ccna vce files

ccna vce files

The metric is 31. The calculation method is of course very simple, as follows: Router ospf 1 mpls ldp sync However, in some environments, this problem with LDP sessions may never be resolved, so it may not be desirable to wait for the establishment of an IGP adjacency forever . Then you can configure the "synchronization hold time". Fa0/0 Intermediate system adjacent router We found, R2 external routing re-released locally gone; R2 from level2 injection level1 of inter-area routes are gone; while R2 can not be used as R1 next hop of the default route. There is only one R2 local direct connection 24.0 route. If the link or node fails,ccna vce files, the traffic will be rerouted due to the failure. If the rerouting takes a few seconds, the high performance of the link will cause a large amount of traffic pointing to the fault point to be discarded. For some businesses, business interruption may result. Extended intermediate system reachability TLV (type 22 ) If the bandwidth parameter is not followed by the command, the "reservable bandwidth" of the interface defaults to 75% of the physical bandwidth of the interface . Therefore, in the above figure, if R5 sends an IPv4 packet to R3 , R3 can directly identify and hash the source and destination addresses of the Ipv4 header to implement load balancing. Oper: up For IP applications , 1 byte defines AFI in the NSAP address , at least 2 bytes defines the actual area information, 6 bytes defines the system ID and Mpls traffic-eng tunnels ip rsvp bandwidth Link connected to Broadcast network Link ID : 10.1.12.2 ! That is the CEF table Switched Type 2 length 48: Selecting designated routers in the broadcast network to control the spread and reduce the system resource requirements of many-to-many neighbors in such media The TCP/IP protocol stack, similar to ES-IS , is done by ARP , ICMP , and DHCP protocols in the TCP/IP stack . We can avoid this problem by using overload-bit . The command is explained as follows (configured under the router isis process): Outgoing Next-address 10.1.24.4 MPLS LDP-IGP synchronization is enabled in the IGP process and applied to all interfaces running the IGP . Neighbor relationship establishment Version=0 length in words=10 RESV Interface Ethernet0/1 Distribution mode (the Label Distribution's) : the downstream drive mode (Downstream Unsolicited) Next-address 10.1.34.4 C 1.1.1.0 is directly connected, Loopback0 5.0.0.0/24 is subnetted, 1 subnets Tunnel mpls traffic-eng path-option 10 explicit name R1toR5 ! Integrated IS-IS ( IS-IS ) enables the IS-IS protocol to propagate routing information for protocols other than CLNP . Election order of DIS 0 kbits/sec ! The label mapping message that is advertised locally is meaningful to the global . The labels corresponding to the same FEC advertised from different interfaces are the same. We see that the forwarding aspect of the data is this: Tunnel mpls traffic-eng path-option 10 dynamic Interface fas0/0 The configuration of R2 is as follows: Based on the platform ( Per-Platform ) label space label space ID = 0 The IGP will advertise the link with normal IGP metrics. At this time, the traffic that traverses this interface is the traffic for label switching. Basically, if the LDP session is not established, OSPF will not establish adjacencies on this link, and HELLO will not be sent at all (of course, there is a basic word here, that is, there are two cases) . i* L1 R2#show mpls traffic-eng fast-reroute database !! Outbound label 201 , which is given by R2 All routers in the LAN including the DIS establish an adjacency relationship with the PSN , relying on the adjacent relationship formed by the pseudo node on the LAN . Once the DIS generates a pseudo node in the LAN , the reliability is guaranteed. It periodically sends a first one layer and two layers Hello PDU and the CSNP . The Hello PDU indicates that it is a layer of DIS . The CSNP describes the summary information of all LSPs , including LSP ID , sequence number, checksum, and remaining lifetime. It uses multicast to flood. CSNP is only used to correct any missing PDUs .