Specifications

50 IBM Voice Over Frame Relay Perform Guide
Figure 21. The STATUS Command
3.4.0.4 Frame Relay Interface Configuration
In AIS V3.3, support for the frame relay protocol is enhanced with the Voice
Packet Forwarding over FR and Fragmentation over FR functions.
The Voice Packet Forwarding over FR function enables a voice capable router
(IBM 2212) or non-voice capable router (IBM 2210 or 2216) to pass voice packet
through it between FR PVCs. This allows a voice capable router to multiplex voice
and data over the same virtual circuit across the FR network. The voice
forwarding capable router routes the received data using the protocol stack
associated with the received traffic and forwards the voice traffic to another PVC
over the same or another FR interface. In a typical configuration, the voice traffic
would be forwarded to a locally attached device, such as a IBM 9783. This
function is also enhanced in the 2210 and 2216.
The Fragmentation over FR function is useful if you are transmitting very large
frames or files. Fragmentation enables the frame relay interface to fragment the
data frames so that real-time frames are not delayed by the data frames on the
interface. Fragmentation is necessary to minimize the amount of delay in queuing
and transmitting voice packets. The fragmentation implemented on the 2212
2212-yokohama Config>STATUS
ode ID : 0.0.0.40
Absolute Port Address : 00
Vocoder Suite Nuera Echo Canceller Filter
Vocoder Active ECELP Fax Demodulation Idle
Vocoder Rate 9600 Fax Modulation Idle
Vocoder Packet Size 18 Fax Type V.27 at 9600 bps
Vocoder Frame Size 120 Fax Last FCF 0
Last Received Dial Sequence :
Last Transmitted Dial Sequence :
Transmit Packets Receive Packets
Total 4377 Total 2960
Voice 4333 Voice 2926
CAS 13 CAS 24
DTMF 0 DTMF 0
FAX 0 FAX 0
Lost 0 Lost 0
2212-yokohama FR 0 Config>ADD PERMANENT-VIRTUAL-CIRCUIT
Circuit number [16]? 16
Committed Information Rate (CIR) in bps [64000]? 9600
Committed Burst Size (Bc) in bits [64000]? 9600
Excess Burst Size (Be) in bits [0]?
Assign circuit name []? VOFR
Is circuit required for interface operation [N]?
Enable circuit for voice forwarding [N]? y
Network number of voice forwarding PVC [0]?
Circuit number of voice forwarding PVC [16]? 16