Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) User Manual
Page 1549
AMF Introduction and Configuration
Software Reference for x310 Series Switches
C613-50046-01 REV A
AlliedWare Plus
TM
Operating System - Version 5.4.4C
59.5
AMF master nodes are supported on SBx908 and SBx8100 platforms; an AMF license is
required for each master. Only one AMF master license is required even if two CFCs are
installed. The license is for the chassis, not the CFC.
AMF members are commonly referred to as nodes. A node can be either a single switch, or
a VCStack.
Domains
Every AMF node belongs to an AMF domain, which may be comprised of multiple nodes
or only a single node. AMF master nodes are included in the core domain, and all other
domains are rooted in the core domain. AMF domains are determined by AMF crosslinks,
(see
). All nodes connected via AMF crosslinks are part of the
same domain, and nodes connected via regular AMF links will be part of a higher or lower
domain depending on whether they are closer to or further away from the core domain.
Nodes within a domain must be connected in either a chain or ring topology.
This means that a maximum of two crosslinks should be configured on any single node.
The advantage of an AMF domain is that two links from a domain to a single higher level
domain (closer to the core) will provide redundant AMF links. It is recommended that an
AMF domain should only be connected to a single higher level domain, though it may be
connected to multiple lower level domains.
Core distance
This is the distance (hop count) between a particular domain and its Core domain. The
Core domain has a Core distance of 0, and the maximum recommended Core distance in
an AMF network is 8.
Note
A VCStack needs to have consistent licensing on all stack members. Therefore,
an AMF master license would be required on both devices in an SBx908 stack.
■
When more than one AMF master node exists in an AMF network, it is
important to know that these operate completely independently of each
other, and there is no synchronization between AMF master nodes.
■
For redundancy, you can have multiple master nodes, each acting as a master
for the network. But, there is no synchronization of status or data files
between the masters. The behavior of a master node is not changed at all by
the presence of other master nodes.
Note
We recommend a maximum number of 12 nodes per domain.