QUESTIONS FOR READERS Figure 26.7 shows some of the concepts discussed in this chapter and can be used to answer the following questions. 1. How many LSPs are used to connect the two routers at the ends of the VPLS? 2. Where does the LSP connecting the site router CE0 to CE6 begin and end? 3. Why is the confi guration on the PE router so complex? 4. What is the function of the VPLS virtual port? 5. What if a third site router using the 10.99.99.2/24 address space joined the network? Could the VPLS be extended to that site as well? If so, how? FIGURE 26.7 Topology for the VPLS confi guration. Interface LAN1 10.10.11.0/24 LAN2 10.10.12.0/24 PE1: 192.168.1.1 VPLS ge-0/0/3 10.0.17.1/24 so-0/0/2 10.0.59.2/24 so-0/0/0 VPLS ge-0/0/3 PE5: 192.168.5.1 PE5 PE1 (P9/ P7) CE0 CE6 VPLS Virtual Port MPLS LSP ge-0/0/3 ge-0/0/3 10.99.99.1/24 ge-0/0/3 10.99.99.2/24 so-0/0/0 10.0.59.1/24 so-0/0/2 10.0.17.2/24 vt-0/3/0:32770 bbbb bbbb bbbb aaaa aaaa aaaa n/a n/a 800000 800002 In Label VPLS Forwarding Table for PE5 MAC Addr Out Label vt-0/3/0:32771 vt-0/3/0:32770 679 . some of the concepts discussed in this chapter and can be used to answer the following questions. 1. How many LSPs are used to connect the two routers at the ends of the VPLS? 2. Where does the. connecting the site router CE0 to CE6 begin and end? 3. Why is the confi guration on the PE router so complex? 4. What is the function of the VPLS virtual port? 5. What if a third site router using the. the Internet at the same time. In this chapter, we’ll be using the equipment shown in Figure 27.1. We’ll confi g- ure the CE0 at the edge of the network router to do NAT for the clients on LAN1