Symptoms

Issue: While running the "portshow" command the 'portHealth' parameter returns the following alert:Fabric vision license not present. Please install the license and retry the operation. #admin> portshow 1portIndex: 1portName: port1portHealth: Fabric vision license not present. Please install the license and retry the operation.Authentication: NoneportDisableReason: NoneportCFlags: 0x1portFlags: 0x1 PRESENT U_PORTLocalSwcFlags: 0x0portType: 24.0POD Port: Port is licensedportState: 2 OfflineProtocol: FCportPhys: 4 No_Light portScn: 2 Offlineport generation number: 0state transition count: 1portId: 010100portIfId: 43020005portWwn: 20:01:88:94:71:66:24:7bportWwn of device(s) connected:16b Area list:Distance: normalportSpeed: N16GbpsFEC: InactiveCredit Recovery: InactiveLE domain: 0Peer beacon: OffFC Fastwrite: OFFInterrupts: 2 Link_failure: 0 Frjt: 0Unknown: 0 Loss_of_sync: 0 Fbsy: 0Lli: 2 Loss_of_sig: 0Proc_rqrd: 0 Protocol_err: 0Timed_out: 0 Invalid_word: 0Tx_unavail: 0 Invalid_crc: 0Delim_err: 0 Address_err: 0Lr_in: 0 Ols_in: 0Lr_out: 0 Ols_out: 0

Cause

Port health status is not determined in the portshow output as the fabric vision license is not installed on the switch.Hence, we are unable to monitor the switch port to for any issue and update the port health status.

Resolution

Fabric Vision technology: Brocade Fabric Vision technology is an advanced hardware and software solution that combines capabilities from the Brocade Gen 5 Fibre Channel ASIC, Brocade Fabric OS® (FOS), and Brocade Network Advisor to help administrators address problems before they impact operations, accelerate new application deployments, and dramatically reduce operational costs.Fabric Vision technology provides unprecedented visibility and insight across the storage network through innovative diagnostic, monitoring, and management technology. Features and capabilities offered by Brocade Fabric Vision technology:Fabric Vision technology includes: Brocade ClearLink Diagnostics: Leverages the unique Brocade Diagnostic Port (D_Port) mode to ensure optical and signal integrity for Gen 5 Fibre Channel optics and cables, simplifying deployment and support of high-performance fabrics. Monitoring and Alerting Policy Suite (MAPS): A policy-based monitoring and alerting suite that proactively monitors the health and performance of the SAN infrastructure to ensure application up-time and availability. Flow Vision: A comprehensive tool that allows administrators to identify, monitor, and analyze specific application and data flows in order to maximize performance, avoid congestion, and optimize resources. Bottleneck Detection: Identifies and alerts administrators to device or Inter-Switch Link (ISL) congestion as well as device latency in the fabric, providing visualization of bottlenecks and identifying exactly which devices and hosts are impacted. 2 of 2 At-a-glance dashboard: Includes customizable health and performance dashboard views, providing all critical information in one screen. Forward Error Correction (FEC): Automatically detects and recovers from bit errors, enhancing transmission reliability and performance. Virtual Channel-level BB_Credit Recovery: Automatically detects and recovers buffer credit loss at the Virtual Channel level, providing protection against performance degradation and enhancing application availability.

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