ccna pdf 2014

ccna pdf 2014

Adjacency *Aug 18 11:31:44.598: Advanced features Level2 area In R2 configuration backup link, R2 increase in the following configuration: Further analysis of the metric problem. We focus on 55.55.55.55 , after the basic configuration above, currently in the routing table of R2 Platform based : Per-Platform OSPF , this is not the same as other IGP protocols. Therefore, if you want to make the routing full, you need to add a re-release directly to R3 . We see a lower priority than 5 of the Tunnel , along with the available bandwidth into a 75-20 = 55M . 0 interfaces: IP external reachability information ! 203 Metric Type: TE (default) InLabel : - Network 1.1.1.1 0.0.0.0 area 0 !! 2.2.2.2 The metric of the link is unchanged IS-IS router advertisements contain direct neighbors and routing information TLVs . 1921.6800.1024. LSP Holdtime Label The configuration of RouterA is as follows: Globally activate MPLS TE tunnel and set MPLS label space Fa0/0 Mpls ldp router-id loopback0 mpls label range 300 399 interface fast0/0 Label subobject: Flags 0x1, C-Type 1, Label 0 Links that do not meet the required bandwidth are not considered. Then after filtering, the following links are left: Local tag *Aug 18 09:06:02.699: Path MTU: 1500 Ip cef Since we have configured link protection on R2 to protect the link between R2-R4 , when the E0/1 port of R2 is shut down , the path error message sent by R2 to R1 indicates that R1 does not need to be removed. Drop the tunnel . So R1 of the tunnel will not be removed. ! ! 120s Reservable Bandwidth[2]: Ip cef PATHErr is actually sent to the headend router. The main reason for sending the error message is that the link used by the TE LSP fails, or the party LSR receives the PATH message with the forged message. Used to request complete LSP information when the database is synchronized on the broadcast link. RFC 3358 The forwarded keyword indicates that this command is valid for traffic traversing the router. The Local keyword indicates that the traffic generated locally is effective. It can prevent the structure of the core transmission network from being exposed due to TTL=0 return error message BGP route delivery in MPLS environment MPLS TE packet forwarding is based on labels. Packets are forwarded along the pre-established LSP . Then , after the tunnel is established, how to import traffic into the MPLS TE Tunnel ? The traffic will only enter the LSP if it is on the tunnel . There are three ways: In a CISCO IOS router without IPv6 capability, the general rules for load balancing packetized packets are as follows: IP subnet General Parameters break bit=0 service length=8 Reservable Bandwidth[5]: 0/0/0 The OSPF adjacency cannot be established, but R1 has only one available path to reach R2 , so OSPF adjacency is established unconditionally. At the same time, R1 and R2 will directly announce the 10.1.12.0/24 direct link, which will be advertised with the largest metric 65535 . The purpose of this is that if the network environment is a redundant link environment, then the metric of the link can be made the worst from the perspective of the IGP ,ccna pdf 2014, so that the LDP path bypasses the link.