[c-nsp] Holy "show spanning-tree in" command, Batman...(?)

[Rick Kunkel]

Anyone know this?  I meant to type show "spanning tree int BLAH" something
and hit enter prematurely and got this!

sw01#show spanning-tree in
this[0] = "1";
this[1] = "10";
this[2] = "80";
this[3] = "110";
this[4] = "120";
this[5] = "140";
this[6] = "150";
this[7] = "180";
this[8] = "200";
this[9] = "210";
this[10] = "220";
this[11] = "250";
this[12] = "260";
this[13] = "400";
this[14] = "430";
this[15] = "450";
this[16] = "460";
this[17] = "560";
this[18] = "570";
this[19] = "580";
this[20] = "630";
this[21] = "770";
this[22] = "230";
this.length = 23

Looks like javascript!  Or SNMP references.  I know those are VLAN numbers
on the right, and ports in array on the left.  Anyone know anything about
this?  I'm writing just for curiosity's sake.  No prob to speak of.

This is an old WS-C2924-XL by the way.

--Rick