Netgear XCM8810 Chassis User Manual - Page 726

NETGEAR 8800 User Manual PIM Overview The switch supports both dense mode and sparse mode operation. You can configure dense mode or sparse mode on a per-interface basis. After they are enabled, some interfaces can run dense mode, while others run sparse mode. The switch also supports PIM snooping. The following sections provide additional information on PIM: • PIM Edge Mode on page 726 • PIM Dense Mode on page 726 • PIM Sparse Mode on page 728 • PIM Mode Interoperation on page 729 • PIM Source Specific Multicast on page 729 • PIM Snooping on page 731 PIM Edge Mode PIM Edge Mode is a subset of PIM that operates with the following restrictions: • The switch does not act as a candidate rendezvous point (CRP). • The switch does not act as a candidate bootstrap router (CBSR). • At most, two active PIM-SM interfaces are permitted. There is no restriction on the number of passive interfaces (within the limit of the maximum IP interfaces). • Only PIM Sparse Mode (PIM-SM) is supported. Note: This feature is supported at and above the license level listed for this feature in the license tables in Appendix A, XCM8800 Software Licenses. Active PIM interfaces can have other PIM enabled routers on them. Passive interfaces should only have hosts sourcing or receiving multicast traffic. PIM Dense Mode Protocol-Independent Multicast - Dense Mode (PIM-DM) is a multicast routing protocol. A new feature, called PIM-DM state refresh, creates two PIM-DM operating modes, which are described in the following sections: • PIM-DM Without State Refresh on page 727 • PIM-DM with State Refresh on page 728 726 | Chapter 27. Multicast Routing and Switching