ccna forum

ccna forum

Set the command: 10.1.12.2 *Aug 18 09:06:02.699: ADSPEC type 2 length 48: Tunnel mpls traffic-eng path-option 10 dynamic State SNPA ( Subnetwork point of attachment ) 10.1.23.0/24 101 Mpls traffic-eng tunnels mpls label range 100 199 Verify that you receive the LDP Hello from the other party. Mpls ldp autoconfig area 0 RESV Was used to replace TLV128 . The L1 and L2 IIH PDUs on the LAN are sent to different multicast MAC addresses: L1 is 0180-C200-0014 and L2 is 0180-C200-0015 OutLabel : FastEthernet0/0, 201 Tunnel: IS-IS and OSPF Attached-bit Record Route: 10.1.23.2 10.1.34.3 10.1.45.4 10.1.45.5 A label switched path (LSP) Ip address 4.4.4.4 255.255.255.255 Object name 3 area addresses. The latest IOS version can be set to 255. If the maximum number of area addresses supported by the two routers is inconsistent, that is, the MAX.Areas field does not match, the IIH message is ignored . Router-id 4.4.4.4 How does a router know whether a message is a normal message or a label packet? MPLS packets are inserted between the Layer 2 header and the Layer 3 packet. i ia 5.5.5.0 [115/158] via 10.1.123.2, FastEthernet0/0 10.0.0.0/24 is subnetted, 4 subnets Support tag distribution in DoD ( Downstream-on-Demand ) mode Note: The tunnel 's build priority cannot be set higher than the hold priority. Router alarm tag Router(config-router)#mpls traffic-eng router-id {interface} Affinity: 0x00000000 Mpls traffic-eng tunnels mpls label range 200 299 TOS 0 Metrics: 10 Set-overload-bit suppress interlevel Then on R1 to see the tunnel , his TE metric becomes 102 . ! *Aug 18 11:31:44.598: Path Latency (microseconds):0 Above we can see the reservable bandwidth of all tunnel priorities. Now let's modify the reservable bandwidth of the tunnel with priority 6 . Provide a loop-free network *Aug 18 09:06:02.699: Minimum Path Bandwidth (bytes/sec): 1250000 !! Re-release the local direct loopback 2.2.2.0/24 to level1 (Link ID) Designated Router address: 10.1.23.2 (Link Data) Router Interface address: 10.1.23.2 Number of TOS metrics: 0 Note: a IS-IS routing domain ( routing Domain ) does not necessarily need to have two levels, if only a region of deployment, it may be all L1 or all L2 of , recommended L2 of , to obtain a good scalability. Router-id 6.6.6.6 Overview (Tunnel0) Destination: 5.5.5.5 Traffic using traffic engineering uses source-based routing instead of routing based on destination IP address Mpls traffic-eng tunnels ip rsvp bandwidth Ip unnumbered loopback 0 tunnel destination 4.4.4.4 tunnel mode mpls traffic-eng Three tables ISO10589 Type : 0x8847 (unicast) upper layer carries MPLS , find LFIB 0x00000029 Interface loopback0 RFC1195 ----------- ---------- OO Configuration command Network 10.1.45.4 0.0.0.0 area 0 mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 1.1.1.1 0 [521] RESV The POP will only pop the top label header. The packet forwarded by this action can be an IP packet or an MPLS label packet. Ip rsvp bandwidth Router isis Ip address 5.5.5.5 255.255.255.255 ES Overload Extended IP reachability reachability TLV (type 135 ) Path option 10, type dynamic (Basis for Setup, path weight 30) Configured on L1/L2 rouer, which is R2 ,ccna forum, a default route is generated and flooded to R3 , but not to R1 . Only when a neighbor solicitation label mapping message to the local strip prefix , local will announce the label mapping messages to neighbors Fa0/0 Ip address 4.4.4.4 255.255.255.255 Mpls ip interface fa1/0 Complete MPLS TE configuration on R1 . Router#show mpls traffic-eng topology router#show mpls traffic-eng tunnels An LDP router has multiple LDP neighbors, and these neighbors assign labels to routes and pass them to themselves. Therefore, the router will not BGP direct distribution label route, but for BGP routes by next hop routing label distribution after the recursion, this is very good. BGP routing entry is pretty much, by this way we MPLS , can greatly simplify the performance loss routers, BGP 's Transit AS routing black hole problem has been solved. ! ADSPEC Config Parameters: Then you need the top-level tag, which looks at the next hop. The next hop is 5.5.5.5 , so be sure to find the 5.5.5.5 tag. As we have seen from the routing table, at this point R2 goes to 5.5.5.5 and actually enters the TE tunnel , then: The tag data sent to it by R7 indicates whether the data belongs to R6 or R7 through different inbound tag values . The endpoint LSR in the LSP needs to know the bandwidth of the link and other parameters. Therefore , the routing protocol of the MPLS TE endpoint (first and last LSR ) must be a link state routing protocol. Through the link state protocol, routers in each area have a comprehensive understanding of the topology of the area. In this way, the first-end LSR knows how to schedule the use of MPLS traffic engineering-based LSPs .