Specifications

CHAPTER
9-1
Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
9
Cisco IGX 8400 Series Frame Relay Service
Note The Frame Relay module (FRM) is no longer available for sale through Cisco Systems, Inc. However,
the card set is supported in Switch Software Release 9.3.30 or later to allow legacy users to migrate their
networks into the latest switch software release. If you have questions regarding the availability of the
FRM, please contact your Cisco account representative.
This chapter provides information on provisioning and managing Frame Relay (FR) connections on an
IGX node.
Frame Relay—Functional Overview
This section provides information on how to provision FR service on an IGX node. Information in this
section applies to the UFM and the FRM card sets. For more information about these cards, see the
“Universal Frame Module” section on page 2-50 and the “Frame Relay Module” section on page 2-67.
The IGX supports the following FR features:
• FR classes
• Support for physical and logical FR ports
• FR connections supported on IGX
An IGX node provides a Permanent Virtual Circuit (PVC) FR Service for interconnecting user devices
(routers, bridges, and packet switches). The PVCs are internally created on the node and rely on
FastPacket switching. The user device connects to the FR back card in the node. The back card provides
the adaptation layer function to convert between the FR format and the FastPacket format.
Because FR is a purchased option, Cisco must enable it on each applicable WAN Switching node.
A variety of external user devices can operate with an IGX node. The configuration on these devices
must be appropriate for the type of interface on the back card.
The FR information in this chapter applies to the FRM or UFM card sets for the IGX. For information
on the FRSM for the MGX 8220 shelf, refer to the Cisco MGX 8220 Command Reference.
Note A connection is the same as a PVC (permanent virtual circuit).