ccnp 300-115 testking
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Ip dhcp snooping verify mac-address
Switch(config-if)# ip address 192.168.10.254 255.255.255.0 Switch(config-if)# no shutdown
R3 and R4 , R4 and R5 establish IBGP neighbor relationships, and R3 R4 R5 uses LOOPBACK as the update source and refers to the neighbor . To increase the reliability and redundancy of the network, we let R1 and R2 are 100.0.1.0 and 100.0.2.0 injected into BGP , here is the simulation of a redundant environment, that we can through R1 , also by R2 Go to 100.0. 1.0 and 2.0 networks.
( Well-known discretionary )
Both R1 and R2 are connected to the 2.2.2.0 network. At this time, R3 goes to ping 2.2.2.2 . Because the static route of the outgoing interface is used, R3 thinks that 2.2.2.0 is a locally connected network, so ARP request is sent , R1 , R2 , can receive the request message, and both respond to the request message (the premise two
Router bgp 64512
Load balancing mode 16
Fa0/20
( Optional transitive )
Migrate to the Established state if you receive a keepalive message from the other party
The configuration of R3 is as follows:
Note 21
Route is punished by dumpend
Match ip address 1 set metric 20
Private-vlan primary
B performs the corresponding checksum confirmation according to the type of the connection, and after confirming by these checksums, it is sent to the upper layer.
Implementation points
AS Hops 1
The larger the Local_Pref , the higher the priority
!! Take the default route
UPDATE message
Vlan 100
Configuration command: In interface mode, you must configure the interfaces on both ends of the link. After the completion, you can show ip rip database to view the routing details.
Two-point two-way route is re-released
Set interface priority,ccnp 300-115 testking, CISCO IOS default 128 ; CatOS default 32
Represents a range. Matches only one of the characters contained in the range.
RootGuard
Combine object tracking to detect the reachability of a remote device (or IP )
R1(config)# ip prefix-list 11 seq 5 deny 11.11.11.0/24 R1(config)# ip prefix-list 11 seq 10 permit 0.0.0.0/0 le 32 R1(config)# router bgp 100
<0-4294967295> 32-bit tag value
// This command is used to advertise the real AS number of the AS outside the federation .
None
Length, or mask length. When paired with the above ACL , some students will even write
R1 , R2 , and R3 run RIP , and 1.1.1.0/24 on R1 is not directly announced. On R2 :
First select root , the SW1 with the smallest MAC address of the switch wins and becomes root.
a(bc)?d
R3 and R4 , R4 and R5 establish IBGP neighbor relationships, and R3 R4 R5 uses LOOPBACK as the update source and refers to the neighbor . To increase the reliability and redundancy of the network, we let R1 and R2 are 100.0.1.0 and 100.0.2.0 injected into BGP , here is the simulation of a redundant environment, that we can through R1 , also by R2 Go to 100.0. 1.0 and 2.0 networks.
Using route reflector 23
802.1W BPDU format
RIP based on rumor updates
After Port-Security is enabled, related parameters have default configuration.
Public
300
Ip route-cache flow show ip cache flow
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 ,
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Via 10.1.13.3, FastEthernet1/0, 0 dependencies
R1(config-router)#redistribute rip subnets tag ?
Root modifies its own configuration BPDU to advertise the entire switching network about topology changes. Root sets the topology change ( TC flag) for a period of time in the configuration BPDU . This time is equal to the forwarding delay + Max. Age , the default is 35S.
UDP
10.1.12.1 from 10.1.12.1 (1.1.1.1)
Path
The client ( D ) passed to it by the RR is not passed to the non- client (E)
When will BGP automatically summarize?
BGP Speaker from IBGP routes learned whether it's advertised to EBGPpeer depends IGP and BGP synchronization to decide
Network 100.0.1.0 mask 255.255.255.0
Neighbor R2 unsuppress-map test
AS_PATH is a recognized attribute that describes the sequence of AS numbers that will pass through to the destination network . The most important role is anti-ring. If the BGP speaker finds that its AS number is located on the route received from the external peer, the route is ignored.
Preferred routes sent by EBGP neighbors (relative to IBGP neighbors), preferred federation EBGP in federated EBGP and IBGP
In this way, TC messages are quickly flooded across the network. Instead of using 802.1D , pass the message to root and then root
Configuration example:
Next turn on DAI on SW1 :
SwitchB first detects the topology change, and then generates the TCN BPDU and sends it out from the root port (because the root port is in the direction of the root bridge), B will continuously send the TCN BPDU until the designated switch C sends a TCN ACK to confirm.
The adjacency list in the CEF component is used for MAC or Layer 2 rewrite information.
Solution: Modify the routing protocol management distance 98
Lab 2 : The access switch is plugged into option82 and the core switch is relayed.
(global configuration command) activates portfast features on all non- trunk interfaces
Host 192.168.1.111 255.255.255.0
Match ip address prefix-list 100
Command
Configure no switchport ( routed port ) Layer 3 interface
STP port status
Underline, matching any separator such as ^ , $ , space, tab , comma, { , }
Route-map test permit 10
Network
Bindings are just special address pools. There is no limit on the number of manual bindings, but you can only configure one manual binding per host pool.
Do not send outside local AS (well-known community)
Extended ACL
Redistribute local direct connection network segment into BGP , MED value is 0 ; redistribute local static route into BGP , MED value is 0
Router bgp 100
Mtu 1500 , so it will be fragmented, then on R2 , the two fragments are reorganized.
Focus on the configuration of GW :
In addition, if the R1 update 1.0.0.0 to R2 , if R1passive out and R2 interconnect interface, invalid after the expiration, R2 on about the 1.0.0.0 route will Pdown , then R2 can still go to 1.0.0.0 , but will not Pass this route to other neighbors, instead sending non-stop messages. At this time, if the interface of R1 is passived , R2 will continue to receive the update, but it will not resume the route immediately, but will enter the holddown timer until the holddown timer expires before accepting the update of the route.
