IPGPC(4IPP) IP Quality of Service Modules IPGPC(4IPP)

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

dlcosmk(4IPP), dscpmk(4IPP), flowacct(4IPP), ipqos(4IPP),
tokenmt(4IPP), tswtclmt(4IPP), ipqosconf(8)


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(4IPP)