is being monitored.Port TrunkingPort Trunking is the ability to group two network ports to increase the bandwidth between two machines(switch or any work station). This feature allows grouping of high-speed connectivity and providesredundant connection between switches, so that a trunk can act as a single link between the switches.Priority Tagging (QoS)IEEE 802.1p priority tagging is supported for two classes of services along with bandwidth support perpriority level. Transparent mode is supported through configuration wherein if the field is set, the tag bitsare ignored. The user can configure up to 8 different priority levels per port. Also priority overriding(overriding the tagged field) can be enabled or disabled by the user.