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HP SN3000B User Manual

HP SN3000B
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Fabric OS Administrator’s Guide 433
53-1002446-01
Chapter
22
Managing Trunking Connections
In this chapter
Trunking overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433
Requirements for trunk groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435
Supported configurations for trunking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436
Supported platforms for trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436
Recommendations for trunking groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Configuring trunk groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Enabling trunking on a port or switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Disabling trunking on a port or switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Displaying trunking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
ISL trunking over long distance fabrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
EX_Port trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
F_Port trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442
Configuring F_Port trunking for Access Gateway. . . . . . . . . . . . . . . . . . . . . 447
Configuring F_Port trunking for Brocade adapters . . . . . . . . . . . . . . . . . . . 448
Displaying F_Port trunking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448
Disabling F_Port trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449
Enabling the DCC policy on a trunk area . . . . . . . . . . . . . . . . . . . . . . . . . . . 449
Trunking overview
The trunking feature optimizes the use of bandwidth by allowing a group of links to merge into a
single logical link, called a trunk group. Traffic is distributed dynamically and in order over this trunk
group, achieving greater performance with fewer links. Within the trunk group, multiple physical
ports appear as a single port, thus simplifying management. Trunking also improves system
reliability by maintaining in-order delivery of data and avoiding I/O retries if one link within the trunk
group fails.
Trunking is frame-based instead of exchange-based. Since a frame is much smaller than an
exchange, this means that frame-based trunks are more granular and better balanced than
exchange-based trunks and provide maximum utilization of links.
The Trunking license is required for any type of trunking, and must be installed on each switch that
participates in trunking. For details on obtaining and installing licensed features, see Chapter 18,
Administering Licensing”.

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HP SN3000B Specifications

General IconGeneral
BrandHP
ModelSN3000B
CategorySwitch
LanguageEnglish

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