HP-UX iSCSI Software Initiator Support Guide, HP-UX 11i v1 and 11i v2, July 2005

Chapter 1

iSCSI Overview

iSCSI Login

The iSCSI login enables:

• A TCP connection for iSCSI use

• Authentication of the parties

• Negotiation of the session’s parameters

• Marking the connection as belonging to an iSCSI session

An iSCSI session is established to identify all of the connections between an initiator and a target belonging

to the same I_T nexus.

Targets listen on a well-known TCP port (3260, as defined in the iSCSI Protocol Specification), or on a user

configured TCP port, for incoming connections. The initiator begins the login process by connecting to one of

these TCP ports.

An iSCSI Session has two phases:

•Login Phase

• Full Featured Phase

Figure 1-6 iSCSI Session Establishment and Phases