NEC SL1100, Networking Manual

Page: 92 / 292

Issue 6.0 NEC SL1100
6 - 30 Network Design Considerations
Configuration Example Explanation :
1. Defines a Class Map called VoIPClass.
2. Matches any packets that have the ToS field set to IP
Precedence 5 / DSCP 40 and assigns them to VoIPClass.
3. Defines a Policy Map called VoIPPolicy.
4. Creates a Class called VoIPClass and assigns this to the
VoIPPolicy.
5. Allocates 50Kbps of bandwidth to the VoIPClass.
6 & 7.Determines that any data that does not match VoIPClass
should be processed using the “fair-queue” method (i.e., No
Prioritization).
8. Determines the amount of bandwidth available on the Serial
interface – essential for the QoS calculations.
9. Applies the VoIP Policy to any packets that exit the serial
interface. This means that data being received (input) does not
use this policy.
Table 6-7 Cisco Router Configuration Example