HP StorageWorks 4000/6000/8000 - Enterprise Virtual Arrays - B-Series Trunking and WDM; C-Series Switch Settings; Port Protocol Setting Based on the Extension Architecture; C-Series Switch Extended Fabric Settings

Table 141 describes the appropriate port protocol setting based on the WDM system architecture.
Table 141 Port protocol setting based on the extension architecture
B-series port protocol settingWDM system architecture
portCfgISLModeslot/port, 1
Active protocol handling (Table 140)
portCfgISLModeslot/port, 0
Passive protocol handling
NOTE:
The portCfgISLMode and portCfgLongDistance L0.5, L1, or L2 mode cannot be enabled at
the same time; otherwise, fabric segmentation occurs. The portCfgISLMode and
portCfgLongDistance mode LE, LD, or LS can be enabled at the same time.
B-series trunking and WDM
Consider the following when using B-series trunking with WDM:
• Trunking with WDM is supported only at 2 Gb/s or 4 Gb/s (1 Gb/s is not supported).
• Trunking de-skew timers can accommodate a maximum difference of 400 m (de-skew value of
200) between the shortest and longest ISLs in a trunk.
• Trunking distance rules are listed in the HP StorageWorks Fabric OS administrator guide.
• Trunking is not supported with ports configured for portCfgMode slot/port, 1 (R_RDY mode).
C-series switch settings
Table 142 lists the C-series switch extended fabric settings for maintaining performance with extended
fabric links.
Table 142 C-series switch extended fabric settings
SettingExtended fabric item
C-series switches support up to 4095 BB_credits. See Table 191 on page 387
for detailed information.
Supported switch models
7Maximum number of hops
See Table 80, Table 81, and Table 82 in “SAN fabric connectivity and switch
interoperability rules” on page 167 for detailed information about distance rules
for long-wave transceivers.
Maximum segment distance
Consider the following when using C-series switches with extended fabric links:
• The MDS 9216i and 14/2 Multiprotocol Services Modules can allocate up to 3,500 BB_credits
to an individual port.
• The MDS 9222i Multiservice Fabric and 18/4 Multiservice Modules can allocate up to 4,095
BB_credits to an individual port.
• 4 Gb/s and 10 Gb/s Fibre Channel Switching Modules can allocate up to 4,095 BB_credits to
an individual port.
• Each port on the 16-port line card supports 255 BB_credits. These credits are available on a
nl
per-port basis through a single link or a link combined with a port channel.
SAN extension288