Interface Configuration
7750 SR Interface Configuration Guide Page 173
Configuring SFM5-12e Fabric Speed
With the introduction of SFM5-12e and the mini-SFM5-12e, a new tools command (set-fabric-
speed) was added to set the fabric operating speed. (tools command does not apply to SFM4-12e
fabric-speed-a). 7750 SR-7 and 7750 SR-12 support fabric-speed-b.
fabric-speed-a
The 7750 SR-12e chassis defaults to the fabric-speed-a parameter when initially deployed with
SFM5-12e. The fabric-speed-a parameter operates at 200GB per slot which permits a mixture of
FP2/FP3 based cards to co-exist.
fabric-speed-b
The fabric-speed-b parameter enables the 7750 SR-12e to operate at up to 400 Gb/s, for which all
cards in the 7750 SR-12e are required to be T3 based (FP3 IMM and/or IOM3-XP-C). The system
will not support any FP2 based cards when the chassis is set to fabric-speed-b.
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