Specifications

9-3
Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
Chapter 9 Cisco IGX 8400 Series Frame Relay Service
Frame Relay Provisioning
Be/Be is defined as fr_Be_Tx /fr_Be_Rx. If you have selected FR Forum standard parameters
(through the cnfsysparm command), the PVC uses Excess Burst (Be) instead of PIR. Be is the
amount of transmit/receive data above the number of bytes set by Bc if enough extra bandwidth is
available. Specify Be in bytes within the range 1–65535. Delivery of Be-data is not guaranteed. Be
has meaning to only ForeSight. The relationship between Be and PIR is Be = Bc * ((PIR/CIR) – 1).
• Cmax/Cmax is defined as fr_cmax_Tx /fr_cmax_Rx, where Cmax is the maximum credits the
connection can accrue. Cmax has the range 1–255 packets per second (pps).
• ECNQ_thresh/ECNQ_thresh are the transmit and receive threshold settings for the explicit
congestion notification control queues. The range for ECNQ_thresh is 1–65535 bytes.
• QIR/QIR is defined as fr_QIR_Tx /fr_QIR_Rx where fr_QIR is the quiescent information rate for
the connection, which is the initial transmit rate after a period of inactivity on the channel. If you
do not specify the quiescent receive rate fr_QIR_Rx, the system sets it to the transmit value. The
values are specified in kbps and must be in the range MIR–PIR. In addition, you can specify the
value 0 to default to the MIR. QIR has meaning for only ForeSight connections.
• FST enables or disables ForeSight for a connection. Valid entries are “y” (use ForeSight) or “n” (do
not use ForeSight).
• %utl/%utl are the percentage transmit and receive utilization settings for the FR class. This value
is specified as a percentage in the range 0–100 percent.
Physical and Logical Frame Relay Ports
On the IGX, FR is supported on FRM and UFM card sets. On the FRM and UFM, both physical and
logical ports can exist.
Frame Relay Connections Supported on the IGX
FR connections can exist between the following cards:
Frame Relay Provisioning
When provisioning FR service:
1. Set up an FR connection.
2. Use FR classes.
3. Configure channel utilization.
4. Set channel priorities.
5. Display statistics.
Table 9-1 FR Endpoints and Connection Types
Endpoints Supported Connection Types
UFM, FRM FRM, UFM, FRSM
(interworking NIW or SIW) UXM, UXM-E, BXM, ASI