I have 2 remote sites we will refer to as site 1 and site 2. Site 1 has 2 MFT VWICS. 1 VWIC connects to an MPLS Circuit and the other VWIC (E1 0/1/0) connects to a private (& Different carrier) Point to Point circuit that Conntects to Site 2. Site 2 has a Single VWIC and the Single Point to Point circuit. I am continually experiencing Line and Path Code errors on the Point to Point Circuit. The Telco indicates they do not provide clocking on the Point to Point Circuit. I have tried clocking this thing every which way I can think of and cannot eliminate the errors. I'm thinking the Point to Point circuit in the Site 1 router should be configured as clock source internal and in Site 2 the clock source should be line. Currently the config that seems to work best is as follows:
That kind of negates the claim by SP that they do not provide clock.
Note, not only is rare that no clock is provided on E1 circuits, but often SP answer from the first line of support without really knowing what they are talking about.
I think the errors on the circuit can be due not to clocking problem but faulty circuit, in that case you have to insist with SP even if they claim everything is OK. You can ask for a 48-hours BER test, make sure you are present in person to observe the way is conducted and the results.
So then your suggestion is to leave the config as defined in my first post? I have had the provider test this circuit several times... they insist the problem is with my equipment and suggest I replace the VWICS. It sounds to me as though I need them to remove their clocking signals from the line, is that why the circuit will not come up when the clock is set to internal?
When a circuit has problems with cisco routers, it is always the circuit fault. When that happens, you can use any clock configuration, the circuit will behave poorly anyway, as you noted. Beside, you cannot "remove" clock from a circuit, either is there, or not.
Telco will always blame the router and suggest you replace this and that, that never helped in my 20 yrs of experience in telecom, And, I never seen a faulty VWIC.
Moreover, their "test" is usually a quick one done without the customer seeing, and the firm intent to pass it and move on.
Ask for a BER test in your presence, with different test patterns. Ask the technician to show you how the test is actually done.
And stop payments until done to your satisfaction.
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.