CiscoGslbKeepaliveMethod

• Base type Enumeration

Defines the keepalive method. A keepalive is an interaction between GSLB device and another device using a commonly supported protocol. This defines the protocol to be used by the keepalive when monitoring an answer. For example a keepalive for a VIP answer can have icmp/tcp/httphead/kalap method to monitor the health of answer. (Note: The keepaliveTargetType is VIP, since the answer is associated with a VIP type answer.) 'other' : The value 'other' has been provided so that the MIB may still be valid while new protocols emerge and the MIB has not been updated to enumerate them. 'none' : This is to prevent the GSLB device from taking the online status and load into account. Thus, the resource is always assumed to be online. 'icmp' : Internet Control Message Protocol(ICMP) packets are sent to the VIP address (or a shared keepalive address) for an answer to determine the Online status indicating connectivity to network. 'tcp' : To determine the Online status a TCP connection to remote device is established by performing three-way handshake sequence. The connection is then terminated. 'httphead' : A HTTP HEAD connection is established, the online status of the resource is returned in form of an HTTP Response, then the connection is terminated. 'kalap' : A detailed query is sent to primary and an optional secondary address to determine the online status and load of each specified address. 'ns' : A query is sent to the NS address to determine its online status by means of its ability to respond the query for the domain. 'cra' : It is used when testing CRA answer that respond to DNS race requests as it keeps track to the time required for a packet to reach the CRA and return to the GSLB device. 'scriptedKal' : It uses SNMP get request to fetch the load information from the target device. It enables the GSLB device to use third party application for fetching the load information from target.