Distance Vector Multicast Routing Protocol(DVMRP) Help

Help for DVMRP Global Configuration

Configurable Data

• Admin Mode - Select enable or disable from the dropdown menu. This sets the administrative status of DVMRP to active or inactive. The default is disable.

Non-Configurable Data

• Version - The current value of the DVMRP version string.

• Total Number of Routes - The number of routes in the DVMRP routing table.

• Reachable Routes - The number of routes in the DVMRP routing table that have a non-infinite metric.

Command Buttons

• Submit - Send the updated configuration to the switch. Configuration changes take effect immediately. These changes will not be retained across a power cycle unless a save is performed.

Help for DVMRP Interface Configuration

Selection Criteria

• Slot/Port - Select the interface for which data is to be configured. You must configure at least one router interface before you configure a DVMRP interface. Otherwise you will see a message telling you that no router interfaces are available, and the configuration screen will not be displayed.

Configurable Data

• Interface Mode - Select enable or disable from the pulldown menu to set the administrative mode of the selected DVMRP routing interface.

• Interface Metric - Enter the DVMRP metric for the selected interface. This value is sent in DVMRP messages as the cost to reach this network. Valid values are from (1 to 31).

Command Buttons

• Submit - Send the updated configuration to the switch. Configuration changes take effect immediately. These changes will not be retained across a power cycle unless a save is performed.

Help for DVMRP Configuration Summary

Selection Criteria

• Slot/Port - Select the interface for which data is to be displayed. You must configure at least one router interface before you can display data for a DVMRP interface. Otherwise you will see a message telling you that no router interfaces are available, and the configuration summary screen will not be displayed.

Non-Configurable Data

• Interface Mode - The administrative mode of the selected DVMRP routing interface, either enable or disable.

• Protocol State - The operational state of the DVMRP protocol on the selected interface, either operational or non-operational.

• Local Address - The IP address used as a source address in packets sent from the selected interface.

• Interface Metric - The metric used to calculate distance vectors for the selected interface.

• Generation ID - The DVMRP generation ID used by the router for the selected interface. This value is reset every time an interface is (re)started and is placed in prune messages. A change in generation ID informs the neighbor routers that any previous information about this router should be discarded.

• Received Bad Packets - The number of invalid packets received on the selected interface.

• Received Bad Routes - The number of invalid routes received on the selected interface.

• Sent Routes - The number of routes sent on the selected interface.

• Neighbor IP - The IP address of the neighbor whose information is displayed.

• State - The state of the specified neighbor router on the selected interface, either active or down.

• Neighbor Uptime - The DVMRP uptime for the specified neighbor on the selected interface. This is the time since the neighbor entry was learned.

• Neighbor Expiry Time - The DVMRP expiry time for the specified neighbor on the selected interface. This is the time left before this neighbor entry will age out, and is not applicable if the neighbor router's state is down.

• Generation ID - The DVMRP generation ID for the specified neighbor on the selected interface.

• Major Version - The DVMRP Major Version for the specified neighbor on the selected interface.

• Minor Version - The DVMRP Minor Version for the specified neighbor on the selected interface.

• Capabilities - The DVMRP capabilities of the specified neighbor on the selected interface.

• Received Routes - The number of routes received for the specified neighbor on the selected interface.

• Received Bad Packets - The number of invalid packets received for the specified neighbor on the selected interface.

• Received Bad Routes - The number of invalid routes received for the specified neighbor on the selected interface.

Command Buttons

• Refresh - Refresh the screen with the new data.

Help for DVMRP Next Hop Summary

Non-Configurable Data

• Source IP - The IP address used with the source mask to identify the source network for this table entry.

• Source Mask - The network mask used with the source IP address.

• Next Hop Interface - The outgoing interface for this next hop.

• Type - The next hop type. 'Leaf' means that no downstream dependent neighbors exist on the outgoing interface. Otherwise, the type is 'branch'.

Command Buttons

• Refresh - Refresh the screen with the new data

Help for DVMRP Prune Summary

Non-Configurable Data

• Group IP - The group address which has been pruned.

• Source IP - The address of the source or source network which has been pruned.

• Source Mask - The subnet mask to be combined with the source IP address to identify the source or source network which has been pruned.

• Expiry Time - The amount of time remaining before this prune should expire at the upstream neighbor. If no prune messages have been received from downstream neighbors, this is set to value of the default prune lifetime timer, otherwise it is set to the smallest received value or the default timer, whichever is less.

Command Buttons

• Refresh - Refresh the screen with the new data

Help for DVMRP Route Summary

Non-Configurable Data

• Source Address - The network address that is combined with the source mask to identify the sources for this entry.

• Source Mask - The subnet mask to be combined with the source address to identify the sources for this entry.

• Upstream Neighbor - The address of the upstream neighbor (e.g., RPF neighbor) from which IP datagrams from these sources are received.

• Interface - The interface on which IP datagrams sent by these sources are received. A value of 0 typically means the route is an aggregate for which no next-hop interface exists.

• Metric - The distance in hops to the source subnet.

• Expiry Time - The minimum amount of time remaining before this entry will be aged out.

• Up Time - The time since the route represented by this entry was learned by the router.

Command Buttons

• Refresh - Refresh the screen with the new data