ccnp switch topology

ccnp switch topology

Neighbor 10.1.12.1 dmzlink-bw Run RIPv2 , the default R1 update 1.0.0.0/8 is summarized to R2 , and the automatic summary is closed on R1 , then R2 learns to 1.1.1.0/24 , and since it still starts automatic summarization, the update to R3 is 1.0.0.0. /8 . This time if R2 on ip route 1.1.1.0 255.255.255.0 null0 , then R2 is routed on the table 1.1.1.0 becomes static static routing, and the R2 is no longer to R3 updated RIP 's Migrate to the Established state if you receive a keepalive message from the other party / / There is a S entry in the routing table By default, the longest matching principle is adopted. If it matches, it will be forwarded. If there is no match, the default route will be found. If the default route is not available, it will be discarded. R2 re-released the incoming A network segment route and then got up? Then R3 will ignore the route from R1 update. For R3 , go to If the route learns to a non- client IBGP peer , it is reflected to all clients and EBGP neighbors. 100 0 100 0 100 i Again rule 11 , it seems to take effect,ccnp switch topology, but this time the R3 of BGP routerID than reform R4 large, found R5 Still preferably R4 , because "If a path contains RR properties, producer ID to select the optimal path during Instead of RID ” Example 2 : BGP Identifer ROUTER-ID and OSPF selected routerID consistent manner Weight 2.2.2.0 Routing Although the next hop is directed to R1 , it does not use the outbound interface to create routing entries. From the experimental phenomenon, it is not matched by the match . Needless to say, 3.3.3.0 , the associated interface is s0/1 . Ip route 192.168.10.0 255.255.255.0 192.168.1.1 But it must mention , this model because also store the relevant information , Statistically , approximately 65536 data streams (Flow) will consume 4MB of system buffer. Neighbor authentication 1.1.1.1 (metric 65) from 1.1.1.1 (1.1.1.1) * i Length of the circuit-ID type Root received the TCN , sent back a TCN ACK to C . By defining AS345 as a federated AS (large AS ) and a member AS (small AS ) in the federated AS , the problem of IBGP route delivery can be solved . (global configuration mode) ip dhcp relay information trust-all R5 release B segment RIP routing, R2 and R3 can learn, at the moment we are in R2 and R3 are on to OSPF to inject RIP routing, assuming that R2 injected first, then the B route will be R1 update to R3 , R3 this When you learn B routing from both RIP and OSPF , then it will: Sw(config-if)#switchport mode private-vlan host The process of processing a VLAN frame by a trunk port is as follows: Route-map 0 00:04:30 At this time, actually R1 's loopback port to R2 needs at least 2 hops, then this time you need to configure both neighbor xxxx ebgp-mul 2 Match ip address 2 Set ip next-hop verify-availability [ next-hop-address sequence track object ] Relevant points PVLAN configuration example 4 After the maximum number of allowed MAC addresses of the port-security interface is set , the security address entries associated with the interface can be obtained as follows: We restore the experimental environment to the basic configuration: BGP neighbor relationships are as follows 100 Report routing information. Vlans in spanning tree forwarding state and not pruned Set interface Precautions: Policy-list configuration ? RR can modify the cluster-id After receiving the packet check, R2 finds that this is the IP of the same subnet as the interface that accepts the update package , so accept this update. Therefore, this test, although the interface masks on both sides are different, but can accept each other's updates, and can also ping between 1.1.1.1 and 2.2.2.2 . Configuration Example 3 (at a single routing protocols -OSPF ) Route-map can be used in different commands for specific purposes 20.20.20.0/24 When the switch receives suboptimal BPDUs from other designated switches or root bridges , 802.1D encounters this situation by first ignoring these suboptimal BPDUs . Show ip b rib-failure The Ip helper-address command is configured on the Layer 3 interface that receives the broadcast discovery packet sent by the client , or "blocks" the broadcast DHCP packet. For example, if it is a Layer 3 switch, use the access. interfacing PC , then you should configure the VLAN 's SVI interface. 2 VLAN RIP defines two types of request messages and response messages. version Neighbor maximum-prefix xx restart 2 Activate a particular VLAN of DAI Ip dhcp snooping binding mac-address vlan vlan-id ip-address interface interface-id expiry seconds What is the cause of this phenomenon? R4 does not pass the route that R1 introduces and passes through R3 to R5 . * Routing via 192.168.12.1, Serial0/0 The BGP update package is as follows. You can note that the length of the AS is 2 , which is " 300 , 100 ". Note that this is an ordered list of ASs . R3 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. LP takes the maximum value of LP in the detailed routing Note that this address is the address used by the neighbor to establish a BGP neighbor relationship. STP (PVST) Neighbor 3.3.3.3 route-map WT1 in neighbor 5.5.5.5 route-map WT2 in DMZ-Link Bw 193 kbytes Set tag 20 Port ID Define a maximum value: define the maximum number of hops 15 hops, 16 hops unreachable to avoid routing loops Used to increase the route metrics learned through EIGRP or RIP when inbound or outbound . Router bgp 100 BGP , the IBGP neighbor relationship is established between the BEs . If A has a network segment 1.1.1.0 , A injected into the BGP , and transmitted to the EBGP neighbors B , (2) By default, the routing entry of 1.0.0.0 updated by R1 is ignored. After configuring ip rip receive v 1 on S0, you can learn. The format of the resulting file is as follows: R1 update source IP match, although the update source of R2 configuration is the default (packet outbound interface IP 10.1.12.2 ), but the BGP connection establishment between the two is no problem, because the connection of R1 to R2 is no problem. . At the same time, it is also possible to delve into the routing problem. For example, if R2 is localized to the 1.1.1.0 static route and is configured as the default route, we will find that the BGP connection can still be established, because R2 is the passive of the BGP connection in this example. who, R1 have specific routes to initiate connection. However, if the static static route from R1 to 2.2.2.0 is changed to the default, then it will not work, and R1 will consider " no route to peer ".