S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
29-8
Cisco MDS 9000 Family CLI Configuration Guide
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Chapter 29 Advanced Features and Concepts
World Wide Names
–
The global fctimer values are not distributed.
•
Do not configure global timer values when distribution is enabled.
Note
The number of pending fctimer configuration operations cannot be more than 15.
At that point, you must
commit or abort the pending configurations before performing any more operations.
Displaying Configured fctimer Values
Use the
show fctimer
command to display the configured fctimer values (see Examples
29-13
and
29-14
).
Example 29-13 Displays Configured Global TOVs
switch#
show fctimer
F_S_TOV D_S_TOV E_D_TOV R_A_TOV
----------------------------------------
5000 ms 5000 ms 2000 ms 10000 ms
Note
The F_S_TOV constant, though not configured, is displayed in the output of the
show fctimer
command.
Example 29-14 Displays Configured TOVs for a Specified VSAN
switch#
show fctimer vsan 10
vsan no. F_S_TOV D_S_TOV E_D_TOV R_A_TOV
-------------------------------------------------
10 5000 ms 5000 ms 3000 ms 10000 ms
World Wide Names
The world wide name (WWN) in the switch is equivalent to the Ethernet MAC address. As with the MAC
address, you must uniquely associate the WWN to a single device. The principal switch selection and
the allocation of domain IDs rely on the WWN. The WWN manager, a process-level manager residing
on the switch’s supervisor module, assigns WWNs to each switch.
Cisco MDS 9000 Family switches support three network address authority (NAA) address formats (see
Table 29-1
).
Table 29-1
Standardized NAA WWN Formats
NAA Address
NAA Type
WWN Format
IEEE 48-bit address
Type 1 = 0001b
000 0000 0000b
48-bit MAC address
IEEE extended
Type 2 = 0010b
Locally assigned
48-bit MAC address
IEEE registered
Type 5 = 0101b
IEEE company ID: 24 bits
VSID: 36 bits
