Dell PowerStore 1200T EMC PowerStore Networking Guide for PowerStore T Models - Page 49

Direct interconnect not using MC-LAG

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MC-LAG interconnect with upstream links Additionally, in an MC-LAG environment the two switches are treated as one logical switch. This allows you to add all the upstream links from both switches into a single port channel that will span the MC-LAG as demonstrated in the following diagram. NOTE: Work with your network administrator if you will be connecting the ToR switches to upstream switches. PowerStore Network Topology with ToR Switches, MC-LAG Interconnect and Upstream Links Upstream Switch 1 Upstream Switch 2 Port Channel Top of Rack Switch 1 MC-LAG Interconnect Top of Rack Switch 2 Port X Port Y Node A Port Channels Port Y Port X Node B PowerStore T Appliance Figure 11. ToR switches with MC-LAG interconnect and upstream links Direct interconnect not using MC-LAG If MC-LAG is not used to interconnect the ToR switches, you can create a port channel between the ToR switches. When the ToR switches are connected using a Port Channel the 1st 2-ports in the PowerStore appliance 4-port card (system bond) reverts into an active/passive state. Switch requirements for deployments with storage services 49

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MC-LAG interconnect with upstream links
Additionally, in an MC-LAG environment the two switches are treated as one logical switch. This allows you to add all the
upstream links from both switches into a single port channel that will span the MC-LAG as demonstrated in the following
diagram.
NOTE:
Work with your network administrator if you will be connecting the ToR switches to upstream switches.
Node B
Node A
Top of Rack
Switch 2
Top of Rack
Switch 1
Port X
Port Y
Port Y
Port X
Upstream
Switch 2
Upstream
Switch 1
PowerStore T Appliance
Port Channel
MC-LAG
Interconnect
PowerStore Network Topology with
ToR Switches, MC-LAG Interconnect and
Upstream Links
Port Channels
Figure 11. ToR switches with MC-LAG interconnect and upstream links
Direct interconnect not using MC-LAG
If MC-LAG is not used to interconnect the ToR switches, you can create a port channel between the ToR switches.
When the ToR switches are connected using a Port Channel the 1st 2-ports in the PowerStore appliance 4-port card (system
bond) reverts into an active/passive state.
Switch requirements for deployments with storage services
49