I have a small shop here and use a 2516 to connect to an upstream Internet provider via a T1 and have an ISDN BRI dialbackup line using a Motorola NT1D. I know all are old units, but they work well, mostly.
A 2516 has two high speed serial ports and an ISDN BRI S/T port.
The problem is that from time to time, the dial backup doesn't work. From the logs, nothing seems out of place when I drop the T1 to test the dial backup. The BRI0 and it's :1 & :2 flip states, the layer 2 flips states, the Virtual-Access1 flips states and I see I am connected to the dedicated GW at my upstream ISP. All looks normal.
But once in a while, it doesn't pass traffic. It appears to be up and functioning with no unusual messages, but after 25-30 seconds, the dialups drop and re-connect, still with no traffic being passed. Pings from the ethernet and from the console fail.
This condition is 'fixed' by power cycling the NT1. Then the dial up connection will pass traffic like it should.
Is this a common problem? Or do I have an old NT1 that is just acting up or not able to correct itself?
I have two identical routers and both have done it at one time or another. Otherwise I am happy with these units and am not in a hurry to replace them.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
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