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Merge pull request #125 from adferguson/adf-tc-renumber

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Adjust numbering to support tc-based switch QoS

This looks fine to me - probably we want to change the way this works eventually, but for now renumbering it is fine and we can change the numbering later if desired.
This commit is contained in:
Bob
2013-04-09 14:59:41 -07:00
parent e5a15ced01 e09254eea3
commit 7c920edc29
1 changed files with 15 additions and 12 deletions
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mininet/link.py
+15 -12
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@@ -196,36 +196,36 @@ class TCIntf( Intf ):
# are specifying the correct sizes. For now I have used
# the same settings we had in the mininet-hifi code.
if use_hfsc:
cmds += [ '%s qdisc add dev %s root handle 1:0 hfsc default 1',
'%s class add dev %s parent 1:0 classid 1:1 hfsc sc '
cmds += [ '%s qdisc add dev %s root handle 5:0 hfsc default 1',
'%s class add dev %s parent 5:0 classid 5:1 hfsc sc '
+ 'rate %fMbit ul rate %fMbit' % ( bw, bw ) ]
elif use_tbf:
if latency_ms is None:
latency_ms = 15 * 8 / bw
cmds += [ '%s qdisc add dev %s root handle 1: tbf ' +
cmds += [ '%s qdisc add dev %s root handle 5: tbf ' +
'rate %fMbit burst 15000 latency %fms' %
( bw, latency_ms ) ]
else:
cmds += [ '%s qdisc add dev %s root handle 1:0 htb default 1',
'%s class add dev %s parent 1:0 classid 1:1 htb ' +
cmds += [ '%s qdisc add dev %s root handle 5:0 htb default 1',
'%s class add dev %s parent 5:0 classid 5:1 htb ' +
'rate %fMbit burst 15k' % bw ]
parent = ' parent 1:1 '
parent = ' parent 5:1 '
# ECN or RED
if enable_ecn:
cmds += [ '%s qdisc add dev %s' + parent +
'handle 10: red limit 1000000 ' +
'handle 6: red limit 1000000 ' +
'min 30000 max 35000 avpkt 1500 ' +
'burst 20 ' +
'bandwidth %fmbit probability 1 ecn' % bw ]
parent = ' parent 10: '
parent = ' parent 6: '
elif enable_red:
cmds += [ '%s qdisc add dev %s' + parent +
'handle 10: red limit 1000000 ' +
'handle 6: red limit 1000000 ' +
'min 30000 max 35000 avpkt 1500 ' +
'burst 20 ' +
'bandwidth %fmbit probability 1' % bw ]
parent = ' parent 10: '
parent = ' parent 6: '
return cmds, parent
@staticmethod
@@ -251,7 +251,8 @@ class TCIntf( Intf ):
cmds = [ '%s qdisc add dev %s ' + parent +
' handle 10: netem ' +
netemargs ]
return cmds
parent = ' parent 10:1 '
return cmds, parent
def tc( self, cmd, tc='tc' ):
"Execute tc command for our interface"
@@ -289,9 +290,10 @@ class TCIntf( Intf ):
cmds += bwcmds
# Delay/jitter/loss/max_queue_size using netem
cmds += self.delayCmds( delay=delay, jitter=jitter, loss=loss,
delaycmds, parent = self.delayCmds( delay=delay, jitter=jitter, loss=loss,
max_queue_size=max_queue_size,
parent=parent )
cmds += delaycmds
# Ugly but functional: display configuration info
stuff = ( ( [ '%.2fMbit' % bw ] if bw is not None else [] ) +
@@ -308,6 +310,7 @@ class TCIntf( Intf ):
debug( "cmds:", cmds, '\n' )
debug( "outputs:", tcoutputs, '\n' )
result[ 'tcoutputs'] = tcoutputs
result[ 'parent' ] = parent
return result