Configuring outbound mbgp route filtering – H3C Technologies H3C S7500E Series Switches User Manual

Page 240

Advertising
background image

8-6

To do…

Use the command…

Remarks

Enter system view

system-view

Enter BGP view

bgp as-number

Enter IPv4 MBGP address family

view

ipv4-family multicast

Advertise a default route to an

MBGP peer or peer group

peer { group-name | ip-address }

default-route-advertise

[ route-policy route-policy-name ]

Required

Not advertised by default

With the peer default-route-advertise command executed, the router sends a default route with the

next hop being itself to the specified MBGP peer or peer group, regardless of whether the default

route is available in the routing table.

Configuring Outbound MBGP Route Filtering

If several filtering policies are configured, they are applied in the following sequence:

z

filter-policy export

z

peer filter-policy export

z

peer as-path-acl export

z

peer ip-prefix export

z

peer route-policy export

Only the routes that have passed all the configured policies can be advertised.

Follow these steps to configure BGP route distribution filtering policies:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter BGP view

bgp as-number

Enter IPv4 MBGP address family

view

ipv4-family multicast

Configure the filtering of

redistributed routes

filter-policy { acl-number |

ip-prefix ip-prefix-name } export

[ direct | isis process-id | ospf

process-id | rip process-id |

static ]

At least one of these approaches

is required. No outbound route

filtering is configured by default

Advertising