We have an issue that I am hoping someone else on these forums has seen before. We are moving from J-Series to SRX550, and our T3/DS3 links are not coming up. We triple-checked the configuration (and yes JTAC is involved), and it matches (pasted below).
The symptom is that we see physical link up and logical link down. We get framing errors, LOS and LOF. Put the J-Series back in place, everything comes right up; put the SRX550 in, link fails to establish. We see packets going out but no packets coming in.
It's maddening. Since it happened with two different ISPs on two different links, I am really hoping someone has seen this before and has the answer. We're with ATAC and the ISPs, but if we can short-cut and know "you should take a look at THIS," it'd help a ton. I'll bribe ya, if you have something good to share that helps us solve, there's definitely food and beer coming your way :).
t3-3/0/0 {
per-unit-scheduler;
encapsulation ppp;
t3-options {
compatibility-mode digital-link;
payload-scrambler;
fcs 32;
}
unit 0 {
description "A T3 circuit";
bandwidth 45m;
family inet {
address 192.168.1.1/30;
}
}
}