Multicast Routing Definition of Terms

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CIDR Addr
This is the actual route being passed around in the DVMRP routing table. It is expressed in the CIDR form of address/bits, where "bits" is the number of 1-bits in the netmask (e.g. 25 means the netmask is 255.255.255.128). Note = is used to designate an exact match. An address of =131.179/16 will only match the route 131.179/16, while an address of 131.179/16 will match 131.179/16, 131.179.48/24, etc.
AS Number
This is the AS that advertises this route into the unicast (BGP) routing table. If it is a provider's AS, it is the site's unicast provider, but may not be the provider of multicast service.
State
"up" means the route is currently being advertised in the DVMRP routing table, "down" means it is not.
Change
This is the date and time that the last change in state was reported.
Metric
This is the metric reported for this route at the end of the last hour. A metric of 32 indicates the route is unreachable. A metric greater than 32 means the route is being advertised as poison reverse route.
Updates
The number of updates received for this route during the last hour. A route update should be sent once per minute unless route changes cause additional updates to be triggered.
Flaps
This is the average number of flaps per hour this route has seen in the time period requested (current hour, current week, or current month).
Uptime
This is the percentage of hours during the time period in which the route has been up.
Changes
This is the number of times this route has changed state during the time period requested.