Under the controller that you want to get your timing from, put the following:
controller t1 0/0/0
clock source line primary
The difference between you and I is that I was getting timing from the same provider for three different WICs.
What the above does is tell the router that controller x is going to be the primary clocking mechanism for the other cards. Then the network-clock-select command is setting the t1 controller to be the primary clocking source for all other cards on the router.
I had multiple wics in one router and getting timing from the provider. The cards were all fighting each other for timing, and I was seeing CRC, framing, input errors, and aborts before doing this.
John - thanks for the info. Glad to hear I'm not going crazy.
Question - would this be done on both routers? Or just the central or remote router?
A little more background...The central router (2811) has 6 T1 lines all configured to obtain clock from the line (provider sourced). The remote router (1841) has 2 T1 lines obtaining clock from the line also. These two lines are configured as the Multlink for both remote and central router. No other site (the other 4 T1 lines in the central router) are having issues.
When the errors occur - it is showing on both the central and remote router serial interfaces, so that would mean make the change to both routers.
My concern is if I made the change on the central router, that would require me to make changes on all other remote routers with the T1 connection to the central router. If it's needed, it's needed, I just wanted to follow KISS.
Well, you'll need to change the ones that you have control over. It will clear up on the other end (PE) on it's own. (Hopefully.) The provider saw a ton of errors coming from our equipment too until I made these changes. It took me DAYS to figure out how to fix it.
I know this is an old thread but i thought i would chime in an say that this worked for me. We were having the same issues described by the initial post with random CRC and Input errors. After setting the clock to internal and pointing it to the T1 card all issues were resolved. 2800 series router going to an older 3700 series. Worked like a charm for our T1 emulation.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...