FDDINetwork Topologies 83
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Toavoid this situation, set up a static route that forces the traffic between jill
and judy to pass over the FDDI link; however,static routing is not
recommendedin a network beyond a few nodes in size. For efficient IP routing
in large FDDI/Ethernet networks, use a routing package that providesrouting
metrics in addition to hop count (for example, gated, public domain software
available by the Center for Theory and Simulation in Science at Cornell
University).
Toimprove the end-to-end system performance across the boundary between
the networks, you may need to alter the default MTU for the FDDI network
(see “Performance Across Bridges” on page25) or to disable the MTU path
discovery feature (see “Improving Performance” on page27).