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Blinking "link" green light on my modem.

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Posted by
Visitor
Member Since: ‎06-03-2006
Posts: 3
Message 1 of 5 (3,070 Views)

Blinking "link" green light on my modem.

Modem is a cisco DPS 3.0. Is there a problem? and solution to go steady?
1 ACCEPTED SOLUTIONS
Posted by
Edited on
‎12-30-2009 09:16 AM

Silver Problem Solver

Member Since: ‎10-17-2003
Posts: 4,127
Message 4 of 5 (3,072 Views)

Re: Blinking "link" green light on my modem.

[ Edited ]

Depending on the modem and it's firmware, the link or activity light may always blink. This is whether or not ARP packets are filtered out or not. ARP (Address Resolution Protocol) packets are just background 'noise' from others on your node. They have no affect on your speed.

 

On the SB6120, the latest firmware has caused it's light to start blinking continuously.

 

The best way to check traffic is the WAN light, or more likely, the individual port lights, on your router.

Message Edited by andyross on 12-30-2009 08:16 AM
4 REPLIES
Posted by
Connection Expert

Member Since: ‎09-29-2007
Posts: 6,438
Message 2 of 5 (3,067 Views)

Re: Blinking "link" green light on my modem.

What is the name/label of the light that is blinking?

Sometimes a blinking light indicates traffic.

What does your Cisco Documentation say about the functionality of that light?

Posted by
Visitor
Member Since: ‎06-03-2006
Posts: 3
Message 3 of 5 (3,065 Views)

Re: Blinking "link" green light on my modem.

"link"
Posted by
Edited on
‎12-30-2009 09:16 AM

Silver Problem Solver

Member Since: ‎10-17-2003
Posts: 4,127
Message 4 of 5 (3,073 Views)

Re: Blinking "link" green light on my modem.

[ Edited ]

Depending on the modem and it's firmware, the link or activity light may always blink. This is whether or not ARP packets are filtered out or not. ARP (Address Resolution Protocol) packets are just background 'noise' from others on your node. They have no affect on your speed.

 

On the SB6120, the latest firmware has caused it's light to start blinking continuously.

 

The best way to check traffic is the WAN light, or more likely, the individual port lights, on your router.

Message Edited by andyross on 12-30-2009 08:16 AM
Posted by
Visitor
Member Since: ‎06-03-2006
Posts: 3
Message 5 of 5 (3,038 Views)

Re: Blinking "link" green light on my modem.

Thank-you.
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