PIM-DM (Dense Mode) on the 5300xl Switches
Operating Notes
Syntax: show ip pim [neighbor [< ip-address >]]
Lists the same information as show ip pim neighbor
(page 5-33) for the specified PIM neighbor:
This example simulates output from the “5304XL #1” Routing Switch in Figure 5-4 on Page 5-20. The
data is from the first downstream neighbor (“5300XL #2”).
Figure 5-16. Example From the “5304XL #1” Routing Switch in Figure 5-4 on Page
5-20 Showing a Specific Neighbor (“5300XL #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 Switch Series 5300XL devices 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 HP ProCurve
5300XL devices. (The HP ProCurve Routing Switch Series 9300 and the routers
offered by some other vendors do not offer the state refresh capability.)
5-34
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