Configuration Guide User guide

1200 FastIron Configuration Guide
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RIP parameters and defaults
A RIP route can have a maximum cost of 15. Any destination with a higher cost is considered
unreachable. Although limiting to larger networks, the low maximum hop count prevents endless
loops in the network.
Brocade Layer 3 Switches support the following RIP versions:
• Version (V1)
• V1 compatible with V2
• Version (V2) (the default)
ICMP host unreachable message for undeliverable ARPs
If the router receives an ARP request packet that it is unable to deliver to the final destination
because of the ARP timeout and no ARP response is received (the router knows of no route to the
destination address), the router sends an ICMP Host Unreachable message to the source.
RIP parameters and defaults
The following tables list the RIP parameters, their default values, and where to find configuration
information.
RIP global parameters
Table 205 lists the global RIP parameters and their default values, and indicates where you can
find configuration information.
TABLE 205 RIP global parameters
Parameter Description Default Reference
RIP state The global state of the protocol.
NOTE: You also must enable the protocol on individual
interfaces. Globally enabling the protocol does not
allow interfaces to send and receive RIP information.
Refer to Table 206 on page 1201.
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Administrative
distance
The administrative distance is a numeric value assigned to
each type of route on the router.
When the router is selecting from among multiple routes
(sometimes of different origins) to the same destination, the
router compares the administrative distances of the routes and
selects the route with the lowest administrative distance.
This parameter applies to routes originated by RIP. The
administrative distance stays with a route when it is
redistributed into other routing protocols.
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Redistribution RIP can redistribute routes from other routing protocols such as
OSPF and BGP4 into RIP. A redistributed route is one that a
router learns through another protocol, then distributes into RIP.
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