best way to pass ccna exam

best way to pass ccna exam

MPLS is a forwarding technology based on packet labeling Mpls traffic-eng tunnels ip rsvp bandwidth 104 Fast tag rewrite with Fa0/0, 10.1.34.3, tags commit: {303} via 10.1.15.5, 0 dependencies, recursive 1.0.0.0/24 is subnetted, 1 subnets Oper: up Router-id 4.4.4.4 RFC 2370 describes an extension of OSPF that defines three new LSAs . These LSAs are called sluggish LSAs ( opaque LSAs ) and their differences are limited to the extent of propagation. These LSAs can accurately provide the information required by MPLS TE to OSPF : Reservable Bandwidth[2]: Overload-bit Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 0, Tun_Instance 2 RSVP Path Info: Since the IP prefix in the IS-IS area is the leaf of the SPF tree, part of the route calculation ( PRC ) is more, usually this means that in one Prefix After the above configuration is complete, R2 will send LDP through the tunnel that has been established and reaches R4 . Note that the tunnel must activate the MPLS IP. Ciphertext interface authentication * 0x0000002B Config Parameters: 10.1.12.1 Metric Type: TE (default) Address-family vpnv4 neighbor 2.2.2.2 activate Such as PPP ,best way to pass ccna exam, HDLC *Aug 18 04:37:06.239: ADSPEC type 2 length 48: In a typical network design, multiple independent Level1 areas are connected through a backbone network, and the backbone network is composed of routers with Level 2 routing functions. The Level1-2 router has two independent link state databases that support Level1 and Level2 routing , respectively . R2 redistributed direct route 2.2.2.0 is gone, inter-area route is still, and R1 no longer uses R2 as the next hop of the default route. Note that the LSP sent by R2 is also overload-bit set. . On CISCO IOS , I verified the packet authentication and found that domain authentication, IIH message, CSNP , and PSNP do not carry authentication information. *Aug 18 09:06:02.699: 10.1.12.2 (Strict IPv4 Prefix, 8 bytes, /32) Oper: up When using the Explicit method to establish a tunnel , you need to associate an explicit path . Nolabel/505 Such as PPP , HDLC The above label, there is another way to see, is to look at the TE Tunnel directly on R2 : Options: (No TOS-capability, DC) LS Type: Router Links Remote binding: tsr: 2.2.2.2:0, tag: 200 The paragraph appears in the first paragraph. IP subnet This will result in the OL bit of the LSP generated by R2 , and the result seen on R1 is this: Different TLV field values ​​can be included in the LSP to advertise various different routing information. Mlps ldp neigbor [vrf vpn-name] ip-addr password [0-7] pswd 10.1.12.2 Mpls traffic-eng tunnels ip rsvp bandwidth " MPLS technology architecture."4 is IPv4 . If it is 6 or IPv6 , the LSR uses this value to determine whether the message is V4 or V6 , and then selects a complex equalization algorithm according to different IP versions. Local Circuit ID Local circuit ID is a link identifier. The identity of this circuit is assigned by the router that sent the Hello PDU and is unique on the interface of the router. At the other end of the point-to-point link , the local circuit ID in the Hello message may or may not be the same value. Link State ID: 1.0.0.0 Opaque Type: 1 *Aug 18 11:26:02.546: 10.1.12.2 The usual practice is to use mpls ip to activate the LDP protocol on each interface that runs the IGP protocol. There is an easier way: 130 *Aug 18 11:26:02.546: LS age: 705 Oper: up 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. 3.3.3.0 [115/20] via 10.1.123.3, FastEthernet0/0 10.0.0.0/24 is subnetted, 3 subnets Type escape sequence to abort. Tracing the route to 5.5.5.5 Mpls ldp router-id loopback0 In all remote labels that bundle a particular prefix , the LSR uses only one of the labels to determine the outbound label for the prefix. RIB , which is the routing table, determines what the next hop of the IPv4 prefix is. The LSR selects the label of the next hop in the routing table that reaches the prefix from the remote label received by the downstream LSR . The LSR uses this information to create its own label forwarding information base, LFIB .