01-18-2006 02:49 PM - edited 03-03-2019 11:29 AM
Hi,
I have two routers connected via serial point-to-point link; right now it works without any clocking commands, but gives
some CRC errors & carrier transitions -to overcome these problems,what is the recommended/best clockrate, and needs to be set on only one router?
Thanks
-Tennisman.
01-18-2006 02:58 PM
Hello,
CRC errors are likely to mean that there are potential issues with line framing etc. Could you check that your framing is configured correctly, as per your carrier's instructions ? You can see this using 'show controller'...
Hope that helps - pls rate the post if it does.
Regards,
Paresh.
01-18-2006 03:01 PM
One more thing.. clocking mis-configuration is likely to result in clock slips and not CRC errors so I don't think that is the issue..
However, ensure that your T1s at both ends are using the line as the clock source. Unless you are connecting them back-to-back (without going through a provider's network), configuring both to get clock from the line is fine.
Hope that helps - pls rate the post if it does.
Regards,
Paresh.
01-18-2006 07:46 PM
What kind of routers do you have?
Are you using internal WIC-1DSU-T1, or do you have WIC-1T (or 2T) with external DSU?
01-19-2006 09:19 AM
I was having the same issue, CRC, Input errors, and carrier transitions. Replacing the RJ45 cable to the smart jack from one of the router's seems to have corrected it. I also made sure one of the routers was set to clock source internal
config-if#service-mod t1 clock source internal
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide