Administrator Guide

LineSpeed 1000 Mbit
Dell#show interfaces tengigabitethernet 0/8
TenGigabitEthernet 0/0 is up, line protocol is up
Hardware is DellEth, address is 90:b1:1c:f4:9a:fa
Current address is 90:b1:1c:f4:9a:fa
Pluggable media present, QSFP type is 4x10GBASE-CR1-3M
……..
LineSpeed 10000 Mbit
The show inventory command shows the following output:
NOTE: In the following show inventory media command output, the port numbers 1, 2, 3, 5, 6, and 7 ports are actually
inactive. However, Dell Networking OS still shows that optical cables are inserted into these ports. This is a software limitation
for this release.
Dell# show inventory media
Slot Port Type Media Serial Number
-------------------------------------------------------------------
0 0 SFP+ 10GBASE-SX APF12420031B3P
0 1 SFP+ 10GBASE-SX APF12420031B3P
0 2 SFP+ 10GBASE-SX APF12420031B3P
0 3 SFP+ 10GBASE-SX APF12420031B3P
0 4 SFP 10GBASE-SX APF12420031B3P
0 5 SFP 10GBASE-SX APF12420031B3P
0 6 SFP 10GBASE-SX APF12420031B3P
0 7 SFP 10GBASE-SX APF12420031B3P
0 8 QSFP 4x10GBASE-CR1-3M APF12420031B3P
0 9 QSFP 4x10GBASE-CR1-3M APF12420031B3P
0 10 QSFP 4x10GBASE-CR1-3M APF12420031B3P
0 11 QSFP 4x10GBASE-CR1-3M APF12420031B3P
0 12 QSFP 40GBASE-SR4
Conguring 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 conguration 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 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
interface is deemed to be “down.” After the interface becomes stable and the penalty decays below a certain threshold, the interface
comes up again and the routing protocols re-converge.
Interfaces
409