McDATA StorageWorks 2/140 - Director Switch Planning Manual page 295

E/OSc versus E/OSn and E/OSi - System-Related Differences (Continued)
Table B-1
Feature
Misaligned word Misaligned words not generated. Misaligned word is generated
generation
Flexible partition Flexpar feature not supported.
(FlexPar) feature
support
Maintenance port For directors, one 9-pin, RS-232
access serial port shared between two
CTP cards. Port-attached device
communicates only with the
active card. For fabric switches,
one 9-pin, RS-232 serial port per
switch.
Fibre Channel Protocol-Related Differences
E/OSc versus E/OSn and E/OSi - Fibre Channel Protocol-Related Differences
Table B-2
Feature
Node port (N_Port) ID N_Port ID assigned based on
assignment port number plus offset of four.
Device attached to port nn
obtains N_Port ID of
dd(nn+4)xx, where dd is the
switch domain ID and xx is
hexadecimal 13.
Exchange switch ESS not transmitted until fabric
support (ESS) shortest path first (FSPF)
sequence transmission algorithm obtains best hop to
target domain.
E/OSc 8.0
when the port state machine
(PSM) transitions from inactive
to active state or from active to
inactive state. This anomaly has
no effect on Fibre Channel
device behavior.
Up to four FlexPars supported
for each Intrepid 10000 Director
chassis.
Each CTP card has an
independent 9-pin, RS-232 serial
port that provides access to
engineering-level interfaces.
Maintenance mode and
command line interface (CLI)
available through the active CTP
card port.
Table B-2 summarizes Fibre Channel protocol-related differences
between the E/OSc 8.0, E/OSn 6.0, and E/OSi 4.6 firmware versions.
E/OSc 8.0
N_Port ID assigned based on
port number. Device attached to
Port nn obtains N_Port ID of
ddnnxx, where dd is the switch
domain ID and xx is
hexadecimal 13.
ESS transmitted at the moment
adjacency to the target domain is
detected (link at FSPF FULL
state). Therefore, ESS always
transmitted sooner for an
Intrepid 10000 Director.
E/OSn 6.0
Misaligned words not generated.
Flexpar feature not supported.
One 9-pin, RS-232 serial port
per SAN router.
E/OSn 6.0
N_Port ID assigned based on
port number. Device attached to
Port nn obtains N_Port ID of
ddnnxx, where dd is the switch
domain ID (always 01) and
xx is hexadecimal 13.
ESS transmitted only in
response to an ESS received
from another fabric element.
Firmware Summary
Firmware Summary
E/OSi 4.6
E/OSi 4.6
B-3