ccnp switch and routing

ccnp switch and routing

Route tag 1111 The ETHERNET_SNAP standard was developed by the IEEE 802.1 committee to ensure interoperability between IEEE 802.3 LAN and Ethernet. Redistribute ospf 1 metric 3 The second command is to adjust the AD value for external routes, inter-area or intra-area routes . Ip route 1.1.1.0 255.255.255.0 serial 0/0 Both R1 and R2 inject 100.0.1.0 and 100.0.2.0 into BGP using network . The above four types are distinguished by the type code in the AS_PATH attribute. For the two federally unique AS_PATH types, please refer to the “Federal” section of this document for details. How do you understand the first two AS_PATHs ? RIPv1 update and receiving rule verification 32 bits Experimental needs In the port field of the circuit-ID suboption, the port numbers start at 3. That is to say,ccnp switch and routing, in this field, the port number is from 3 , the first port number is 3 , and so on. For example, a 24- port switch with an SFP slot , port3 is fast x/0/1 , port4 is fast x/0/2 , and so on, port 27 is the x/0/1 port of the sfq module . Where x is the stack member number. 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. Each RIP message contains routing entries, up to 25 , and more than one message is required. Use network or redistribute manner IGP introducing route BGP when , MED will inherit IGP route Metric ( direct routes and static routes Metric is 0) Preferably the BGP NEXT_HOP nearest route Working Mechanism Distance 100 192.168.12.1 0.0.0.0 1 Experimental example: Called when republishing 2 : Reponse message, send all or part of its routing information, in a Response message Neighbor 3.3.3.3 update-source Loopback0 neighbor 3.3.3.3 next-hop-self Router bgp 345 The configuration of R4 is as follows: $ The difference between set ip next-hop and set ip default next-hop is relatively simple, it is not resolved here. 8.1 Overview 91 Route-map BGP2OSPF permit 20 match ip address 2 AS_SEQUENCE exactly the same, except that the list of AS numbers belong to the local Federation AS The route works, but it is basically not used now, because the uncertainty is too strong) 200 i Advanced features 38 Ip dhcp snooping trust Optional delivery Neighbor xxxx advertise-map xx exist-map xx The DA 40bit multicast address is used to indicate that this FRAME is an ISL . One thing to note here is that ip bgp-community new-format is used to convert the display format of community in CISCO IOS . When using regular expressions in the extended community-list list, the filtering results will vary depending on the format choice. Other configuration commands A tool used to control routing updates can only filter routing information and cannot filter LSAs . 5.5.5.5 ( metric 2 ) from 5.5.5.5 (5.5.5.5) Process Switching ( process swap ) If there is a tag , it is determined whether the trunk port allows the VLAN frame to enter. Allow the next step, otherwise discard the frame. We know that in a campus network, the largest number of devices should generally be switches (Layer 2 and Layer 3 switches), of which the number of Layer 2 switches is mostly. The Layer 2 switches are in a typical Layer 3 network structure. At the "access layer", the main task is to provide access to the PCs and users of the terminal , and to divide the VLAN isolation broadcast domain, and then run STP to provide a Layer 2 anti-ring mechanism. A small and medium-sized campus network, the number of two-layer switches is often hundreds. These devices are usually unpacked at the customer site, and are usually commissioned by engineers on the site with a console cable.