Gigamon GigaVUE-HC3, Hardware Installation Manual

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120 GigaVUE-HC3 Hardware Installation Guide
Autonegotiation and External Fiber TAPs
When connecting a fiber port on the GigaVUE-HC3 node to an external TAP,
autonegotiation is disabled on the node’s fiber port, and cannot change.
Forcelinkup and Enabling/Disabling Ports
The GigaVUE-HC3 node includes both forcelinkup and admin arguments for the port
params command. The forcelinkup argument forces the link state on an optical tool
port connected to a legacy tool that does not transmit the light required to bring the link
up. The following table summarizes how traffic flows for different combinations of
port
params admin and port params forcelinkup applied to an optical tool port.
forcelinkup <disable | enable> Forces connection on an optical port. Use this option when an optical tool port is connected
to a legacy optical tool that does not transmit light.
Available as follows:
• Optical 10Gb tool ports
• 10Gb-capable optical tool ports only support forcelinkup when a 10Gb SFP+ is
installed.
speed <10 | 100 | 1000 | 10000> Sets the port speed in Mbps if autonegotiation is off.
Argument Description
forcelinkup = disable forcelinkup = enable
admin = enable
No traffic passed if
autonegotiation is not
successful. Traffic is passed.
admin = disable
No traffic passed. No traffic passed.