Table 10 – Brocade Communications Systems Brocade Backbone DCX 8510-4 User Manual
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Brocade DCX 8510-4 Backbone Hardware Reference Manual
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Inter-chassis link (QSFP) cable removal and replacement
5
NOTE
The QSFP ports can be used only with an inter-chassis link (ICL) license. After the addition or removal
of a license, the license enforcement is performed on the ports only when the portdisable and
portenable commands are issued on the ports. An ICL license must be installed on all Brocade
Backbones forming the ICL connection. Beginning with Fabric OS v7.0.1, up to nine neighboring
Brocade 8510 series chassis can be connected with the QSFP cables. Under Fabric OS v7.0.0, six
chassis can be connected.
NOTE
For the Brocade 8510 Backbones, an off-the-shelf QSFP cable up to 50 meters long can be used as
an ICL cable.
ATTENTION
For the 8510 series models, if the QSFP cables are not used, make sure the rubber gaskets are in
the QSFP transceivers.
describes the connector port LED patterns and the recommended actions for those
patterns.
Follow this procedure to install the QSFP cables. Refer to the Fabric OS Administrator’s Guide for
the configuration procedure and requirements.
shows an QSFP cable and transceiver. The QSFP connectors on the core blades are
labeled by trunk group (trunking is optional) for ease of installation. The subsequent figures shows
acceptable cabling configurations for the ICL feature. The recommended topology is the parallel
type where there are four QSFP cables connected between any pair of Brocade 8510 series
chassis.The full mesh configuration is also supported.
TABLE 10
QSFP connector port LEDs
LED purpose
Color
Status
Recommended action
QSFP
connector
status
No light (LED is off)
No QSFP module, all four
QSFP ports are disabled
No action required if QSFP no
present or
verify that the QSFP is fully inserted.
Steady amber
QSFP module is in, all four
ports have no signal/no
sync.
No action required if QSFP only is
installed or
ensure that the cable is properly
connected. If the LED remains
amber, consult the Brocade DCX
8510-4 supplier.
Blinking amber
Port is disabled or faulted,
FC link activity, segmented,
loopback mode, also
during transition between
QSFP cable insertion and
confirmation.
Check for console messages or wait
for all four ports to come online.
Steady green
Both ends of QSFP cable
are in and all ports are
online. Full link is
established.
No action required.