Specifications

3-2
Cisco ATM Services (AXSM) Configuration Guide and Command Reference for MGX Switches
Release 5.2, Part Number OL-6484-01 Rev. C0, September 2005
Chapter 3 Provisioning ATM Services
Channelized paths Channelization is possible on AXSM-XG cards.
Channelization makes it possible to implement
multiple SONET or SDH paths on a single line. It
also makes it possible to implement multiple DS3
paths on a single SONET path.
“Channelizing SONET Lines
Configuration Quickstart” section on
page 2-4
“Channelizing SONET Lines
Configuration Quickstart” section on
page 2-4
“Channelizing SDH Lines
Configuration Quickstart” section on
page 2-5
Feeder trunks Feeder trunks link a feeder switch to a Cisco MGX
8850 (PXM45) switch. The feeder switch
concatenates relatively low speed traffic and feeds
it over a higher speed interface to the Cisco MGX
8850 switch, which provide the link to the ATM
network core. Feeder switches include:
• Cisco MGX 8230
• Cisco MGX 8250
• Cisco MGX 8850 (PXM1E)
• Cisco IGX switches
“Cisco IGX Feeder to Cisco MGX 8850
Configuration Quickstart” section on
page 3-14
“PXM1 Feeder Configuration
Quickstart” section on page 3-16
Cisco BPX PNNI trunks Cisco BPX PNNI trunks provide PNNI links
between Cisco MGX 8850 (PXM45) and Cisco
MGX 8950 and Cisco BPX switches that support
PNNI. The Cisco BPX switch supports PNNI when
connected to the Cisco SES PNNI Controller.
“Cisco BPX PNNI Trunk
Configuration Quickstart” section on
page 3-18
ATM Inter-Network Interface
(AINI) links
AINI links enable connectivity between two
independent PNNI networks and block the PNNI
database exchange so the two networks remain
independent.
“AINI Link Configuration Quickstart”
section on page 3-20
Interim Inter-switch Protocol
(IISP) links
IISP links enable connectivity between two
independent PNNI networks and block the PNNI
database exchange so the two networks remain
independent. IISP is the predecessor to AINI and
should be used only when AINI is not supported on
one or both ends of the network link.
“IISP Link Configuration Quickstart”
section on page 3-22
Extended Link Management
Interface (XLMI) links
XLMI links connect PNNI networks to AutoRoute
networks. XLMI links enable the expansion of
AutoRoute networks using PNNI, and they
facilitate migration from AutoRoute networking to
PNNI.
“XLMI Link Configuration Quickstart”
section on page 3-24
Point-to-Multipoint SPVCs
and SPVPs
Point-to-multipoint (P2MP) connections enable a
single master endpoint to support several slave
endpoints.
“Configuring Point-to-Multipoint
SPVCs and SPVPs” section on
page 3-61
Table 3-1 AXSM Link and Connection Types (continued)
AXSM Link or Connection Type Description Section