cisco ccna exam blueprint

cisco ccna exam blueprint

Tib entry: 10.1.23.0/24, rev 8 Initialization message 16 Last update from 10.1.123.2 on FastEthernet0/0, 00:01:32 ago Routing Descriptor Blocks: RFC 3719 ! ! 120s 75000 Basic experiment R2 (config)#router isis Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 The label mapping message advertised locally is meaningful to the local . The label corresponding to the same FEC advertised from different interfaces is different. Interface Loopback0 Circuit type : 01 means L1 router, 10 means L2 router, 11 means L1/2 router Router-id 4.4.4.4 Local The CEF entry indicates that to go to 4.4.4.4 , the IP packet needs to be stamped with a value of 203 , and then the packet is dropped to the next hop 10.1.12.2 and thrown out from the Fa0/0 port. Ip router isis router isis In preparation, the same label is assigned to one FEC . Traffic belonging to one FEC has the same forwarding mode, forwarding path, and forwarding treatment. IS-IS Transient Blackhole Avoidance IS-IS interface. If the interface is attached to a multiaccess network, the circuit ID is concatenated with the system ID of the DIS ” The Level1 area is a collection of L1 routers and L1/L2routers , and Level2area is a collection of L2 routers and L1/L2 routers . FRR intf/label Link connected to Broadcast network Link ID : 10.1.12.2 TE with Layer 2 overlay *Aug 18 09:06:07.919: EXPLICIT_ROUTE type 1 length 68: In-label Out intf/label DBD Tunnel mpls traffic-eng path-option 10 dynamic Network 5.5.5.5 0.0.0.0 area 0 3 10.1.23.2 [MPLS: Label 203 Exp 0] 964 msec 1124 msec 1008 msec Interface eth 0/0 Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 The tunnel 's build priority cannot be set higher than the hold priority. R1#show ip route 5.5.5.0 Or Tunnel Id Frame-relay map ip 10.1.123.2 102 broadcast ! For the HDLC (Advanced Data Link Control) interface, SNPA is set to " HDLC " Explicit Route: 10.1.45.5 5.5.5.5 AutoRoute: enabled auto-bw: disabled The configuration of R4 is as follows: Interface IP Address: 10.1.12.1 Physical BW: 100000 kbits/sec 0 kbits/sec Area address The configuration of R4 is as follows: So in fact, the default here is still load balancing based on the source address pair. From the test results, 10.1.35.55 access 1.1.1.1 Interface Tunnel0 0xA538 In the TE tunnel, a signaling protocol is needed to ensure that the link of the LSR interface traversed by the TE tunnel can be used and can be hop-by-hop. Net 49.0001.0000.0000.0002.00 Bytes tag switched Sender_Template Type escape sequence to abort. Tracing the route to 4.4.4.4 Take a look at the routing table for R1 : Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 10.1.12.2 Since the IP packet destined for 6.6.6.6 is sent to R2 , the IP packet is pushed into the VPN label 505 under the inner layer , which is no problem. Then we continue, the VPNv4 route on 6.6.6.6 on R2 is passed by 5.5.5.5, which is R5 . *Aug 18 09:06:07.919: Minimum Path Bandwidth (bytes/sec): 2147483647 Path Latency (microseconds): 0 Traffic Engineering RouterID TLV (Type 134 ) is mainly used for TE Next-address 10.1.23.3 To add: In the above environment,cisco ccna exam blueprint, the loopback interface cost=1 , and the cost of all other physical interfaces =10 . Then if we configure: !! Change to 33M 1.1.1.1/32 Type : 0x8847 (unicast) upper layer carries MPLS , find LFIB C 1.1.1.0 is directly connected, Loopback0 10.0.0.0/24 is subnetted, 2 subnets ISO 10589 Such as in a frame relay environment Fast Reroute ( FRR ) is a link or node protection mechanism. Allows the headend router to rerouting when there is a problem with the link or node , and uses a temporary, pre-established path to bypass the point of failure. Remote binding: tsr: 2.2.2.2:0, tag: imp-null Create a TE tunnel on R1 , the source is its own loopback0 , and the destination is 4.4.4.4 of R4 . Reservable Bandwidth[5]: Virtual link This relative command can be configured with a value of -10 to 10 . This means adding or subtracting this specific value based on the IGP metric. For example figure above, without considering the tunnel in the case of, R2 on about 5.5.5.5 and 55.55.55.55 Routing Metric = 31 is . This value has been said above. Now we configure this with relative -1 after the command keywords, relying on autoroute calculated, point tunnel0 mouth of OSPF routing, Metric becomes 31-1 = 30 .