ccnp route exam update

ccnp route exam update

Router bgp 64512 no synchronization no auto-summary STP (PVST) Dhcp snooping binding database . as follows: The bandwidth of F0/0 port is 100M , and the bandwidth of S0/0 port is 1.544M . Except for the next time, it is just 1:60. On R10 , the route is redistributed into OSPF . R11 learns 8.8.8.0 through OSPF . On R11 , the route is: Dual two-way point of the route re-release Activate Port-Security on the interface 0.0.0.0 . R1 , R2 , and R3 run RIP , and 1.1.1.0/24 on R1 is not directly announced. On R2 : Bgp confederation identifier 345 neighbor 4.4.4.4 remote-as 64512 RIP also supports tags , but it must be version 2 . Enhanced Interior Gateway Routing Protocol (EIGRP) Open Shortest Path First (OSPF) Access-list 1 permit 1.1.1.0 SW1(config-if)# glbp 1 10.1.1.254 RFC1724 8 Option packet structure: Once the bridge is aware of a topology change in the network, it will send a configuration BPDU with the TC set , and each switch in the network will pass these set BPDUs , which will make each individual bridge aware. To the case of topology changes. Half-life: 15 minutes R1(config-router)# redistribute connected subnets If the routes are from EBGP neighbors, it is preferred that the oldest EBGP neighbor came routing, reduce the impact of the roll (this provision mainly EBGP Extended ACL Weight Match a , a1 , 62 , 1b , xv2, etc. R4 to R3 configured as Client , then it will be able to break through the limitation of split level, will learn from R3 route reflector to R5 , will learn from R5 route reflection of self- R3 . Let's look at R5 of the BGP table: Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale About route reflection clusters // IBGP neighbors, using loopback0 to build neighbors Match interface matches the route with the next outgoing interface as one of the specified interfaces. 200 i 172.16.10.1 , in fact, this IP may be understood as 172.16.0.0/16 within the network, but also in 172.16.10.0/24 within the network, of course, here we can see it, then who is more accurate? It is clear that 172.16.10.0/24 is more accurate, we say that its matching length is longer than 172.16.0.0 . Then first mark the route prefix of 30.30.30.0/24 on R2 , use the community tag, and configure a route-map at the same time. About the burst-size parameter: Wherein SW1 is as follows: Establish BGP neighbor relations 4 Option packet structure: The comparison principle of OE2 is first compared to the external metric of OE2 . If they are equal, further comparison of the internal metric is the metric to the ASBR . Run the switchport port-security mac-address command to configure a static security address entry. Configuring DAI logging Router ospf 1 By default, only one BGP process can be started on a single router and can belong to only one AS . DUAL AS allows us to run a secondary AS under the primary AS without terminal BGP connections , thus providing a mechanism for network migration. Of course, you can also associate the route-map after re-issuing the command and set the tag in the route-map . MAC address is 0007.b400.0102 (learnt) Owner ID is cc01.043c.0000 Finally, look at DP , which is also relatively simple as shown. We take SW3 and SW4 between the segment , for example, due SW3 and SW4 will have BPDU , and SW3 issued SW4 of BPDU obviously superior to SW4 this interface to send generated from its own BPDU , so the final SW4 interfaces win. OUT direction Experimental verification The range is 1-255 For example,ccnp route exam update, in R3 viewed on R5 sent me 6.6.6.0 of this OSPF external routes, you can see the tag field is 600 (automatically inherit the AS_PATH ) And this time, R3 the OSPF redistributed into BGP , the default is not automatically restored AS_PATH attribute, so you need: At this point , the route 1.1.1.0 is seen on R3 , which contains the next hop attribute, and the previous one. 100 i What is the routing table for R3 ? In fact, without any impact, R3 can learn the routing of the entire network. As for why, I believe that it has been explained very clearly. Fa0/20 ...... 192.168.8.0/24 Route-map Then in the BGP process, network 0.0.0.0 can inject this default route into the BGP process . The default route introduced in BGP by this method will be delivered to all BGP neighbors. 10.1.20.0/24 This route is updated by R1 with " 10.1.20.0 ". This is because the subnet mask is consistent with the update interface mask /24 . The v1 update package does not contain a mask. The updated subnet only. number. Associate route-map when route is re-published Show run | in route CASE3 : May be provided for routing cost , cost-ID is equal to the time, preferably cost small. If the cost is equal, select the cost-ID is small. Message interaction process Configuration example 46 length Toxicity reversal The secondary VLAN is mapped to the SVI interface of the primary VLAN , allowing for Layer 3 switching of pVLAN ingress traffic. Each cluster has a unique cluster ID Weight There are already many arp firewalls on the market that can be recognized. Of course, there are some simple methods, such as arp-a to see if the MAC is correct. Or catch a bag and so on. Le-value ] Redistribute connected subnets redistribute rip metric 10 subnets network 192.168.23.0 0.0.0.255 area 0 Both R1 and R2 inject 100.0.1.0 and 100.0.2.0 into BGP using network . Transition from the old routing protocol to the new routing protocol Data forwarding mode 13 The solution is as follows: 1. On the R3 , declare the directly connected network segment of 10.1.13.0 into OSPF , and R5 is the same; 2. Modify it on R3 . 1 Router(config-router)# passive-interface int- type int-num Recognized as a self-determination attribute. LP is a local priority, only AS inside, in IBGP between peer transfer, and will not be passed to other EBGP neighbors End deny any MED : 200 At this time, if another PC accesses the port, the port-security interface will receive a new data frame of the MAC address in the non-secure address entry , and the triggered violation action is given to the interface. Will be err-disable off. At the same time, a snmp trap message is generated . In addition, under the interface, the Security Violation Count will be incremented by 1. Native vlan R3 summarizes the details of R1 and R2 (summary command plus AS_SET keyword), so that the BGP summary route generated by R3 inherits the detailed AS_PATH attribute, and the packet capture on R4 will find the summary route. = 300 {100,200} AS_PATH : look at the results of the capture, found article summary route AS_PATH attribute consists of two parts ( segment ), the value 300 that the segment is Router ospf 100 Put all the routing entries + mask into the TCAM entry, which is the "row" in the figure. The binary 0 and 1 must match, and x does not matter. When I look for a destination, for example, look for " 01101 ": * i Neighbor 1.1.23.2 route-map test out Router bgp 345 86025 8.3.4 Questions 104 Route tag Tag 73 In the above figure, if both ends of the PC belong to vlan10d , if the fa0/23 port of SW1 will vlan10remove off, then the PC will definitely not be able to communicate. If the BGP route is locally originated (network or the redistribute) in , carries the MED to a value EBGP Peer *>i100.0.2.0/24 Weight *>i11.11.11.0/24 For ISL packages, MTU=1548 ( explained below ) Vtp pruning can only be turned on in server mode A distribution list is a tool used to control routing updates. It only filters routing information and cannot filter LSAs . Therefore: the distribution list is used in the distance vector routing protocol, and the route can be filtered normally in either in or out direction. But the work in the link state routing protocol is a bit problematic. R3 associates the route-map with the redistribution of the direct route 3.3.3.3/32 , tag#11 , and the route is passed to R2 . On R2 , the redistribution of RIP to OSPF is deployed. After the external route of 3.3.3.3 is injected into OSPF , the tag value is carried by default. Used for unidirectional link detection, mainly for fiber links. Devices that need both ends of the link support UDLD 5.5.5.5 ( metric 2 ) from 5.5.5.5 (5.5.5.5) MAC address PROTOCOL Logical aggregation of similar links Modify the default AD value of BGP . The command is as follows: Corresponding hwidb fast_if_number 4 Corresponding hwidb firstsw->if_number 4 Internet address is 10.1.12.2/24 VLAN is a very fundamental working mechanism of Layer 2 switches. The lower the value is set, the higher the protection level for the CPU . This value takes effect before and after the penalty action occurs. Of course, this value cannot be set too low. At least the legal traffic must be processed. Generally less than 1000 is almost the same. Determine if the frame has a VLAN tag . Lowest sender port ID BGP route advertisement Ip dhcp snooping trust Bytes The AS_PATH can be controlled by the policy to affect the route selection. For example, if you want R3 to reach the 1.1.1.0 network priority R1 , you can make a policy on R2 , as follows: Default-router 192.168.10.254 None uses the distribution list or the access control list deny 521 port. Configuring a VTP domain name Isis *>i 100 i Ip community-list 11 permit 100:11 BGP table on R6 : First , use the above command in the BGP process. This command will store the original BGP route sent by the xxxx neighbor in the local memory. When the inbound soft reset is configured ( clear ip bgp soft in ), the router will no longer The neighbor sends an update request, but executes the newly configured inbound policy directly in those BGP routes stored in the memory , thereby preventing the waste of resources caused by triggering large-scale routing updates, but this operation still consumes memory. Therefore, be very careful when using it.