Lifeline
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Alcatel-Lucent
Beta
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CLI Configuration Guide
N+1 R
EDUNDANT
M
ANAGEMENT
P
ROCESSORS
Under the Lifeline management framework, there are multiple active instances of
the management process running on each line card, powered by its own
management processor. The management plane portion of each line card is
connected to a separate management plane switch in the switching card, while
the data plane portion is connected to a data plane switch in the switching card.
Additionally, a second switching card can be provided for redundancy, with a
parallel set of redundant connections between each line card and the second
switching card. This concept is illustrated below:
Figure 66: N+1 Redundant Management Architecture
It plays a critical role in ensuring that access to system management functions
through the management plane is always available. This will be elaborated further
in the following section using a few example scenarios:
L
IFELINE
S
OFTWARE
•
Lifeline Manager
Lifeline Manager is a Lifeline software architecture unit responsible for
detecting and responding to system failures. This manages the system
transition to Lifeline Mode and back to Normal Mode.
•
Lifeline Agent
Lifeline Agent is a Lifeline software architectural unit running on each line
card, which is responsible for lifeline framework functions. When the system is
running in the normal mode, Lifeline Agent caches all the configuration
information. It also caches all the dynamic/static
routing configuration.
When the system goes in to the Lifeline Mode, the Lifeline Agent uses this
configuration information to set up a minimal data plane to support
management access, thus providing remote access to the system.
Содержание OmniAccess 700
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