ATM Configuration and Troubleshooting Guide

Configuring SVCs and PVCs
Planning Your VC Configuration
Chapter 566
Checking the Bandwidth Allocated to PVCs
For an ATM-HSC 155Mbit/s[+] adapter, you must check that the sum of
all the Minimum Rates (MRs) configured for ABR traffic plus the sum of
the Peak Rates (PRs) configured for CBR traffic does not exceed
155 Mbits/s. So, here are the checks you would need to make for the
systems in the above example (the appropriate fields are in bold in the
VC matrix above):
Table 5-2 Example of VC Matrix
VC
Typ
eof
VC
Config
ured
on
Adapte
r
Swi
tch
Port
In
VPI,
VCI
Swi
tch
Port
Out
VPI,
VCI
Traf
fic
Typ
e
Traff
ic
Valu
es
[Mbit
s/s]
A-->
B
PVC Sys A:
atm0
A1 0,10
1
A2 0,10
1
ABR MR=
30
IR =
60
PR =
80
B-->
A
PVC Sys B:
atm0
A2 0,10
1
A1 0,10
1
ABR
A-->
C
PVC Sys A:
atm0
A1 0,10
2
A3 0,10
2
CBR PR =
90
C-->
A
PVC Sys C:
atm0
A3 0,10
2
A1 0,10
2
CBR
B-->
C
SVC Sys B:
atm0
UBR PR =
50
C-->
B
SVC Sys C:
atm0
UBR