ccnp switch 300-115 cbt nuggets free download

ccnp switch 300-115 cbt nuggets free download

Bgp bestpath med missing-as-worst Interface mode, configure the interface as DAI trusted , the default is untrusted The same prefix is ​​obtained through different protocols, first than AD , and later than metric For the original attribute, it specifies the source of the route update, which has the following values: Each pVLAN includes one primary VLAN and multiple secondary VLANs . All secondary VLANs are mapped to the primary VLAN . FastEthernet1/0 V1 uses broadcast, which is sent every 30s by default , using UDP port 520 (source, destination port) Ip route 10.1.1.0 255.255.255.0 10.1.254.1 If R1 turns on auto-summary and network 1.0.0.0 , R2 can learn summary route 1.0.0.0/8 Establish BGP neighbor relations 4 A distribution list is a tool used to control routing updates. It only filters routing information and cannot filter LSAs . Therefore: the distribution list is used in the distance vector routing protocol, and the route can be filtered normally in either in or out direction. But the work in the link state routing protocol is a bit problematic. Network The default priority is 128 , the range is 0-255 , the smaller the better Path attribute EIGRP Router bgp 345 CISCO IOS 12.1 began to fully support dynamic soft reconfiguration of inbound routes. This soft reset method sends route-refresh messages directly to specific neighbors locally . S uppercase S , stale , indicating expired routes Timers Related commands : LocPrf When an activation of the Port-Security on the interface, MAC number of addresses has reached the maximum safe number of address configuration, and has received a new frame, and the source of this data frame MAC is not in these security addresses, then start punishment 0 , regarded as infinity 200 ? First come to know the first three-layer interface: SVI switched virtual interface, a logical interface of SVI , that is to say not a physical interface, when we create a VLAN on the switch , we can create a The SVI interface corresponding to the VLAN , for example, we created or CFI Note that with route-map , the last is implicitly killing any , while the suppress-map is different. 100 Two-point two-way routes redistributed problems 0 00:04:30 90 First define the track object , associated with an ip sla monitor Manually modify the hop count of RIP . First configure matching routes When will BGP automatically summarize? AS_PATH , and AS_PATH only when routing out this AS or BGP routers to update EBGP will change when neighbors in AS inside will not change, therefore, in the AS internal, anti-ring requires the use of split horizon. So how to solve the problem that R5 ca n't learn routing? 5.5.5.5 ( metric 2 ) from 5.5.5.5 (5.5.5.5) Neighbor 4.4.4.4 route-map LP out As a result, there is no problem with route delivery. From this experimental analysis, the automatic aggregation of BGP is obtained , and the main class network boundary is not required, which is different from the IGP . State BGP current callback state is basically opensent, etc., admin indicates that the neighbor is managed-type shutdown , when As a result, R6 will receive summary routes from R4 and R5 , respectively : 172.16.0.0/16 ? Metric Origin IGP, metric 0, localpref 100, valid, external, multipath , best The route closest to BGP NEXT_HOP is preferred , and the route is the route with the smallest IGP metric to the next hop router . Ip prefix-list 1 permit 100.0.1.0/24 ip prefix-list 2 permit 100.0.2.0/24 route-map LP permit 10 Max age 10.1.12.2 switchport trunk encapsulation dot1q switchport mode trunk 2.2.2.2 0 7 15 31 Route-map PBR permit 10 match ip address 1 Route-map OSPF3to2 permit 20 match tag 20 Although the network devices are in the same subnet, they belong to different pVlans , and communication between pVlans must be implemented through the default gateway. Sw(config)#vlan 201 Database , this database is DHCP Snooping listens for DHCP information recorded after the interaction, inside contains the client's IP , the MAC , belongs to VLAN -related information, etc., and this information, just as ARP 's legality verification. Local origin Route-map test permit 20 match ip address prefix-list 2 set metric 200 Ip address 10.1.12.2 255.255.255.0 Then use set comm-list 1 delete to delete, pay attention to the above community-list writing, use multiple lines, the experimental verification results are in When a data frame is sent from the Access port, the switch strips the VLAN tag of the frame and then sends it out. Path Send Update package Can not contain Note that the BGP created by R3 uses the AS number of 64512 , which is the federate member AS number instead of the federated AS number. MAC address. The default is 6 update cycles, which is 180s . The route entry tag when an entry with a larger hop count is received This experiment mainly verifies that automatic summarization does not occur at the boundary of the main class network: Ip dhcp snooping vlan 10 Interface fast0/1 1 R2#show adjacency detail VLAN Interface If R1 starts auto-summary and introduces 1.1.1.0/24 in the way of re-distribution direct connection , the subnet will be automatically summarized to R2. Solution 1 : Manually bind IP+MAC In addition to matching 100 to 106 outside the AS_PATH OSPF routing: including 3.3.3.0 , and the direct connection network segment 192.168.23.0/24 declared into OSPF is injected into the EIGRP process. This R1 Finally: R4#sh ip b Preemption enabled, min delay 30 sec Active is local, weighting 100 / / Configure etherchannel , ID is 1 , the mode is desirable Switch(config-if)# ip address 192.168.255.254 255.255.255.0 Route accurate summary algorithm This mode is the most worthy of reference . It is based entirely on other switching modes. The focus is on billing, monitoring, and network management of packets flowing through . Of course, you can also associate the route-map after re-issuing the command and set the tag in the route-map . MED : 100 200 i Send TCP packet Preferred routes sent by EBGP neighbors (relative to IBGP neighbors), preferred federation EBGP in federated EBGP and IBGP We can use the ip route-cache command , is enabled on the interface fast switching show ip cache to check the fast switching -related information . Route-map nat1 permit 10 match ip address 1 match interface serial0/0 Metric 100 Redistribute routes to the protocol ? This is the general case, of course, there are two situations, it depends on the specific environment and the specific routing protocol. Route-map usage scenario 10.1.25.2 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,ccnp switch 300-115 cbt nuggets free download, because R1 sends updates to R3 and is ignored by R3. 100 i Revoked route Optional non-delivery B and C receive this better BPDU and continue to flood the network. The route of ( permit ) will be filtered and the other will be released. Match one of 123 plus any character plus one of 7 to 9 , such as 167 , 3 spaces 7, etc. Route redistribution DHCP option 82 , also known as DHCP relay agent information option ( Relay Agent Information the Option ), is the DHCP option in the packet, which numbered 82 Origin Regular expression Between routers, routing information is passed, and the distribution list has absolute control over routing information. Therefore, if it is in the direction, by deploying the distribution list, the specific route can be filtered, so that the local routing routing table of the distribution list is changed, and when the local router updates the routing information to the downstream router, the actually updated content is An entry that is affected by the distribution list.