642-887
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642-887 Exam
Implementing Cisco Service Provider Next-Generation Core Network Services
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The Cisco 642-887 Certification Exam assesses the applicant's information about the concepts and implementation of MPLS technology and MPLS-TE services. It also confirms the knowledge of primary QoS, and QoS principles of the technology with Multiprotocol Label Change (MPLS) to perform excellent features and functions.
| Section | Weight | Objectives |
|---|
| MPLS/LDP in a Service Provider IP NGN Environment | 32% | 1 Describe the CEF, FIB, LFIB and LIB tables on Cisco routers
2 Describe MPLS labels and label stack operations on Cisco routers
3 Describe LDP operations in Cisco routers
4 Describe MPLS OAM (MPLS LSP ping and MPLS traceroute)
5 Describe MPLS applications in service provider environment
6 Implement LDP on Cisco IOS-XR and IOS-XE
7 Implement LDP high availability features on Cisco IOS-XR and IOS-XE
8 Troubleshoot LDP on IOS-XR and IOS-XE configuration errors |
| Transport Technologies | 8% | 1 Describe the SP core transition from ATM/SONET/SDH based backbone to packet based IP/MPLS backbone
2 Implement 10/40/100 Gigabit Ethernet Interfaces on Cisco IOS-XR routers
3 Describe DWDM, IPoDWDM and ROADM
4 Implement IPoDWDM controller/interface on Cisco IOS-XR routers |
| MPLS/LDP in a Service Provider IP NGN Environment | 22% | 1 Describe MPLS traffic engineering (TE) concepts
2 Describe MPLS TE constraint-based path computations
3 Describe the details of MPLS TE tunnels, including path setup procedures and path maintenance
4 Describe methods of assigning traffic into MPLS TE tunnels
5 Implement MPLS TE tunnels on Cisco IOS-XR and IOS-XE
6 Implement MPLS TE bandwidth control on Cisco IOS-XR and IOS-XE
7 Implement MPLS TE link and node protections on Cisco IOS-XR and IOS-XE |
| QOS in a Service Provider IP NGN Environment | 38% | 1 Describe the DiffServ and IntServ QoS models
2 Describe the QoS mechanisms (classification and marking, congestion management and avoidance, traffic policing and shaping)
3 Describe IPv6 Flow Label
4 Describe trust boundaries in enterprise and SP environments
5 Describe Cisco MQC for QoS configurations
6 Describe hierarchical QoS configurations
7 Describe the Cisco NBAR feature for discovering network protocols and for packets classifications
8 Describe the typical Edge PE routers and Core P routers QoS requirements
9 Implement classification and marking in an inter-domain network using QPPB on Cisco IOS-XR and IOS-XE
10 Implement class-based markings on Cisco IOS-XR and IOS-XE
11 Implement QoS pre-classify on tunnel interface on Cisco IOS-XR and IOS-XE
12 Implement CB-WFQ on Cisco IOS-XR and IOS-XE
13 Implement LLQ on Cisco IOS-XR and IOS-XE
14 Implement WRED on Cisco IOS-XR and IOS-XE
15 Implement traffic policing on Cisco IOS-XR and IOS-XE
16 Implement traffic shaping on Cisco IOS-XR and IOS-XE
17 Describe LPTS and hardware rate limiters on Cisco IOS-XR routers
18 Describe MPLS EXP bits
19 Describe MPLS QoS implementation concepts and models
20 Implement MPLS DiffServ tunneling on Cisco IOS-XR and IOS-XE
21 Troubleshoot QoS IOS-XR and IOS-XE configuration errors |