We've seen some noise issues on calls on our CUCM.
We have 3 PRI/T1 with our service provide Paetec. And 2 PRI and 1 T1 set up between our Rolm 9751 and CUCM.
All PRI/T1 have high numbers of Total Rx RPT lost pkts (over 4 billions each) when looking at device status. Occasionally I can catch a Total Rx RPT lost pkts on specific ports when looking at the PORT status, but mostly these run clean. As usage increases on a PRI, the rate of lost pkts increases too.
1. Is there a way to clear the device Total RX RPT lost pkts counts?
2. Is there a correlation between the Device Total RX RPT lost pkts and the noisy calls we're hearing?
3. Where do I look to resolve this.
I do not see errors on the Rolm 9751 side of the PRI's.
It took awhile, but I now have all the PRIs set to 1 clock source. Paetec to our Rolm 9751 T1 to Span 7 on the 6608. All the PRI on the CCM from Paetec and internally get the clock from Span 7. Traffic looked clean for about 2 hours, than 1 Lost Pkt followed by 246 lost packets, and finally, 4 billion. I actually caught a Port status which shows port 22 with RTP Sent Pkts of 318, RTP Rcvd pkts of 318 and Lost RX pkts of 4294901760. All of our PRI/T1 show lost pkts of over 4 billion.
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