how to pass ccna test

how to pass ccna test

The output of the CSPF algorithm is an IP interface address sequence (next hop router address) between the two endpoints of the tunnel . Interface loopback0 Label space (the Label Space) : based platform (Per-Platform) Lists the Layer 3 protocol supported by the integrated IS-IS protocol. Currently only CLNP Traceroute 1.1.1.1 source 10.1.35.5 R3 found that the inbound tag 300 's tag package, the outbound tag is a POP , so he pops the top tag (actually a layer), and then directly throws the popped data to 10.1.34.4 , note that this time it does not need Find the FIB table again because there is already a next hop in the LFIB table. Eventually this data was passed to R4 . Network 10.1.12.2 0.0.0.0 area 0 Type 10 flooding range only in this area In this way, R2 will ignore the LDP hello packet received from the R1 on the interface , and then the LDP adjacency between R1-R2 will DOWN after a while. Tunnel priority Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface Partition repair IS-IS packets can carry multiple TLVs with only one header, saving bandwidth Protocols support R3#show ip cef exact-route 10.1.35.55 1.1.1.1 17 Network 10.1.34.4 0.0.0.0 area 0 Mpls traffic-eng router-id Loopback0 mpls traffic-eng area 0 TE metric: 1 Mpls ip interface fast1/0 Host host 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 . Record Route: 10.1.34.3 10.1.13.1 The unreservable bandwidth is the bandwidth remaining after being supplied to the TE , that is, the maximum bandwidth of the link minus the bandwidth currently reserved by the TE tunnel. ! Redistribute connected level-1 !! Redistribute the local direct loopback 2.2.2.0/24 to level1 redistribute isis ip level-2 into level-1 route-map test 2.2.2.2/32 R1 LDP discovery sources: Reference book Configure MPLS TE tunnel on R1 . Interface eth 0/1 Label Kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF *Aug 18 09:06:07.919: IS Hops:0 Tunnel mode mpls traffic-eng tunnel destination 4.4.4.4 0x4F65 DIS LDP autoconfig Ip address 10.1.255.1 255.255.255.255 L1 Mpls traffic-eng tunnels ip rsvp bandwidth Link connected to: a Stub Network *Aug 18 04:37:06.239: peak rate =250000 bytes/sec Comparison of terms between IS-IS and OSPF : The mere motivation to set up overload due to insufficient device resources is now running out. After all, the performance of the device is getting better and better. Router ospf 1 i L2 Router(config)#interface tunnel0 ! 1.0.0.1 Label Space ID is generally 0 , indicating that our label is a platform - based ( Per-platform ) label space. 1.1.1.1/32 IS-IS Level-1 LSP R1.00-00 Ip explicit R1toR5 MAC/Encaps=14/18,how to pass ccna test, MRU=1500, Label Stack{204} CA014FEC0008CA004FEC00088847 000CC000 Bandwidth: 20000 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF *Aug 18 09:06:07.919: SENDER_TSPEC type 2 length 36: Reservable OSPF version1 was released as RFC1131 in October 1989 . The 1990 Nian 12 Yue has IP routing extensions Integrated IS-IS Bandwidth: 33000 In this environment, since the tail end of the tunnel is at R4 , the label that R4 assigns to this tunnel through RSVP is POP . !! This is the mapping of IP According to the protection object can be divided into: Neighbor 5.5.5.5 send-community extended exit-address-family 4 Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 It is only possible to establish adjacencies with neighboring routers at the same level. S1 / 0 port hung up, then R2 will no Level2 abutting relationship, that is, R2 and backbone or level2 area disconnected, [Note] If the router receives a tagged packet and the top tag cannot be found in the local LFIB , the CISCO IOS will discard it. For certification *Aug 18 09:06:02.699: SESSION type 7 length 16: MPLS TE status Static route Locally assigned labels are distributed to neighbors, and if there are multiple connections to a single neighbor, the label is valid on all connections. Then regardless of local For IP applications , 1 byte defines AFI in the NSAP address , at least 2 bytes defines the actual area information, 6 bytes defines the system ID and OSI network layer addressing is achieved by using two types of hierarchical addresses: NSAP and NET . We open interface authentication between R1 and R2 : Then show it: Record Route: NONE MPLS TE path optimization L2 router Mpls ldp router-id loopback0 mpls label range 100 199 interface fast0/0 * Aug 18 04: 37: 06.239 : Outgoing PathTear: !! dismantle tunnel The LSP overload-bit generated by this router is set. This will cause the router to not be used by other routers as the next hop to any destination, except for its locally connected network segment. This is generally used when the router is a leaf node, that is, the end of the network, directly connected to the user. L1/L2 router , which holds two independent LSPDs . The Layer 1 and Layer 2 routing processes are running at the same time . At a layer LSDB maintains the first in a layer LSP information simultaneously to other L1 router advertisement which is an outlet of the region (the L1 router to form a default route one point to the area border routers according to this announcement); it support of two layers function in the trunk with the other router communication, independent of the first and maintains a layer LSDB of 2 layer topology database.