cisco practice test free

cisco practice test free

ATT/P/OL This time, we do some tests, R1 configuration area-password and R2 are not the same configuration. In this way , although the neighbor relationship can be established for R1 and R2 , they cannot learn the route of the other party, because neither party recognizes the LSPs . Holdtime In preparation, the same label is assigned to one FEC . Traffic belonging to one FEC has the same forwarding mode,cisco practice test free, forwarding path, and forwarding treatment. For certification Interface Serial0/2 Mpls traffic-eng tunnels mpls label range 200 299 2 The configuration of R1 is as follows (the tunnel is not configured temporarily ): Prefix 3.3.3.0/24 ( NLPID 0x81 ) and IP ( 0xCC ) In fact, it is for CLNS , and it has been expanded to become an integrated IS-IS , which can support IP routing. 10.1.23.3 Modify the ldp hello message sending interval, the default 5S Mpls traffic-eng tunnels ip rsvp bandwidth Local binding: tag: imp-null 3.3.3.3 [110/65537] via 10.1.12.2, 00:00:47, FastEthernet0/0 Mpls traffic-eng tunnels ip rsvp bandwidth Bw[1]: 3 10.1.34.4 52 msec * 120 msec Router(config)#interface tunnel x OSPF version1 was released as RFC1131 in October 1989 . The 1990 Nian 12 Yue has IP routing extensions Integrated IS-IS The unit of the OSI protocol stack defining data is the protocol data unit PDU , so the OSI view data frame is the PDU of the data link layer . Path option 10, type dynamic (Basis for Setup, path weight 3) OSPF is routerID LSP ( LinkState Protocol Data Unit ) format Is-type level-1 In the forwarding process, a set of data with the same processing mode can be identified by means of address, tunnel, COS, etc., usually in one set. 75M 0x80000018 0x008F6C 0 RESV Interface Ethernet0/0 Network 1.1.1.1 0.0.0.0 area 0 2.2.2.2/32 L2 router Message format We see that there are two layers of labels here. Therefore, R2 pushes the original IP packet into a layer of VPN label 505 and pushes in two layers of labels 305 403 . It is noted here that the label 403 is the LDP label assigned by R4 with the prefix 5.5.5.5/32 , which is passed to R2 through the targeted LDP connection . And 305 is the label that R3 assigns to the TE tunnel through RSVP . Then R1 and R3 receive a label mapping with a prefix of 2.2.2.0/24 and a label of 3 . At the same time, they also received the R2 updated route. Since the loopback interface route is updated by OSPF by default, it is updated in /32 mode. Therefore , the route learned on R1 and R3 about 2.2.2.2 is /32 bit. of. Then this is a problem, my routing entry is 2.2.2.2/32 , but the label message you sent me is 2.2.2.0/24 , it doesn't match, so R1 thinks that the label is going to Not 2.2.2.2 , just give an untagged , just like the LFIB table we saw for R1 . In this way, when R1 receives the label package and goes to 2.2.2.2 ,R1 will pop up the label stack of the label package, then find its own FIB table and forward the message out. This seems to be no problem in this topology, but in many environments, there will be problems, such as MPLS VPN . So how to solve it? Very good, R2 loopback port to an ip ospf network point-2-point , or change the mask.