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C H A P T E R 2 Gigabit Ethernet Modules
15
Link LED is not lit. Dirty optics. Try different ports
and reverse the cable
(if possible). Replace
the cable. If replacing
the cable fails to help,
clean the optics.
Bad cable or incorrect
cable adapter
orientation.
Auto-negotiation
mode does not agree
with remote link
partner.
Change auto-
negotiation mode for
either link partner so
that they agree.
Active Link, cannot
communicate with
other stations from
the user console.
Management
interface not IP
configured.
Use ifconfig
command, BOOTP
or RARP to
configure sw1
interface.
Active Link, cannot
communicate with
station on a non-
Gigabit Ethernet port
from a station on a
Gigabit Ethernet port.
Invalid VLAN
configuration.
Verify the VLAN
configuration.
Symptom Possible Cause Course of Action