Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 79

Virtual ports

Page 79 highlights

Eth 1/1/21:1 Eth 1/1/21:2 Eth 1/1/21:3 Eth 1/1/21:4 Eth 1/1/22:1 Eth 1/1/22:2 Eth 1/1/22:3 Eth 1/1/22:4 ... down 0 down 0 down 0 down 0 down 0 down 0 down 0 down 0 Virtual ports auto auto auto auto auto auto auto auto A 1 A 1 A 1 A 1 A 1 A 1 A 1 A 1 - A virtual port is a logical OS10 port that connects to a downstream server and has no physical hardware location on the switch. Virtual ports are created when an MX9116n Fabric Switching Engine onboards an MX7116n Fabric Expander Module. The onboarding process consists of discovery and configuration. Fabric Expander discovery A Fabric Expander functions as an unmanaged Ethernet repeater with sixteen 25GE server-facing ports and two QSFP28-DD uplink ports. An attached Fabric Switching Engine in Full Switch mode automatically discovers the Fabric Expander when these conditions are met: • The Fabric Expander is connected to the Fabric Engine by attaching a cable between a QSFP28-DD port on each device. • On the Fabric Engine, the QSFP28-DD port-group connected to the Fabric Expander is in 25g-8x fabric-expander-mode mode. • At least one compute sled is installed in the MX7000 chassis containing the Fabric Expander. NOTE: If you move a Fabric Expander by cabling it to a different QSFP28-DD port on the Fabric Engine, all software configurations on virtual ports are maintained. Only the QSFP28-DD breakout interfaces that map to the virtual ports change. NOTE: If the servers in the MX7000 chassis have dual-port NICs, connect the Fabric Engine only to QSFP28-DD port 1 on the Fabric Expander. Do not connect to QSFP28-DD port 2. To verify the auto-discovered Fabric Expanders, enter the show discovered-expanders command. OS10# show discovered-expanders Service-tag Model Type Chassis-service-tag Chassis-slot Port-group Virtual-Slot-Id 403RPK2 MX7116n Fabric 1 SKY003Q A2 port-group1/1/2 Expander Module Fabric Expander virtual slot configuration If the Fabric Switching Engine is in SmartFabric mode, an attached Fabric Expander is automatically configured: • Virtual ports on the Fabric Expander and a virtual slot ID are created and mapped to 8x25GE breakout interfaces in FEM mode on the Fabric Engine. • The unit ID is automatically discovered. • Server traffic is transmitted through the QSFP28-DD uplink on the Fabric Expander to the Fabric Engine. If the Fabric Switching Engine is in Full Switch mode, you can perform the same switch configuration using the CLI as in SmartFabric mode using the graphical user interface, except that you must manually configure the unit ID of the Fabric Expander. The unit ID is also called the virtual slot ID. 1 Locate the service tag of the Fabric Expander in the show discovered-expanders output. 2 Display the unassigned unit IDs reserved for Fabric Expanders in EXEC mode. The service tags of provisioned Fabric Expanders are displayed in the Provision Name column of the show unit-provision output. OS10# show unit-provision Node ID | Unit ID | Provision Name | Discovered Name | State PowerEdge MX Ethernet I/O modules 79

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Eth 1/1/21:1
down
0
auto
A
1
-
Eth 1/1/21:2
down
0
auto
A
1
-
Eth 1/1/21:3
down
0
auto
A
1
-
Eth 1/1/21:4
down
0
auto
A
1
-
Eth 1/1/22:1
down
0
auto
A
1
-
Eth 1/1/22:2
down
0
auto
A
1
-
Eth 1/1/22:3
down
0
auto
A
1
-
Eth 1/1/22:4
down
0
auto
A
1
-
...
Virtual ports
A virtual port is a logical OS10 port that connects to a downstream server and has no physical hardware location on the switch. Virtual
ports are created when an MX9116n Fabric Switching Engine onboards an MX7116n Fabric Expander Module. The onboarding process
consists of discovery and
configuration.
Fabric Expander discovery
A Fabric Expander functions as an unmanaged Ethernet repeater with sixteen 25GE server-facing ports and two QSFP28-DD uplink ports.
An attached Fabric Switching Engine in Full Switch mode automatically discovers the Fabric Expander when these conditions are met:
The Fabric Expander is connected to the Fabric Engine by attaching a cable between a QSFP28-DD port on each device.
On the Fabric Engine, the QSFP28-DD port-group connected to the Fabric Expander is in
25g-8x fabric-expander-mode
mode.
At least one compute sled is installed in the MX7000 chassis containing the Fabric Expander.
NOTE:
If you move a Fabric Expander by cabling it to a
different
QSFP28-DD port on the Fabric Engine, all software
configurations
on virtual ports are maintained. Only the QSFP28-DD breakout interfaces that map to the virtual ports change.
NOTE:
If the servers in the MX7000 chassis have dual-port NICs, connect the Fabric Engine only to QSFP28-DD port 1 on the
Fabric Expander. Do not connect to QSFP28-DD port 2.
To verify the auto-discovered Fabric Expanders, enter the
show discovered-expanders
command.
OS10# show discovered-expanders
Service-tag
Model
Type Chassis-service-tag Chassis-slot Port-group Virtual-Slot-Id
------------------------------------------------------------------------------------------
403RPK2
MX7116n Fabric
1
SKY003Q
A2
port-group1/1/2
Expander Module
Fabric Expander virtual slot
configuration
If the Fabric Switching Engine is in SmartFabric mode, an attached Fabric Expander is automatically
configured:
Virtual ports on the Fabric Expander and a virtual slot ID are created and mapped to 8x25GE breakout interfaces in FEM mode on the
Fabric Engine.
The unit ID is automatically discovered.
Server
traffic
is transmitted through the QSFP28-DD uplink on the Fabric Expander to the Fabric Engine.
If the Fabric Switching Engine is in Full Switch mode, you can perform the same switch
configuration
using the CLI as in SmartFabric mode
using the graphical user interface, except that you must manually
configure
the unit ID of the Fabric Expander. The unit ID is also called the
virtual slot ID
.
1
Locate the service tag of the Fabric Expander in the
show discovered-expanders
output.
2
Display the unassigned unit IDs reserved for Fabric Expanders in EXEC mode. The service tags of provisioned Fabric Expanders are
displayed in the
Provision Name
column of the
show unit-provision
output.
OS10# show unit-provision
Node ID | Unit ID | Provision Name | Discovered Name | State |
--------+---------+----------------+-----------------+-------|
PowerEdge MX Ethernet I/O modules
79