| [1] What is SMUX? |
| SMUX is the snmp multiplexing protocol (RFC 1227). It can be |
| used by an snmp agent to query variables maintained by another |
| user-level process (e.g. GateD). |
| |
| [2] Why is it relevant to ucd-snmp? |
| The ucd-snmp agent needed a mechanism to query statistics from |
| GateD. GateD has traditionally supported this functionality via |
| SMUX. Hence SMUX was implemented within the ucd-snmp framework |
| to extract routing protocol statistics from GateD. The agent |
| can also communicate with other applications via SMUX. |
| |
| [3] What is GateD? |
| GateD is the 'Gateway Daemon' which implements a variety of routing |
| protocols on a variety of platforms (OSes). There is a public |
| version that is available free of charge. For more information |
| see http://www.gated.org. |
| |
| [4] What routing protocol MIBs does ucd-snmp SMUX support? |
| GateD supports up-to-date MIBS for all of the routing |
| protocols that it implements (RIP, BGP4, OSPF, etc.). The |
| agent will pass down queries it receives for any other MIB |
| registered by a SMUX peer. |
| |
| [5] Can SMUX extract statistics from other user-level processes? |
| Yes, the current implementation allows for the registration of |
| any MIB that might be registered by a SMUX peer. |
| |
| [6] How does it work? |
| Assuming 'snmpd' is already up and running, when the SMUX |
| peer (e.g. GateD) comes up, it identifies itself with an |
| oid identifier and string password, and registers any MIBs |
| it would like to implement. When 'snmpd' receives queries |
| for these MIBs, it passes these queries to the peer. |
| |
| [7] Who implemented SMUX for ucd-snmp? |
| SMUX was implemented by Rohit Dube. He had oodles of help from |
| ucd-snmp-coders (Dave, Niels, Wes, Simon, Felix, Leonti) and |
| gated-people (Acee, Feiyi, Larry, Sue). [If I missed somebody, sorry in |
| advance and do let me know]. Later, Nick Amato re-write the entire |
| SMUX package so the code today is mostly his. |
| |
| [8] How do I find out more about SMUX? |
| Read the RFC, the code and get in touch with ucd-snmp-coders@ece.ucdavis.edu |
