ccnp tshoot dumps 2018

ccnp tshoot dumps 2018

Manually modify the hop count of RIP . First configure matching routes Then use set comm-list 1 delete to delete, pay attention to the above community-list writing, use multiple lines, the experimental verification results are in Underline, matching any separator such as ^ , $ , space, tab , comma, { ,ccnp tshoot dumps 2018, } Must be a zero field. The address of the slave is the optimal next hop address. Solution: Modify the routing protocol management distance 98 ! ---------- 100 Paths: (1 available, best #1, table Default-IP-Routing-Table) Not advertised to any peer When the switch receives suboptimal BPDUs from other designated switches or root bridges , 802.1D encounters this situation by first ignoring these suboptimal BPDUs . *Mar 16 17:09:21.858: DHCPD: relay information option exists, but giaddr is zero. Affect routing decisions by modifying weight 10 When a BGP router sends a route update to its EBGP neighbor, it cannot carry the LP attribute. The LP value of the EBGP route received by the peer is empty. Access-list 2 permit 10.1.2.0 route-map cisco permit 10 Ip prefix-list 1 seq 5 permit 100.0.1.0/24 ip prefix-list 2 seq 5 permit 100.0.2.0/24 route-map test permit 10 If R2 on ip route 1.1.1.0 255.255.255.0 null0 , this time there is no routing table OSPF of 1.1.1.0 routing the unsuccessful thus re-release, so R3 can not learn the 1.1.1.0/24 route; Trunks can be statically configured or negotiated through DTP . !! Globally enable DHCP snooping Same speed and duplex By default, this database is dynamic, which means that when the switch is restarted, all entries in the database are lost. The result of this event may cause network disruption. So we can store this database as a file, this is the DHCP snooping database agent . The configuration command is very simple, global command: CDMA-Ix CDMA Ix interface No-export Under normal circumstances, the data is preferred to go ip next-hop , that is, go ISP2 Ip route 0.0.0.0 0.0.0.0 Education Network Next Hop IP 10 After the configuration is complete, use clear ip bgp * soft to reset it softly. The aggregate-address command is used for BGP manual summarization. The following is a detailed explanation of all subcommands of the command. RR self-originated route Routing? The key point is that R2 , through the R2 deployment redistributed routing , routing information may be selected in different transmission routes between the domains. After this time has elapsed, the route entry will become 16 hops, marking the unreachable route possibly down . Gateway of last resort is not set 100 100 i The router uses this information to construct a new Layer 2 header for the data frame and then forwards the message to the outbound interface pointing to the next hop. Maximum inhibition time: 60 minutes ( four times the half-life ) Establish BGP neighbor relations 4 You can use loop guard to prevent alternate or root ports from becoming designated ports because of a failure that leads to a unidirectional link. This feature is most effective when it is enabled on the entire switched network. Loop guard prevents alternate and root ports from becoming Designated ports, and spanning tree does not send BPDUs on root or alternate ports. When an RSTP switch receives a BPDU with the TC bit set , it will: Ip address 10.1.25.2 255.255.255.0 Associate route-map when route is republished (typical case) Although the decision to forward the message is implemented by the FIB , the second layer of frame rewriting is done according to the information in the adjacency list. The second layer needs to be rewritten to include the second layer for frame forwarding. head. For Ethernet, it is the new source, destination MAC , and type field. E.g: R2#sh ip route TCN BPDU Configure BPDUs Only when the update message is sent to another AS when, the BGP router before its AS number append AS_PATH in. This sentence also implies another meaning, that is, if you want to modify the AS_PATH attribute, you must execute the policy on the AS border router. Of course, R3 should also be configured similarly. Network Other configuration commands Through the above configuration, the BGP neighbor relationship can be established, let's show it: BGP routing rules Router bgp 345 Port-Security violation penalties Portfast After completion of the above-described basic configuration, we can at R5 to see the phenomenon, R5 simultaneously from R2 received 100.0 route segment, also from R3 received from the R1 release of 100 route segment, the final R5 will The route of R2 is preferred , which is matching this rule. 0 ? ... After a few seconds, D receive this the BPDU , Block out port P1 If the switch does via a untrust interfacing a downstream switch, and release of the desired received by the interface, with a downstream switch sends out option82 of DHCP messages, use the global command: IP Information Option DHCP Snooping the allow-Untrusted , while Because it is a DHCP packet received through the untust interface , a DHCP snooping binding database entry is created based on the result of the interception .