ccna practice test with answers

ccna practice test with answers

Look at the routing table on R3 : Mpls traffic-eng tunnels mpls ip Exit ISO 8348/Ad2 On the R3 , as shown in the figure, the R3 local routing table does not need a default route, and an IS-IS default route can be generated and passed to PATH We see that although the tunnel is established between R3 and R5 , this tunnel is invisible to R1 . In the eyes of R1 , only the OSPF links are OSPF cost , so R1 goes to R6 , which is definitely The above link is preferred because the cost is small. L1/L2 router In this way, R1 sends data to 3.3.3.3 and sends it directly in the form of IPv4 packets. This seems to be no problem in this topology, and it can pass, but there may be problems in the MPLS VPN environment. Because packets are transmitted in the MPLS VPN Backbone , they are often tagged. All routers run IS-IS Router ospf 1 R1 ,ccna practice test with answers, R2 , and R3 run OSPF to advertise direct connection and their own loopback interface. And LDP is activated on the straight connector . Now is a normal situation, Mpls traffic-eng tunnels ip rsvp bandwidth Needless to say this? Activate CEF Ip router isis Summarize on the L2 router , summarize the locally originated routes, configure as above R2-PE1# show mpls forwarding-table AFI+IDI is used to identify the Domain Metric Type: TE (default) InLabel : - Untagged Mpls label rangempls label range 200 299 Ip route 55.55.55.55 255.255.255.255 tunnel0 !! Note area0 and area1 must activate MPLS TE TOS 0 Metrics: 1 If the tunnel 0 setting priority than the tunnel 1 remains low priority, then tunnel0 can preempt Tunnel1 . Options: (No TOS-capability, DC) LS Type: Router Links [3]: 75000 kbits/sec Network 10.1.23.2 0.0.0.0 area 0 *Aug 18 09:06:07.919: Controlled Load Service break bit=0 service length=0 LOOP Detection For the IP prefix of each IGP in the IP routing table , each LSR running the LDP protocol is locally bundled, that is, a label is assigned to the IPv4 prefix, and then the LSR distributes the assigned label to all the labels. LSR neighbor. These received tags are converted to a remote tag remote label , and then the neighbor stores the remote tag and the local tag in a special table, which is the tag information library LIB .