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AMF Commands
AMF Software Reference Supplement for Allied Telesis x-Series Switches
104 AlliedWare Plus
TM
Operating System - Software Version 5.4.3-1.4 and later C613-50031-01 REV B
switchport atmf-crosslink
This command configures the selected port or aggregated link to be an AMF crosslink.
Running this command will automatically place the port or aggregator into trunk mode
(i.e. switchport mode trunk).
The connection between two AMF masters must utilize a crosslink. Crosslinks are used to
carry the AMF control information between master nodes. Multiple crosslinks can be
configured between two master nodes, but only one crosslink can be active at any
particular time. All other crosslinks between masters will be placed in the blocking state, in
order to prevent broadcast storms.
The “no” variant of this command removes any crosslink that may exist for the selected
port or aggregated link.
Syntax switchport atmf-crosslink
no switchport atmf-crosslink
Mode
Interface
Usage Crosslinks can be used anywhere within an AMF network. They have the effect of
separating the AMF network into separate domains.
Where this command is used, it is also good practice to use the switchport trunk native
vlan command with its parameter “none” selected. This is to prevent a network storm on a
topology of ring connected switches.
Example-1 To make a switchport 1.0.1 an AMF crosslink, use the following commands:
Parameter Description
switchport The Layer 2 Interface
atmf-crosslink Sets the switchport to be an AMF crosslink.
Node_1#
configure terminal
Node_1(config)#
int port 1.0.1
Node_1(config-if)#
switchport atmf-crosslink