Multicast Forwarding Information Base; Msdp Md5 Password Authentication; How To Implement Multicast Routing - Cisco XR12000 Series Configuration Manual

Multicast Forwarding Information Base

protocols; they select the preferred multicast route from comparable ones, and they notify their clients of
changes in selected attributes of any multicast route.
Multicast Forwarding Information Base
Multicast Forwarding Information Base (MFIB) is a protocol-independent multicast forwarding system that
contains unique multicast forwarding entries for each source or group pair known in a given network. There
is a separate MFIB for every logical network (VPN) in which the router is configured. Each MFIB entry
resolves a given source or group pair to an incoming interface (IIF) for reverse forwarding (RPF) checking
and an outgoing interface list (olist) for multicast forwarding.

MSDP MD5 Password Authentication

MSDP MD5 password authentication is an enhancement to support Message Digest 5 (MD5) signature
protection on a TCP connection between two Multicast Source Discovery Protocol (MSDP) peers. This feature
provides added security by protecting MSDP against the threat of spoofed TCP segments being introduced
into the TCP connection stream.
MSDP MD5 password authentication verifies each segment sent on the TCP connection between MSDP peers.
The password clear command is used to enable MD5 authentication for TCP connections between two MSDP
peers. When MD5 authentication is enabled between two MSDP peers, each segment sent on the TCP
connection between the peers is verified.
MSDP MD5 authentication must be configured with the same password on both MSDP peers to enable
Note
the connection between them. The 'password encrypted' command is used only for applying the stored
running configuration. Once you configure the MSDP MD5 authentication, you can restore the configuration
using this command.
MSDP MD5 password authentication uses an industry-standard MD5 algorithm for improved reliability and
security.

How to Implement Multicast Routing

This section contains instructions for both building a basic multicast configuration, as well as optional tasks
to help you to optimize, debug, and discover the routers in your multicast network.
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Cisco IOS XR Multicast Configuration Guide for the Cisco XR12000 Series Router, Release 5.1.x
44
Configuring Multicast VPN, on page 59
Implementing Multicast Routing on Cisco IOS XR Software
(optional)
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