The Cisco 3945 domain routing protocol (idrp) uses a 16-bit digital number for the autonomous system number. This number runs from 1 to 6553564512 to 65535, with the latter being a value designated for private use. 2) between two distinct autonomous system routers that are both running BGP, which is referred to as the external BGP (eBGP); between two identical BGP routers that are both running BGP, which are referred to as the bGP (iBGP); Ibgp routers do not need to be directly linked neighbors, but they do need to create igp, and transmission is not necessary for igp; ebgp routers are often physically connected to each other; the default value for the ttl value is 1. The only thing that BGPS routers need to do is deliver the incremental update, and BGPS always provides live news; I was instructed that the external network way is as follows: all bgp routing redistribution to all routers in the igp; ibgp as; 6) Maintenance of the BGPS, including optimization, synchronization with the IGPS, and the previous jump up to; It is not possible to operate an IP-based gateway (IBGP) router from the neighbors that have learnt to other routers; As for the bgp level segmentation, the only thing that can be disseminated is the optimization of the routing; a message type known as the bgp 1) to open the message (open): hold includes time and bgp routingid; 2) survival message (keeplive): three times in hold time; 3) to keeplive: three times in total hold time; update message (update): changes made to the route in order to get the best possible BGPS; 4) a notice message (notification) says that there is a routing issue and that the BGPS connection has been closed by management; three BGPS are idle. 1) the search of the route table, the router’s initialization of resources, the establishment of a TCP connection, and the listening to of the remote business gateway protocol 2) Connect: locate the routing table three handshake of TCP, demonstrating that TCP has successfully connected to the open send state; if this does not occur, go to the idle state in order to connect; 3) open sent: open the message that contains the information that is being sent; open confirm: 4) got open messages from each other on neighbor relations and consultation activities; The last state is the fifth and final state. Attribute of four bgp 1) Recognized attributes: recognized attributes all manufacturers bgp implementation must be able to identify the attributes, recognized as mandatory attribute must appear on all bgp routing updates; recognized the freedom to decide property can not appear in the bgp update; recognized the freedom to decide whether or not to include the property in the property list; 2) optional attribute: an attribute that is not recognized and is called as optional; optional attributes might be delivery or non-delivery; The BGPP property is described as follows: it is acknowledged as a necessary attribute; it is recognized as an attribute that respects the freedom to chose; it is an optional transfer property; it is an optional non transitive property. This is a well-known characteristic that allows you to skip the loop; 4) as route 5) the next hop attribute: skip to bgp is as, rather than the router, for another as network, the next hop is the way to the network, which takes the form of an entry ip address; 6) source: source is a property that is considered to be required. It is responsible for defining the path informationsource and specifying the path that is learnt by what means. n igp: internal routing in the initial as; n egp: routing through egp was informed, in the form of bgp e, for example: weightdistribution; n incomplete: unknown source routing or accomplished through other methods such as: informed, redistribution, or static routing; n igp: routing through egp was informed; n egp: routing through egp was informed; Seventh, the local priority: the local as to other as numerous path first pick a route, the default value for the local preference is one hundred, and the higher the number, the higher the priority; 8). community is a method for filtering into the station and the station route; community is optional; if the router does not recognize the transfer property, community, it will leave it to the next router to deal with; if the router is able to identify community, you will need to configure it in order to spread the community; otherwise, the community will be dropped. The ninth characteristic, known as the multi exit discriminators property, is used to indicate the preferred way into the as for the external neighbor. when the entrance with a plurality of time, as can use med to dynamically influence the other as how to choose to enter the path, med is the only attribute to a can influence the data into the as, med only in the ebgp transmission, the med value is smaller,the more optimal path; note: the effect of med into the as data stream, and the local priority effects of left as data stream. Is the router exports, while the local priority attribute refers to the as export. The weight of the attribute is in the router configuration, and it will not spread to any other router. Only local delivery is affected by it. The higher the value, the higher the priority, and the optimal path; the value range is from 0 to 65535, and the default weight path router advertisement has a value of 32768. 5 decision-making procedure for routing 1) favored employing the router with the maximum weight; (cisco special, only for the current router) Secondly, choose the local route with the greatest priority; (local priority for as internal) 3) the desired local router router: the local network, the ability to set the aggregated distribution or the Internet Group Protocol; (the current router announcement the next hop routing for 0.0.0.0) 4) choose the route that takes the shortest way; 5) The source code route of minimum (igpcisco 3925 price “>1 bgp bgp 1) is a kind of inter-cisco 3945 domain routing protocol (idrp). The autonomous systemnumber is a 16-bit digital number that runs from 1 to 6553564512 to 65535, with the exception of the number that is reserved for private use. 2) between two distinct autonomous system routers that are both running BGP, which is referred to as the external BGP (eBGP); between two identical BGP routers that are both running BGP, which are referred to as the bGP (iBGP); Ibgp routers do not need to be directly linked neighbors, but they do need to create igp, and transmission is not necessary for igp; ebgp routers are often physically connected to each other; the default value for the ttl value is 1. The only thing that BGPS routers need to do is deliver the incremental update, and BGPS always provides live news; I was instructed that the external network way is as follows: all bgp routing redistribution to all routers in the igp; ibgp as; 6) Maintenance of the BGPS, including optimization, synchronization with the IGPS, and the previous jump up to; It is not possible to operate an IP-based gateway (IBGP) router from the neighbors that have learnt to other routers; As for the bgp level segmentation, the only thing that can be disseminated is the optimization of the routing; a message type known as the bgp 1) to open the message (open): hold includes time and bgp routingid; 2) survival message (keeplive): three times in hold time; 3) to keeplive: three times in total hold time; update message (update): changes made to the route in order to get the best possible BGPS; 4) a notice message (notification) stating that the Gateway Protocol (BGP) connection has been closed and that there was a routing problem; Idle for three bgp 1) the search of the route table, the router’s initialization of resources, the establishment of a TCP connection, and the listening to of the remote business gateway protocol 2) Connect: locate the routing table three handshake of TCP, demonstrating that TCP has successfully connected to the open send state; if this does not occur, go to the idle state in order to connect; 3) open sent: open the message that contains the information that is being sent; open confirm: 4) got open messages from each other on neighbor relations and consultation activities; The last state is the fifth and final state. Attribute of four bgp 1) Recognized attributes: recognized attributes all manufacturers bgp implementation must be able to identify the attributes, recognized as mandatory attribute must appear on all bgp routing updates; recognized the freedom to decide property can not appear in the bgp update; recognized the freedom to decide whether or not to include the property in the property list; 2) optional attribute: an attribute that is not recognized and is called as optional; optional attributes might be delivery or non-delivery; The BGPP property is described as follows: it is acknowledged as a necessary attribute; it is recognized as an attribute that respects the freedom to chose; it is an optional transfer property; it is an optional non transitive property. This is a well-known characteristic that allows you to skip the loop; 4) as route 5) the next hop attribute: skip to bgp is as, rather than the router, for another as network, the next hop is the way to the network, which takes the form of an entry ip address; 6) source: source is a property that is considered to be required. It is responsible for defining the path informationsource and specifying the path that is learnt by what means. the internal routing in the first as; the n igp command n egp: routing through egp was informed, in the form of bgp e, for example: weightdistribution; n incomplete: routing from an unknown source or by other methods such as: informed, redistribution, or static routing; n egp: routing through egp was informed; Seventh, the local priority: the local as to other as numerous path first pick a route, the default value for the local preference is one hundred, and the higher the number, the higher the priority; 8). community is a method for filtering into the station and the station route; community is optional; if the router does not recognize the transfer property, community, it will leave it to the next router to deal with; if the router is able to identify community, you will need to configure it in order to spread the community; otherwise, the community will be dropped. The ninth characteristic, known as the multi exit discriminators property, is used to indicate the preferred way into the as for the external neighbor. when the entrance with a plurality of time, as can use med to dynamically influence the other as how to choose to enter the path, med is the only attribute to a can influence the data into the as, med only in the ebgp transmission, the med value is smaller,the more optimal path; note: the effect of med into the as data stream, and the local priority effects of left as data stream. Is the router exports, while the local priority attribute refers to the as export. The weight of the attribute is in the router configuration, and it will not spread to any other router. Only local delivery is affected by it. The higher the value, the higher the priority, and the optimal path; the value range is from 0 to 65535, and the default weight path router advertisement has a value of 32768. 5 decision-making procedure for routing 1) favored employing the router with the maximum weight; (cisco special, only for the current router) Secondly, choose the local route with the greatest priority; (local priority for as internal) 3) the desired local router router: the local network, the ability to set the aggregated distribution or the Internet Group Protocol; (the current router announcement the next hop routing for 0.0.0.0) 4) choose the route that takes the shortest way; 5) The route of the source code for minimum (igp) cisco 3945, cisco 3925 pricing, and other articles of a similar kind have been published. Send a friend an email with this story! Get stories like this one sent to your inbox directly from the source! Get a free subscription right now!
I love myBlogd
Author
jackemails@gmail.com