Redistributing Sources - Cisco Catalyst 9500 series Configuration Manual

Configuring MSDP
• Sources you advertise (based on your sources)
• Receivers of source information (based on knowing the requestor)
For more information, see the
Messages, on page

Redistributing Sources

SA messages originate on RPs to which sources have registered. By default, any source that registers with an
RP is advertised. The A flag is set in the RP when a source is registered, which means the source is advertised
in an SA unless it is filtered.
Follow these steps to further restrict which registered sources are advertised:
Procedure
Step 1
Step 2
Step 3
Redistributing Sources, on page 33
35.
Command or Action
enable
Example:
Device> enable
configure terminal
Example:
Device# configure terminal
ip msdp redistribute [list
access-list-name] [asn
aspath-access-list-number]
[route-map map]
Example:
Device(config)# ip msdp
redistribute list 21
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
Controlling Source Information that Your Switch Originates
and the
Purpose
Enables privileged EXEC mode. Enter your password if
prompted.
Enters the global configuration mode.
Configures which (S,G) entries from the multicast routing table
are advertised in SA messages.
By default, only sources within the local domain are advertised.
• (Optional) list access-list-name— Enters the name or
number of an IP standard or extended access list. The
range is 1 to 99 for standard access lists and 100 to 199
for extended lists. The access list controls which local
sources are advertised and to which groups they send.
• (Optional) asn aspath-access-list-number—Enters the IP
standard or extended access list number in the range 1 to
199. This access list number must also be configured in
the ip as-path access-list command.
• (Optional) route-map map—Enters the IP standard or
extended access list number in the range 1 to 199. This
access list number must also be configured in the ip
as-path access-list command.
The Device advertises (S,G) pairs according to the access list
or autonomous system path access list.
Filtering Source-Active Request
33