If they do, then change the affected zones to reflect the new domain ID before changing the domain ID.
When changing the domain ID, verify if port zoning entries exist for devices on the switch. A contiguous block of IP addresses reserved for current and future switches is beneficial. The domain ID should reflect the last octet of the IP address of the switches management interface. The domain ID and other parameters should be set for each switch before cabling any switch into a fabric. Old switches are more restrictive and their ranges could include zero (0) as an optional domain ID. Products may have restrictive ranges, typically from 1 to 239, varying by switch vendor and model. Typically, zero (0) is reserved and one (1) is the default setting for new switches. The domain ID is an 8-bit identifier with a range of 0-255. Generally, each switch is a single domain. It is the highest or most significant hierarchical level in the three-level address hierarchy. Enter the switchEnable command to re-enable the switch.ĭ omain ID: a number that uniquely identifies a switch in a fabric. Respond to the remaining prompts, or press Ctrl-D to accept the other settings and exit.ħ. Use a domain ID value from 1 through 239 for normal operating mode (FCSW-compatible).Ħ. Enter a unique domain ID at the Domain prompt. Enter y after the Fabric Parameters prompt:įabric parameters (yes, y, no, n): yĥ. Enter the switchDisable command to disable the switch.Ĥ. Connect to the switch and log in on an account assigned to the admin role.Ģ. An arrow (>) indicates the principal switch.ġ. Name The switch’s symbolic or user-created name in quotes. For IPv6 switches, only the static IP address displays.įC IP Addr The switch’s Fibre Channel IP address. The numbers are broken down as follows:įffc40 is the hexidecimal format of the embedded port D_ID.Įnet IP Addr The switch’s Ethernet IP address for IPv4- and IPv6-configured switches. : Switch ID The switch’s domain_ID and embedded port D_ID. The fields in the fabricShow display are: Output, the principal switch appears in blue and boldface. The principal switch is determined by the arrow ( > ) next to the name of the switch. Connect to the switch and log in using an account assigned to the admin role.Įxample output of fabric information, including the domain ID (D_ID) To minimize down time, change the domain IDs on the other switches in the fabric.ġ.
Avoid changing the domain ID on the FCS in secure mode. The use of this domain ID can cause the switch to reboot continuously. The default domain ID for Brocade switches is 1.ĭo not use domain ID 0. If both switches have their domain IDs persistently set, one of them will need to have its domain ID changed to a domain ID not used within the fabric. The process can take several seconds, during which time traffic is delayed. If a switch has a domain ID when it is enabled, and that domain ID conflicts with another switch in the fabric, the conflict is automatically resolved if the other switch’s domain ID is not persistently set. Although domain IDs are assigned dynamically when a switch is enabled, you can change them manually so that you can control the ID number or resolve a domain ID conflict when you merge fabrics.