Cisco N5010P-N2K-BE, Руководство по настройке программного обеспечения

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C H A P T E R
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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
40
Configuring Fibre Channel Routing Services and
Protocols
Fabric Shortest Path First (FSPF) is the standard path selection protocol used by Fibre Channel fabrics.
The FSPF feature is enabled by default on the E mode and TE mode Fibre Channel interfaces on Cisco
Nexus 5000 Series switches. Except in configurations that require special consideration, you do not need
to configure any FSPF services. FSPF automatically calculates the best path between any two switches
in a fabric. FSPF provides the following capabilities:
•
Dynamically computes routes throughout a fabric by establishing the shortest and quickest path
between any two switches.
•
Selects an alternative path in the event of the failure of a given path. FSPF supports multiple paths
and automatically computes an alternative path around a failed link. It provides a preferred route
when two equal paths are available.
This chapter provides details on Fibre Channel routing services and protocols. It includes the following
sections:
•
Information About FSPF, page 40-1
•
FSPF Global Configuration, page 40-3
•
FSPF Interface Configuration, page 40-5
•
FSPF Routes, page 40-9
•
In-Order Delivery, page 40-10
•
Flow Statistics Configuration, page 40-14
•
Default Settings, page 40-16
Information About FSPF
FSPF is the protocol currently standardized by the T11 committee for routing in Fibre Channel networks.
The FSPF protocol has the following characteristics and features:
•
Supports multipath routing.
• Bases path status on a link state protocol.
•
Routes hop by hop, based only on the domain ID.
•
Runs only on E ports or TE ports and provides a loop free topology.