IPGPC(7IPP) IP Quality of Service Modules IPGPC(7IPP)


NAME


ipgpc - IP Generic Packet Classifier

DESCRIPTION


The IP Generic Packet Classifier (ipgpc) module provides packet
classification at the Solaris IP layer. ipgpc is an implementation of the
Multi-Field (MF) classifier as described in RFC2475: An Architecture for
Differentiated Services.


The classifier is configured, at startup or dynamically, using a set of
"filters." Filters describe selectors that are matched against input
packets that are processed by the classifier. Some selectors feature
exact matching data points, while others utilize non-exact or wildcard
data points.


Each filter is associated with a class describing the next actions to
process a packet. There is a many-to-one (M-to-1) mapping relationship
between filters and a class. Additionally, each class is aware of which
filters are associated with it. A class is configured with a class name
and a next action.


Unlike traditional classifiers used in edge routers, ipgpc is designed
for a host or server device. A host-based classifier provides access to
more resources and data than edge routers. User, project, and interface
information are available at the host.

STATISTICS


The ipgpc module exports global and per-class statistics (available
through kstat:)


Global statistics:

module: ipgpc instance:<action id>
name: ipgpc global stats class: <action name>
crtime
snaptime
nbytes <number of classified bytes>
nclasses <number of classes>
nfilters <number of filters>
npackets <number of classified packets>
epackets <number of packets in error>


Per-class statistics:

module: ipgpc instance:<action id>
name: <class name> class: <action name>
crtime
snaptime
last match <time of last match>
nbytes <number of classified bytes>
npackets <number of classified packets>


FILES


/kernel/ipp/sparcv9/ipgpc
64-bit module (SPARC only.)


SEE ALSO


ipqosconf(1M), dlcosmk(7ipp), dscpmk(7ipp), flowacct(7ipp), ipqos(7ipp),
tokenmt(7ipp), tswtclmt(7ipp)


RFC 2475, An Architecture for Differentiated Services S. Blake, D. Black,
M. Carlson, E. Davies, Z. Wang, W. Weiss -- The Internet Society, 1998


September 29, 2004 IPGPC(7IPP)