Services Assurance And Troubleshooting; Service Assurance And Troubleshooting Overview; 5650 Cpam For Visibility And Assurance; Network Object Persistence - Alcatel-Lucent 5620 User Manual

Release 12.0 R7 | December 2014 | 3HE 08833 AAAD TQZZA Edition 01
11 — Services assurance and troubleshooting
11.1

Service assurance and troubleshooting overview

The primary purpose of the 5620 SAM in virtualized service management is
improved awareness and assurance. Lightweight services offer opportunities for
service object persistence to accommodate for the constant deletion and creation of
service objects as VMs move within the network. As a result, event retrieval and
correlation features in the 5650 CPAM are extended to persisted service objects and
DC-specific events. 5650 CPAM BGP VPN route analytics are extended to
virtualized services to provide assurance and troubleshooting for dVRS and EVPN
service objects.
11.2

5650 CPAM for visibility and assurance

The 5650 CPAM BGP functionality provides a full view of the DC network and
associated WAN routing. It supports multivendor topology views through dynamic
discovery of IGP and BGP routing contexts. These views are combined with the
V-Switch and VM mappings derived from V-Node discovery to create a complete
mapping of the network underlay to the network overlay. The 5650 CPAM
automatically monitors virtual services as they relate to the VM and V-Port state.
You can use BGP reachability analysis to monitor the BGP state for VMs and NEs
in the DC network. Other BGP VPN features, such as map highlighting, can be used
to associate and map virtual objects to the network underlay.
The remainder of this chapter will focus on 5650 CPAM features which have been
extended with DC-specific enhancements. For more information on 5650 CPAM
BGP and IGP assurance features, see the 5650 CPAM User Guide.
11.3

Network object persistence

Due to the dynamic nature of virtualized services, it is necessary for the 5620 SAM
to provide historical persistence for VMs and service objects that have been moved
or deleted entirely. Lightweight services also provide persistence for service objects
such as V-Sites. Network object persistence allows you to see where a VM existed
in the network during a specific timeframe. You can then correlate historical faults
to a persisted object to see how a current fault relates to a persisted event. The
5620 SAM differentiates between virtual sites which are down due to a network
failure or due to an expected event.
11.4

Event retrieval log and correlation

Network events are stored in a history log which can be used for fault correlation.
You can open the event log from the dVRS service view or from the VM view. If you
open the log from the service view, you can view a log of all events related to that
service, as opposed to only events related to a specific VM. When you open the event
log, you can specify a period of time from which you want to query the log for events.
You can specify an interval or rewind from the current time.
11-2 Alcatel-Lucent 5620 Service Aware Manager
Nuage Virtualization User Guide
5620 SAM