> # FCIP Tunnels (Advanced)

> Field | Description
> --- | ---
> Interface | The interface on which this FCIP link was initiated.
> Timestamp Enable | If true, the timestamp in FCIP header is to checked.
> Timestamp Tolerance | The accepted time difference between the local time and the timestamp value received in the FCIP header. By default this value will be EDTOV/2. EDTOV is the Error_Detect_Timeout Value used for Fibre channel Ports as the timeout value for detecting an error condition.
> Number Connections | The maximum number of TCP connections allowed on this link.
> Passive | If false, this link endpoint actively tries to connect to the peer. If true, the link endpoint waits for the peer to connect to it.
> QoS Control | The value to be set for the ToS field in IP header for the TCP control connection.
> QoS Data | The value to be set for the ToS field in IP header for the TCP Data connection.
> IP Compression | What algorithm is used, if any.
> Write Accelerator | The Write accelerator allows for enhancing SCSI write performance.
> Tape Accelerator | If true, the tape accelerator (which allows for enhancing Tape write performance) is enabled.
> Tape Accelerator Oper | Write Acceleration is enabled for the FCIP link.
> TapeRead Accelerator Oper | Enabled automatically when the Tape Accelerator Oper is active.
> FlowCtrlBufSize Tape (KB) | The size of the flow control buffer (64K to 32MB). If set to 0, flow control buffer size is calculated automatically by the switch.
> IPSec | Indicates whether the IP Security has been turned on or off on this link.
> XRC Emulator | Check to enable XRC Emulator. It is disabled by default.
> XRC Emulator Oper | Indicates the operational status of XRC Emulator.

> Copyright 2010-2015, Cisco Systems, Inc. All rights reserved.