Flexible Port Mapping - Lenovo Flex System Fabric CN4093 Application Manual

Flexible Port Mapping

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CN4093 Application Guide for N/OS 8.4
Flexible Port Mapping allows administrators to manually enable or disable specific
switch ports within the limitations of the installed licenses' bandwidth.
For instance, the FlexSystem may include two compute nodes and a single QSFP+
uplink, while the current license has the INTA1 – INTA14 and EXT1 – EXT10
Ethernet ports enabled by default.
To make best use of the available resources, the administrator decides to activate
internal ports INTB1, INTB2, INTC1 and INTC2 to provide redundant connections
for the two compute nodes and to enable the high speed QSFP+ EXT3 port for the
uplink.
The total bandwidth required for this operation amounts to 80 Gbps (40 Gbps for
the four additional 10 Gbps internal ports and 40 Gbps for the additional external
QSFP+ port). The administrator decides to allocate this bandwidth by deactivating
6 internal and 2 external 10 Gbps ports.
To implement the above scenario, follow these steps:
a. Deactivate the ports required to clear the 80 Gbps required bandwidth:
CN4093(config)# no boot port-map INTA9
CN4093(config)# no boot port-map INTA10
CN4093(config)# no boot port-map INTA11
CN4093(config)# no boot port-map INTA12
CN4093(config)# no boot port-map INTA13
CN4093(config)# no boot port-map INTA14
CN4093(config)# no boot port-map EXT9
CN4093(config)# no boot port-map EXT10
b. Activate the required ports:
CN4093(config)# boot port-map INTB1
CN4093(config)# boot port-map INTC1
CN4093(config)# boot port-map INTB2
CN4093(config)# boot port-map INTC2
CN4093(config)# boot port-map EXT3
c. To verify the configuration, run the following command:
CN4093(config)# show boot port-map
Flexible Port Mapping is disabled if all available licenses are installed (all physical
ports are available).
Removing a license key reverts the port mapping to the default settings for the
remaining licensing level. To manually revert the port mapping to the default
settings use the following command:
CN4093(config)# default boot port-map