latest ccna exam number

latest ccna exam number

Ip router isis ! Mpls ldp autoconfig area 0 LSP Seq Num Reservable Remote binding: tsr: 2.2.2.2:0, tag: imp-null Interface fas0/0 Type 1 length 12: Removal Trigger: configuration changed Interface fast1/0 Tag or VC R2-PE1#show mpls forwarding-table detail Router ospf 1 vrf VPN-A redistribute bgp 2345 subnets network 10.1.56.5 0.0.0.0 area 0 Replaces both IP Reachability TLVs ( 128 and 130 ) . Uses wide metrics Outgoing interface Config Parameters: Exist in the message 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 . Tunnel mpls traffic-eng fast-reroute IS-IS supports ISO connectionless network environment, pay attention to the data link is 3.3.3.3 R2#show mpls traffic-eng tunnels The configuration of R3 is as follows: RFC 3358 *Aug 18 11:26:02.546: 968 R3.00-00 The existence of the established tunnel has changed. The network environment at this moment is as follows: LDP discovery sources: Router isis ! The TE LSP tunnel is initiated by the head end of the tunnel. The metric is 31. The calculation method is of course very simple, as follows: Router-id 1.1.1.1 LDP RFC 3373 EBGP adjacency is also established on the physical interface. 10.1.34.0 [115/20] via 10.1.23.3, Serial1/0 Bandwidth: 0 For this to work, adjacent LSRs must agree on which label to use for each IGP prefix., and each intermediate LSR must be able to figure out with which outgoing label the incoming label should be swapped General Parameters break bit=0 service length=8 OSPF Ip address 3.3.3.3 255.255.255.255 Device Internet segment 10.1.xy.0 / 24 , where xy is the device number, X small y large Remote binding: tsr: 2.2.2.2:0, tag: imp-null Interface Ethernet0/0 Link connected to: a Stub Network Neighbor 10.1.24.4 remote-as 45 no auto-summary Type 2 length 48: Peer LDP Ident: 2.2.2.2:0; Local LDP Ident 1.1.1.1:0 The configuration of R3 is as follows: Show and debug Fspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits In IPv4 , the empty tag is 0 , and the ipv6 is 2 . Level2 : Backbone , a collection of consecutive L2 routers (including L1/L2 router ); Backbone is made up of all L2s (including L1/L2) *Aug 18 09:06:07.919: average rate=250000 bytes/sec, burst depth=1000 bytes L1 (inside the area) and L2 (in the area) Calculated. In the figure above, the red path is calculated by CSPF . C We introduce a new TLV (type 240 ) , known as " Point-to-Point Adjacency State ", if the device does not support the new features include the receipt of TLV of IIH , will ignore this TLV , so you can ensure backwards compatible. =250000 bytes/sec ! The forwarding adjacency feature will cause the TE router to advertise the TE tunnel as a virtual path (direct link) in the IGP routing protocol area, so that all routers know the existence of the tunnel. The IGP protocol here can be OSPF or IS-IS. LSP link state data unit Let's look at the picture. If R1 to R6 want to establish a TE tunnel , which is the optimal path, and the bandwidth requirement is 30Mbps , what is the calculation process? First of all, thanks to the flooding of link state information in the zone, " OSPF or IS-IS for MPLS TE extensions ", Receives packets from other L2 routers in the area and forwards the packets to the L2 routers of other areas according to the destination address (or to the L2 router of the same area ). Receive packets from L2 routers in other areas and forward the packets according to the destination address. 10.1.12.2 10.1.12.2 Router(config-router)#mpls traffic-eng area x Look at the LDP neighbor on R2 : R1.00-00 Ip address 1.1.1.1 255.255.255.255 We see that the forwarding aspect of the data is this: 75000 Show mpls ldp bindings Error metric Understand the establishment process of LDP neighbor relationships. About Explicit Path In R2 on *Aug 18 09:06:02.699: parameter id=127, flags=0, parameter length=5 Network 10.1.23.2 0.0.0.0 area 0 My Address: 10.1.12.1 Debug information on R1 Mpls label rangempls label range 100 199 interface fa0/0 R3.00-00 Ip router isis Policy Routing Policy Route OO !! Activate mpls on the interface , actually activate ldp 1.1.1.0 is directly connected, Loopback0 2.0.0.0/24 is subnetted,latest ccna exam number, 1 subnets Frame-relay map ip 10.1.123.2 301 broadcast Look at the routing table for R1 : MPLS TE status An NSAP address with a NSEL value of 0 is used to identify the device, which is the network address of the device, NET . Therefore NET is determined by the area Id and the system ID . In general, the biggest difference between NSAP addressing style and IP addressing style is that NSAP uses only one address to identify a router , while IP is assigned an Ip address for each port . Used to confirm and request link status information 2.2.2.2/32 *Aug 18 09:06:02.699: Refresh Period (msec): 30000 (Link Data) Router Interface address: 0.0.0.13 Number of MTID metrics: 0 TOS 0 Metrics: 1 Experiment 1 !! Activate mpls on the interface , actually activate ldp The path calculation of the MPLS TE tunnel requires relevant information to be performed. Then we need to use a link state routing protocol to flood the link information to all routers running TE in the network . After collecting the information, the TE router establishes its own MPLS TE Database .