ccnp switch website

ccnp switch website

verification Neighbor 3.3.3.3 route-map WT1 in neighbor 5.5.5.5 route-map WT2 in We restore the experimental environment to the basic configuration: BGP neighbor relationships are as follows The routing protocols that support TAG are: RIPv2 , EIGRP , OSPF , ISIS , BGP No synchronization no auto-summary The switch configured with Uplinkfast needs to be a stub switch or an access layer switch in the network three-layer structure. It cannot be the root bridge. Routing table By default all routes belong to this community match. Such an approach will match community included 100: 11 routes. Send Open package Network Written in front of the words: However, for sticky entries, the aging time is never activated and it will not age. Select the route with the smallest neighbor IP address ( the address of the neighbor in the neighbor configuration of BGP , that is,ccnp switch website, the update source IP of the neighbor ) Address-family ipv4 unicast Based on agreement None Vlan 100 Router bgp 100 Show ip bgp dampening The above figure only makes basic BGP configuration, releases 1.0 and 2.0 on R1 , does not summarize, and 1.0 and 2.0 BGP routes received by R4 . So how do you perform an accurate calculation of the summary route ? Let's look at an example: 192.168.1.0 declares that it has entered RIP , and R3 and R4 can learn this route and load it into its own global routing table. Then if we are at R1 , R2 , and R6 advertise the routes of their respective ASs through EBGP . In AS345 , these routes are re-advertised into OSPF , and then advertised back to BGP on the other two routers , and then advertised to their EBGP peers . . 2.2.2.0, but the update is 2.0.0.0 after the summary For further questions, see RFC 1403 - BGP OSPF Interaction 10.1.12.2 The idea is the same as Experiment 2 . In this way, SW2 will accept these DHCP messages and process them, and the PC will be able to obtain the address. Router(config)# router ospf 1 Modified OSPF the AD value Configure EIGRP unicast updates: SW1 and SW2 are configured as VTP mode client ; SW3 is configured as VTP mode Server That is to say, R5 goes to 100.0.1. and 2.0 each has two paths, which are through 10.1.25.2 and 3.3.3.3 , and finally R5. Is 6 , then the type is 802 , default ethernet All VLANs 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. Set next-hop specifies the address of the next hop , specifying the next hop of BGP . 10 Router ospf 1 Lease(sec) Type Ip arp inspection filter arp_acl_name vlan {vlan_ID | vlan_range} [static] Ip address 192.168.10.254 255.255.255.0 If it is unreachable, the suppression timer is started at the same time. If the timer expires, the same neighbor still advertises the We look at the above picture, R1 , R2 have issued routes, R3 on these detailed routes are summarized, summarized into 172.16.0.0/16 , summary routes are ? Ip prefix-list huizong permit 172.16.0.0/16 ip prefix-list mingxi permit 172.16.1.0/24 ip prefix-list xiayitiao permit 10.1.24.4/32 route-map RP_mingxi permit 10 Bgp inject-map RP_mingxi exist-map RP_huizong copy-attributes Type ( Type ) Private-vlan community Vlan 102 Show run | in route Using route reflector 23 Network 100.0.1.0 mask 255.255.255.0 This feature is quite unstable and is not recommended. 10.1.13.3 (interface) ip load-sharing per-destination R3 and R4 , R4 and R5 establish IBGP neighbor relationships, and R3 R4 R5 uses LOOPBACK as the update source and refers to the neighbor . 13 This is the ICMP redirect message sent by R1 to R3 . Note that the Gateway address field in the header is filled with the next hop IP that is closer to the destination than the destination . Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer) Flag: 0x820 The update is sent. At this time, both parties have their own routes, but 1.1.1.1 cannot ping with 2.2.2.2 . As we R3 on the RIP routes injected into OSPF marked the Tag 1111 , then the next supplement: *>i100.0.2.0/24 The set command above is used to define the detail route to be injected into the local BGP RIB . The injected prefix can be used R3 re-releases the incoming A route, so R2 , R3 , and R4 form a routing loop. PS : When the same router has two static routes to the same destination, the outbound interface and the next hop are used respectively. The two routes are load balanced (because the AD value and the metric value are equal). The static route configured by the outbound interface is imported into the routing table as a directly connected network. For details, see the static routing part of this document.