Multicast and Routing Guide K/KA/KB.15.15
Example 41 Showing source-DR PIM router
Source-DR PIM router. A flow's Neighbor field is empty for a PIM Router with a directly connected
source.
HP Switch(config)# show ip mroute
IP Multicast Route Entries
Total number of entries : 1
Group Address Source Address Neighbor VLAN
--------------- --------------- ---------------- ----
239.255.11.1 10.0.0.10 20
Example 42 Showing intermediate PIM router
Flows show their adjacent PIM neighbor towards the source.
HP Switch(config)# show ip mroute
IP Multicast Route Entries
Total number of entries : 2
Group Address Source Address Neighbor VLAN
--------------- --------------- ---------------- ----
239.255.12.42 10.0.0.10 20.0.0.1 20
239.255.255.255 10.0.0.10 20.0.0.1 20
Example 43 Showing new RP special case
RP special case: When run on a RP, registered but non-forwarding flows are displayed without a
neighbor value. This is identical in appearance to a direct-connected source, but on an RP this
indicates the unique registered, non-forwarding condition.
HP Switch(config)# show ip mroute
IP Multicast Route Entries
Total number of entries : 2
Group Address Source Address Neighbor VLAN
--------------- --------------- ---------------- ----
239.255.12.42 10.0.0.10 20.0.0.1 20
239.255.5.20 10.0.0.10 20
Listing data for an active multicast group
Syntax:
show ip mroute [group-addr][source-addr]
Lists data for the specified multicast flow (single-group pair.)
Data output list
Group address The multicast group IP address for the
specific flow.
Source address The source IP address for the specific flow.
Neighbor Lists the IP address of the upstream next-hop
router running PIM-SM; that is, the router
from which the router is receiving datagrams
for the current multicast group. This value is
0.0.0.0 if the router has not detected the
upstream next-hop router's IP address. This
field is empty if the multicast server is directly
connected to the router.
VLAN The interface on which the router received
the multicast flow.
Displaying PIM route data 81