Inalp Networks SmartWare Release 2.10, Software Configuration Manual

Page: 119 / 357

Link Scheduler Configuration 119
Software Configuration Guide Release 2.10, Revision 1.00
policy profile.
How the bandwidth on an IP interface is shared among the source classes is defined on the third line.
The mode command allows selecting between the weighted fair queuing and shaping arbitration
mode.
On lines 4 to 9 the source classes are defined. When using weighted fair queuing (wfq) each user-
specified source class needs a value specifying its contribute to the overall bandwidth. For this
purpose the share command is used, which divides up the full bandwidth among source classes and
policies.
At a certain place the source class
default has to be specified, e.g. in the top-level or a sub-level service
policy profile configuration. This class is used, since it defines how packets, which do not belong to
an explicit class and are not originating from the SmartNode itself, have to be processed.
On line 10 a source policy is included in the top-level service policy profile. The definitions for this
source policy have to be done within another link arbiter profile. Within the top-level link arbiter
policy the source policy—in this case the sub-level profile—only gets a relative share assigned.
Procedure
Creating a top-level service policy profile, which includes several source classes, or lower level
service policy profiles.
Mode
Configure
Command Purpose
Step 1 node (cfg)# profile service-policy name
Creates a new service policy profile
named
name
Step 2 node (pf-srvpl)[ name ]#rate-limit value Limits global interface rate to value in
kBit/s. Be aware, that the actual rate-
limit on an given interface has to be
defined for reliable operation.
Step 3 node (pf-srvpl)[ name ]#mode { shaper | wfq} Sets the arbitration scheme to mode
shaper or weighted fair queuing (wfq).
If not specified wfq is default.
Step 4 node (pf-srvpl)[ name ]#source {class |
policy} src-name
Enters source configuration mode for
an ACL class or an hierarchical lower
level service policy profile named
src-
name .
Step 5 node (src)[src-name]… At this point the necessary commands
used to specify the source classes or
lower level source policy profiles have
to be entered.
Refer to Chapter 15.8, “Specifying
Source Classes or Lower Level Source
Policy Profiles”, for more details.
Step 6 node (src)[src-name] exit Leaves the source configuration mode
of an class or a lower level service