System for advertising routing updates

A first provider edge router, comprising:

• a memory comprising machine readable instructions;
• and
• a processor to execute the machine readable instructions to perform operations comprising:
• accessing first and second modified versions of first and second modified versions of a proposed routing update provided by a route reflector, the route reflector to provide the first and second modified versions to the first provider edge router and to provide an unmodified version of the proposed routing update to a second provider edge router in response to determining that the proposed routing update represents an undesirable routing configuration for the first provider edge router, the proposed routing update being received at the route reflector and originated at a first customer edge router;
• forwarding the first modified version of the proposed routing update received from the route reflector to a second customer edge router, the first modified version of the proposed routing update including a first route target different from a second route target of the unmodified version of the proposed routing update;
• and
• forwarding the second modified version of the proposed routing update received from the route reflector to a third customer edge router, the second modified version of the proposed routing update including a third route target different from the second route target, the first modified version being different from the second modified version of the proposed routing update.

A tangible machine readable storage device comprising instructions which, when executed, cause a machine to perform operations comprising:

• accessing first and second modified versions of a proposed routing update provided by a route reflector, the route reflector to provide the first and second modified versions to a first provider edge router and to provide an unmodified version of the proposed routing update to a second provider edge router in response to determining that the proposed routing update represents an undesirable routing configuration for the first provider edge router, the proposed routing update being received at the route reflector and originated at a first customer edge router;
• forwarding the first modified version of the proposed routing update to a second customer edge router, the first modified version of the proposed routing update including a first route target different from a second route target of the unmodified version of the proposed routing update;
• and
• forwarding the second modified version of the proposed routing update to a third customer edge router, the second modified version of the proposed routing update including a third route target different from the second route target, the first modified version being different from the second modified version of the proposed routing update.