Trunk operation using the “fec” option, Trunk operation using the “fec” option -79 – HP 8000M User Manual

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6-79

Configuring the Switch

Load Balancing: Port Trunking

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Trunk Operation Using the “FEC” Option

This is the most flexible method for distributing traffic over trunked links
when connecting to devices that use the FEC (Fast EtherChannel

®

)

technol-

ogy. HP FEC trunks offer the following benefits:

Provide trunked connectivity to a FEC-compliant server, switch, or router.

Enable quick convergence to remaining links when a failure is detected
on a trunked port link.

Depending on the capabilities of the device on the other end of the trunk,
negotiate the forwarding mechanism on the trunk to either SA-Trunk or
SA/DA (Trunk).

When auto-negotiated to the SA/DA forwarding mechanism, provide
higher performance on the trunk for broadcast, multicast, and flooded
traffic through distribution in the same manner as SA/DA trunking.

Support FEC automatic trunk configuration mode on other devices. That
is, when connecting HP FEC trunks to FEC-capable servers, switches, or
routers having FEC automatic trunk configuration mode enabled, the HP
FEC trunks allow these other devices to automatically form trunk groups.

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