Dell PowerStore 9000X EMC PowerStore Network Planning Guide - Page 12

Top-of-Rack (ToR) switch connectivity options and requirements

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PowerStore X model logical topology Figure 10. PowerStore X model logical topology and network paths Top-of-Rack (ToR) switch connectivity options and requirements PowerStore requires connectivity to a pair of Top-of-Rack (ToR) switches. This section describes the requirements for: ● Switch to switch (L2) connectivity ● Node to ToR switch connectivity NOTE: PowerStore T model deployments also require connectivity to at least one out-of-band management switch. See PowerStore T model appliance out-of-band management switch requirements for details. Switch to switch (L2) connectivity options It is recommended to use one of the following options to connect the switches together. Table 4. Switch to switch interconnect options Switch interconnect options Recommendation 1. Multi-chassis Link Dell highly recommends using MC-LAG for connectivity between the switches. Aggregation Group (MC-LAG) 2. Reliable L2 uplinks If MC-LAG is not an option, then the next best recommended connectivity between the switches is to use reliable L2 uplinks. NOTE: If neither MC-LAG or reliable L2 uplinks is an option, you can use a Direct Trunk Link, but this is not recommended. 12 PowerStore models and network hardware overview

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PowerStore X model logical topology
Figure 10. PowerStore X model logical topology and network paths
Top-of-Rack (ToR) switch connectivity options and
requirements
PowerStore requires connectivity to a pair of Top-of-Rack (ToR) switches.
This section describes the requirements for:
●
Switch to switch (L2) connectivity
●
Node to ToR switch connectivity
NOTE:
PowerStore T model deployments also require connectivity to at least one out-of-band management switch.
See
PowerStore T model appliance out-of-band management switch requirements
for details.
Switch to switch (L2) connectivity options
It is recommended to use one of the following options to connect the switches together.
Table 4. Switch to switch interconnect options
Switch interconnect
options
Recommendation
1. Multi-chassis Link
Aggregation Group (MC-LAG)
Dell highly recommends using MC-LAG for connectivity between the switches.
2. Reliable L2 uplinks
If MC-LAG is not an option, then the next best recommended connectivity between the
switches is to use reliable L2 uplinks.
NOTE:
If neither MC-LAG or reliable L2 uplinks is an option, you can use a Direct Trunk Link, but this is not recommended.
12
PowerStore models and network hardware overview