User guide

Quick Steps for Configuring DVMRP Configuring DVMRP
page 6-4 OmniSwitch AOS Release 7 Advanced Routing Configuration Guide March 2015
Quick Steps for Configuring DVMRP
Note. DVMRP requires that IP Multicast Switching (IPMS) is enabled. IPMS is automatically enabled
when a multicast routing protocol (either PIM or DVMRP) is enabled globally and on an interface and
when the operational status of the interface is up. However, if you wish to manually enable IPMS on the
switch, use the ip multicast admin-state command.
1 Manually load DVMRP into memory by entering the following command:
-> ip load dvmrp
2 Create a router port (i.e., interface) on an existing VLAN by specifying a valid IP address. To do this,
use the ip interface command. For example:
-> ip interface vlan-2 address 178.14.1.43 vlan 2
3 Enable the DVMRP protocol on the interface via the ip dvmrp interface command. For example:
-> ip dvmrp interface vlan-2
4 Globally enable the DVMRP protocol by entering the following command:
-> ip dvmrp admin-state enable
5 Save your changes to the Working directory’s boot.cfg file by entering the following command:
-> write memory
Once loaded and enabled, DVMRP is typically ready to use because its default values are appropriate for
the majority of installations.
Note. Optional. To verify DVMRP interface status, enter the show ip dvmrp interface command. The
display is similar to the one shown here:
Address Vlan Metric Admin-Status Oper-Status
-----------------+------+--------+-------------+-------------
178.14.1.43 44 1 Enabled Enabled
To verify the global DVMRP status, enter the show ip dvmrp command:
DVMRP Admin Status = enabled,
Flash Interval = 5,
Graft Timeout = 5,
Neighbor Interval = 10,
Neighbor Timeout = 35,
Prune Lifetime = 7200,
Prune Timeout = 30,
Report Interval = 60,
Route Holddown = 120,
Route Timeout = 140,
Subord Default = true,
Number of Routes = 20,
Number of Reachable Routes = 18
For more information about these displays, see the OmniSwitch AOS Release 7 CLI Reference Guide.