Fcip Links - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Cisco mds 9000 family cli configuration guide - release 4.x (ol-18084-01, february 2009)

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Configuring FCIP

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

FCIP Links

FCIP links consist of one or more TCP connections between two FCIP link endpoints. Each link carries

encapsulated Fibre Channel frames.

When the FCIP link comes up, the VE ports at both ends of the FCIP link create a virtual Fibre Channel

(E)ISL and initiate the E port protocol to bring up the (E)ISL.

By default, the FCIP feature on any Cisco MDS 9000 Family switch creates two TCP connections for

each FCIP link:

To enable FCIP on the IPS module or MPS-14/2 module, an FCIP profile and FCIP interface (interface

FCIP) must be configured.

The FCIP link is established between two peers, the VE port initialization behavior is identical to a

normal E port. This behavior is independent of the link being FCIP or pure Fibre Channel, and is based

on the E port discovery process (ELP, ESC).

Once the FCIP link is established, the VE port behavior is identical to E port behavior for all inter-switch

communication (including domain management, zones, and VSANs). At the Fibre Channel layer, all VE

and E port operations are identical.

OL-18084-01, Cisco MDS NX-OS Release 4.x

FCIP Links and Virtual ISLs

"Configuring E Ports" section on page

One connection is used for data frames.

The other connection is used only for Fibre Channel control frames, that is, switch-to-switch

protocol frames (all Class F). This arrangement provides low latency for all control frames.

Cisco MDS 9000 Family CLI Configuration Guide

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