Seagate Fibre Channel Interface - Manual (Page 377)

Fibre Channel Interface Manual, Rev. D 363
Appendix A. Glossary
This section contains a glossary of terms used in this publication.
ABTS
Abort Sequence.
ABTX
Abort Exchange.
ACC
Accept.
ACK
Acknowledgment.
Active
The state of Sequence Initiator until all the Data frames for the Sequence have been transmitted. The state of
Sequence Recipient until all the Data frames for the Sequence have been received. The period of time during
which frames of a Sequence (or an Exchange) are actively being transmitted or received.
Active Virtual Circuit Credit limit
The maximum number of VC_Credits available for a Virtual Circuit in the Active state. It represent the maxi-
mum number of VC_Credits held by an N_Port on a given Virtual Circuit when the Circuit is in the active state.
Address identifier
An address value used to identify source (S_ID) or destination (D_ID) of a frame.
ADVC
Advise Credit.
Alias
Alias is a group address recognized by an N_Port if the N_Port has registered as a member of the group, with
the Alias Server.
Alias address identifier (alias)
One or more address identifiers which may be recognized by an N_Port in addition to its N_Port Identifier. An
alias address identifier is Fabric unique and may be common to multiple N_Ports.
Alias_Token
A 12-byte field to indicate the type of Alias (such as Multicast, Hunt Group) and certain properties associated
with the Alias (such as FC-PH TYPE, Node Name for the Common Controlling Entity).
Application client
An object that is the source of SCSI commands.
Application client buffer offset
Offset in bytes from the start or base address of the application client’s data buffer to the location for the trans-
fer of the first byte of a data delivery service request.