Discovery agents on other protocols

Network Manager provides agents that discover devices that use other protocols than ones previously described.

Before enabling these agents, configure SNMP access and the SNMP Helper.

Agent name Function

AlteonStp

This is a Spanning Tree Protocol discovery agent for Alteon switches that support the dot1dStp section of the BRIDGE-MIB.

BrocadeFDPSnmp

The BrocadeFDPSnmp agent provides Layer 2 links using the Foundry Discovery Protocol (FDP). The agent establishes links between Brocade devices. By using the FOUNDRY-SN-ROOT-MIB and IF-MIB MIB files, the agent can discover the neighboring devices and store minimal information about the local device and its corresponding neighbor. This agent uses the index from the FDP network layer address of the device to find complete information that links to the neighboring devices.

CDP

The CDP agent understands the protocol used among Cisco communication devices. Using CDP, Cisco devices can discover their nearest neighbors and store minimal information about them.

FddiDefault

The FddiDefault agent discovers any device that supports the standard FDDI MIB. When an FDDI device is interrogated, information relating to the interfaces of that device and its upstream and downstream neighbors is returned. The FddiLayer stitcher uses this and all other FDDI agents to determine the FDDI ring topology.

FddiCiscoConc

The FddiCiscoConc agent discovers Cisco Concentrator FDDI devices. Cisco concentrators know the full connectivity of every FDDI ring that passes though them, as opposed to just their upstream and downstream neighbours. Hence the FddiLayer stitcher gives the topology information returned by this agent precedence over that found by FddiDefault.

IEEE8023LAG

V4.2 Fix Pack 6: The IEEE8023LAG agent discovers the LAG (Link Aggregation Group) Link entities and physical ports associated with the LAG between two network devices. The agent discovers information from Cisco Carrier Routing System (CRS) LAG networks.

LLDP

The LLDP agent discovers layer 2 connectivity between devices that support the LLDP MIB and have Link Layer Discovery Protocol (LLDP) enabled.

The LLDP agent use data from the LLDP MIB that is indexed by lldpRemLocalPortNum. This variable indicates which ifIndex or port a particular LLDP connection exists on. The LLDP agent supports devices where lldpRemLocalPortNum refers to the ifIndex on the device: typically, Cisco devices.

The LLDP agent checks if the device supports the Extended-LLDP-MIB. If it does, the agent retrieves the mapping between lldpRemLocalPortNum and ifIndex. If the device does not support the Extended-LLDP-MIB, lldpRemLocalPortNum is assumed to be the ifIndex. Enable the LLDP agent so that Network Manager is able to find LLDP connectivity on devices that have different implementations of lldpRemLocalPortNum.

SONMP

The SONMP agent uses the SynOptics Network Management Protocol, the protocol used between Nortel communications devices. The SONMP agent begins with the address of a known Nortel device and uses SONMP to discover location, containment, address, and connection information from connected, or neighboring, Nortel devices.

StandardNETCONF

The StandardNETCONF agent retrieves interface details from devices discovered by the Ping Finder, if they support standard YANG models and NETCONF.

Before running this agent:

  1. Enable the Ping Finder.
  2. Set GetNETCONFData to 1 in the Details.agnt file.
  3. Configure the NETCONF device credentials in the JavaHelperAccessCredentials.cfg file.

StandardSTP

The StandardSTP agent discovers STP connectivity data on any STP-enabled switch that supports the dot1dSTP section of the BRIDGE-MIB. You should run this agent in addition to any other necessary switch agents in order to discover STP backup (blocking) connections.

The STP switch discovery method has the following advantages over other switch-based discovery methods:

  • Hidden links: STP backup (blocking) connections are discovered.
  • Speed: the agent completes in Phase 1; no pinging is required.

Note : The STP agent only shows connections between STP enabled switches, that is, it ignores connections to nodes, non-switch devices, and non-STP enabled switches.

This agent will not discover multiple STP instances, VLANs, or Virtual Routers.