User guide

E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
15-3
O
VERVIEW OF
IPX
Traffic within each VLAN is switched using the Ethernet MAC address. Traffic between
Exec and Support is routed using the IPX NetID. Traffic cannot be sent between the IP
VLANs (Finance and Personnel) and the IPX VLANs (Exec and Support).
IPX R
OUTING
P
ERFORMANCE
To use IPX routing, you must have a switch that has the “i” chipset. Switches that have
the “i” chipset are capable of performing IPX routing at wire-speed.
Switches that do not have the “i” chipset no longer support IPX routing capabilities.
Previous versions of ExtremeWare supported CPU-based IPX routing on switches that
did not have the “i” chipset. CPU-based IPX routing as been removed on switches that
do not use the “i” chipset to support other features in ExtremeWare.
IPX E
NCAPSULATION
T
YPES
Novell NetWare
™
supports four types of frame encapsulation. The ExtremeWare term
for each type is described in Table 15-1.
To configure a VLAN to use a particular encapsulation type, use the following
command:
config vlan <name> xnetid <netid> [enet_ii | enet_8023 | enet_8022 |
enet_snap]
Table 15-1: IPX Encapsulation Types
Name Description
ENET_II The frame uses the standard Ethernet 2 header.
ENET_8023 The frame includes the IEEE 802.3 length field, but does not
include the IEEE 802.2 Logical Link Control (LLC) header.
This encapsulation is used by NetWare version 2.x and the
original 3.x version.
ENET_8022 The frame uses the standard IEEE format and includes the
IEEE 802.2 LLC header. This encapsulation is used by
NetWare version 3.12 and 4.x.
ENET_SNAP The frame adds a Subnetwork Access Protocol (SNAP)
header to the IEEE 802.2 LLC header.