Users Guide

238 Stacking
stacking module. Beginning with the 6.5.1 release, any stack containing any
N3000 Series switch (other than the N3000E-ON) is limited to a maximum
of eight units.
Dell EMC Networking N4000 Series switches stack with other Dell EMC
Networking N4000 Series switches over front-panel ports configured for
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,
N3048EP-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