When you open a CMD prompt and type mrinfo.exe, you receive:
Usage: mrinfo \[-n?\] \[-i address\] \[-t secs\] \[-r retries\] destination
-n Display IP addresses in numeric format
-i address Address of local interface to send query out
-t seconds Timeout in seconds for IGMP queries (default = 3 seconds)
-r retries Number of extra times to send the SNMP queries (default = 0)
-? Print Usage
destination Address or name of destination</b>
172.16.172.1 (router1.test.com.) \[version 11.1,prune,mtrace,snmp\]
172.16.172.1 --> 0.0.0.0 (local) \[1/0/pim/querier/leaf\]
172.16.245.227 --> 172.16.245.229 (router9.test.com.) \[1/0/pim\]
172.16.245.227 --> 172.16.245.225 (router5.test.com.) \[1/0/pim\]
172.16.245.227 --> 172.16.245.228 (router8.test.com.) \[1/0/pim\]
172.16.245.227 --> 172.16.245.226 (router6.test.com.) \[1/0/pim\]
The --> shows the neighboring interfaces for this router.
0.0.0.0 means that there are no neighboring routers from this interface.
\[1/0/pim/querier/leaf\] is compose of the following elements:
Metric - The cost of the link, used in routing calculations.
TTL Threshold - A router forwards a multicast datagram if the TTL in the IP header
is greater than the TTL threshold for the interface.
This is used to limit the distance packets can travel.
PIM - This is the type of routing protocol used. Protocol Independent Multicast.
Querier - The designated multicast router that sends IGMP Host Membership queries.
Leaf - Indicates that this router is on the edge of the network.