HP 3500YL - Manual (Page 97)

PIM-DM (Dense Mode)
Operating Notes
Syntax: show ip pim [neighbor [< ip-address >]]
Lists the same information as show ip pim neighbor
(page 3-34) for the specified PIM neighbor:
This example simulates output from Routing Switch “#1” in Figure 3-4 on Page 3-20. The data is from
the first downstream neighbor ( Routing Switch “#2”).
ProCurve(config)# show ip pim neighbor 10.29.30.2
PIM Neighbor
IP Address : 10.29.30.2
VLAN : 29
Up Time (sec) : 26
Expire Time (sec) : 79
Figure 3-16. Example From Routing Switch “#1” in Figure 3-4 on Page 3-20
Showing a Specific Neighbor (Routing Switch “#2”)
Operating Notes
PIM Routers without State Refresh Messaging Capability. A PIM
router without a state refresh messaging capability learns of currently active
flows in a multicast network through periodic flood and prune cycles on the
path back to the source. The switches covered in this guide sense downstream
multicast routers that do not have the state refresh capability and will period­
ically flood active multicast groups to these devices. This periodic flooding is
not necessary if all of the downstream multicast routers are switches covered
in this guide. (The ProCurve Routing Switch Series 9300 and the routers
offered by some other vendors do not offer the state refresh capability.)
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