ccnp tshoot topology 300-135

ccnp tshoot topology 300-135

RFC1723 defines an acceptance control switch R2(config-router)# redistribute eigrp 100 subnets Basic VLAN concept The routing between the internal LOOPBACK of the AS can be learned separately. Both R1 and R3 update the route of the 100 network segment to R2 . Without any policy, the BGP routing rule will always be compared to the RID , and finally the route of R1 is preferred . The configuration of R3 is as follows: SW1(config-if)# switchport trunk encapsulation dot1q SW1(config-if)# switchport mode trunk Notification message !! ISP1 , ISP2 and GW all need to open CDP 1.1.1.1 (metric 65) from 1.1.1.1 (1.1.1.1) Gateway redundancy technology IBGP horizontal segmentation 4.3.1 improvements 35 Redistribute ospf 3 subnets route-map OSPF3to1 router ospf 2 Enabling BPDU filtering on an interface is the same as disabling spanning tree on it and can result in spanning-tree loops. Switch(config)# vlan 255 Switch(config)# interface fast0/1 We look at the above picture, the external detail route 172.16.32.0 – 39.0/24 , and the summary route 32.0/21 are introduced into OSPF by R1 , now To this end, some organizations and manufacturers propose to layer the data link layer, which is divided into logical link control sub-layer ( LLC ) and media access control sub-layer ( MAC ). Such different physical layers correspond to different MAC sublayers, and the LLC sublayer can be completely independent. As shown in Figure 1-4 . Using reflector To maintain a consistent BGP topology, the RR does not modify certain BGP path attributes when it reflects routes . These attributes include NH . Access permanent nontrunking mode and negotiate with the peer interface to make it a nontrunking link When we deploy PBR on an interface , if this interface receives a packet, it will: When the previous eight routing principles fail to optimize the optimal route, and the maximum-paths [ibgp] n is configured under the BGP process , and the value of n is 2-6, the equivalent load balancing will be performed. Network mark A VLAN divided into several separate VLAN , the VLAN use the same IP network segment. Neighbor 3.3.3.3 update-source Loopback0 neighbor 5.5.5.5 remote-as 64513 Feature VLAN: Decision making Neighbor 1.1.1.1 weight 2000 sets the route sent by the neighbor to 2000 weight (local) Sh ip bgp neighbors {address} advertised-routes Another recommended solution is to adjust the management distance of the routing protocol: AS_CONFED_SET A list of unordered AS numbers on a path to a specific destination , using the method with AS_SET Switch(config)# mac address-table static machine mac interface vlan vlan number to cancel with no mac address-static ...... R8 to re-advertise 8.8.8.0 into the BGP , has spread to R10 , the R10 on the route AS_PATH is 98? , Network Promiscuous port capable pVLAN communicate with any device, regardless of the other master is in the VLAN , or secondary VLAN. Priority 120 (configured) Network On R2 and R3 , there are two OSPF processes. If shown, one is OSPF1 and the other is OSPF2 . Note that this dual process is mainly implemented on the two ASBRs R2 and R3 . Pay attention to the changes in our experimental environment. The community value carried in 12.12.12.0 is no-export , if we only want to match no-export R1(config)# access-list 1 deny 11.11.11.0 R1(config)# access-list 1 permit any R1(config)# route-map rp permit 10 R1(config-route-map) match ip address 1 R1(config )# router bgp 100 Logical aggregation of similar links Bgp default local-preference 500 // Modify the default LP value By default, as long as DAI drops the message, it will be logged [Experiment 2 ] There are subnet routes (match); there are default routes,ccnp tshoot topology 300-135, subnet routes Y Repeat, you can configure multiple Default-router 192.168.10.254 Vlan 10 Metric LocPrf Weight Route-map test deny 10 match tag 1111 Redistribute ospf 3 subnets route-map OSPF3to2 SW1(config-if)# glbp 1 10.1.1.254 100 Also, when R2 hangs, the entry of 172.16.2.0/24 is invalid, and the data destined for the 2.0 subnet is matching 172.16.0.0/16. If an interface is in the flooding state, it will bring a lot of upadate and witdhdrawn messages to the network . Therefore, for a flipped interface, no bgp fast-external-fallover is recommended . After the interface is shut down, the BGP session and neighbor relationship will remain until ACLs to release or discard ARP packets. CISCO routers have two ways to find the global lookup of routes: classful ( Classful ) lookup mode and classless ( Classless ) lookup mode. Deployment Highlights 63 This entry will be entered into the routing table as a direct network (see below) Default route 108 No community attribute The route weight generated by the local network is 32768. Baby giant frame is larger than the standard MTU 1500 bytes, but less than 2000 bytes OSPF . In this way, for R4 , it goes to 192.168.1.0 , there is a sub-optimal path , that is, around the long way, take R2-R3-R3-R5 ? For example, change the COMM value of a route of AS12 to 10000 , and the RFC uses hexadecimal to indicate the COMMUNITY attribute, while CISCO RIP version number: Configuration example 1 ( -RIP in a single routing protocol environment ) Ip route 100.1.0.0 255.255.0.0 null0 When thinking about the route reflector, consider the cluster as a logical whole. RR and client together form a reflection cluster, but only RR. Routing? ? 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. Routing. So go to both network segments and go to R1 . So if we want to go to 11.11.11.0 and take R3 , so that these two destinations can be diverted? We can choose to route the source from 10.1.12.1 in the EIGRP process of R2 . The cost value is increased, so that the OSPF metric of R4 going to 3.3.3.3 route becomes larger. What happens? Vtp pruning can only be turned on in server mode Double-point bidirectional routing re-issuing problems 92 Protocol Interface 200 *> 100.0.1.0/24 Based on packet load balancing, all packets are rounded on the outgoing link. If you want to use message-based CEF load balancing, you need to configure this command on all outbound interfaces. The buddy experiment has verified that it can indeed be per-packet load balancing. Paths: (1 available, best #1, table Default-IP-Routing-Table) Not advertised to any peer Different prefixes (network number + mask, indispensable), belonging to different routes in the routing table Catos port switch ID in the default priority 32 (priority . 6 th 'bit ) , the IOS switch default 128 (priority field . 8 bits) ? Not used (set to all 0s ) 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. No synchronization no auto-summary If you want to turn off ICMP redirects, you need to use no ip redirects on the interface . The introduction of Cluster is to provide redundancy in the environment of RR . In conventional clustering design, a plurality of RR is used for one or more client service, these RR are configured the same CLUSTER_IDs , the ID is the 4 -byte IP form identifier default is RR own BGProuterID If two RRs have the same CLUSTER_ID , then they belong to the same cluster. Another very important role of CLUSTER_ID is anti-ring. When a RR receives BGP routing updates, it carries the same ROUTERID as its own .