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Topic: SMUX

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	W3C WD: SMUX Protocol Specification
		SMUX is a session management protocol separating the underlying transport from the upper level application protocols.
		A SMUX header with the long_length bit set must use the 32 bits following the SMUX header (the long_fragment_size field) for the value of the fragment_size field, for whatever purpose the fragment_size field is being used for.
		One of the major design goals of SMUX is to allow callbacks to objects in the process that initiated the transport TCP connection without requiring additional TCP connections (with the overhead in both machine resources and time that this would cause, or the problems with TCP connection establishment through firewalls).
	www.w3.org /TR/WD-mux (5840 words)

	[No title]
		Obviously, the SMUX peer which employs the cache-ahead model acts as a "firewall" for those user-processes which actually implement the managed objects in the given MIB module.
		When either the SNMP agent or the SMUX peer wishes to release the SMUX association, the ClosePDU is issued, the connection is closed, and all subtree registrations for that association are released.
		As such, if a SMUX peer wishes to register a subtree at a priority which is already taken, the SNMP agent repeatedly increments the integer value until an unused priority is found.
	www.aradial.com /rfc/rfc1227.txt (1913 words)

	SMUX peers
		The SMUX peer is said to be exporting a MIB module containing those objects and is responsible for SNMP operations on all objects within that MIB module.
		In the role of an SMUX peer, the GateD process acts on the requests from the agent and sends responses to the agent.
		For an agent to be aware of an SMUX peer and to know what MIB modules the peer is exporting, an SMUX peer, when it starts running, must register with the local SNMP agent and export all the MIB modules it plans to support.
	osr507doc.sco.com /en/NetAdminG/snmpC.smux.html (704 words)

	W3C WD: SMUX Protocol Specification
		Therefore, for SMUX to have reasonably low overhead credits should be handed out in some significant multiple (4 or more times larger) than the ~3000 bytes represented by two packets on an ether net.
		One of the major design goals of SMUX is to allow callbacks to objects in the process that initiated the transport connection without requiring a second transport connections (with the overhead in both machine resources and time that this would cause).
		We want to SMUX multiple protocols simultaneously over the same transport connection, so we need to know what protocol is in use with each session, so the demultipexor can hand the data to the right person.
	www.w3.org /Protocols/MUX/WD-mux-971203.html (5847 words)

	Setting Up the BEA SNMP Agent Integrator
		Master agents that "speak" SMUX protocol to subagents are typically able to communicate only with SMUX-compliant subagents, and cannot coexist with non-SMUX SNMP agents running on the same host.
		In its communication with SMUX subagents (and DPI master agents and monolithic SNMP agents), the BEA SNMP Agent Integrator acts as a proxy for the SNMP manager.
		By default, a SMUX subagent automatically indicates the section of the OID tree for which it is responsible when it registers with the BEA SNMP Agent Integrator master agent.
	e-docs.bea.com /snmpagnt/admingd/4agintg.htm (1782 words)

	SMUX Peers (Site not responding. Last check: 2007-10-07)
		The SMUX Peer, or SNMP Multiplexer Peer, is an "understudy" to the SNMP agent on the device.
		When a SMUX request comes in the agent checks the configuration file to determine if there is a peer capable of responding to the query.
		If so the agent passes on the request to the peer and awaits a return of information from the SMUX peer (mainly if the operation was successful or not).
	www.pucp.edu.pe /inf305/topicos/smux.html (147 words)

	Performance Toolbox Version 2 and 3 Guide and Reference - SNMP Multiplex Interface
		The remainder of this topic describes how SMUX is used by the xmservd daemon to expand the set of variables available from the SNMP agent.
		As the structure is exported from xmservd through the SMUX interface it is converted to an MIB table.
		Where the SPMI retrieves all statistics for one disk before proceeding to the next disk, SMUX traverses the structure by reading one statistic for all disks before proceeding to the next statistic.
	publib16.boulder.ibm.com /pseries/en_US/perftool/prfusrgd/ch13body.htm (1939 words)

	Files Reference - snmpd.conf File
		The smux entry specifies configuration information for SMUX associations between the snmpd agent and SMUX peer clients.
		Fields to the right of the minimum entry are optional, with the limitation that no fields to the left of a specified field are omitted.
		In the case of an invalid smux entry, the snmpd agent logs an EXCEPTIONS message if logging is enabled and the snmpd command ignores that smux entry.
	publibn.boulder.ibm.com /doc_link/Ja_JP/a_doc_lib/files/aixfiles/snmpd.conf.htm (3155 words)

	Appendix E: HACMP for AIX and SNMP Utilities (Site not responding. Last check: 2007-10-07)
		SNMP can be extended through the use of the SNMP Multiplexing protocol (the SMUX protocol) to include enterprise-specific MIBs that contain information relating to a discrete environment or application.
		A management agent (a SMUX peer daemon) retrieves and maintains information about the objects defined in its MIB, and passes this information on to a specialized network monitor or network management station.
		The trapgend daemon is the SMUX peer agent provided with the NetView for AIX program that converts alertable errors to SNMP traps.
	www.tu-darmstadt.de /hrz/unix/ibm/documentation/HACMP/install/appe.html (1362 words)

	Restarting Admin Server produces Error = SMUX connection refused
		Error = SMUX connection refused Solution: 1) Unless you have the very lastest edition of SunNet Manager, you cannot use Sun's Master Agent.
		[SMUX defaults to 199] b) Make sure they're using TCP instead of UDP.
		Brief explanation of what is happening: Currently SNMP Subagent runs as an Admin Server thread and it uses SMUX to talk to a Master Agent.
	help.netscape.com /kb/corporate/19960919-2.html (313 words)

	RFC1227
		However, the SMUX peer, may itself be a user-process which employs the cache-ahead model with other user-processes.
		A simple two-phase commit protocol is used between the SNMP agent and the SMUX peers.
		Each SMUX PDU is serialized using the Basic Encoding Rules [4] and sent on the TCP.
	www.scit.wlv.ac.uk /rfc/rfc12xx/RFC1227.html (2428 words)

	Commands Reference, Volume 2, d - h - dpid2 Daemon
		It will connect with the TCP port 199 of the SMUX server which is part of snmpd agent.
		It listens on an arbitrary TCP port for a connection request from a DPI2 sub-agent.
		Specify smux peer entry in snmpd v1 agent configuration file.
	publib16.boulder.ibm.com /pseries/fr_FR/cmds/aixcmds2/dpid2.htm (491 words)

	RFC1227 (Site not responding. Last check: 2007-10-07)
		RFC 1227 SMUX May 1991 network services, such as routing protocols, communication between the SNMP agent and other processes is problematic.
		The SMUX protocol is simple: the SNMP agent listens for incoming connections.
		When the SMUX peer wishes to issue a trap, it issues an SNMP Trap- PDU.
	rfc.net /rfc1227.html (1997 words)

	Packaging your SMUX peer (Site not responding. Last check: 2007-10-07)
		Once you have finished testing your SMUX peer and are satisfied that it is of high quality, it is ready for shipment to customers.
		A typical package would include a disk containing the device driver, the SMUX peer daemon (foosmuxd), and the MIB module (foosmuxd.my).
		It is important to include your MIB module: it can be read in by many kinds of management software, such that the network management workstation can more effectively control your device.
	ou800doc.caldera.com /SDK_netapi/smuxT.pacpeer.html (106 words)

	RFC relevance of description
		SMUX association, the ClosePDU is issued, the connection is closed
		Multiple SMUX peers may register the same subtree.
		The MIB objects for the SMUX are implemented by the local SNMP agent
	spectrum-worldresearch.com /relevance/projects/rfc/protocol/register/description/registration/priority/mandatory/rfc1227.txt.description.html (1449 words)

	Appendix A: HACMP for AIX Messages (Site not responding. Last check: 2007-10-07)
		The Cluster Lock Manager or the Cluster SMUX Peer attempted to connect to the deadman port and failed.
		The Cluster Manager was unable to listen to either the Cluster Lock Manager socket (clm_lkm) or the Cluster SMUX Peer socket (clm_smux).
		The Cluster Manager was unable to bind to the Cluster Lock Manager port (clm_lkm) or the Cluster SMUX Peer daemon (clm_smux).
	www.tu-darmstadt.de /hrz/unix/ibm/documentation/HACMP/trouble/appa.html (4738 words)

	snmpd.peers(SFF) (Site not responding. Last check: 2007-10-07)
		The file /etc/snmpd.peers contains information which the SNMP agent/server daemon, snmpd(ADMN), uses to authenticate requests from SMUX peers to register subtrees with the SNMP agent/server.
		in dot notation that represents object-identifier of the SMUX peer.
		Legal values are 0 to (2^31)-1, with a lower number having a higher priority.
	osr507doc.sco.com /en/man/html.SFF/snmpd.peers.SFF.html (193 words)

	Terminating foosmuxd's SMUX association (Site not responding. Last check: 2007-10-07)
		The reference SMUX peer invokes the routine smux_register when it is ready to terminate the SMUX association with the local agent.
		void close_conn() { /* * - De-register the subtrees that were previously registered * - Then gracefully close the smux connection * - and then the tcp connection itself.
		See ``Terminating an SMUX association'' for an explanation of these error codes.
	docsrv.sco.com /SDK_netapi/smuxC.endfoo.html (195 words)

	Implementing an SMUX peer (Site not responding. Last check: 2007-10-07)
		In the previous section, we described the interaction between a management station, an SNMP agent and an SMUX peer, and discussed how the SMUX protocol works.
		If you are developing your own peer, you should replace all occurrences of the string ``foo'' with your company name or some string which uniquely describes your peer.
		If you are writing your own SMUX peer you will need to modify this file to refer to your files instead of the ``foo'' files.
	osr5doc.ca.caldera.com:457 /netguide/smuxN.implem.html (364 words)

	Chapter 10 Using SNMP to Monitor Servers
		The native agent is running, SMUX is not supported, and the system does not need to continue using the native agent.
		The native agent is running, SMUX is not supported, and the system needs to continue using the native agent.
		Restart the native agent using a port number that is different from the master agent's port number.
	docs.sun.com /source/817-7612/snmp.html (2782 words)

	Messages Reference
		Explanation: The SP SNMP proxy subagent called the specified SMUX function, which returned the indicated error.
		Explanation: The SP SNMP proxy subagent called the indicated SMUX function, which returned an error code with the indicated result.
		User Response: Ensure that there is a SMUX entry for the sp_configd daemon in the specified file and start the SP SNMP proxy subagent again.
	www.umiacs.umd.edu /~jhu/DOCS/SP/docs/ssp/msgs/spm3mst49.html (955 words)

	SMUX configuration - Untitled (Site not responding. Last check: 2007-10-07)
		To enable SMUX protocol support, Quagga must have been build with the
		A separate connection has then to be established between between the SNMP agent (snmpd) and each of the Quagga daemons.
		Be warned that the current version (5.1.1) of the Net-SNMP daemon writes a line for every SNMP connect to the syslog which can lead to enormous log file sizes.
	www.quagga.net /docs/docs-multi/SMUX-configuration.html (263 words)

	The Simple Times, Volume 4, Number 2, April, 1996
		Section 3.1.4 of the SMUX specification (RFC 1227) says that the SNMP agent should process each varbind in an incoming request sequentially, and block when a SMUX peer is contacted.
		Having briefly examined SMUX and gained an appreciation of some of the basic features (and problems) of extensible agents, we can step back slightly in time to 1989 and examine another early extensible agent protocol, the SNMP Distributed Protocol Interface (DPI) version 1.0, which was specified in 1991 as RFC 1228.
		Again as with SMUX, the SNMP agent was responsible for the interface with the management application, while the subagents were responsible for different subtrees of managed objects.
	www.simple-times.org /pub/simple-times/issues/4-2.html (12495 words)

	GNU Zebra -- SNMP Support (Site not responding. Last check: 2007-10-07)
		Zebra uses SMUX protocol (RFC1227) for making communication with SNMP agent.
		There are several SNMP agent which support SMUX.
		This means SMUX client connect under MIB 1.3.6.1.6.3.1 with password test.
	dan.sibiu.rdsnet.ro /docs/routere/zebra/SNMPSupport.html (306 words)

	[No title] (Site not responding. Last check: 2007-10-07)
		I can't find anything in the documentation, other than that smux is "historic"?
		feinorgh: make sure you specify smux as a module when you configure...
		I got it working now, after a long and ardous hassle with an Adaptec smux subagent, which had no documentation
	net-snmp.sourceforge.net /support/irc/net-snmp.log.2002-12-12.html (786 words)

	Chapter 8: Configuring the Simple Network Management Protocol (SNMP) (Site not responding. Last check: 2007-10-07)
		The last item, SMUX reserved classes, allows you to specify those SMUX MIB classes that may only be managed by the local agent.
		This information is needed only to enable the agent to communicate with a SMUX peer that exports a specific MIB module.
		The agent uses the priority value to determine which SMUX peer to consult when more than one peer registers the same subtree.
	hem.passagen.se /danilo96/unix/razno/snmp-BOOKCHAPTER-8.html (6923 words)

	[No title]
		Icon:paper.gif URL:/doc_link/en_US/a_doc_lib/libs/commtrf2/getsmuxEntrybyname.htm 2 getsmuxEntrybyidentity Extra:Retrieves SNMP multiplexing (SMUX) peer entries from the /etc/snmpd.peers file or the local snmpd.peers file.
		Icon:paper.gif URL:/doc_link/en_US/a_doc_lib/libs/commtrf2/smux_error.htm 2 smux_free_tree Extra:Frees the object tree when a smux tree is unregistered.
		Icon:paper.gif URL:/doc_link/en_US/a_doc_lib/libs/commtrf2/smux_free_tree.htm 2 smux_init Extra:Initiates the transmission control protocol (TCP) socket that the SNMP multiplexing (SMUX) agent uses and clears the basic SMUX data structures.
	www.ncsa.uiuc.edu /UserInfo/Resources/Hardware/IBMp690/IBM/usr/share/man/info/en_US/a_doc_lib/libs/commtrf2/commtrf2.Books.vdf (3650 words)

	List of SNMP Agent Programming References
		Defines the ASN.1 definitions for a set of MIB variables for memory buffer (mbuf) statistics, SNMP multiplexing (SMUX) peer information, and various other information.
		Frees the object tree when an SMUX tree is unregistered.
		Initiates the Transmission Control Protocol (TCP) socket that the SMUX agent uses and clears the basic SMUX data structures.
	www.unet.univie.ac.at /aix/aixprggd/progcomc/snmp_ref.htm (505 words)

	Global Incident Analysis Center: Detects Analyzed 8/14/00 (Site not responding. Last check: 2007-10-07)
		it's new to me. It appears to be a remote exploit of an rpc.statd vulnerability posted by RedHat on July 17, 2000 and updated on July 21, 2000, followed by installation of a backdoor on the smux (port 199) port.
		I certainly haven't seen the smux port used as backdoor before.
		smux stream tcp nowait root /bin/sh /bin/sh -i
	www.sans.org /y2k/081400.htm (1939 words)

	... Misty With Optimism ...
		So far I'm quite touched that my SMUX OG are onz abt going for the walkathon to support me on Sun.
		Such unfair things happened to our group so many times that Yujian, a snr, a SMUX crew, actually empathised with us and told us that we'r his fav group.
		I'm meeting her on behalf of my parents for this parent-tcher meeting since I can better influence my sis in her studies.
	mistyoptimism.blogspot.com (2674 words)

	LinuxQuestions.org - 199/tcp open smux - where Linux users come for help (Site not responding. Last check: 2007-10-07)
		LinuxQuestions.org - 199/tcp open smux - where Linux users come for help
		LinuxQuestions.org > Forums > Linux - Newbie > 199/tcp open smux
		One answer is "smux" - a protocol, and an API...
	www.linuxquestions.org /questions/showthread.php?postid=870543 (234 words)

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