Method and system for primary blade selection in a multi-module fibre channel switch
View Patent ↗A system and method for selecting a primary blade in a multi-module fibre channel switch with plural blades is provided. The system includes a state machine for sending exchangeable blade parameter(s) (“EBP”) to the plural blades; and determining if a primary blade flag is set. If the primary blade flag is set, selecting the blade with the EBP priority number. If the primary blade flag is not selected, then selecting a blade with an EBP priority number if the EBP priority number is less than a retained priority number.
1. A method for a multi-module switch, comprising:
selecting a primary blade from among a plurality of blades by sending exchangeable blade parameter(s) (“EBP”) to the plural blades; and
notifying at least another blade of primary blade selection,
wherein the method for selecting the primary blade, comprises:
determining if a primary blade flag is set in an EBP payload; and
selecting a blade with a EBP priority and a blade slot number if the primary blade flag is selected.
2. The method of claim 1 , further comprising:
selecting a blade with an EBP priority number if the EBP priority number is less than a retained priority number and the primary blade flag is un-selected.
3. The method of claim 1 , further comprising:
selecting a blade with an EBP priority number equal to a retained priority number and an EBP slot number is less than a retained primary blade slot number.
4. The method of claim 1 , further comprising:
sending EBPs to plural blades notifying the blades of a selected primary blade.
5. A system for selecting a primary blade in a multi-module fibre channel switch with plural blades, comprising;
a port for sending exchangeable blade parameter(s) (“EBP”) to the plural blades; and determining if a primary blade flag is set in an EBP payload.
6. The system of claim 5 , wherein the port selects a blade with an EBP priority and a blade slot number if the primary blade flag is selected.
7. The system of claim 5 , wherein a blade is selected if the blade has an EBP priority number and the EBP priority number is less than a retained priority number and the primary blade flag is un-selected.
8. The system of claim 5 , wherein a blade is selected if the blade has an EBP priority number equal to a retained priority number and an EBP slot number is less than a retained primary blade slot number.
9. The system of claim 5 , wherein the port sends EBPs to the plural blades notifying the blades of the selected primary blade.