•
The number of leaf switches depends on the number of uplinks used and the number of ports available
on the spine switch.
•
The uplink bandwidth from each leaf switch must be equal to the bandwidth provided to the endpoints.
•
If possible, Cisco recommends overprovisioning uplinks to account for failures.
•
As a best practice, use Layer 3 ports that go to the endpoints with a /30 mask. Assign one IP address to
the endpoint and another to the switch interface.
•
Cisco recommends that you choose the maximum bandwidth per flow. A constant or almost constant
bandwidth rate is assumed. If you expect bursts of traffic in your IP fabric, consider reserving this value
at a peak rate to prevent congestion.
•
No two sources can transmit to the same multicast group at the same time. Also, when a given source
stops transmitting traffic, the multicast group must time out before a new source can start transmitting
to the same group.
Configuring NBM
Licensing Requirements
License RequirementProduct
The IP fabric for media solution requires an Enterprise Services license and a Network
Services license. For a complete explanation of the Cisco NX-OS licensing scheme and how
to obtain and apply licenses, see the Cisco NX-OS Licensing Guide.
Cisco
NX-OS
Configuring NBM
After you have set up the IP fabric, you must enable the NBM feature and set the flow bandwidth on the spine
switch and each leaf switch. The NBM feature ensures that the bandwidth that is coming into the fabric is
exactly the same as the bandwidth that is going out.
Before You Begin
Enable the SPT threshold infinity using the ip pim spt-threshold infinity command.
Procedure
PurposeCommand or Action
Enters global configuration mode.configure terminal
Example:
switch# configure terminal
switch(config)#
Step 1
Cisco Nexus 9000 Series NX-OS IP Fabric for Media Solution Guide, Release 7.0(3)I4(2)
12
Configuring IP Fabric for Media
Configuring NBM
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