Issues through ATT core/backbone

[Veerender Attri <veerunanog () gmail com>]

We have a few circuits with ATT and a few VZ. Since friday we have seen
serveral intermittent issues throught ATT to reach various customers and our
various remote offices. If we swing the traffic through VZ interfaces using
static routes we can reach those locations fine. We were doing traceroutes
during the issue and we saw the traceroutes dying inside ATT network. I was
wondering if any one else saw similar issues ? On friday we saw issue
between ATT and GBLX peering point. We saw similar issue on tuesday. And
another one today.
We sent to ATT various traceroutes and opened a few tickets but didnt really
get any kind of confirmation. The problem seems to remedy itself on its own
after 10-30 minutes.

Please chime in if any one else saw similar issues transiting through AT&T
or global  crossing.