
Chapter 4 Operational Concepts and Configuration Examples
Scenario 2 - Priority DLCI and Traffic Shaping
In Figure 4.11, Site A contains four IP phones and a data LAN connected via a
•Two VCs:
—One with CIR = 128Kbps, DLCI = 16
—The second with CIR = 0, DLCI = 17
•The IP phones are configured with the following DSCP tagging:
—Voice = DSCP 46
—Voice control = DSCP 34
•Network IPs (all 24 mask):
—IP phones - 1.1.1.0 (VLAN 1)
—Data - 11.11.11.0 (VLAN 2)
—Serial - 2.2.2.1
—Gatekeeper - 149.49.54.81
—MGP - 149.49.54.82
—VoIP (MGP) - 149.49.54.83
Site B contains four IP phones and a data LAN connected to a
•Two VCs:
—One with CIR = 128Kbps, DLCI = 16
—The second with CIR = 0, DLCI = 17
•The IP phones are configured with DSCP tagging:
—Voice = DSCP 46
—Voice control = DSCP 34
•Network IPs (all 24 mask):
—IP phones - 3.3.3.0 (VLAN 1)
—Data - 33.33.33.0 (VLAN 2)
—Serial - 2.2.2.2
—MGP - 4.4.4.10
—VoIP (MGP) - 4.4.4.11
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