10 - Virtualized Services; Virtualized Services Overview; Distributed Virtual Routing And Switching Overview - Alcatel-Lucent 5620 User Manual

Release 12.0 R7 | December 2014 | 3HE 08833 AAAD TQZZA Edition 01
10 — Virtualized services
10.1

Virtualized services overview

The 5620 SAM provides support for virtualized services. Management and
assurance functionality for services are extended to accommodate the unique
requirements for virtualized services. As the dVRS service solution is designed to
allow for complete VM mobility, 5620 SAM service management is suited to
manage a dynamic service. In addition to the core service management and assurance
functionality available from the 5620 SAM and 5650 CPAM, the following
functionality is added to the 5620 SAM for virtualized services:
•
Automatic discovery of dVRS, EVPN, and VPRN services from the 7850 VSG
or standalone VSC and creation of services elements.
•
Comprehensive connectivity log for virtual components to provide a historical
record of state changes in VMs and V-Ports.
•
Historical event correlation to isolate the root cause of a problem and the impacts
to service.
See the 5620 SAM User Guide for more information on service management. See the
5650 CPAM User Guide for more information on service troubleshooting.
See Chapter
troubleshooting specific to data centers.
10.2

Distributed virtual routing and switching overview

The Alcatel-Lucent distributed Virtual Routing and Switching (dVRS) service
solution is implemented and monitored by the VSD. It is unique to data centers
networking because it functions with the assumption that the majority of network
traffic is between VMs. The service is a combined L2/L3 forwarding solution that
consists of two component services which are discovered and monitored by the
5620 SAM:
•
dVRS service
•
EVPN service
The two components are associated using auto-bind tunnels. Underlying transport
towards the VMs is encapsulated with VxLAN over UDP tunnels. Tunnels can be
encapsulated with VxLAN at the V-Switch or at the 7850 VSG. Transport on the
auto-bind tunnels is encapsulated using VPN over GRE tunnels. All VxLAN and
GRE tunnels originate and terminate on the V-Switch. Therefore, the 5620 SAM can
deduce upstream routers and ports on the V-Switch. These associations can be used
for correlation and service mapping for associated virtual components, such as the
VSC.
Figure
distributed virtual routing and switching solution.
10-2
11 for more information and workflows on service management and
10-1 shows the main service and virtual network components in the
Alcatel-Lucent 5620 Service Aware Manager
Nuage Virtualization User Guide
5620 SAM