Netgear M4100-50G (GSM7248v2h2) - 46‐port GE + 4 GE Combo L2 Managed Switch Manual De Usuario
Configuration Examples
436
M4100 Series Managed Switch
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Integrated Services: Network resources are apportioned based on request and are
reserved (resource reservation) according to network management policy (RSVP, for
example).
reserved (resource reservation) according to network management policy (RSVP, for
example).
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Differentiated Services: Network resources are apportioned based on traffic
classification and priority, giving preferential treatment to data with strict timing
requirements.
classification and priority, giving preferential treatment to data with strict timing
requirements.
The managed switch support DiffServ.
The DiffServ feature contains a number of conceptual QoS building blocks you can use to
construct a differentiated service network. Use these same blocks in different ways to build
other types of QoS architectures.
construct a differentiated service network. Use these same blocks in different ways to build
other types of QoS architectures.
There are 3 key QoS building blocks needed to configure DiffServ:
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Class
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Policy
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Service (for example, the assignment of a policy to a directional interface)
Class
You can classify incoming packets at Layers 2, 3 and 4 by inspecting the following
information for a packet:
information for a packet:
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Source/destination MAC address
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EtherType
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Class of Service (802.1p priority) value (first/only VLAN tag)
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VLAN ID range (first/only VLAN tag)
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Secondary 802.1p priority value (second/inner VLAN tag)
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Secondary VLAN ID range (second/inner VLAN tag)
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IP service type octet (also known as: ToS bits, precedence value, DSCP value)
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Layer 4 protocol (TCP, UDP, and so on)
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Layer 4 source/destination ports
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Source/destination IP address
From a DiffServ point of view, there are two types of classes:
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DiffServ traffic classes
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DiffServ service levels/forwarding classes
DiffServ Traffic Classes
With DiffServ, you define which traffic classes to track on an ingress interface. You can define
simple BA classifiers (DSCP) and a wide variety of multifield (MF) classifiers:
simple BA classifiers (DSCP) and a wide variety of multifield (MF) classifiers:
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Layer 2; Layers 3, 4 (IP only)