Interface 1/1/7 has some interface errors.  I will watch the interface over the next day or two to see if they increase.  Fil may trace the cable tomorrow and see what it goes to, there are no comments in the switch config.  I don't have good history, the switch was replaced but the network monitoring system didn't get updated so our stats are stale for that switch (I got it working in the network monitoring software today).

Some snooping around shows it to likely be connected to pwr-ey-h1fe-ac1.

The mac address table from the switch:

0019.8500.991d  1/1/7                Dynamic      99   

The arp table on the core (sh ip arp | include 0019.8500.991d):

70.3.99.10.in-addr.arpa name = pwr-ey-h1fe-ac1.cds.ligo-wa.caltech.edu.


The error counter on the switch:

1269 input errors, 0 CRC, 0 frame, 0 ignored
1269 runts, 0 giants