Procedure
Purpose
Command or Action
Enters global configuration mode.
configure terminal
Example:
switch# configure terminal
switch(config)#
Step 1
Enters configuration mode for the specified FEX.
fex chassis_id
Step 2
Example:
switch(config)# fex 100
switch(config-fex)#
The range of the
chassis_id
value is 100 to 199.
Specifies the no-drop distance between the FEX
and the switch.
hardware N2248TP-E
uplink-pause-no-drop distance
distance-value
Step 3
The maximum distance is 3000 meters.
Example:
switch(config-fex)# hardware N2248TP-E
uplink-pause-no-drop distance 3000
The
hardware N2248TP-E
uplink-pause-no-drop distance
command
specifies the default 300 meter cable
length.
Note
This example shows how to configure the uplink distance.
switch#
configure terminal
switch(config)#
fex 100
switch(config-fex)#
hardware N2248TP-E uplink-pause-no-drop distance 3000
switch(config-fex)#
Configuring the Cisco Nexus N2248PQ Fabric Extender
The Cisco Nexus 2248PQ Fabric Extender supports all of the CLI commands of the Cisco Nexus 2248TP
Fabric Extender with additional commands to configure the following:
•
Shared buffer (FEX global level)
•
Load-balancing queues (FEX global level)
•
No drop class over a distance of 3000 meters between the FEX and switch (FEX global level)
Configuring the Shared Buffer
The following are guidelines for the configuration of the shared buffer:
•
Configuring the shared buffer is done at the FEX global level.
•
The total available buffer is 16 MB which is shared in both the ingress and egress directions.
•
The default size of the shared buffer is 10240KB.
Cisco Nexus 6000 Series NX-OS Layer 2 Switching Configuration Guide, Release 7.x
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Configuring the Fabric Extender
Configuring the Cisco Nexus N2248PQ Fabric Extender
