Name: Cisco Catalyst 3850 series
Brand: Cisco
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Although the following illustration and example uses routers in the configuration, any device (router or

switch) can be used.

Note

Figure 10: MSDP Running Between RP Peers

When MSDP is implemented, the following sequence of events occurs:

When a PIM designated device (DR) registers a source with its RP as illustrated in the figure, the RP sends

a Source-Active (SA) message to all of its MSDP peers.

The DR sends the encapsulated data to the RP only once per source (when the source goes active). If the

source times out, this process happens again when it goes active again. This situation is different from the

periodic SA message that contains all sources that are registered to the originating RP. Those SA messages

are MSDP control packets, and, thus, do not contain encapsulated data from active sources.

Note

IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)

OL-32598-01 197

Configuring MSDP

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Cisco Catalyst 3850 series Specifications

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