3com 8807 Guia De Referência

Use the undo peer default-route-advertise command to cancel the existing 
configuration.

By default, a peer group does not import the default route.

For this command, no default route needs to exist in the routing table. A default 
route is sent unconditionally to a peer with the next hop as itself.

# Configure a peer group named test to generate a default route.

[3Com-bgp] peer test default-route-advertise 

peer { group-name | peer-address } description description-line

undo peer { group-name | peer-address } description

BGP view

group-name: Group name.

peer-address: Address of the peer.

description-line: Description information configured, which can be letters or 
numbers with the maximum length of 79.

Use the peer description command to configure the description information of 
the peer/peer group.

Use the undo peer description command to cancel the description information 
of the peer/peer group.

By default, description information of peers/peer group is not configured.

Related command: display current-configuration, display bgp routing-table 
peer, display bgp routing-table group.

# Configure the description information of the peer whose name is group1 as 
beijing1.

[3Com-bgp] peer group1 description beijing1 

peer group-name ebgp-max-hop [ ttl ]

undo peer group-name ebgp-max-hop