Beta Draft Confidential
Configuring ATM PVCs
Configuring PMP Circuits
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
1/19/05
10-77
Table 10-15. Add Point-to-Multipoint PVC Root: Administrative Tab
Fields
Field
Action/Description
Root Name
Enter an alphanumeric name for the circuit root.
Circuit Type
Specify whether the circuit is a virtual path connection (VPC) or
virtual channel connection (VCC, the default). If you select VPC,
the VCI field is set to zero (0) and cannot be changed.
VPI (0-15)
Enter a value from 0-15 to represent the VPI for the PVC. The
maximum value you can enter is based on the valid bits in VPI
that are configured for the logical port. See
for
information about setting this value.
VCI (1-1023)
(For VCCs only)
Depending on the circuit configuration, enter a value from
1-1023 to represent the VCI for an ATM PVC. Although you can
configure VCIs in the 1 – 31 range (with the exception of
VCI=4), the ATM Forum reserves VCIs in this range for various
purposes. You should only use a VCI in the 1 – 31 range if you
are certain that compatibility issues will not arise with any
attached non-Lucent equipment. See
for information
about setting this value.
CDV Tolerance
(1-65535)
(microsec)
Enter a value between 1 - 65535
µ
sec to define the CDVT. The
UPC uses this value to police the requested TD. The default is
600
µ
sec.
Note: If you are using the CBX 500 3-Port Channelized DS3/1
IMA IOM or the CBX 3500 3-Port Channelized DS3/1 Enhanced
IMA module, the recommended minimum CDV Tolerance value is
1000
µ
sec.
The recommended minimum for the 1-Port Channelized
STM-1/E1 IMA IOM or the CBX 3500 1-Port Channelized
STM-1/E1 Enhanced IMA module is 1200
µ
secs.
Resource
Partitioning/
Network Overflow
Determines whether this PVC is restricted to trunks of its own
Layer2 VPN or can use public (shared) trunks during overflow
conditions. To configure this circuit for a specific Layer2 VPN
and customer, see
. For more information about Layer2
VPNs, see
.
Select one of the following options:
Public – (default) PVCs are routed over dedicated Layer2 VPN
trunks. However, in the event of failure, the customer’s traffic is
allowed to run over common trunks (shared by a variety of
different customers).
Restricted – PVCs can only use dedicated Layer2 VPN trunks. A
customer using this mode must purchase redundancy trunks to be
used in the event of outages or other trunk failures.
Содержание CBX 3500
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