Install Guide

SFP+ 3/1 Id = 0x0d
SFP+ 3/1 Ext Id = 0x00
SFP+ 3/1 Connector = 0x23
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Dell#show interfaces tengigabitethernet 1/4/1 transceiver
SFP 4/1 Serial ID Base Fields
SFP 4/1 Id = 0x0d
SFP 4/1 Ext Id = 0x00
SFP 4/1 Connector = 0x23
SFP 4/1 Transceiver Code = 0x08 0x00 0x00 0x00 0x00 0x00 0x00 0x00
SFP 4/1 Encoding = 0x00
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SFP 4/1 Diagnostic Information
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SFP 4/1 Rx Power measurement type = OMA
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SFP 4/1 Temp High Alarm threshold = 0.000C
SFP 4/1 Voltage High Alarm threshold = 0.000V
SFP 4/1 Bias High Alarm threshold = 0.000mA
Configuring wavelength for 10–Gigabit SFP+ optics
You can set the wavelength for tunable 10–Gigabit SFP+ optics using the wavelength command. To set the wavelength,
follow these steps:
● Enter the interface mode and set the wavelength.
INTERFACE mode
wavelength 1529.0
The wavelength range is from 1528.3 nm to 1568.77nm.
● Verify configuration changes.
INTERFACE mode
show config
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 flaps, routing protocols are notified of the status of the routes that are affected 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. Dampening limits the notification of status to the routing protocols.
Link dampening minimizes the risk created by flapping by imposing a penalty (1024) for each interface flap and decaying the
penalty exponentially based on the half-time. When the accumulated penalty exceeds a certain threshold (suppress threshold),
the interface is put in an Error-Disabled state and for all practical purposes of routing, the interface is deemed to be “down.”
After the interface becomes stable and the penalty decays below a certain threshold (reuse threshold), the interface comes up
again and the routing protocols re-converge.
You configure link dampening using the dampening [[[[half-life] [reuse-threshold]] [suppress-
threshold]] [max-suppress-time]] command on the interface.
Following is the detailed explanation of interface state change events:
● suppress-threshold— The suppress threshold is a value that triggers a flapping interface to dampen. The system
adds penalty when the interface state goes up and down. When the accumulated penalty reaches the default or configured
suppress threshold, the interface state changes to Error-Disabled state. The range of suppress threshold is from 1 to 20000.
The default is 2500.
● half-life— The accumulated penalty decays exponentially based on the half-life period. The accumulated penalty
decreases half after each half-life period. The range of half-life is from 1 to 30 seconds. The default is 5 seconds.
Interfaces
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