HP StorageWorks FC Entry Switch 8B 사용자 설명서 - 페이지 16
{카테고리_이름} HP StorageWorks FC Entry Switch 8B에 대한 사용자 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. HP StorageWorks FC Entry Switch 8B 37 페이지. Isl trunking user's guide (version 3.0)
HP StorageWorks FC Entry Switch 8B에 대해서도 마찬가지입니다: 사용자 설명서 (44 페이지), 사용자 설명서 (44 페이지), 사용자 설명서 (38 페이지), 사용자 설명서 (38 페이지), 사용자 설명서 (30 페이지)
페이지 인쇄
2
Using QuickLoop
Sometimes, a single fabric loop device is attached to a port. In this case, the port would function as
an FL_port. The attached device possesses either an N_port (if the device is fabric-capable) or an
NL_port, in which case the device would be connected to the fabric in a loop configuration through
an FL_Port on a switch. In this latter case a looplet is created.
Each device in a private loop must have a unique physical address. The devices in a QuickLoop are
assigned a unique phantom AL_PA.
During implementation and operation of switches in a QuickLoop, messages are transmitted by
devices as they come online. These messages, called LIPs, are in addition to normal data traffic.
Dual-switch QuickLoop
In a dual-switch QuickLoop, the initialization process is driven by one of the switches, called the
QuickLoop master. The role of the QuickLoop master is dynamically assigned at each instance of
QuickLoop initialization, according to the following criteria:
•
If one switch receives LIPs from its looplets and the other does not, the switch that receives the
LIPs is the QuickLoop master.
•
If both switches receive LIPs from their respective looplets, the switch with the lower domain
ID is the QuickLoop master.
QuickLoop Initialization
QuickLoop initialization includes two passes:
•
Pass 1 Sequential looplet initialization
Allows each device in a looplet to obtain a unique AL_PA.
•
Pass 2 Full QuickLoop initialization
Brings QuickLoop up to operation.
If Zoning is in use, the looplets that are initialized depend upon the zoning configuration.
2-4
E_port
Expansion port. A port is designated an E_Port when it is used as an interswitch
expansion port to connect to the E_Port of another switch, to build a larger switch
fabric, or to build a two-switch QuickLoop configuration.
looplet
A set of devices connected in a loop to a port that is itself a member of an arbitrated
loop. By contrast, a single device rather than a loop might be connected to a port.
AL_PA
Arbitrated loop physical address. A one byte value used to identify a device in an
arbitrated loop.
LIP
Loop initialization primitive.
QuickLoop User's Guide