DLSw+ Design Topologies 527
Figure 14-14
Replication
Figure 14-15 shows 250 peers in each group, which means there would be 249 broadcasts
within the group and three broadcasts to border peer routers, totaling 252 broadcasts.
So the thought here is that designers should divide groups, ensuring that border peers can
support the amount of broadcast replication that any single router can perform. Typically,
border peer routers should be a higher-end class Cisco router in the 72007500 range.
Depending on the network's size, a 3600 might be appropriate as well.
Router Greg
Router Jeff
Router Laurie
1. Can you reach Mike?
Border peer Doug
2. Can you reach Mike?
3. Can you reach Mike?
Router Holly
Router Melissa
Router Penny
5. Can you reach Mike?
Border peer Doug
6. Can you reach Mike?
7. Can you reach Mike?
4. Can you reach Mike?
Mike
87200333.book Page 527 Wednesday, August 22, 2001 1:41 PM