3com S7906E 설치 설명서

1-5

To do…

Use the command…

Remarks

Enable automatic
route
summarization

summary automatic

Configure
MBGP route
summarization

Configure manual
route
summarization

aggregate ip-address { mask |
mask-length } [ as-set | attribute-policy
route-policy-name | detail-suppressed |
origin-policy route-policy-name |
suppress-policy route-policy-name ] *

Required

No route
summarization
is configured by
default.

Choose either
as needed; if
both are
configured, the
manual route
summarization
takes effect.

Advertising a Default Route to an IPv4 MBGP Peer or Peer Group

Follow these steps to advertise a default route to an MBGP peer or peer group:

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:

filter-policy export

peer filter-policy export

peer as-path-acl export

peer ip-prefix export

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: