[j-nsp] 100mbps bandwidth on a logical interface

[Jonathan Call]

I have a  Gigabit Ethernet port on an EX4200 that is performing very poorly. It maxes out at about 120Mbps under heavy load. During that heavy load I see MAC pause frame values increasing as well as dropped packets in the queue counters. All of this points to the server being the culprit. However I'm seeing something unusual in the "show interface extensive" output. In one spot it says:

  Autonegotiation information:
    Negotiation status: Complete
    Link partner:
        Link mode: Full-duplex, Flow control: Symmetric, Remote fault: OK,
        Link partner Speed: 1000 Mbps
    Local resolution:
        Flow control: Symmetric, Remote fault: Link OK
 
Those values are no surprise. But then just a little further down it says:

Logical interface ge-0/0/27.0 (Index 123) (SNMP ifIndex 598) (Generation 190)
    Flags: SNMP-Traps 0x0 Encapsulation: ENET2
    Bandwidth: 100mbps
    Traffic statistics:
     Input  bytes  :                32116
     Output bytes  :              2551284
     Input  packets:                  146
     Output packets:                21977
    Local statistics:
     Input  bytes  :                32116
     Output bytes  :              2551284
     Input  packets:                  146
     Output packets:                21977
    Transit statistics:
     Input  bytes  :                    0                    0 bps
     Output bytes  :                    0                    0 bps
     Input  packets:                    0                    0 pps
     Output packets:                    0                    0 pps
    Protocol eth-switch, Generation: 220, Route table: 0
      Flags: None

Neither the port nor the switch has any policer/rate limiting policy defined. The port is assigned to one VLAN and that VLAN has nothing defined except a vlan-id. So where does this "Bandwidth: 100mbps" value for the logical interface come from? On all of the other interfaces that value is 0. 

Jonathan