We have 2900 series LRE Switch . It has been working fine for past 1 year. The CPE is connected through Telephone Line (EPBAX ) . Now I'm getting some problem . On the Switch side , the LRE port which is connected with CPE gives Orange light and it does not stay for a long (It comes and goes) . On the CPE side , the Ready light also comes to Green and goes off .What could be the problem?.
when the green light goes off, that usually means that there is no link. The orange light means that there is a link fault (which means that there can be error frames that can affect connectivity, errors such as excessive collisions, CRC errors, and/or alignment and jabber errors)
It could also mean that the port is not forwarding and that the port was disabled by management, by an address violation, or by Spanning Tree Protocol (STP).
After the port is reconfigured, the port LED can remain amber/orange for up to 30 seconds as STP checks the switch for possible loops.
Check if you can see errors on the LRE port (maybe you can post the output of the show interface command for the relevant interface).
In case there is a Spanning-Tree problem, check this document (I think you need a CCO login to view it):
Troubleshooting Spanning-Tree Protocol and Related Design Considerations
Thanks Georg. It's not STP problem . The problem is not with Fast ethernet port .Fast Ethernet port gives green light and stays permanently .The problem is with LRE Port(s). I've changed the CPE and the problem still persists . When I check logging on LRE switch , it gives following error . I'm posting part of my config also (LRE port configuration).
Explanation: When the switch reloads or when the LRE link is lost, the LRE port first attempts to briefly establish link with the CPE in a common, reduced rate mode. This is so that the switch can exchange configuration information with the CPE to achieve the link rate of the profile configured for the port. When the reduced rate is achieved, link is dropped briefly, and the LRE and CPE ports attempt to establish the profile link rate. If, after a time (typically 30 seconds), no LRE link is established, this message appears, and the port LED is amber. The port continues to attempt to establish link, starting from the reduced rate. This message could also mean that the switch or CPE is faulty.
Action: Change the profile on the port to one that has a lower rate or has a longer reach. There might be too many impairments on the connection between the switch and the CPE for the ports to sustain the profile rate. If you suspect the switch or CPE is faulty, contact Cisco Systems.
AFAIK, changing the profile should be done after consulting with the provider. Anyway, here is a link that describes how to change the default profile:
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.