Table of Contents
Advertisement
Chapter 4
Configuring the PA-VXA, PA-VXB, and PA-VXC
RSVP Configuration Example
The following example enables RSVP and sets the maximum bandwidth to 100 kbps and the maximum
bandwidth per single request to 32 kbps (the example presumes that both VoIP dial peers have been
configured):
interface DSPfarm 1/0/0
ip rsvp bandwidth 100 32
fair-queue
end
!
dial-peer voice 1211 voip
req-qos controlled-load
!
dial-peer voice 1212 voip
req-qos controlled-load
Configure Multilink PPP with Interleaving
Multiclass Multilink PPP interleaving allows large packets to be multilink-encapsulated and fragmented
into smaller packets to satisfy the delay requirements of real-time voice traffic; small real-time packets,
which are not multilink-encapsulated, are transmitted between fragments of the large packets. The
interleaving feature also provides a special transmit queue for the smaller, delay-sensitive packets,
enabling them to be transmitted earlier than other flows. Interleaving provides the delay bounds for
delay-sensitive voice packets on a slow link that is used for other best-effort traffic.
Note
Interleaving applies only to interfaces that can configure a multilink bundle interface. These include
virtual templates, dialer interfaces, and Integrated Services Digital Network (ISDN) Basic Rate
Interface (BRI) or Primary Rate Interface (PRI).
In general, Multilink PPP with interleaving is used in conjunction with weighted fair queuing and RSVP
or IP precedence to ensure voice packet delivery. Use Multilink PPP with interleaving and weighted fair
queuing to define how data will be managed; use RSVP or IP precedence to give priority to voice
packets.
You should configure Multilink PPP if the following conditions exist in your network:
•
•
Do not use Multilink PPP on links greater than 2 Mbps.
Note
Enable Multilink PPP with Interleaving
Multilink PPP support for interleaving can be configured on virtual templates, dialer interfaces, and
ISDN BRI or PRI interfaces. To configure interleaving, you need to complete the following tasks:
•
•
OL-3592-02
Point-to-point connection using PPP encapsulation
Slow links
Configure the dialer interface or virtual template, as defined in the relevant chapters of the
Cisco IOS Release 12.0 Dial Solutions Configuration Guide.
Configure Multilink PPP and interleaving on the interface or template.
T1/E1 Digital Voice Port Adapter Installation and Configuration
Configuring Voice over IP
4-11
Advertisement
Table of Contents
Troubleshooting
