Cisco Cisco Carrier Packet Transport (CPT) 50 Guide D’Information

The document describes the detail features of PTF (Packet Transport Fabric) card used in Cisco
Carrier Packet Transport (CPT) Devices and basic troubleshooting of it in case of fault occurrence.

Also in this documents some known issues have been published related to PTF card with some
troubleshooting steps along with logs collection.

Note: This Document will describe the detail description of only fabric card not line card.

Requirements:Cisco recommends that you have basic knowledge below Layer 2
Transport:Carrier Ethernet, MPLS-Transport Profile (TP) and IP/MPLS-(TE)Layer 2 and Layer 2+
services:Carrier Ethernet - EPL, EVPL, ELAN, EVPLANMPLS-TP – P2P Circuits (VPWS), Ring
VPLS, IP/MPLS (TE) – P2P Circuits (VPWS), Multipoint (VPLS).

Components Used and related products:This document can also be used with these hardware
and software versions:-Cisco CPT600-CPT-PTF256-10Gx4=-Cisco CPT200-Carrier Packet
Transport Platform Release 9.5 System Software.

Packet-based services dominate the overall network traffic and as a result service providers are
required to

migrate their existing transport networks from time-division multiplexing (TDM) networks to packet
transport

networks. Service providers need next-generation transport networks that can enable and support
new mesh, multipoint, and multidirectional services. By deploying packet transport networks,
service providers can

benefit from statistical multiplexing, dynamic bandwidth allocation, and quality of service (QoS).

The Carrier Packet Transport (CPT) system is designed to help service providers transition from
TDM networks to packet transport networks smoothly and efficiently. The CPT System is an
integrated packet transport platform that enables service providers to deploy new packet transport
networks.