Ethernet Switching - Vanguard Networks
Ethernet Switching - Vanguard Networks
Ethernet Switching - Vanguard Networks
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<strong>Ethernet</strong> <strong>Switching</strong> Theory of Operation<br />
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IP Interface Configuration<br />
Entry 1:<br />
Interface Number: 1<br />
IP Address:192.167.1.1<br />
VLAN ID: 1<br />
Port 24 Configuration:<br />
Port Type: ETH<br />
Switch Capabilities: SWITCH_TO_-<br />
ROUTER_UPLINK<br />
Router Interface Number: 1<br />
DSCP to COS Profile: 1<br />
COS DSCP Map<br />
Profile = 1<br />
Layer 3<br />
------------------------------<br />
1 8-15<br />
2 16-23<br />
3 24-31<br />
4 32-39<br />
Stage 1 IP Header dscp=58 IP Data<br />
5 40-47<br />
6 48-55<br />
7 56-63<br />
CoS to DSCP Map<br />
Profile=1<br />
------------------------<br />
0 0-7<br />
1 8-15<br />
2 16-23<br />
3 24-31<br />
4 32-39<br />
5 40-47<br />
6 48-55<br />
7 56-63<br />
Stage 2<br />
VLAN tag (FPRI=7)<br />
DSCP to COS<br />
Mapping Function<br />
IP Header dscp=58<br />
<strong>Ethernet</strong> Port<br />
Transmitter<br />
IP Data<br />
Port 24<br />
Stage 3<br />
Destination Source<br />
0x8100<br />
VLAN tag (FPRI=7)<br />
Type/Len<br />
IP Header (dscp=58)<br />
IP Data<br />
FCS<br />
Figure 7. Application of the DSCP to COS Mapping Function<br />
8 <strong>Ethernet</strong> <strong>Switching</strong>
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