ccnp switch curriculum

ccnp switch curriculum

Experimental example: Calling in the distribution list STP operation In the output of Show and more , you can use the pipe character | with a regular expression to filter the output. The switches at both ends of the trunk need to use the same trunk protocol. During the migration, the router running DUAL AS can establish EBGP with the external AS using both the primary AS and the secondary AS. All devices in a VLAN are in the same broadcast domain, and different VLANs are different broadcast domains. The third column is empty or i . If it is empty, the route is obtained from the EBGP neighbor. The i indicates that this is the route learned from IBGP . The last column indicates the origin of the BGP routing information. For example, R1 redistributed into direct on the OSPF , with out distribution list can be filtered out direction 1.1.1.0 this external routes. But R1 redistributed incoming routing, if R2 with the out distribution lists direction tried to block R3 accepted routes or LSA , you can not, because this is not a local external routes originating. Switch(config-if)# ip address 192.168.255.1 255.255.255.0 The smaller the MED, the higher the priority The NEXT_HOP summary route is 0.0.0.0 (because the summary route is generated locally) 1 C 192.168.12.0/24 is directly connected, Serial0/0 1.0.0.0/24 is subnetted, 1 subnets The configuration of R2 is similar to the above. The key is to look at the configuration of R3 : Show ip cef Ip community-list 1 permit no-export ip community-list 1 permit 12:1111 Ip route 2.2.2.0 255.255.255.0 192.168.13.1 RIP secondary address problem After aggregate-address 192.168.0.0 255.255.0.0 , R1 can learn summary routing and 2.0 1,20,30 Port-Security configuration steps Regular expression example: Vlans in spanning tree forwarding state and not pruned When the GW loses the route to 10.1.12.2 and the connection to ISP2 is also lost, then the default route is taken. In another case, the idea is still the same, RR and Client It is actually an order with the following, so knocking in, show has become the following stuff. Metric =0 CISCO default MED is 0 , optional non-delivery SW1(config-if)# switchport trunk encapsulation dot1q SW1(config-if)# switchport mode trunk Router ospf 1 100 If you want to modify the weight , let R4 go to 100.0.1.0 and go to R3 to go to 100.0.2.0 and go to R5 ? Then the configuration is modified as follows: r route is not loaded into the RIB table, for example due to AD values, etc. Port-security does not support the destination interface of SPAN Data forwarding mode Rcp: Database agent URL The red font part of the above output is the layer 2 MAC information and so on. IP Routing Overview / / Use this command to delete Therefore, the role of the no-prepend keyword is: Do not prepend local-as to updates from ebgp peers . If you advertise the route to the EBGP neighbor of the primary AS , the secondary AS number is not attached . VLSM support Here to add a sentence, since attention to traffic, we must pay attention to the round trip of traffic, in general, we want 1.1.1.0 access 3.3.3.0 traffic to go ADC , then round-trip traffic generally requires a consistent path. That 3.3.3.0 to 1.1.1.0 data to a CDA , so to further D on the update to the C of 1.1.1.0 route of metric plus 1 jump. Promiscuous port capable pVLAN communicate with any device, regardless of the other master is in the VLAN , or secondary VLAN. switchport trunk encapsulation dot1q switchport mode trunk The MAC address pool of the CISCO CATALYST switch can hold up to 1024 addresses. The model of the switch determines the number of available MAC addresses . Not all Catalyst switches can support such multiple MAC addresses. Ip prefix-list 1 seq 5 permit 100.0.1.0/24 ip prefix-list 2 seq 5 permit 100.0.2.0/24 route-map test permit 10 LocPrf *> Verify the role of the match interface 2 2/1 BGP path/bestpath attribute entries using 248 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory To 100 end of the AS_PATH , which is the route originated in 100AS route RIP and OSPF Y Milne 's packet was sent to Roo because he learned the wrong one. CA004FEC0008CA014FEC00080800 " The When A Receives A Configuration Switch that the contains the BPDU Superior Information (Lower Bridge ID, path cost Lower, and SO Forth), IT Information Stores The Port for that. The this the If the BPDU IS ON The Received the root of The Port Neighbor 10.1.12.1 remote-as 100 Knowledge review Subnet Mask Then first mark the route prefix of 30.30.30.0/24 on R2 , use the community tag, and configure a route-map at the same time. Network 100.0.2.0 mask 255.255.255.0 Neighbor routing source neighbors allowas-in a few of my as numbers The message will not be passed to any BGP neighbors. The range is 0-65535 . Route-map RP permit 10 match policy-list as100 ------------------ 00:B0:64:04:09:99 Active is 10.1.1.252 (primary), weighting 100 (expires in 7.028 sec) Arp replies sent: 1 Ip default-gateway 192.168.100.254 Interface fast0/0 Neighbor 4.4.4.4 remote-as 345 LP takes the maximum value of LP in the detailed routing For example, R1 redistributed into direct on the OSPF , with out distribution list can be filtered out direction 1.1.1.0 this external routes. But R1 redistributed incoming routing, if R2 with the out distribution lists direction tried to block R3 accepted routes or LSA , you can not, because this is not a local external routes originating. R1(config-router)# network 192.168.12.1 0.0.0.0 area 0 R1(config-router)# distribute-list 1 out EBGP neighbor Experiment continued, after the above configuration, R4 has passed BGP learned from the R1 two of BGP routes. In a real-world environment, an IP address is generally used to indicate the object of communication, and the function of ARP is to " resolve " the IP to the corresponding MAC address. Set ip next-hop Interface vlan 100 Describe The greater the weight , the more priority Identify the type of message: Obviously, R2 is preferred to 10.1.12.1 . This is because the first 12 rules cannot be decided. Therefore, the neighbor IP is compared . Therefore, 10.1.12.1 is preferred . Of course, if the 10.12.1 address of R1 is changed to 10.11.12.1 , And on the R2 to do the corresponding modification of the neighbor ip , then R2 to 1.1.1.0 will switch to 10.2.12.1 , because this IP is small When ISP1 is down, and the GW does not detect it (that is , the interface of GW connected to ISP1 is not DOWN ), the traffic of PC access 100 is still thrown to ISP1 , which is disconnected. Or trunk Access-list 1 permit any route-map PBR permit 10 match ip address 1 Ip arp inspection log-buffer logs number_of_messages interval length_in_seconds In the example, the static route associated with the next hop does not have this attribute, so it is not matched. Finally: R4#sh ip b IP Routing Overview Except none Routing? Matches 100~109 , and 10 because " ." also contains spaces Same speed and duplex 2.2.2.2/32, version 55, epoch 0, per-destination sharing 0 packets,ccnp switch curriculum, 0 bytes // match AS ( 100,1 ) and ( 200,1 ) Neighbor 10.1.23.3 remote-as 300 Ip route 1.1.1.0 255.255.255.0 serial 0/0 Track 1 rtr 1 reachability So far, we have completed the basic configuration, then can ping the same 100.0.1.1 and 2.1 from R4 ? After the trial , we must get a negative answer. This is because there is no route in AS345 on R1 and R2 , that is, the backhaul route has a problem. In this topology, we can configure the backhaul route on R1 and R2 or Default route to complete the test of the experiment In the above figure, we inject OSPF routes into RIP . Traditionally, you can only set metrics on all incoming routes . However, with route-map , we can associate a defined one when configuring re-issue commands. A good route-map , in the route-map , we can create different properties or actions for different routes by creating multiple serial number statements. ORF Metric *>i100.0.2.0/24 If it is injected through network or re-release, the IGP next hop of the prefix will be the next-hop of BGP before injection. When the interface is up/down , all dynamically learned MAC address entries will be cleared. The statically configured secure address entries remain. AS_PATH ). This can lead to loops. The solution is to set the AS_PATH keyword to restore the AS attribute when C publishes the summary route. At this time, the summary route will declare AS_SET at the same time , and AS_SET is an unordered AS list, among which AS200 The information so that the B router receives this summary route and finds that the AS_SET has its own AS and therefore ignores the route.