Specifications

AMF Introduction and Configuration
New and Enhanced Features in AlliedWare Plus 5.4.4 Major and Minor Versions 125
AMF Tunneling (Virtual Links)
AMF Tunneling enables you to extend your local uplinks and downlinks across a wide area
network. The tunneled data is then wrapped in a Layer 3 IP packet for transmission across
a wide area IP network. A simple AMF tunnel is shown in “AMF virtual link” on page 125.
Switches 1 and 2 encapsulate the Layer 2 AMF uplink and downlink data and wrap this
inside a Layer 3 IP packet to enable it to traverse an IP Network. Routers 1 and 2 (and any
other routers within the cloud) perform a conventional routing function, reading the IP
addresses of the tunneled packets and forwarding them to their destination.
Once connected through the tunnel, the remote AMF members will have the same AMF
capabilities as a directly connected AMF member.
Figure 5: AMF virtual link
UDP Header
IP Header
IP
Network
AMF Local Site (subnet 192.168.1.0)
AMF Local Site (subnet 192.168.2.0)
ATMF virtual-link ID and IP (Example1B).eps
amf virtual-link id ip remote-id remote-ip (Example)
Switch 1
AMF Node 10
Router 1
Router 2
192.168.1.1
Tunnel ID = 1
Tunnel remote ID = 2
192.168.2.1
Tunnel ID = 2
Tunnel remote ID = 1
Switch 2
AMF Node 20
192.168.1.1
Tunneled Packet - AMF Up/Down Link
AMF Up/Downlink
(Layer 2 connectivity)
AMF Crosslink
(Layer 2 connectivity)
192.168.2.1
192.168.2.1
192.168.1.1