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DXS-3600-32S 10GbE Layer 2/3 Switch CLI Reference Guide
Distance Vector Multicast Routing Protocol (DVMRP)
Commands
18-1 ip dvmrp
This command is used to enable the Distance Vector Multicast Routing Protocol (DVMRP) on an interface. To disable
DVMRP on the interface, use the no form of this command.
ip dvmrp no ip dvmrp
Parameters
Default
Command Mode
None.
By default, this option is disabled.
Interface Configuration Mode
Command Default Level
Level: 8. (EI Mode Only Command)
Usage Guideline
This command enables DVMRP on the specified interface.
If you want to use DVMRP to forward multicast packets, use the ip multicast-
routing command to enable the multicast global state.
To verify you configuration, use the show ip dvmrp interface command.
Example
This example shows how to enable DVMRP on interface VLAN 1.
DXS-3600-32S#configure terminal
DXS-3600-32S(config)#interface vlan 1
DXS-3600-32S(config-if)#ip dvmrp
DXS-3600-32S(config-if)#
Example
This example shows how to disable DVMRP on interface VLAN 1.
DXS-3600-32S#configure terminal
DXS-3600-32S(config)#interface vlan 1
DXS-3600-32S(config-if)#no ip dvmrp
DXS-3600-32S(config-if)#
18-2 ip dvmrp metric
This command is used to configure the metric value on the current interface. To restore the default value, use no form of this command.
ip dvmrp metric METRIC
no ip dvmrp metric
Parameters
METRIC
Specifies the metric value of the interface. The range is 1 to 31.
Default
The default value is 1.
Command Mode
Interface Configuration Mode
Command Default Level
Level: 8. (EI Mode Only Command)
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Usage Guideline
DXS-3600-32S 10GbE Layer 2/3 Switch CLI Reference Guide
For each source network reported, a route metric is associated with the route being reported. The metric is the sum of the interface metrics between the router originating the report and the source network. For the purposes of DVMRP, the
Infinity metric is defined to be 32. This limits the breadth across the whole DVMRP network and is necessary to place an upper bound on the convergence time of the protocol.
To verify you configuration, use the show ip dvmrp interface command.
Example
This example shows how to configure the DVMRP metric of VLAN 1 to 30.
DXS-3600-32S#configure terminal
DXS-3600-32S(config)#interface vlan 1
XS-3600-32S(config-if)#ip dvmrp metric 30
DXS-3600-32S(config-if)#
Example
This example shows how to configure the DVMRP metric of VLAN 2 back to default.
DXS-3600-32S#configure terminal
DXS-3600-32S(config)#interface vlan 2
XS-3600-32S(config-if)#no ip dvmrp metric
DXS-3600-32S(config-if)#
18-3 show ip dvmrp interface
This command is used to display DVMRP interface information.
show ip dvmrp interface [IFNAME]
Parameters
IFNAME
Specifies the interface name.
Default
Command Mode
None.
Privileged EXEC Mode.
Command Default Level
Level: 3. (EI Mode Only Command)
Usage Guideline
This command is used to display basic DVMRP interface information. If no interface name is specified, the command will list all interfaces’ info.
Example
This example shows how to show all DVMRP interfaces information.
DXS-3600-32S#show ip dvmrp interface
Interface IP Address Metric Generation ID State
------------ ----------------- ------ ------------- -------vlan1 10.90.90.90 1 1368947491 Enabled vlan2 90.1.1.1 1 0 Disabled
Total Entries: 2
DXS-3600-32S#
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DXS-3600-32S 10GbE Layer 2/3 Switch CLI Reference Guide
Example
This example shows how to show information of interface ‘vlan1’.
DXS-3600-32S#show ip dvmrp interface vlan1
Interface IP Address Metric Generation ID State
------------ ----------------- ------ ------------- -------vlan1 10.90.90.90 1 1368947491 Enabled
Total Entries: 1
DXS-3600-32S#
Display Parameters
Interface
IP Address
Generation ID
Metric
State
Description
Specifies the interface name.
The IP address of the interface.
Specifies the generation ID of this interface. This value is dynamically generated by the switch, and it is used for the neighbor to detect that whether the switch has restarted or not
The metric value of the interface, which is configured by command “ip dvmrp metric”.
Specifies the DVMRP interface state, which is configured by command “ip dvmrp”
18-4 show ip dvmrp neighbor
This command is used to display DVMRP neighbor information.
show ip dvmrp neighbor [IFNAME]
Parameters
IFNAME
Specifies an interface name.
Default
None.
Command Mode
Privileged EXEC Mode.
Command Default Level
Level: 3. (EI Mode Only Command)
Usage Guideline
This command is used to display DVMRP neighbor information. If no interface name is specified, this command will display DVMRP neighbor information on all interfaces.
Example
This example shows how to show all DVMRP neighbor information.
DXS-3600-32S#show ip dvmrp neighbor
Interface Neighbor Address Generation ID Expire Time
--------------- ---------------- ------------- ----------vlan1 10.48.74.123 1368354259 00:00:32 vlan2 172.18.1.2 1368355860 00:00:05
Total Entries : 2
DXS-3600-32S#
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DXS-3600-32S 10GbE Layer 2/3 Switch CLI Reference Guide
Example
This example shows how to show neighbor information of interface ‘vlan1’.
DXS-3600-32S#show ip dvmrp neighbor vlan1
Interface Neighbor Address Generation ID Expire Time
------------- ---------------- ------------- ----------vlan1 10.90.90.2 1368355860 00:00:31
Total Entries: 1
DXS-3600-32S#
Display Parameters
Interface
Neighbor Address
Generation ID
Expire Time
Description
Specify the interface name.
Specify the neighbor’s address of the specified interface.
Specify the generation ID of the neighbor. This value is dynamically generated by the neighbor switch, and it is used for the local switch to detect that whether the neighbor has restarted or not
After this time, the neighbor will be aged out if no new probe message received from the neighbor.
18-5 show ip dvmrp route
This command is used to display the DVMRP route info.
show ip dvmrp route [IPADDRESS MASK]
Parameters
IPADDRESS
MASK
Specifies IP address. Together with the parameter MASK, specify displaying the route info for the specified network.
Specifies the mask of the IP address.
Default
None.
Command Mode
Privileged EXEC Mode.
Command Default Level
Level: 3. (EI Mode Only Command)
Usage Guideline
This command is used to display route information learned by DVMRP. If no parameter added, this command will display all the route information on the switch.
Example
This example shows how to display all the route information learned by DVMRP.
DXS-3600-32S#show ip dvmrp route
DVMRP Routing Table
Source Network Upstream Neighbor Metric Learned Interface Expire
----------------- ----------------- ------ ------- ------------ ------
2.0.0.0/8 10.90.90.90 2 Dynamic vlan1 00:01:22
10.0.0.0/8 10.90.90.2 1 Local vlan1 -
Total Entries: 2
DXS-3600-32S#
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DXS-3600-32S 10GbE Layer 2/3 Switch CLI Reference Guide
Example
This example shows how to display routing information of 10.3.3.3 and mask
255.0.0.0
DXS-3600-32S#show ip dvmrp route 10.3.3.3 255.0.0.0
DVMRP Routing Table
Source Network Upstream Neighbor Metric Learned Interface Expire
----------------- ----------------- ------ ------- ----------- ------
10.0.0.0/8 10.90.90.2 1 Local vlan1 -
Total Entries: 1
DXS-3600-32S#
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