The following table lists terms and definitions used in this port configuration discussion.
Port Configuration Terms and Definitions
| Term | Definition |
|---|---|
| auto-negotiation | An Ethernet feature that facilitates the selection of port speed, duplex, and flow control between the link segments by first advertising these capabilities and then selecting the fastest transmission mode common to both segments. |
| baud rate | The speed the console port operates at. |
| broadcast suppression | A port feature that sets a threshold on the broadcast traffic that is received and switched out to other ports. |
| console port | A port through which local management of the device can be accessed using a terminal or modem. |
| default priority | A default 802.1p priority that will be applied to a packet when no priority is set in the packet as it transits the port. |
| duplex | The specification of whether the communications between two devices is one way at a time or both ways simultaneously. |
| flow control | A port feature that manages the rate of data transmission between two nodes to prevent a fast sender from overrunning a slow receiver. |
| force linkdown | A port feature that allows for the forcing of a port in the “operstatus down” state be become disabled. |
| ingress filtering | A port feature that provides a means of limiting the forwarding of received frames on the ingress port based on the VLAN egress list for that port. |
| jumbo frame | A port feature that supports Ethernet frames greater than 1500 bytes of payload on the port. |
| link flap detection | A port feature that detects when a link is rapidly going up and down and provides for a port behavior when a threshold is crossed during a configured interval. |
| MDI/MDIX | A port feature that detects and adapts to straight through (MDI) or cross-over (MDIX) Ethernet cabling on the switch ports. |
| port advertised ability | The aspect of auto-negotiation that allows a port to share its capabilities with the other end of the link. |
| port alias | The association of a string name with a port. |
| port string | A port identifier made up of port type, chassis slot the module containing the port is installed into, and the port number, delineated by a period (.). |
Print
this page
Email this topic
Feedback
View PDF
Download EPUB