ccnp route 642-902

ccnp route 642-902

S uppercase S , stale , indicating expired routes If R1 R2 is established between EBGP neighbor relationship, because EBGP establish neighbor relations will check direct route, and the default TTL = 1 , and 3.3.3.3 Half-duplex and full-duplex are the concepts of the physical layer, and the different access modes for the duplex mode of the physical layer are the concept of the data link layer,ccnp route 642-902, thus forming an important feature of Ethernet: the data link layer and The physical layer is relevant. 100 On this topic, the individual feels that there is no need to study it. It does not make much sense for the research of class-based routing protocols. No matter the actual application or the LAB exam, it is no longer involved, and you are interested in making it yourself. Assuming the environment is like this, R1 re-releases A route into OSPF , then R2 will learn this OE2 in its own OSPF process 1 . As shown above, the position of the line is 16+4=20 , so we get the summary address: 192.168.0.0/20 , which is the most accurate summary address. learner 10.1.34.3 from 10.1.34.3 (3.3.3.3) In the R3 , the route AS_PATH learned from R2 about 1.1.1.0 will become " 6666 200 i ", because R3 receives 1.1.1.0 3.3.3.3 R3 receives two routes, respectively carrying the community attribute as above. Now, we only want to delete the no-export attribute of the 11 route . Route-map first acquaintance Note inconsistent with err-diasble difference is, ERR-disable will disable off the entire interface, and inconsistentport is for a particular VLAN 's. ? 100 Suboption type Not the routerID of R1 , because it is not necessary at all). R2#sh ip b 100.100.100.0  official version Circuit-ID suboption fields FastEthernet0/0 - Group 1 State is Active Next Hop Adding redundant routing Enabling BPDU filtering on an interface is the same as disabling spanning tree on it and can result in spanning-tree loops. RIP re-advertises routes to OSPF : * i100.0.1.0/24 At the same time, the penalty value is reduced at a certain rate. At the end of each half-life, the penalty value becomes half of the original value (if the route is no longer flipped) When both the primary and secondary addresses exist, RIP will use both the primary and secondary addresses as the source to send routing updates. So R1 and R3 will learn the routing update of 2.2.2.0 . But R3 ca n't learn 1.1.1.0 , on the one hand, because R1 sends updates to R3 and is ignored by R3. The federation is another way to solve the full interconnection of IBGP . We can divide a series of small ASs in the AS (Federal AS ). These small ASs are called federate members AS . In the federated members, BGP routers maintain IBGP relationships, follow the principle of horizontal splitting, and in the member federation AS The maintenance of the federated EBGP relationship is not restricted by the IBGP split. All federate members AS are also affiliated with the federal AS , and the federal AS logo is used uniformly .