Unable to ISL Brocade and Cisco Switch Last updated May 22, 2023 Save as PDF Share Share Tweet Share Views:136Visibility:PublicVotes:0Category:fabric-interconnect-and-management-switchesSpecialty:brocadeLast Updated:5/22/2023, 6:34:49 PM Applies to Brocade Cisco MDS Issue When configuring an ISL port, the ISL port is not recognized properly by Cisco switch.