ccna network simulator lite editions

ccna network simulator lite editions.Version (1 byte): The version number of BGP has a value of 4 for BGP4.My Autonomous System (2 bytes): the AS number of the neighbor establishment initiator. Used to determine whether the parties are IBGP neighbors or EBGP neighbors.Keepalive time (2 bytes): is the maximum time the device is allowed to wait before receiving a Keepalive packet. If no Keepalive packet is received from the peer within this time, the BGP connection is considered broken: if this time is 0 seconds, no Keepalive packet is sent, if not 0, it is at least 3 seconds. When establishing a peer relationship, both ends negotiate the keepalive time, using the keepalive time of the smaller end of the Open packet as the keepalive time for both ends. The default hold time for Cisco is 180.362.Cisco Networking Lab CCNA Lab Guide (Release 2)Seconds. BGP Identifier (4 bytes): The BGP router ID of the sender. in the form of an IP address. BGP Router.1D is determined in the same way as the OSPF router ID is determined.Optional parameter length (1 byte): the length of the optional parameter. A value of 0 indicates that there are no optional parameters.Optional Parameters: Variable length for features such as BGP authentication or multiprotocol extensions. Includes a list of optional parameters, each identified by a 1-byte type field, a 1-byte length field, and a variable length field containing the value of the parameter, i.e., the TLV method. 3.3. Update packetsUpdate packets are used to exchange routing information between peers. It can either publish reachable routing information or undo unreachable routing information. The format of the Update packet is shown in Figure 19.9, and the meaning of each field is described below.