Dell EMC ECS EX Series User Manual

Figure 29 Inter-rack switch connectivity - linear topology (daisy-chain) between EX Series racks
The inter-rack linear topology between an EX-Series rack and a Gen2 rack is shown in the
following figure. For a mixed Gen2 and Gen3 environment, use Turtle switch port 51 for inbound,
and port 52 for outbound. On the Gen3 Fox switch, use port 39 for inbound and port 40 for
outbound. This is a requirement for mixing Gen2 and Gen3 racks in the same VDC. Ports 39 and 40
are not used in an all Gen3 environment with EX-Series racks.
Figure 30
Inter-rack switch connectivity - linear topology (daisy-chain) between an EX-Series rack and
a Gen2 U-Series, D-Series, or C-Series rack
Ring topology
For a more reliable network, the ends of the daisy chain topology can be connected together to
create a ring network as demonstrated below. The ring topology would require two physical link
breaks in the topology to create split-brain issue in the private.4 network.
EX500 Platform
ECS EXSeries Hardware Guide 51

Dell EMC ECS EX Series Specifications

General

Brand	Dell EMC
Model	ECS EX Series
Category	Network Hardware
Language	English