Specifications

4-2
Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
Chapter 4 Cisco IGX 8400 Series Trunks
Functional Overview
When determining which type of trunk to configure, consider what features are supported by your
available hardware, switch software release, and firmware image (see Table 4-3).
Chapter 2, “Cisco IGX 8400 Series Cards,” provides additional information on features supported on
each card. For switch software and firmware compatibility and feature support information, refer to the
release notes for the switch software or firmware release.
UXM-E BC-UAI-4-155-MMF
BC-UAI-4-155-SMF
BC-UAI-2-155-SMF
BC-UAI-2-SMFXLR
BC-UAI-4-SMFXLR
BC-UAI-4-STM1E
OC-3 (STM) ATM
UXM-E BC-UAI-3-T3
BC-UAI-6-T3
T3 ATM
UXM-E BC-UAI-3-E3
BC-UAI-6-E3
E3 ATM
UXM-E BC-UAI-4T1-DB-15
BC-UAI-8T1-DB-15
T1
NxT1
ATM
UXM-E BC-UAI-4-E1-DB-15
BC-UAI-8-E1-DB-15
BC-UAI-4-E1-BNC
BC-UAI-8-E1-BNC
E1
NxE1
ATM
Table 4-2 Trunk Types Supported on the IGX (continued)
Front Card Back Card Trunk Type Technology
Table 4-3 Trunk Features Supported on the IGX
Feature Description
Service
Module See
Virtual trunking Configures a trunk over a public ATM network,
connecting two private subnets.
UXM
UXM-E
The “Virtual
Trunking on the
IGX” section on
page 4-3, and the
“Setting Up a Virtual
Trunk” section on
page 4-9
ATM
standards-based
inverse
multiplexing
(IMA)
Combines several T1 or E1 links to form a trunk with
larger bandwidth.
UXM
UXM-E
The “IMA on the
IGX” section on
page 4-5
Virtual Slave
Interface (VSI)
support
Configures the IGX to allow allocation of switch
resources to external controllers for call management
or connection with other protocols (such as MPLS).
UXM
UXM-E
Chapter 8,
“Cisco IGX 8400
Series ATM Service”