User Manual

Table Of Contents
NETGEAR M4500 Series Switches CLI Command Reference Manual 135
5.2.1.14.11. shutdown all
This command is used to disable all ports.
Format [no] shutdown all
Mode Global Config
5.2.1.14.12. fec
Enable forward error correction on the interface.
Note:
1. Different type of FEC should be applied on different speed. FEC CL74 is applied on 25G/50G interface, FEC
CL91 is applied on 100G/50G interface, and FEC CL108 is applied on 25G interface.
2. FEC enable/disable is applied to the first interface of each group, which works in the same way as the
command port-mode. For example, you can issue the fec CL108 command on ethernet port 0/1 but not on
ethernet port 0/2, 0/3, or 0/4; all the four ports from 0/1 to 0/4 are configured to CL108. For the 50G ports,
such as 0/161 and 0/162 on M4500-32C model, you can issue the fec CL91 command on ethernet port 0/161
but not on ethernet port 0/162; both ports, 0/161 and 0/162, are configured to CL91.
Format fec {CL74 | CL91 | CL108}
Default Enable
Mode Interface Config
5.2.1.14.13. negotiate
Use this command to enable auto-negotiation on a specific port. Auto-negotiation is supported on
100G/40G/25G ports with DAC cables. AOC cables and 50G/10G/1G ports do not support auto-negotiation.
Note:
Auto-negotiation is applied to the first interface of each group, which works in the same way as the port-
mode and fec commands. For example, you can issue the negotiate command on Ethernet port 0/1 but not
Parameter
Definition
no.
Reset to default.
Parameter
Definition
CL74
Enable CL74/Base-R FEC .
CL91
Enable CL91/RS FEC .
CL108
Enable Enable RS108 FEC .