Specifications

AMF Introduction and Configuration
New and Enhanced Features in AlliedWare Plus 5.4.4 Major and Minor Versions 117
AMF Restricted-Login
By default, a user logged into any node on an AMF network is able to manage any other
node by using either working-sets or atmf remote login (provided the login username
exists on all nodes). Where the access provided by this feature is too wide, or contravenes
network security restrictions, this access can be limited by running the command “atmf
restricted-login” on page 207. This command will not be saved in the running
configuration; it is a network property that can be enabled or disabled from any ATMF
master. The status of restricted-login will be retained over a reboot.
When restricted login is enable on the network, only the ATMF Master nodes are able to
create working-sets or manage other devices via atmf remote-logins. Other nodes may
remote login to the ATMF Master, but they will require password authentication on that
master, and will then be able to create working-sets originating from the Master.
Note that once you have run this command, certain other commands that utilize the AMF
working-set command, such as the include, atmf reboot-rolling and show atmf group
members commands, will operate only on master nodes.
Loop-Free Data Plane
The current version of AMF does not control the data plane, so it is a requirement that the
network is configured such that the data plane (i.e. the paths defined by the data VLANs) is
kept loop free.
Aggregators
Dynamic Aggregators (LACP) cannot be used on ports configured as AMF links or cross-
links. Therefore any aggregated links in an AMF network need to be configured as static
aggregators.
VCStacks
If any VCStacks are included as AMF nodes it is a requirement that the VCS virtual MAC
feature is enabled to ensure correct operation of the AMF network. If the VCStack is
running as an AMF master node and backup is required, then removable external storage
media should be installed in both stack members.
AMF External Removable Media
In order to maintain a recovery capability, all AMF master nodes require external storage
media installed, such as a USB or SD card. This external storage is used to hold a backup of
all relevant files from all nodes within the AMF network, including other master nodes, so
it must be large enough to accommodate all of the backed up files. Files that are backed
up include all configuration files, release files, and scripts, but not core dumps, exception
logs, or technical support files.
Typically a 4GB capacity external media device would be of sufficient size to hold backups
for a 40 node AMF network.
When using Dual CFCs (Controller Fabric Card) in a SBx8100, a memory stick is required in
both CFCs.