Users Guide

210 Stacking
Dell EMC Networking N1500 Series switches stack with other N1500 Series
switches using the 10G SFP+ front-panel ports.
Dell EMC Networking N1124T-ON/N1148T-ON/N1124P-ON/N1148P-ON
switches and N1500 Series switches support high-performance stacking over
the 10G front-panel ports, allowing increased capacity to be added as needed,
without affecting network performance and providing a single point of
management. Up to four Dell EMC Networking N1124T-ON/N1148T-
ON/N1124P-ON/N1148P-ON switches and N1500 Series switches can be
stacked using any 10G port as long as the link bandwidth for parallel stacking
links is the same. Note that configuring a 10G port for stacking also
configures the adjacent partner 10G port for stacking.
A stack of four Dell EMC Networking N1124T-ON/N1148T-ON/N1124P-
ON/N1148P-ON switches and N1500 Series switches has an aggregate
throughput capacity of 192 Gbps. Dell EMC Networking N1124T-
ON/N1148T-ON/N1124P-ON/N1148P-ON and N1500 Series stacking links
operate at 10 Gbps or 5.2% of total aggregate throughput capacity of a full
stack; therefore, it is recommended that operators provision large stacking
topologies such that it is unlikely that a significant portion of the stack
capacity will transit stacking links. One technique for achieving this is to
distribute uplinks evenly across the stack vs. connecting all uplinks to a single
stack unit or to adjacent stacking units.
A stack of twelve 48-port Dell EMC Networking N2000, N2100-ON, N3000E-
ON, or N3100-ON Series switches has an aggregate throughput capacity of
576 Gbps. Dell EMC Networking N2000/N2100-ON/N3000E-ON/N3100-ON
Series stacking links operate at 21 Gbps or 3.6% of total aggregate throughput
capacity of a twelve high stack; N2100-ON/N3100-ON stack links can operate
at 21 Gbps/40 Gbps; therefore, it is recommended that operators provision
large stacking topologies such that it is unlikely that a significant portion of
the stack capacity will transit stacking links. One technique for achieving this
is to distribute uplinks evenly across the stack vs. connecting all uplinks to a
single stack unit or to adjacent stacking units.
Dell EMC Networking N2100-ON Series switches have two fixed stacking
ports in the rear that accept mini-SAS cables. Dell EMC Networking
N3100-ON Series switches support an optional 2x21G or 2x40G stacking
module in the rear slot.