3com MSR 20-20 참조 매뉴얼

no-export: Sets the no-export community attribute for matched BGP routes. 
Routes with this attribute are not advertised out the autonomous system or 
confederation, but can be advertised to other sub ASs in the confederation.

additive: Adds the specified community attributes to the original community 
attribute of a matched BGP route.

Use the apply community command to set the specified community attribute 
for BGP routes.

Use the undo apply community command to remove the apply clause.

No community attribute is set by default.

ip community-list, if-match community, route-policy.

# Create routing policy setcommunity with node 16 and matching mode as 
permit. Set the no-export community attribute for BGP routes passing 
AS-path-ACL 8.

<Sysname> system-view

[Sysname] route-policy setcommunity permit node 16

[Sysname-route-policy] if-match as-path 8

[Sysname-route-policy] apply community no-export 

apply cost [ + | - ] value

Routing policy view

+: Increases cost value.

+: Decreases cost value.

cost: Specifies a cost from 0 to 4294967295.

Use the apply cost command to set a cost for routing information.

Use the undo apply cost command to remove the clause configuration.

No cost is set for routing information by default.

if-match interface, if-match acl, if-match ip-prefix, if-match ip next-hop, 
if-match cost, if-match tag, route-policy, apply ip-address next-hop, apply 
local-preference, apply origin and apply tag.

# Create routing policy policy1 with node 10, matching mode as permit. If a route 
matches the outbound interface Serial 2/0, set the cost for the route to 120.