Administering Interfaces - 3Com CoreBuilder 2500 User Manual

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HAPTER DMINISTERING
Administering
Interfaces
IPX R
OUTING
An IPX interface defines the relationship between an IPX Virtual LAN
(VLAN) and the IPX network. Every IPX interface has one IPX VLAN
associated with it. Each switching module has one IPX interface defined
for each subnetwork directly connected to it.
Before you define an associated interface, define a VLAN, as described in
Chapter 9, "Administering VLANs."
An IPX interface has the following information associated with it:
IPX network address — You set this 4-byte address. Make each
address unique within the network.
Cost — The system uses the cost, a number between 1 and 15, to
calculate route metrics. Unless your network has special requirements,
such as the need for redundant paths, assign a cost of 1 to each
interface.
Frame format — IPX routing uses four Ethernet frame formats and
two FDDI frame formats. The Ethernet frame formats are Ethernet
Type II, Novell 802.3 raw, 802.2 LLC, and 802.3 SNAP. The FDDI frame
formats are FDDI 802.2 and FDDI SNAP.
The two FDDI frame formats correspond to the Ethernet 802.2 LLC
and 802.3 SNAP frame formats. If you select either of these Ethernet
frame formats, the corresponding FDDI frame format is automatically
selected for shared Ethernet and FDDI ports.
State — The status of the IPX interface indicates whether the
interface is available for communications (
VLAN index — The VLAN index indicates the bridge ports that are
associated with the IPX interface. When the interface prompts you for
this option, a list of available VLAN indexes and the ports associated
with them appears.
) or unavailable (
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).