Beta Draft Confidential
Configuring Management Paths
Using MPVCs
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000 1/19/0511-3
Using MPVCs
An MPVC provides the connection from the NMS (or other workstation) to the
gateway switch, while the remaining switches in your PNNI network are connected
using MSPVCs. Figure 11-1 on page 11-2 illustrates this concept.
A management PVC (MPVC) provides an access point to the switching network’s
management plane (which is IP-based). MPVCs offer an efficient, high-performance
data path capable of transferring large amounts of management data, such as
NavisXtend Accounting or Statistics Server files. This feature is available on
B-STDX, CBX, and GX switch platforms.
MPVCs originate at the switch input/output interface: IOP (B-STDX), IOM (CBX),
and BIO (GX 550). They terminate at an internal logical port located on the switch
processor module (either CP, SP, or NP, respectively). MPVCs provide a data path that
accesses internal network management functions. This enables you to use any
physical port as a network management port.
The MPVC internal logical port is designated as
MgmtLPort.SW<switchname>. It
uses an interface number (ifnum) of 4093. To form the circuit, connect the
MgmtLPort.SW<switchname> endpoint to any UNI logical port type. You can
configure MPVCs across different switch platforms; for example, B-STDX Frame
Relay UNI to CBX MPVC. Configure the remaining PVC attributes as you would for
a standard PVC. Note that you can use the internal management port to terminate
more than one MPVC.
MPVCs enable you to configure a management path to an ASE. Once you define the
management path, the IP process on the switch’s processor module can send (and
receive) IP packets over the MPVC to (and from) the ASE. The management path is
described in the switch’s arp cache and routing table.
Note – When you configure a redirect MPVC, the pivot endpoint must be the
management logical port (MgmtLPort) on the CP/SP/NP.
The CBR QoS class is not available on MPVCs.
Note – Lucent recommends that you configure MPVCs after you download the NMS
initialization-script to initialize the switch. If you configure MPVCs before you
initialize the switch, the NMS searches the entire circuit table for the presence of
MPVCs; generating the initialization-script file can take ten minutes or more,
depending on the size of the circuit table. See the Navis EMS-CBGX Getting Started
Guide
for information about downloading the initialization-script file.
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