Cisco 2948G - Catalyst Switch Handbuch für häufig gestellte Fragen - Seite 5
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Policers
(egress)
N/A
Input/output
policer
definition
with L3 and
10
L4
headers
No
Output
shaping
No
Classification
with an IP
11
DSCP
basis
No
Classification
based on
IEEE 802.1p
(CoS)
Yes
Classification
based on
ACLs or
traffic classes
No
Marking
Yes,
based on
switchwide
13
ISL
, 802.1p,
settings only
14
and IP ToS
with set qos
defaultcos
command and
only on
unclassified
or untagged
command
Yes, with the
Yes, up to 1K
rate−limit
policers
output command
No, applies to all
IP and non−IP
Yes
Yes, as of Cisco
traffic per port
IOS Software
Release
Yes,
12.0(10)W5(18e)
per−egress
with the
queue with the
traffic−shape
shape
rate command
command
Yes, on the
basis of
"trusted"
values of
arriving
Yes, IP
packets or via
precedence bits
the
only
configuration
of per−port,
ACL−based
or class−based
marking
Yes, based on
"trusted"
values of
N/A
arriving
packets or via
configured
marking rules
No, applies to all
IP and non−IP
traffic, except
Yes
high−priority
packets destined
to the CPU
No, honors
Yes
existing IP
precedence values
for input
classification and
output
scheduling.
9
12
,