Users Guide

MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 40000 Mbit
<output truncated for brevity>
For information about which optics and transceivers are supported, contact your Dell representative.
Splitting 100G Ports
The platform supports splitting a single 100G QSFP 28 port into any of the following ports:
• Two 50G ports
• Four 25G ports
• One 40G port
• Four 10G ports
NOTE: You can use the supported breakout cables (for a list of supported cables, refer to the Installation Guide or the Release
Notes).
To split a single 100G port into 50G, 25G, 40G, and 10G ports, use the following commands:
• Split a 100G port into two 50G ports.
CONFIGURATION Mode
stack-unit stack-unit-number port number portmode dual speed 50G
• stack-unit-number: enter the stack member unit identier of the stack member to reset.
• number: enter the port number of the 100G port to be split. The range is from 1 to 32.
• Split a 100G port into four 25G ports.
CONFIGURATION Mode
stack-unit stack-unit-number port number portmode quad speed 25G
• stack-unit-number: enter the stack member unit identier of the stack member to reset.
• number: enter the port number of the 100G port to be split. The range is from 1 to 32.
• Split a 100G port into one 40G ports.
CONFIGURATION Mode
stack-unit stack-unit-number port number portmode single speed 40G
• stack-unit-number: enter the stack member unit identier of the stack member to reset.
• number: enter the port number of the 100G port to be split. The range is from 1 to 32.
• Split a 100G port into four 10G ports.
CONFIGURATION Mode
stack-unit stack-unit-number port number portmode quad speed 10G
• stack-unit-number: enter the stack member unit identier of the stack member to reset.
• number: enter the port number of the 100G port to be split. The range is from 1 to 32.
Link Dampening
Interface state changes occur when interfaces are administratively brought up or down or if an interface state changes.
Every time an interface changes a state or aps, routing protocols are notied of the status of the routes that are aected by the change in
state. These protocols go through the momentous task of re-converging. Flapping; therefore, puts the status of entire network at risk of
transient loops and black holes.
Link dampening minimizes the risk created by apping by imposing a penalty for each interface ap and decaying the penalty exponentially.
After the penalty exceeds a certain threshold, the interface is put in an Error-Disabled state and for all practical purposes of routing, the
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Interfaces