ccnp switch overview

ccnp switch overview

meaning Async Async interface CLUSTER_LIST is a string passed the route the route reflector cluster ( Cluster ) of the ID , the AS each route in the cluster has a reflection 32bit Assuming the environment is like this, R1 re-releases A route into OSPF ,ccnp switch overview, then R2 will learn this OE2 in its own OSPF process 1 . 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. Ip address 192.168.100.254 255.255.255.0 3.3.3.3 PBR (Policy Routing) 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. no ip dhcp snooping information option Priority , which is 3 bits long, indicates the priority of the frame. The value ranges from 0 to 7. The larger the value, the higher the priority. We restore the experimental environment to the basic configuration: BGP neighbor relationships are as follows Accept either real AS or local AS from the ebgp peer . Translation: EBGP peers can use either PriAS or SecAS to local remote-as . For example, after configuring the above command on R2 , R3 is 10.1.23.3 . In its BGP process, you can use neighbor 10.1. 23.2 remote-as 200 , you can also use remote-as 201 to refer to BGP neighbor R2. In the above figure, R1 and R3 will update routes 1.1.1.0 and 11.11.11.0 to R2 . Of course, by default, R2 is definitely the preferred EIGRP. Version Ip community-list 11 permit no-export route-map test permit 10 100 Set community no-advertise route-map setCommu permit 10 router bgp 300 * i The frame structure formed by the MAC sublayer is mentioned in the introduction above , including IEEE802.3 frames and ETHERNET_II frames. The configuration of R2 is as follows: Prefix-list Untitled-1 At the same time in the out direction, there is no problem. Kanga sends an arp request, requesting Milne 's mac , then Experimental phenomena: SW2 and SW3 are similar situations; note that at this point we are not allowed to do any static configuration of the allowed vlan configuration on the trunk port. After the data transfer is completed, A to B transmits a data frame to tell B releasable attachment, the communication ends. MED Known via "ospf 1", distance 110, metric 20 The status of STP is as follows: Origin IGP, metric 0, localpref 100, valid, external, multipath BEGIN After the policy to take effect View R4 's BGP table: RIP-2 Only Requires trunk link support between switches Network This is the black hole routing problem, in order to avoid this problem, consider the BE on the BGP routes redistributed into OSPF to solve, but to do so the consequences are unpredictable, after all, BGP routing entries carried is quite enormous. Another solution is to require the routers in the AS to run IBGP and implement IBGP full interconnection. Then the routers in the Transit AS can know the BGP routes, thus solving the problem of routing black holes.