Dell PowerStore 9000X EMC PowerStore Network Planning Guide - Page 13

Multi-chassis Link Aggregation Group MC-LAG interconnect, Table 5. Vendor specific MC-LAG technology

Get Dell PowerStore 9000X PDF manuals and user guides View all Dell PowerStore 9000X manuals
Add to My Manuals
Save this manual to your list of manuals

Page 13 highlights

Multi-chassis Link Aggregation Group (MC-LAG) interconnect It is highly recommended that you deploy PowerStore with an MC-LAG interconnect between the two ToR switches. In an MC-LAG environment, the two switches are treated as one logical switch. This allows you to add all the uplinks from both switches into a single port channel that will span the MC-LAG. Layer 3 - Core Uplinks Uplink A Uplink B Layer 2 - ToR Switches MC-LAG Interconnect Port Channel Figure 11. ToR switches with MC-LAG interconnect NOTE: Port location for the reliable high speed uplinks may change depending on switch vendor or model. MC-LAG is a switch interconnection technology that joins a number of independent Top-of-Rack (ToR) switches into a single virtual chassis. MC-LAG allows the link aggregation (LAG) port groups to span multiple chassis, enabling better resilience of the LAG connection. Additionally, MC-LAG enables traffic going from switch to switch using the full bandwidth of the available connection, without using spanning tree protocol (STP), which would disable some links to prevent loops. MC-LAG is a general name for the technology, however certain vendors use their own proprietary terminology to define MCLAG connectivity. Table 5. Vendor specific MC-LAG technology Vendor Proprietary MC-LAG technology Dell Virtual Link Trunking (VLT) Cisco Virtual PortChannel (vPC) Brocade Multi-Chassis Trunking (MCT) NOTE: Refer to your vendor's documentation to determine their technology for MC-LAG. MC-LAG connectivity requirements are: ● A minimum of two connection cables in parallel with a high speed reliable connection. ● Connections must be made through the high speed ports on the switch. Verify with your switch provider documentation where the high speed ports are located on your switch. ● Use two cables that support connectivity between the high speed ports. For example 100Gbps Direct Attached Cables (DAC) would be required to connect the MC-LAG ports together. PowerStore models and network hardware overview 13

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
Multi-chassis Link Aggregation Group (MC-LAG) interconnect
It is highly recommended that you deploy PowerStore with an MC-LAG interconnect between the two ToR switches.
In an MC-LAG environment, the two switches are treated as one logical switch. This allows you to add all the uplinks from both
switches into a single port channel that will span the MC-LAG.
Layer 3 – Core Uplinks
Uplink A
Uplink B
Layer 2 – ToR Switches
Port Channel
MC-LAG
Interconnect
Figure 11. ToR switches with MC-LAG interconnect
NOTE:
Port location for the reliable high speed uplinks may change depending on switch vendor or model.
MC-LAG is a switch interconnection technology that joins a number of independent Top-of-Rack (ToR) switches into a single
virtual chassis. MC-LAG allows the link aggregation (LAG) port groups to span multiple chassis, enabling better resilience of the
LAG connection. Additionally, MC-LAG enables traffic going from switch to switch using the full bandwidth of the available
connection, without using spanning tree protocol (STP), which would disable some links to prevent loops.
MC-LAG is a general name for the technology, however certain vendors use their own proprietary terminology to define MC-
LAG connectivity.
Table 5. Vendor specific MC-LAG technology
Vendor
Proprietary MC-LAG technology
Dell
Virtual Link Trunking (VLT)
Cisco
Virtual PortChannel (vPC)
Brocade
Multi-Chassis Trunking (MCT)
NOTE:
Refer to your vendor's documentation to determine their technology for MC-LAG.
MC-LAG connectivity requirements are:
●
A minimum of two connection cables in parallel with a high speed reliable connection.
●
Connections must be made through the high speed ports on the switch. Verify with your switch provider documentation
where the high speed ports are located on your switch.
●
Use two cables that support connectivity between the high speed ports. For example 100Gbps Direct Attached Cables
(DAC) would be required to connect the MC-LAG ports together.
PowerStore models and network hardware overview
13