hfsc example; taken from a diff Berk D. Demir <bdd at ieee.org> sent me

1 files changed, 19 insertions, 0 deletions

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+# $OpenBSD: queue4,v 1.1 2003/04/29 12:48:35 henning Exp $
+#
+# Hierarchial queueing for a university.
+# Three faculties; engineering, law and art are defined.
+# Departments under the engineering faculty are defined as child queues.
+# The total bandwidth for engineering faculty is shared between three
+# departments. CS department gets the half of the bandwidth, EE and IE
+# departments get the thirty percent and twenty percent of bandwidth
+# respectively. These sibling departments can use more than their linkshare
+# whenever there is no backlogged sibling queue but when a queue gets
+# backlogged, it is guaranteed that the queue gets its linkshare.
+
+altq on dc0 bandwidth 16Mb hfsc queue { eng law art }
+queue eng bandwidth 10Mb { cs ee ie }
+queue  cs hfsc( default linkshare 50% ) 
+queue  ee hfsc( linkshare 30% ) 
+queue  ie hfsc( linkshare 20% )
+queue law bandwidth 3Mb
+queue art bandwidth 3Mb