HP Cisco Nexus 5000 Cisco MDS 9000 Family CLI Configuration Guide - Release 4. - Page 759

Chapter 30 Advanced Features and Concepts World Wide Names Send documentation comments to [email protected] - 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 30-12 and 30-13). Example 30-12 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 30-13 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 30-1). Table 30-1 Standardized NAA WWN Formats NAA Address IEEE 48-bit address IEEE extended IEEE registered NAA Type Type 1 = 0001b Type 2 = 0010b Type 5 = 0101b WWN Format 000 0000 0000b Locally assigned IEEE company ID: 24 bits 48-bit MAC address 48-bit MAC address VSID: 36 bits OL-18084-01, Cisco MDS NX-OS Release 4.x Cisco MDS 9000 Family CLI Configuration Guide 30-9