Just recently we have received a few complaint from one of our site connected via Verizon MPLS.
Upon further troubleshooting we've identified that routing is off when tracerouting to a device on that remote site.
For some reason a traceroute to one of the ip local to site shows that it hit he PER ip address of the WAN router, then it bounce off to a CER ip address of another location within the region, then to the destination IP.
I've double check advertisement and made sure it was done correctly, and when asking verizon, their aswer is " its a false possitive caused by their CRS equipment".
We did some traffic analysis using netflow and verified that traffic is flowing to the right destination, and not being bounce off like the traceroute shows.
Moving along, we recently add another circuit at one other remote location, and for some reason it is indicating the same issue as the previous site, but this time with ATT.
The only similarities between the 2 site that shows this behavior is that both of them are fairly close in distance. I have a feeling that they might be connected to the same PE router.
Have anyone come aross this problem ?
Thanks
