9tut ccna dumps 2015 pdf

9tut ccna dumps 2015 pdf

The LDP ID is a 6B field and is the LDP identifier of the LSR . Contains the LSR identifier of 4B and the label space of 2B . Mpls traffic-eng tunnels mpls label range 400 499 10.1.12.2 [MPLS: Label 201 Exp 0] 132 msec 184 msec 88 msec IP Address: Metric: 10 *Aug 18 09:06:07.919: Network 5.5.5.5 0.0.0.0 area 1 Device Internet segment 10.1.xy.0 / 24 , where xy is the device number, X small y large 10.1.56.5 [MPLS: Label 505 Exp 0] 4 msec 0 msec 0 msec Pay attention to the distinction between autoroute and here . The autoroute feature is not activated in our configuration above . Autoroute feature and autoroute Local binding: tag: imp-null IP internal reachability information R1#traceroute 6.6.6.6 Ip router isis 539 *Aug 18 04:37:06.239: !! Label protocol uses LDP (default is LDP ) TE with Layer 2 overlay Tun Sender: 1.1.1.1, LSP ID: 521 55.55.55.55 and 5.5.5.5 will no longer take the tunnel . No frame-relay inverse-arp Net 49.0001.0000.0000.0002.00 Mpls traffic-eng tunnels mpls label range 200 299 LDP neighbor discovery Fa0/0 Error metric optional, link error probability, not supported Router ospf 1 Interface R4#sh isis da 2 The configuration of R1 is as follows: Options: (No TOS-capability, DC) LS Type: Router Links PSNP (partial serial number PDU ) i ia 10.1.24.0 [115/148] via 10.1.123.2, FastEthernet0/0 i ia 10.1.45.0 [115/158] via 10.1.123.2, FastEthernet0/0 i ia 10.1.34.0 [115/158] via 10.1.123.2 , FastEthernet0/0 C 10.1.123.0 is directly connected, FastEthernet0/0 In the LAN , SNPA refers to the MAC address. The sub-TLV of 0-244B is mainly used for MPLS TE. !! Don't forget the mapping of CLNS *Aug 18 09:06:07.919: *Aug 18 11:31:44.598: Se1/0 75000 The LSP : R3.02-00 , here marked as non-dummy node 0 , then R3 is a the DIS , and that the LSP , is a dummy node the LSP . Tunnel mpls traffic-eng path-option 10 dynamic R1#sh mpls for BW (kbps) Circuit circuit In order for the protection feature to work properly, you need to enable this feature on both LSRs . If one end does not support this feature, you can configure the feature in one segment and the mpls ldp discovery targeted-hello accept command on the other end to receive target-hello . TE can provide a solution to avoid link overload by controlling traffic or partial traffic. Let's make a comparison: In this environment, all physical interfaces OSPF cost = 10 , Loopback port cost = 1 LSP Holdtime The command to define an Explicit path is as follows: 3.3.3.3/32 LSP flooding diffusion and synchronization 10.1.12.2 Label Tunnel mpls traffic-eng autoroute announce The router generates a label locally for each IGP prefix and distributes it to the LDP neighbor. It also receives labels for the specific prefix from other LDP neighbors. The router stores the local label and the remote label (which the LDP neighbor sent to me) in the LIB . 300 Perform routing protocol functions in the routing domain O 0x2D6E ! Retention mode : Label Retention Reservable Bandwidth[7]: Let the ES know where it is, the area prefix IS-IS routers belong to only one specific area Fspec: ave rate=2000 kbits, burst=1000 bytes, peak rate=2000 kbits History: *Aug 18 04:37:06.239: version:1 flags:0000 cksum:DEB3 ttl:255 reserved:0 length:132 Explicit Route: 10.1.23.3 10.1.34.3 10.1.34.4 10.1.45.4 Comment Fa0/0 Router router 4.4.4.4/32 Network 10.1.34.4 0.0.0.0 area 0 CSPF calculates the path Bytes tag switched Peer-to-peer network Will affect the VPN traffic. *Aug 18 11:31:44.598: 10.1.23.2 0 kbits/sec Data plane : Data forwarding based on tags Length of Value ISO 9542 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 . Priority 1 : 9375000 Router , thus maintaining two independent L1 link state databases and L2 link state databases. Then, if there is a router in the backbone that is not connected to the L1 router , it can be configured as an L2 router . The link state database of TEDB and IGP is independent. ! If the headend wants to remove the tunnel , send PATHtear along the tunnel path , and the received node responds to RESVtear , so the tunnel between the two points Periodic reoptimize 0x2995 *Aug 18 09:06:07.919: min unit=0 bytes, max pkt size=2147483647 bytes R2(config-if)#mpls traffic-eng administrative-weight 100 Network 10.1.45.5 0.0.0.0 area 1 10.1.23.0 [110/65536] via 10.1.12.2, 00:00:48, FastEthernet0/0 When using the Explicit method to establish a tunnel ,9tut ccna dumps 2015 pdf, you need to associate an explicit path . Mpls traffic-eng tunnels ip rsvp bandwidth Route Distinguisher: 2345:6 *Aug 18 09:06:02.699: 10.1.45.5 (Strict IPv4 Prefix, 8 bytes, /32) i L1 IS-IS interface. If the interface is attached to a multiaccess network, the circuit ID is concatenated with the system ID of the DIS ” 10.0.0.0/24 is subnetted, 4 subnets Regular area (non-backbone area) 10.1.123.3 RFC1195 IS Router ospf 1 For TE of OSPF extension ! Attached-bit The LSA is encapsulated into the LSU to advertise to the neighbor Router(config-if)# mpls traffic-eng attribute-flags ? 0x8000001A 0x002ED2 0 Run the interface configuration command: isis metric value level-1 | level-2 to configure the metric on the same interface. RSVP uses PATH and RESV messages to pass signaling in one path. The TE head end router sends a PATH message to the tail router. Fast tag rewrite with Fa0/0, 10.1.12.2, tags commit: {203} via 10.1.12.2, FastEthernet0/0, 0 dependencies 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 . Tunnel mpls traffic-eng path-option 10 explicit name R2R4R5 The configuration of R4 is as follows: Fa0/0 IGP Neighbor: ID 10.1.12.2 Mpls traffic-eng tunnels ip rsvp bandwidth *Aug 18 09:06:07.919: Tun Dest: 5.5.5.5 Tun ID: 0 Ext Tun ID: 1.1.1.1 TE metric: 1, IGP metric: 1, attribute_flags: 0x0 Start LSP ID : Start LSP ID . Indicates the first LSP ID of the LSP range described in the TLV field . Label 14 OAM alarm tag Interface eth0/1 Tunnel mpls traffic-eng autoroute announce Mpls ldp igp sync holddown msecs PSNP Mpls traffic-eng tunnels ip rsvp bandwidth By default, CISCO IOS does not trigger re-optimization when a link in the network can be reused by a TE tunnel , but can activate this operation. To enable re-optimization when a link becomes operational in MPLS TE , use the following command: Router(config-if)# mpls traffic-eng path-option x {dynamic | explicit name y } [ lockdown ] 880 Interface The ACL filters out LDP packets. This prevents LDP adjacency between R1 and R4 from being established. Let's observe the phenomenon. Path: valid Intermediate System Intermediate System The trick of traditional IP routing: *Aug 18 04:37:06.243: SESSION type 7 length 16: Mpls traffic-eng tunnels mpls label range 100 199 (Tunnel0) Destination: 5.5.5.5 All Layer 1 routers must have a unique system ID in the zone Interzones can only be interconnected via L2 or L1/L2 routers Unreserved bandwidth (non-reserved bandwidth) parameters 32 th 8bits , other bandwidth parameter only . 4 th 8bits , as the reserved bandwidth is actually not . 8 priority levels have each priority level . 4 bytes. The priority range is 0-7 . Mpls traffic-eng tunnels ip rsvp bandwidth Such as OSPF such IGP protocol, configured or interface bandwidth cost calculated the optimal route Ip router isis Interface Ethernet0/0 Next-address 10.1.23.3 R1#show ip cef 4.4.4.4 The configuration of R1 is as follows: Show and debug There are two types of tunnel priorities: R2#sh run | Retention mode : Label Retention Tunnel mpls traffic-eng path-option 10 dynamic Show mpls traffic-eng link-management advertisement Reservable Bandwidth[2]: R2#show ip ospf database router self-originate The term circuit ( Circuit ) corresponding to the interface . Because the NET address is used to identify the entire device, the Circuit ID is used to indicate a different interface. The router assigns a 1- byte Circuit ID to the interface as follows . Keep priority *Aug 18 09:06:07.919: 10.1.45.4 (Strict IPv4 Prefix, 8 bytes, /32) Mpls traffic-eng tunnels mpls label range 300 399 My Address: 10.1.12.1 LS age: 43 Domain-password cisco Interface loopback1 Physical Bandwidth: 100000 kbits/sec Res. Global BW: 75000 kbits/sec Res. Sub BW: 0 kbits/sec Downstream:: IS-IS adjacency on a multi-access link ADV Router *Aug 18 09:06:02.699: Token bucket fragment (service_id=1, length=6 words Network 10.1.23.3 0.0.0.0 area 0 RouterID , or the IP address of the interface . Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 0, Tun_Instance 39 RSVP Path Info: Provide network scalability ! *Aug 18 11:31:44.598: In the dynamic setup, let the tunnel head end router calculate the path that the TE tunnel can traverse the network to the tail end in an optimal manner. We only need to configure the destination of the tunnel , and then the first-end router uses the CSPF algorithm to calculate the path itself. IS R1.00 ! 4 Maximum reservable bandwidth information: An IS-IS router can be configured to summarize IP routes into Level 1, Level 2, or both, at the same time, Router(config-if)#ip rsvp bandwidth [total-flow-kbps] [single-flow-kbps] *Aug 18 09:06:02.699: Layer 3 protocol ID: 2048 19 L2 router has a Level 2 link state database, which contains routing information between all areas. 1.1.1.0 [115/20] via 10.1.12.1, FastEthernet0/0 For the setting of SystemID , it is customary to encode the interface MAC or IP address of the router into a system ID or a part of it. Loopback IP is commonly used for this purpose in integrated IS-IS . For example, I have configured a loopback : 192.168.1.24/32 , and then I will complete this IP , not enough 3 digits to add 0 in front , forming 192.168. 001.