User Manual

Enterasys X-Pedition User Reference Manual 99

Peer Address Mapping

Peer addresses allow you to specify a certain destination address for a specific virtual channel. This

allows you to set the destination address for a virtual channel using the atm set peer-addr

command. This way, a virtual channel can be dedicated to handle traffic between two specific

devices.

Note: The default interface type is “broadcast.” If you connect an interface to a router capable of

“point-to-point” only, you must specify the interface type as point-to-point within the

configuration. In this case, you must specify a peer address.

Mapped addresses are useful when you do not want to specify the peer address for the ATM port

using the interface create command. This would be the case if the interface is created for a VLAN

and there are many peer addresses on the VLAN. If any of the peers on the VLAN do not support

InArp or IPCP/IPXCP, then a mapped address must be configured to determine the destination

address.

Note: If a virtual channel is configured in the “VC-Muxing” mode or if the interface type is set

to “point-to-point,” you must specify a peer address as part of the interface create

command.

Mapping a Peer Address to a Virtual Channel

To map a peer address on an ATM port to a specific virtual channel, enter the following command

in Configure mode:

The following is a description of the parameters used to map a peer address to a virtual channel:

port <port> Specifies a single port, including virtual channel, in the format:

media.slot.port.vpi.vci.

media Is the media type. This is always at for an ATM port.

slot The slot number where the module is installed.

port The number of the port through which data is passing.

vpi Virtual Path Identifier.

vci Virtual Channel Identifier. The virtual channel to which you will map a peer

address. This allows you to define an interface (assigned to a VLAN) with multiple

peer membership. In addition, it allows you to assign intercommunication between

specific peers on that VLAN. This feature is helpful when a peer does not support

inverse ARP or IPCP/IPXCP; in this case, you can configure any peer mapping to

that peer to define the peer destination address.

Maps a peer address to a specific virtual

channel.

atm set peer-addr port <port> ip-address

<ipaddr>|ipx-address <netaddr>.<macaddr>