Dell PowerEdge M1000e Dell PowerEdge M1000e Configuration Guide - Page 23

CMC Daisy Chaining (Enclosure Stacking), Cabling Guidelines - chassis

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CMC Daisy Chaining (Enclosure Stacking) CMC daisy chaining can be utilized to minimize the number of network connections required for chassis (enclosure) management, such that only one or two network connections (depending on whether or not redundant CMCs are installed) are needed for up to four M1000e enclosures. Cabling Guidelines Follow these guidelines to daisy chain CMC modules from enclosure to enclosure: • CMC Ethernet port GB1 is the Uplink port. It uplinks to either the management network, or to receive a cable from the CMC Ethernet port labeled STK in the adjacent enclosure. The CMC Ethernet port labeled STK is the daisy-chain port. It connects only to CMC port GB1 on the adjacent enclosure. Do not connect this cable directly to the management network. • Up to four enclosures can be daisy chained. • Enclosures can be daisy chained in both redundant and non-redundant deployments: - In a redundant CMC deployment, cable all CMC modules in the CMC primary slots together. Cable all CMC modules in the CMC secondary slots together. NOTE: Do not connect the primary daisy chain with the secondary daisy chain (do not cross cable the two sets of CMCs). - In a non-redundant CMC, cable all CMC modules in the CMC primary slots together. Figure 1-15 shows four enclosures with redundant CMC modules installed. Primary CMC port GB1 in the first enclosure connects to the management network. Primary CMC port GB1 in the adjacent enclosure is uplinked into the port labeled STK on the primary CMC in the enclosure above it. No cable is required in port STK on the fourth enclosure in line. The same cabling scheme is valid for the daisy chain of CMC modules in the secondary slot of the enclosures. About Your System 23

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About Your System
23
CMC Daisy Chaining (Enclosure Stacking)
CMC daisy chaining can be utilized to minimize the number of network
connections required for chassis (enclosure) management, such that only one
or two network connections (depending on whether or not redundant CMCs
are installed) are needed for up to four M1000e enclosures.
Cabling Guidelines
Follow these guidelines to daisy chain CMC modules from enclosure to
enclosure:
•
CMC Ethernet port GB1 is the Uplink port. It uplinks to either the
management network, or to receive a cable from the CMC Ethernet port
labeled STK in the adjacent enclosure.
The CMC Ethernet port labeled STK is the daisy-chain port. It connects
only
to CMC port GB1 on the adjacent enclosure. Do not connect this
cable directly to the management network.
•
Up to four enclosures can be daisy chained.
•
Enclosures can be daisy chained in both redundant and non-redundant
deployments:
–
In a redundant CMC deployment, cable all CMC modules in the
CMC primary slots together. Cable all CMC modules in the CMC
secondary slots together.
NOTE:
Do not connect the primary daisy chain with the secondary daisy
chain (do not cross cable the two sets of CMCs).
–
In a non-redundant CMC, cable all CMC modules in the CMC
primary slots together.
Figure 1-15 shows four enclosures with redundant CMC modules installed.
Primary CMC port GB1 in the first enclosure connects to the management
network. Primary CMC port GB1 in the adjacent enclosure is uplinked into
the port labeled STK on the primary CMC in the enclosure above it. No cable
is required in port STK on the fourth enclosure in line. The same cabling
scheme is valid for the daisy chain of CMC modules in the secondary slot of
the enclosures.