ccnp 300-135 questions

ccnp 300-135 questions

300 Method three: default-information originate At the same time, R4 also received the 100.0 route introduced by R2 , but it was not passed to R3 . This is the principle of horizontal splitting of IBGP : " BGP routers will not pass IBGP to him and pass it to other IBGP neighbors." / / Interface or protocol Route-map test permit 10 Route-map overview A After receiving the response, you know B has established a connection with their locally. A also opens up an SAP value to indicate the connection, and sends a confirmation to B to establish the connection. Port Vlans in spanning tree forwarding state and not pruned / / Is to shield the route from the RIP re-released in addition to 1.1.1.0 , and re-release the local direct connection Each routing table entry must include at least the following three items: Port When an RSTP switch detects a topology change it will: 1,10,20,30 MTU is the largest transmission unit, and different systems have different settings and understandings for MTU . *>i Configuration BGP federal 25 Configure RIP unicast updates: Set ip next-hop verify-availability [ next-hop-address sequence track object ] Next Hop The version of the last bgp table sent by TblVer to the neighbor C 192.168.12.0/24 is directly connected, Serial0/0 1.0.0.0/24 is subnetted, 1 subnets Network Next Hop Otherwise the flag field is obtained by some calculation (as part of the verification process) Match ip address prefix-list 100 set extcommunity cost 1 10 Ip community-list standard del permit no-export ip community-list standard del permit 100:11 * 192.168.101.10, from 10.10.10.10, 00:12:46 ago, via Serial0/0 Route metric is 1, traffic share count is 1 Fast switching type 1, interface type 18 IP CEF switching enabled Type echo protocol ipIcmpEcho 10.1.1.2 source-ipaddr 10.1.1.1 frequency 10 Unicast update 53 The other values ​​of DSAP and SSAP are pure IEEE802.3 frames. KEEPALIVE message Show ip bgp dampening At the time, it is already " 200 i ", so doing prepend can only be inserted in front of 200 i , please pay attention to the difference from the previous one. In R2 , the energy from each R1 and R3 learning to 100.0 the EBGP route, if arranged on maximum-paths 2 In the BGP table, only one route is preferred, which should be R3 (because R3 's RouterID3.3.3.3 is less than R5 's 5.5.5.5 ) Switch(config-if)# switchport access vlan 10 100 Observe for a while, what will happen to R2 ? Why is there such a failure? The above command creates a policy-list ; the Policy-list can only contain a match statement. In addition: when the spanning tree reconfigures the new root port, other interfaces flood the network with DTP enables trunk negotiation between switches This is a very typical case. In the above figure, the network environment is like this. Suppose we have two routers, R1 and R2 , connected to the server farm. The server farm uses two three-layer switches to hang the network server. We have planned two subnets for production of 10.1.1.0/24 and office 10.1.2.0/24 . R3 is the access router. R1 , R2 , and R3 run OSPF . The above command means to inject the detail route defined in map1 in the local BGP RIB when the summary route matched by map2 is normal . When the summary route hangs, this detail disappears. This is called conditional injection . Below we look at the details of these two route-map , these need to pay special attention. Community: inherits the community of all detailed routes , forming a list Origin: inherited the worst of origin attributes Bridge ID of the root bridge BGP only passes the route that it uses, that is, the route that it considers to be Best to the BGP peer. Unsuppress-map Manually configure a secure address on the trunk interface to associate the vlan keyword. If the security address is manually configured on the trunk interface and the vlan keyword is not associated ,ccnp 300-135 questions, the security address will be associated with the native vlan of the trunk . The time interval between consecutively transmitted BPDUs of the root bridge . Default 2S Ip community-list 11 permit 100:11 At the same time, the two routes are marked in the BGP table: " *> ", indicating that the two routes are valid , and the best or optimal, best , so they will be passed to the IBGP neighbor of R3 . That is R4 Access-list 2 permit 192.168.3.0 The problem that the static route associated with the outgoing interface is in the network Protocol vulnerability R3 and R5 both advertise the routes of the same network segment to R4 . If the first eight rules cannot be determined, if R4 is configured: UDLD mode of operation (2) Declare the loop port 1.1.1.1224 *>i100.0.2.0/24 100 i 90 100 Can only be passed between IBGP peers (unless a policy is made, the LP value will not be lost between IBGP neighbors within the AS ), not in EBGP Port Neighbor 10.1.13.3 remote-as 345 neighbor 10.1.13.3 route-map test out no auto-summary 14 AS_CONFED_SEQUENCE A list of ordered AS numbers on a path to a particular destination. Block all ARP requests or on the DAI untrust interface (note the separation from DHCP snooping 's untrust interface) Ip dhcp pool BIND Multi-vendor routing environment The concept of traditional IP routing Let us review: When the router receives an IP packet, check the IP header of the packet, and take the destination IP of the packet to the routing table for comparison according to the longest matching principle. Finally, Forward the packet. Therefore, traditional IP routing can only be routed based on the purpose of the data. As a result, R6 will receive summary routes from R4 and R5 , respectively : 172.16.0.0/16 Traffic share 1 Ip community-list 11 permit 100:11 no-export Since the AS_PATH attribute does not change within the AS (only when the route leaves the AS ), the AS inner loop has a horizontal splitting mechanism, and the route reflector actually relaxes the horizontal splitting principle. This will bring some hidden dangers to the loop. Therefore, the route reflector needs to use the following two attributes to prevent loops: * i In addition, for R4 , R5 is a normal EBGP neighbor at the moment , and it is another AS64513 , and there is no relationship with me. There is a problem with the establishment of the federation. Therefore, you need to add the bgp confederation peers 64513 command on R4 . , then R4 will AS64513 regarded as its federal the EBGP the peer , while the addition AS64513 outside the AS treated as ordinary AS .