Configuring the ECN330-switch
4011553-KDU 137 365 Uen D 2006-06-16
OSPFv2 Dynamic Routing Protocol
OSPF overcomes all the problems of RIP. It uses a link state routing protocol to
generate a shortest-path tree, then builds up its routing table based on this tree.
OSPF produces a more stable network because the participating routers act on
network changes predictably and simultaneously, converging on the best route
more quickly than RIP. Moreover, when several equal-cost routes to a
destination exist, traffic can be distributed equally among them.
Non-IP Protocol Routing
The ECN330-switch supports IP routing only. Non-IP protocols such as IPX and
Appletalk cannot be routed by the ECN330-switch, and will be confined within
their local VLAN group unless bridged by an external router.
To coexist with a network built on multilayer switches, the subnetworks for non-
IP protocols must follow the same logical boundary as that of the IP
subnetworks. A separate multi-protocol router can then be used to link the
subnetworks by connecting to one port from each available VLAN on the
network.
6.20.3 Basic IP Interface Configuration
To allow routing between different IP subnets, IP Routing must be enabled as
described in this section. Also, a VLAN for each IP subnet that will be connected
directly to the ECN330-switch needs to be defined. Note that a VLAN must first
be created as described under section 6.12.1.7 on page 284 before configuring
the corresponding subnet. Remember that to manage the ECN330-switch in-
band, the IP subnet address must be defined for at least one VLAN.
Command Attributes
• IP Routing Status – Configures the ECN330-switch to operate as a
Layer 2 switch or as a multilayer routing switch. (Options: Disable this
field to restrict operation to Layer 2 switching; enable it to allow
multilayer operation at either Layer 2 or 3 as required.)
• This command affects both static and dynamic unicast routing.
• If IP routing is enabled, all IP packets are routed using either static
routing or dynamic routing through RIP or OSPF, and other packets
for all non-IP protocols (for example, NetBuei, NetWare or
AppleTalk) are switched based on MAC addresses. If IP routing is
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