Cabletron Systems MMAC-Plus 9F116-01, Руководство пользователя, Страница: 115 / 420

Configuring Frame Relay 6-33
Frame Relay PVC Parameters
1 The DLCI must match the DLCI configured at the remote end of the physical link.
2 Some formulae that might help in determining these values are:
B
C
>= 8 times maximum packet size.
B
E
<= B
C
multiplied by [(line speed/CIR) minus 1].
Connection Priority
prioritizes this connection for intra-nodal traffic; the higher the number, the higher the
priority. (This priority has no effect on traffic exiting a node.)
A priority is also configured in Node Defaults, as well as for each logical port, SNA
PU, LLC2 host, Bridge Port/LLC2 Interface, IP interface, IPX interface, and SVC
subscriber. The device processor in the node uses these priorities to help determine the
order in which it will process protocols.
When configuring priorities, be careful to consider the types of
traffic being routed on other connections in the node.
Primary/Secondary Name
identifies each end of the connection to the console operator. The software does not
use this information.
Primary/Secondary DLCI
is a logical connection identifier for each end of the PVC.
Primary/Secondary LP
is the (FRX6000 only) RLP at each end of the internal connection.
Primary/Secondary Port
is the port at each end of the internal connection.
Table 6-7 Frame Relay PVC Parameters
Parameter Valid Values Default Value
Connecti on Priori ty 0–9 0
Primary/ Secondary Name
0–31 characters none
Primary/ Secondary DLCI 16–991
1
16
Primary/ Secondary LP
FRX4000, FRM: 0
FRX6000: 0–7 0
Primary/ Secondary Port 0–7 0
Commi tted I nf. Rate (CIR) 0–2000
(kbits/sec)
2
0
Commi tted Burst Size (BC) ½ CIR–5x CIR (kbits)
2
½ CIR
Excess Burst Size (BE) 0–2000 (kbits)
2
0