ccna pdf download

ccna pdf download

Create a TE tunnel on R1 , the source is its own loopback0 , and the destination is 4.4.4.4 of R4 . LDP allows non-directly connected neighbors, so that neighbors discover that they do not need to rely on multicast HELLO packets,ccna pdf download, but instead use unicast packets. 10.1.34.3 10.1.34.4 10.0.0.0/24 is subnetted, 3 subnets 104 Bytes tag switched *Aug 18 09:06:02.699: 10.1.24.2 (Strict IPv4 Prefix, 8 bytes, /32) 13223 10.1.23.3 R1 LSPID Delay metric Status 906 4 10.1.45.5 0 msec * 0 msec Remote binding: tsr: 2.2.2.2:0, tag: 201 No output feature configured IS-IS level2 to OSPF LSP ! Tib entry: 1.1.1.1/32, rev 2 The router uses PSNP to acknowledge multiple LSPs on the point-to-point link (the next one in the middle) CSPF ( Constrained Shortest Path First ) SPF algorithm with constraints Exit Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 0, Tun_Instance 39 RSVP Path Info: LSP refresh inverval is the periodic flooding time of an LSP . The default is 15 minutes, which is 900S . The IS-IS related interface is Up or Down . The IS-IS network layer protocol ID in the ISO protocol stack is 0x83. *Mar 1 00:00:32.755: ISIS-Upd: Building L1 LSP Mpls traffic-eng tunnels mpls label range 300 399 Show clns protocol Net 49.0001.0000.0000.0003.00 Interface *Aug 18 11:31:44.598: 2 R2.00-00 R3.01-00 75000 When IS-IS is running on an NBMA network, there are some problems. Next-address 10.1.24.4 Allocation pattern (the Label Allocation) : independent control mode (Independent Control) Local tag L1/L2 router re-releases external routes into IS-IS ( to level2 ) Ip address 55.55.55.55 255.255.255.255 In operational contexts , a tunnel can be removed from one path and palced onto another. Can use the default or use this command to modify Router(config-if)# bandwidth ? i L1 2.2.2.0 [115/10] via 10.1.123.2, FastEthernet0/0 10.0.0.0/24 is subnetted, 2 subnets For certification 10.1.12.2 Configuration command ! Type 9 flooding range only on this link Generated Downstream on-demand mode : Downstream On Demand !! Don't forget the mapping of CLNS 10.1.23.3 R1#sh mpls traffic-eng topology 1.1.1.1 (1.1.1.1 is a local router ) For the LAN interface, a 1- byte circuit ID is appended to the 6- byte SysID of the specified intermediate system ( DIS ) to form a 7- word. *Aug 18 09:06:07.919: Tun Dest: 5.5.5.5 Tun ID: 0 Ext Tun ID: 1.1.1.1 Ip router isis Mpls ldp igp sync holddown msecs Addresses bound to peer LDP Ident: Average output rate based on each tunnel Tunnel mpls traffic-eng bandwidth 2000 R1.00-00 1 ! Interface fast 0/0 !!tunnel establishment and retention priority Point2 Path removal 10.1.34. 4 4.4.4.4 Ip cef Complete basic IP configuration (configuration omitted) We see the above output, R1 , R2 , R3 all generate LSP , and the asterisk entry is issued by R1 itself. In addition, there is a special Lsp-refresh-inverval to modify. On the point-to-point link, the neighbor uses PSNP to acknowledge the new LSP . When the source router receives the PSNP acknowledgement sent by the neighbor , it stops sending new LSPs to this neighbor . In the LAN , there is no clear PSNP confirmation. The lost LSP can be detected. If any of the LSP missing or expired, Router are to PSNP send a request form to request retransmission of the LSP .