ccna practise

ccna practise

Device Internet segment 10.1.xy.0 / 24 , where xy is the device number, X small y large !! Use strict next hop directly in this area Ip unnumbered Loopback0 tunnel mode mpls traffic-eng tunnel destination 5.5.5.5 Meet the FIB , LIB , and LFIB tables Pop tag 55000 Sub Pool In the default implementation mode, the IIH packet is filled to the outbound interface MTU size (using the method of adding padding , as shown above). The router compares the local interface MTU with the received IIH size to ensure that it can be processed before forming the adjacency. The largest possible packet of neighbors. i ia 10.1.24.0 [115/148] via 10.1.123.2, FastEthernet0/0 Removal Trigger: configuration changed Modify ldp holdtime , default 15S Interface eth 0/0 *Aug 18 09:06:07.919: Tun Sender: 1.1.1.1 LSP ID: 247 In the cfg-ip-expl-path mode, you can also use the list keyword to view all the next-addresses that have been entered . Use index x next-address to specify the index number of each next- hop IP that has been entered . Net 49.0001.0000.0000.0002.00 Fa1/0 R1.00-00 Reservable Bandwidth[0]: Ip router isis Network 10.1.34.3 0.0.0.0 area 1 (support) does not announce the direct connection between R1-R5 and R4-R6 into OSPF PATH Explicit Route: 10.1.23.3 10.1.34.3 10.1.34.4 4.4.4.4 i*L1 0.0.0.0/0 [115/10] via 10.1.123.3, FastEthernet0/0 Overload-bit Once the router receives the IIH , it checks the adjacency of the sender of the hello packet. If the adjacency has been established, the adjacency is reset. Experimental phenomena Mpls traffic-eng tunnels ip rsvp bandwidth !! Activate mpls on the interface , actually activate ldp Ip vrf forwarding VPN-A *Aug 18 04:37:06.239: min unit=0 bytes, max pkt size=2147483647 bytes Mpls traffic-eng tunnels mpls label range 500 599 The CLNS address is required even if it only provides routing for IP . Show mpls traffic-eng link-management advertisement SysID lab environment 0x0000000C Fa0/0 105 Mpls traffic-eng tunnels ip rsvp bandwidth Peak rate Here there is a potential problem, because Level1 Router , do not know level2 routing (outside the region) information, instead of looking for the nearest L1 / L2 router to your destination,ccna practise, then it may appear sub-optimal path In order to solve this problem, IS-IS introduced a mechanism called route leakage. 2.2.2.2 0 [5] RSVP and label Mpls ldp neighbor 1.1.1.1 targeted ldp Router ospf 1 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 . Distribution mode : Label Distribution L1\L2 router will inject this external route in Level1 area and Bacbbone. Bw[4]: ! Outgoing tag or VC Mpls ldp igp sync holddown 5000 0/0/0 Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 R3#show ip ospf database router 2.2.2.2 Experiment 1 NNHop ( Next-Next Hop Router ): Next hop router, next hop of the PLR next hop router R1 advertisement Loopback route .1.1.1.1 / 32 Ip rsvp bandwidth !! Specify the range of local tags, this can be a great convenience in the experiment Certification Information 2.2.2.2/32 Ip unnumbered Loopback0 tunnel mode mpls traffic-eng tunnel destination 5.5.5.5 Outgoing Mpls traffic-eng tunnels ip rsvp bandwidth *Aug 18 09:06:07.919: TIME_VALUES type 1 length 8 : Link connected to: a Transit Network Clear domain authentication *Aug 18 09:06:07.919: Flags: (0x7) Local Prot desired, Label Recording, SE Style Explicit Route: 10.1.12.2 10.1.23.2 10.1.23.3 10.1.34.4* 199 , R2 is 200 299 , and so on. Link connected to Broadcast network Link ID : 10.1.12.2 R1#sh ip rsvp interface IS-IS routing hierarchy Manual re-optimization UP 28 FILTER_SPEC Next Hop Assume that this is an internal network of the operator, R4 is the national trunk, R2 and R3 are left to the provincial, and the provincial internal ran IS-IS to carry the routing prefix information in the Core , and as the provincial dry exit R2 , R3 The route prefix or default route of a specific national trunk is issued. We take the default route example here. Both R2 and R3 maintain the EBGP neighbor relationship with R4 . In this case, R2 is required to be upgraded and then restarted. After the restart, IS-IS converges faster than BGP . After the first convergence, R2 to the IS-IS area. Internal flooding LSP , R1 will use R2 as the next hop of some route prefix, or the next hop of the default route. However, at this time , BGP of R2 does not converge, so that R2 is reached.The data may be discarded and black holes appear.