Acquiring addresses in an input/output system

In a computer I/O system including a plurality of link-level facilities and a dynamic switch (10) having a plurality of ports (P), each link-level facility being attached to an individual one of the ports (P), a mechanism and method for assigning a unique link level address to each of the link-level...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MERITT, ALLAN SAMUEL, SNEDAKER, MARK CARL, ELLIOTT, JOSEPH CHARLES, HEFFERON, EUGENE PAUL, SACHS, MARTIN WILLIAM
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	In a computer I/O system including a plurality of link-level facilities and a dynamic switch (10) having a plurality of ports (P), each link-level facility being attached to an individual one of the ports (P), a mechanism and method for assigning a unique link level address to each of the link-level facilities. As each of the link-level facilities comes on line, it sends an acquire link address (ALA) frame and waits for a response (ACK) frame. The ALA frame may be addressed to a general to-whom-it-may-concern address and have a source address of who-am-I. Only a dynamic switch (10) normally assigns link addresses. When receiving (110) an ALA frame, the dynamic switch returns (115) an ACK frame having a unique link address assigned to the sender of the ALA frame. Provision is made for determining if there is a dynamic switch present, or, if the link-level facilities are connected together by a static connection through the dynamic switch, for the link-level facility of a channel to assign the unique link addresses.