Nortel 4526T-PWR 用户指南
22
Chapter 1 An Introduction to Policy-Enabled Networks
ATTENTION
Different results can be obtained using meter and shaper with same parameters.
This is due to the adding of the VLAN encapsulation, when applicable. Metering
is applied to packets received by a port before adding VLAN encapsulation.
Shaping is applied to packets sent on a port, after the port has added the VLAN
encapsulation to the packet.
This is due to the adding of the VLAN encapsulation, when applicable. Metering
is applied to packets received by a port before adding VLAN encapsulation.
Shaping is applied to packets sent on a port, after the port has added the VLAN
encapsulation to the packet.
Nortel SNA solution
The Ethernet Routing Switch 4500 Series can be configured as a network
access device for the Nortel SNA solution.
access device for the Nortel SNA solution.
Nortel SNA is a protective framework to secure the network completely from
endpoint vulnerability. The Nortel SNA solution addresses endpoint security
and enforces policy compliance. Nortel SNA delivers endpoint security by
enabling only trusted, role-based access privileges premised on the security
level of the device, user identity, and session context. Nortel SNA enforces
policy compliance, such as for Sarbanes-Oxley and COBIT, ensuring that
the required antivirus applications or software patches are installed before
users are granted network access.
endpoint vulnerability. The Nortel SNA solution addresses endpoint security
and enforces policy compliance. Nortel SNA delivers endpoint security by
enabling only trusted, role-based access privileges premised on the security
level of the device, user identity, and session context. Nortel SNA enforces
policy compliance, such as for Sarbanes-Oxley and COBIT, ensuring that
the required antivirus applications or software patches are installed before
users are granted network access.
The Nortel SNA solution provides a policy-based, clientless approach
to corporate network access. The Nortel SNA solution provides both
authentication and enforcement.
to corporate network access. The Nortel SNA solution provides both
authentication and enforcement.
For more information about Nortel SNA, see Nortel Security Configuration
manual (NN47205-501_CFSEC).
manual (NN47205-501_CFSEC).
Rules
Packet classifiers identify packets according to a particular content in the
packet header, such as the source address, destination address, source
port number, destination port number, and other data. Packet classifiers
identify flows for additional processing.
packet header, such as the source address, destination address, source
port number, destination port number, and other data. Packet classifiers
identify flows for additional processing.
Three types of classifier elements can be used to construct a classifier:
•
Layer 2 (L2) classifier elements
•
IP classifier elements
•
System classifier
Classifier definition
A classifier is made up of one or more classifier elements. The classifier
elements dictate the classification criteria of the classifiers. Only one
element of each type, IP or L2 or System Classifier Element, can be used to
construct a classifier.
elements dictate the classification criteria of the classifiers. Only one
element of each type, IP or L2 or System Classifier Element, can be used to
construct a classifier.
Nortel Ethernet Routing Switch 4500 Series
Configuration — Quality of Service
NN47205-504 (322816-
B
)
03.01
Standard
5.1
23 November 2007
Copyright © 2007, Nortel Networks
.