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What are the parameters of the FC interface

Fibre Channel (FC) interfaces are configured with parameters such as port mode, buffer-to-buffer credit, frame size, and WWN addressing to ensure reliable SAN communication.Key Parameters

1. Port Mode and Interface Identification

  • FC interfaces are typically configured by switching an Ethernet interface to FC mode using commands like port mode fc interface-type interface-number and entering the FC interface view with interface fc fc-port-id ( ).
  • Each FC interface is identified by a port ID and associated with a World Wide Name (WWN), a 64-bit globally unique address used for communication in the SAN ( ). 2. Buffer-to-Buffer Credit (BB_Credit)
  • BB_Credit is a flow control mechanism that determines the number of outgoing frames an FC interface can send without receiving acknowledgment, preventing packet loss ( ).
  • It is calculated based on the maximum frame size and the available buffer on the interface. Extended BB_Credits may be used for longer distances or higher-speed links ( ). 3. Frame Size
  • The maximum length of packets (frames) forwarded by an FC interface can be configured using commands like fc framesize framesize ( ).
  • By default, the maximum frame size is 2148 bytes, but it can be adjusted to optimize performance or accommodate specific SAN requirements ( ). 4. Flow Control and Error Handling
  • Forward Error Correction (FEC) can be enabled on some FC interfaces to allow error detection and correction without retransmission, particularly useful on impaired links ( ).
  • Transmitter Training Signal (TTS) allows the receiver to provide feedback to the transmitter for link adaptation and FEC usage ( ). 5. SAN Topology and Addressing
  • FC interfaces operate in different SAN topologies: point-to-point, arbitrated loop, or switched fabric ( ).
  • Each interface is part of a domain, area, and port structure, with Domain_ID, Area_ID, and Port_ID forming the 24-bit FC address used for routing within the fabric ( ). 6. Additional Configurations
  • Descriptions, mirroring, and medium type can be pre-configured on FC interfaces ( ).
  • Shared resources like BB_Credits are allocated per interface and may need to be managed when interfaces are taken out of service or reconfigured ( ).
Summary

FC interface parameters are critical for reliable SAN operation, including port mode, BB_Credit, frame size, WWN addressing, and error control mechanisms. Proper configuration ensures efficient traffic flow, prevents packet loss, and maintains compatibility across SAN devices. These parameters are typically set via system-view commands on switches and require careful planning for high-speed or long-distance SAN deployments ( ).

What are the parameters of the FC interface

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Hi As a beginner with PLC I have a (hopeful easy) question. It''s about giving parameters for FC. 1. As shown at the

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Specifies the number of an FC interface. Usage Scenario. Devices on a storage area network (SAN) use FC interfaces to

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This document describes the configurations of Trill, FC, FCoE, DCB, and NLB Server Cluster Association.

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Port speed can be configured on a physical Fibre Channel interface (but not on a virtual Fibre Channel interface). By default, the port

Support

After an FC interface is assigned to an FC aggregation group, it uses the configuration of the FC aggregate interface to perform link

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A physical Fibre Channel interface can be configured as an E port, an F port, or an SD port. Interfaces may also be

Fibre Channel Protocol

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Support

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interface fc

Specifies the number of an FC interface. Usage Scenario. Devices on a storage area network (SAN) use FC interfaces to

(Optional) Setting Parameters for the FC Interface

This document describes the configurations of Trill, FC, FCoE, DCB, and NLB Server Cluster Association.

Configuring Fibre Channel Interfaces

Port speed can be configured on a physical Fibre Channel interface (but not on a virtual Fibre Channel interface). By default, the port

Support

After an FC interface is assigned to an FC aggregation group, it uses the configuration of the FC aggregate interface to perform link

Configuring Fibre Channel Interfaces

A physical Fibre Channel interface can be configured as an E port, an F port, or an SD port. Interfaces may also be

Fibre Channel Protocol

Fibre Channel Protocol (FCP) is the SCSI interface protocol utilising an underlying Fibre Channel connection. The Fibre Channel

Support

The baud rate of an FC aggregate interface is the speed of the FC aggregate interface, which is the sum of the speed of each

4.3 Overview of Fibre Channel (FC) SAN Protocol

FC protocol provides both the channel speed for data transfer with low protocol overhead and the scalability of network

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User-friendly to reduce time and cost in commissioning and operation With the VLT® Mains-Free Interface accessory you can set

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Native FC interfaces connect to the storage area network (SAN) FC switch. You can configure ports xe-0/0/0 through

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