Network Monitoring And Troubleshooting; Network Monitoring And Troubleshooting Overview; 5650 Cpam Igp Topology Maps; Map Highlighting - Alcatel-Lucent 5620 User Manual

Release 12.0 R7 | December 2014 | 3HE 08833 AAAD TQZZA Edition 01
9 — Network monitoring and troubleshooting
9.1

Network monitoring and troubleshooting overview

The infrastructure layer of the 5620 SAM includes network monitoring and
troubleshooting features to provide advanced visibility and fault management for the
DC network. Using the DC manager, you can quickly find the path to the associated
VSC for any VM or V-Switch in the network. You can then use 5650 CPAM
topology functionality to graphically highlight the path and assign IP path monitors.
Retention of historical faults and alarms allows you monitor historical changes on a
path between a router and a virtual component.
9.2

5650 CPAM IGP topology maps

You can use 5650 CPAM IGP topology features to map and monitor data center
network infrastructure. Topology maps display real-time network topology
information for a designated IGP administrative domain. They provide a color-coded
interface from which you can see a visual representation of routers, paths, and virtual
objects within the specified IGP administrative domain. The topology view provides
quick navigation to properties forms, telnet sessions, and feature configuration from
within the IGP administrative domain.
The Nuage Virtualization solution supports all functionality of 5650 CPAM IGP
topology maps excluding MPLS features. See the 5650 CPAM User Guide for more
information about topology management. The rest of this section will elaborate on
the topology features which are most relevant to data centers network management.

Map highlighting

5650 CPAM map highlighting can be used to highlight L2/L3 services, composite
services, service tunnels, SPF and CSPF routes, and OAM diagnostics results on IGP
maps.
In a data centers network, map highlighting is most useful for mapping paths from a
VM or V-Switch to either an associated controller or a PE router. By performing a
SPF highlight from a virtual object to a PE router, you can create a highlighted
mapping between the virtual object to the network underlay.

IP path monitors

5650 CPAM IP path monitors can be used to monitor the route between any two
routers seen by the 5620 SAM. When a network topology changes, such as a link
metric or state change, the system evaluates whether the routes of any registered path
are affected. If this is the case, new routes are recorded and the 5650 CPAM is
informed. If there is no route for a monitored path as a result of a topology change,
a record is logged. If there is a change in the SPF calculation based on a topology
change, the change is recorded. You can use map highlighting to highlight current
versus historical paths, including their respective costs.
IP path monitors help with data center network management by maintaining a
historical log of changes to the control path between a VSC and an associated VM or
V-Switch. The monitors can also find historical faults or alarms raised on the path,
which can be correlated to affected objects. IP path monitors can also monitor paths
from virtual objects to routers in the network underlay.
9-2 Alcatel-Lucent 5620 Service Aware Manager
Nuage Virtualization User Guide
5620 SAM