After the initial discovery and modeling of the topology objects for a specific routing protocol, Network Protocol Manager updates the status of the objects by continuously monitoring the devices through either SNMP or CLI polling. The results of the polling, in addition to the status updates extracted from SNMP traps and syslog messages (optional and applicable only to BGP and OSPF) and the status updates received from IP Availability Manager, serve as input to the Network Protocol Manager correlation analysis.
For SNMP polling, Network Protocol Manager uses an IPv4 SNMP poller, which sends SNMPv1, v2c, or v3 messages for use with IP version 4. Authentication and privacy protocol support for SNMPv3 identifies the Network Protocol Manager authentication and privacy protocol support for SNMPv3.
| Operation |
AuthProtocol |
PrivProtocol |
|||
|---|---|---|---|---|---|
| MD5 |
SHA-1 |
None |
DES-56 |
AES-128 |
|
| Discovery/monitoring |
x |
x |
|||
| x |
x |
||||
| x |
x |
||||
| x |
x |
||||
| x |
x |
||||
| x |
x |
||||
