Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 543)

SFP breakout values TABLE 89
SFP # (rbridge/slot/port ) SFP type Interface name
Breakout disabled Breakout enabled
3/2/1 QSFP (4 x10G) Fo 3/2/1 Te 3/2/1:1
Te 3/2/1:2
Te 3/2/1:3
Te 3/2/1:4
Breakout mode limitations
In most circumstances, breakout interfaces behave the same as nonbreakout (normal) interfaces with
regard to port attributes and states. Each breakout interface maintains its administrative state,
operational state, and statistics. The exception is at the physical layer, whereby the hardware platform
does not have per-breakout interface information.
• SFP media
In breakout mode, there is only SFP and no per-breakout media information. The show media
command displays the same media information for all breakout interfaces.
NOTE
The TX Power Field in the show media command is not supported by the 40G optics.
• LED state
For Brocade VDX 6740 series platforms, the LED state for a breakout interface is deterministic. For
all other supported platforms, the LED state for a breakout interface is not deterministic.
Breakout mode high-availability considerations
The active control processor (CP) needs to sync the SFP breakout state to the standby CP. After a
failover, you should reconfirm the existence of interfaces, as well as note any possible configuration
differences between what is expected for breakout mode and what is actually present.
Because changing the SFP mode requires associated interfaces to be disabled first, there is no data-
traffic disruption during failover.
Configuring breakout mode for a chassis system
To configure breakout mode on a blade in a chassis, complete the following procedure.
NOTE
Breakout mode is only supported on 27x40GbE line card ports configured in Performance operating
mode. An error will occur if you try to configure breakout mode on ports that are not in this mode. With
Breakout mode limitations
Network OS Administrator’s Guide 543
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