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Foundry Networks Switch and Router User Manual

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Configuring IP Multicast Protocols
December 2000 18 - 19
This display shows the following information.
This Field... Displays...
Global PIM Sparse mode settings
Hello interval How frequently the Layer 3 Switch sends PIM Sparse hello messages
to its PIM Sparse neighbors. This field show the number of seconds
between hello messages. PIM Sparse routers use hello messages to
discover one another.
Neighbor timeout How many seconds the Layer 3 Switch will wait for a hello message
from a neighbor before determining that the neighbor is no longer
present and removing cached PIM Sparse forwarding entries for the
neighbor.
Bootstrap Msg interval How frequently the BSR configured on the Layer 3 Switch sends the
RP set to the RPs within the PIM Sparse domain. The RP set is a list
of candidate RPs and their group prefixes. A candidate RPs group
prefix indicates the range of PIM Sparse group numbers for which it
can be an RP.
Note: This field contains a value only if an interface on the Layer 3
Switch is elected to be the BSR. Otherwise, the field is blank.
Candidate-RP Advertisement interval How frequently the candidate PR configured on the Layer 3 Switch
sends candidate RP advertisement messages to the BSR.
Note: This field contains a value only if an interface on the Layer 3
Switch is configured as a candidate RP. Otherwise, the field is blank.
Join/Prune interval How frequently the Layer 3 Switch sends PIM Sparse Join/Prune
messages for the multicast groups it is forwarding. This field show the
number of seconds between Join/Prune messages.
The Layer 3 Switch sends Join/Prune messages on behalf of
multicast receivers who want to join or leave a PIM Sparse group.
When forwarding packets from PIM Sparse sources, the Layer 3
Switch sends the packets only on the interfaces on which it has
received join requests in Join/Prune messages for the sources group.
You can change the Join/Prune interval if needed. See Changing the
PIM Join and Prune Message Interval on page 18-17.
SPT Threshold The number of packets the Layer 3 Switch sends using the path
through the RP before switching to using the SPT path.
PIM Sparse interface information
Note: You also can display IP multicast interface information using the show ip pim interface command.
However, this command lists all IP multicast interfaces, including regular PIM (dense mode) and DVMRP
interfaces. The show ip pim sparse command lists only the PIM Sparse interfaces.
Interface The type of interface and the interface number. The interface type
can be one of the following:
Ethernet
VE
The number is either a port number (and slot number if applicable) or
the virtual interface (VE) number.

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Foundry Networks Switch and Router Specifications

General IconGeneral
BrandFoundry Networks
ModelSwitch and Router
CategorySwitch
LanguageEnglish

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