ccna certification answers

ccna certification answers

! So we get the following information: Interface fast 0/0 IGP Neighbor: ID 10.1.12.2 Interface The figure above shows the format of IS-IS packets. The yellow background color is the common field of IS-IS packets. Each packet then has its own additional header field,ccna certification answers, which is then the TLV . 3 Mpls traffic-eng tunnels mpls ip Untag will remove all tag headers and turn them into a pure IP message. Network 10.1.34.4 0.0.0.0 area 0 The ACL filters out LDP packets. This prevents LDP adjacency between R1 and R4 from being established. Let's observe the phenomenon. *Aug 18 09:06:07.919: Allocation pattern (the Label Allocation) : independent control mode (Independent Control) Tunnel priority Net 49.0001.0000.0000.0002.00 1.1.1.0 is directly connected, Loopback0 2.0.0.0/24 is subnetted, 1 subnets The IS-IS packets have the same common 8B above , and the additional header fields are different, and then the TLV field. At the time of packet capture , the ternary in the TLV : type, length, variable length content, type and length in the packet, the packet capture software may not be presented, but the type and length can be found from the binary code of the packet capture result. content. The R2 re-released 2.2.2.0 external route is still there; the inter-area route is gone, except for a R2 local direct connection of 24.0 ; in addition, R1 still does not use R2 as the next hop of the default route. Router(config-if)# mpls traffic-eng path-option x {dynamic | explicit name y } [ lockdown ] There is a unique NET Router(config)#interface tunnel0 Extending the Number of IS-IS LSP Fragments Beyond the 256 Limit If the payload of the MPLS is an IPv6 packet, the load balancing is performed according to the source and destination addresses in the IPv6 header. Interface Tunnel0 LDP discovery sources: For the HDLC (Advanced Data Link Control) interface, SNPA is set to " HDLC " Test the transmission process of the data stream, observe the phenomenon Domain-password To add: In the above environment, the loopback interface cost=1 , and the cost of all other physical interfaces =10 . Then if we configure: Causes of LSP generation Net 49.0001.0000.0000.0002.00 Use the detail keyword to view the details of the LFIB forwarding entry, including the Layer 2 information, and all the label content. If you don't add it, you can only see the top label. Src 2.2.2.2, Dst 5.5.5.5, Tun_Id 0, Tun_Instance 5 RSVP Path Info: Link IP Address: 10.1.23.2 Reservable Bandwidth[0]: IPv6 , then it must publish routing information with this NLPID value. Use of OSI IS-IS for Routing in TCP/IP and Dual Environments Tunnel mpls traffic-eng forwarding-adjacency *Aug 18 09:06:07.919: 10.1.12.1 (Strict IPv4 Prefix, 8 bytes, /32) 1.0.0.0 Create a TE tunnel on R1 , the source is its own loopback0 , and the destination is 4.4.4.4 of R4 . LSP *Aug 18 11:26:02.546: For the first layer LSP database, you use the first 1 layer CSNP and PSNPs , for the first 2 used in the first layer 2 layer CSNP Like all IS-IS packets, the HELLO package consists of a header and a TLV . R2#show mpls traffic-eng link-management advertisements Router-id 4.4.4.4 Tunnel mpls traffic-eng autoroute metric relative parsing if the configuration of R2 changes as follows: !! Primary tunnel Tag or VC Detailed information LSA * 0x0000002B IS-IS and OSPF Local tag 1010 0/0/0 Integrated IS-IS Is an extended form of type 2 TLV *Aug 18 11:31:44.598: Interface eth 0/2 0x00000029 Bw[5]: L1 Basic experiment 1 Default route injection MPLS TE improves the efficiency of traffic spread across the network, avoiding inadequate and overuse of links. And the link TLV is described for carrying a series of MPLS TE sub-unit of the link TLV , regarding the sub- TLV is described as follows: Config Parameters: R4#sh mpls tr tun 0x2995 Redistribute isis ip level-2 into level-1 route-map test 300 The tag value is 1 , and this tag can appear anywhere on the tag stack, except for the bottom of the stack. 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. Link connected to Broadcast network Link ID : 10.1.12.2 Tspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits RSVP Resv Info: We have to change the topology: Ip unnumbered Loopback0 tunnel mode mpls traffic-eng tunnel destination 5.5.5.5 Point3 When the router alarm tag is at the top of the stack, it warns the LSR that the message requires special attention. In this way, the message will not be transmitted through hardware, but will be transmitted through the software process. Once the start of a message is forwarded, the label 1 is first removed, the next LSR in the LFIB label stack the next tag is then performed to find the corresponding label operations ( add, remove, exchange ) , tag 1 will It is added to the top of the label stack and finally forwarded.