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enable msdp export local-sa

enable msdp export local-sa {export-filter filter-name} {vr vrname}

Description

Enables the advertisement of local sources to groups for which the router is an RP.

Syntax Description

filter-name Specifies the policy to associate with the export of local sources. No policy is specified by default.
vrname Specifies the name of the virtual router to which this command applies. If a name is not specified, it is extracted from the current CLI context.

Default

By default, the export of local sources is enabled. All sources are advertised if the router is an RP for the groups.

Usage Guidelines

You can create a policy to filter out some of the local sources so that they are not advertised to MSDP peers and exposed to the external multicast domain. To configure an export filter, you must first disable the export of local sources (with the disable msdp export local-sa command), and then re-enable it with an export filter (with the enable msdp export local-sa export-filter command).

You can use the following policy attributes in an export policy. All other attributes are ignored.
  • Match:
    • multicast-group
    • multicast-source
    • pim-rp
  • Set:
    • permit
    • deny

Please note that the syntax for “multicast-group”, “multicast-source,” and “pim-rp” are the same as for the “nlri” policy attribute.

[multicast-group | multicast-source | pim-rp]  [ipaddress | any]/mask-length> {exact}
[multicast-group | multicast-source | pim-rp]  [ipaddress | any]  mask  mask  {exact}

An example of an MSDP policy file follows:

entry allow_internal_rp {
if match any {
multicast-group  234.67.89.0/24;
multicast-source  23.123.45.0/24;
pim-rp  10.203.134.5/32;
} then {
permit;
}
}
entry deny_local_group239 {
if match any {
multicast-group 239.0.0.0/8;
multicast-source  23.123.45.0/24;
} then {
deny;
}
}
entry allow_external_rp_172 {
if {
multicast-group 234.172.0.0/16;
} then {
permit
}
}
# deny remaining entries

Example

The following command enables the advertisement of local sources:

nable msdp export local-sa

History

This command was first available in ExtremeXOS 12.0.

Platform Availability

This command is available on platforms that support the appropriate license. For complete information about software licensing, including how to obtain and upgrade your license and which licenses support the MSDP feature, see the Switch Engine 32.2 Feature License Requirements document.

9037559-00 Rev AA