Dell PowerSwitch S4128F-ON EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 120

SmartFabric Services Components, Fabric links, Internal networks for building a fabric

Page 120 highlights

For the S3048-ON management switches, all ports are in L2 and in the default VLAN. SmartFabric Services Components The SFS components are network fabric, VLT fabric or rack, switches, and links. Supported network topologies • Two leaf switches with VLT pair without any spine switch • Two leaf switches with single spine switch or multiple spines switches • Multiple leaf switches or VLT pairs with single or multiple spine switches • Leafs without VLT interconnect (VLTi) with single or multiple spine switches Network fabric Network fabric is a fabric that consists of switches that are connected in the cluster. The fabric includes leafs and spine switches. Enabling SFS creates a network fabric automatically in a leaf and spine network. The network fabric is autoassigned with a fabric-ID, a name, and description. NOTE: Before creating the SmartFabric for IOM nodes, ensure that nodes are online by executing the show smartfabric cluster member command in the DNV master node. You can identify DNV Master node by executing the show smartfabric cluster command in any node. VLT fabrics VLT fabric is a fabric that is created for a VLT pair. The VLT fabric includes two leaf switches, and SFS creates a VLT fabric automatically in the leaf and spine environment. VLT fabric is autoassigned with a fabric-ID, a universally unique identifier (UUID). NOTE: In SFS, when a VLT fabric is created, the management IP addresses of the VLT peers is used automatically to set up the VLT backup link. If the management IP address of the peers is changed after the fabric is created, the VLT backup link is updated automatically. Switch roles Switch role defines the role of the switch that is deployed in the leaf and spine topology. Spine and leaf are the industry standard terms in any Clos topology. The roles are: Leaf: • A switch in a rack that connects to a spine switch. The server or the end device is connected to the fabric through a leaf switch. • The switch can also be connected to external network using L3 Routed, L3 VLAN, VXLAN, or general-purpose networks. Spine: • A switch that connects multiple leaf switches. • The spine switch can be connected to external network through L3 Routed or L3 VLAN network. Fabric links Fabric links create a connection between the switches in a network fabric. The types are: • Interswitch link (ISL) : A link between a leaf and a spine. All parallel links with same connectivity are grouped to form a LAG interface. This link is called ISL. • Intercluster links (ICL) or VLTi: A link between two leaf switches in same rack. Internal networks for building a fabric The VLANs in the range from 4000 to 4094 are reserved for SFS internal use. NOTE: You are not allowed to use these VLANs for general use. • Cluster control VLAN 4000 - SFS automatically configures VLAN 4000 on all the switches in a fabric, and uses the network for all internal fabric operations. When SFS detects an ISL, it assigns the ISL to the tagged member of this VLAN. This VLAN is PVST enabled with root bridge that is forced on one of a spine switch. • IP-peer VLAN 4001 to 4079 - SFS automatically configures the leaf and spine network using eBGP as the routing protocol. SFS uses the reserved VLAN range from 4001 to 4079 for automatic IP addressing to set up the peer connections. When SFS detects an 120 SmartFabric Services

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  • 1,290
  • 1,291
  • 1,292
  • 1,293
  • 1,294
  • 1,295
  • 1,296
  • 1,297
  • 1,298
  • 1,299
  • 1,300
  • 1,301
  • 1,302
  • 1,303
  • 1,304
  • 1,305
  • 1,306
  • 1,307
  • 1,308
  • 1,309
  • 1,310
  • 1,311
  • 1,312
  • 1,313
  • 1,314
  • 1,315
  • 1,316
  • 1,317
  • 1,318
  • 1,319
  • 1,320
  • 1,321
  • 1,322
  • 1,323
  • 1,324
  • 1,325
  • 1,326
  • 1,327
  • 1,328
  • 1,329
  • 1,330
  • 1,331
  • 1,332
  • 1,333
  • 1,334
  • 1,335
  • 1,336
  • 1,337
  • 1,338
  • 1,339
  • 1,340
  • 1,341
  • 1,342
  • 1,343
  • 1,344
  • 1,345
  • 1,346
  • 1,347
  • 1,348
  • 1,349
  • 1,350
  • 1,351
  • 1,352
  • 1,353
  • 1,354
  • 1,355
  • 1,356
  • 1,357
  • 1,358
  • 1,359
  • 1,360
  • 1,361
  • 1,362
  • 1,363
  • 1,364
  • 1,365
  • 1,366
  • 1,367
  • 1,368
  • 1,369
  • 1,370
  • 1,371
  • 1,372
  • 1,373
  • 1,374
  • 1,375
  • 1,376
  • 1,377
  • 1,378
  • 1,379
  • 1,380
  • 1,381
  • 1,382
  • 1,383
  • 1,384
  • 1,385
  • 1,386
  • 1,387
  • 1,388
  • 1,389
  • 1,390
  • 1,391
  • 1,392
  • 1,393
  • 1,394
  • 1,395
  • 1,396
  • 1,397
  • 1,398
  • 1,399
  • 1,400
  • 1,401
  • 1,402
  • 1,403
  • 1,404
  • 1,405

For the S3048-ON management switches, all ports are in L2 and in the default VLAN.
SmartFabric Services Components
The SFS components are network fabric, VLT fabric or rack, switches, and links.
Supported network topologies
Two leaf switches with VLT pair without any spine switch
Two leaf switches with single spine switch or multiple spines switches
Multiple leaf switches or VLT pairs with single or multiple spine switches
Leafs without VLT interconnect (VLTi) with single or multiple spine switches
Network fabric
Network fabric is a fabric that consists of switches that are connected in the cluster. The fabric includes leafs and spine switches.
Enabling SFS creates a network fabric automatically in a leaf and spine network. The network fabric is autoassigned with a fabric-ID, a
name, and description.
NOTE:
Before creating the SmartFabric for IOM nodes, ensure that nodes are online by executing the show smartfabric
cluster member command in the DNV master node. You can identify DNV Master node by executing the show
smartfabric cluster command in any node.
VLT fabrics
VLT fabric is a fabric that is created for a VLT pair. The VLT fabric includes two leaf switches, and SFS creates a VLT fabric automatically
in the leaf and spine environment. VLT fabric is autoassigned with a fabric-ID, a universally unique identifier (UUID).
NOTE:
In SFS, when a VLT fabric is created, the management IP addresses of the VLT peers is used automatically to set
up the VLT backup link. If the management IP address of the peers is changed after the fabric is created, the VLT
backup link is updated automatically.
Switch roles
Switch role defines the role of the switch that is deployed in the leaf and spine topology. Spine and leaf are the industry standard terms in
any Clos topology. The roles are:
Leaf:
A switch in a rack that connects to a spine switch. The server or the end device is connected to the fabric through a leaf switch.
The switch can also be connected to external network using L3 Routed, L3 VLAN, VXLAN, or general-purpose networks.
Spine:
A switch that connects multiple leaf switches.
The spine switch can be connected to external network through L3 Routed or L3 VLAN network.
Fabric links
Fabric links create a connection between the switches in a network fabric. The types are:
Interswitch link (ISL) : A link between a leaf and a spine.
All parallel links with same connectivity are grouped to form a LAG interface. This link is called ISL.
Intercluster links (ICL) or VLTi: A link between two leaf switches in same rack.
Internal networks for building a fabric
The VLANs in the range from 4000 to 4094 are reserved for SFS internal use.
NOTE:
You are not allowed to use these VLANs for general use.
Cluster control VLAN 4000
— SFS automatically configures VLAN 4000 on all the switches in a fabric, and uses the network for all
internal fabric operations. When SFS detects an ISL, it assigns the ISL to the tagged member of this VLAN. This VLAN is PVST
enabled with root bridge that is forced on one of a spine switch.
IP-peer VLAN 4001 to 4079
— SFS automatically configures the leaf and spine network using eBGP as the routing protocol. SFS
uses the reserved VLAN range from 4001 to 4079 for automatic IP addressing to set up the peer connections. When SFS detects an
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SmartFabric Services