Configuration Guide User guide

FastIron Configuration Guide 1583
53-1002494-02
DVMRP configuration on the Layer 3 switch and interface
DVMRP is enabled on each of the Brocade Layer 3 switches shown in Figure 178, on which
multicasts are expected. You can enable DVMRP on each Layer 3 switch independently or remotely
from one Layer 3 switch by a Telnet connection. Follow the same steps for each Layer 3 switch.
Globally enabling and disabling DVMRP
To globally enable DVMRP, enter the router dvmrp command.
Router1(config)#router dvmrp
Syntax: [no] router dvmrp
The behavior of the [no] router dvmrp command is as follows:
• Entering a router dvmrp command to enable DVMRP does not require a software reload.
• Entering a no router dvmrp command removes all configuration for PIM multicast on a Layer 3
switch (router pim level) only.
Globally enabling or risabling DVMRP without deleting multicast configuration
As stated above enter no router dvmrp removed PIM configuration. If you want to disable or enable
DVMRP without removing PIM configuration, enter the following commands.
Brocade(config)#router dvmrp
Brocade(config-pim-router)#disable-dvmrp
Syntax: [no] disable-dvmrp
Use the [no] version of the command to re-enable DVMRP.
Enabling DVMRP on an interface
After globally enabling DVMRP on a Layer 3 switch, enable it on each interface that will support the
protocol.
To enable DVMRP on S1 and interface 3, enter the following commands.
Router1(config)#router dvmrp
Router1(config-dvmrp-router)#int e 3
Router1(config-if-3)#ip dvmrp
Modifying DVMRP global parameters
DVMRP global parameters come with preset values. The defaults work well in most networks, but
you can modify the following global parameters if you need to:
• Neighbor timeout
• Route expire time
• Route discard time
• Prune age
• Graft retransmit time
• Probe interval
• Report interval
• Trigger interval