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Topic: Subnetwork Access Protocol


  
  SNAP: SubNetwork Access Protocol Overview (RFC 1042)
The SubNetwork Access Protocol (SNAP) is an a standard for the transmission of IP datagrams over IEEE 802 networks.
The Subnetwork Access Protocol is detailed in IETF RFC 1042.
EtherType - Specifies which protocol is encapsulated within the IEEE 802 network: IP = 2048, ARP = 2054.
www.javvin.com /protocolSNAP.html   (345 words)

  
  RFC 878 (rfc878) - ARPANET 1822L Host Access Protocol
This new host access protocol is known as the ARPANET 1822L (for Logical) Host Access Protocol, and is a successor to the current ARPANET 1822 Host Access Protocol, which is described in sections 3.3 and 3.4 of BBN Report 1822 [1].
For example, a connection-based host-to-host protocol may require that the same physical host port on a multi-homed host be used for all messages using that host-to-host connection, and the host does not wish to trust the IMP to always deliver messages using a destination name to the same host port.
This field is not automatically filled in by the IMP, as in the 1822 protocol, because the host may be known by several names and may wish - 31 - 1822L Host Access Protocol December 1983 RFC 878 to use a particular name as the source of this message.
www.faqs.org /rfcs/rfc878.html   (7624 words)

  
 Cisco Discovery Protocol - Wikipedia, the free encyclopedia
The Cisco Discovery Protocol (CDP) is a proprietary network protocol developed by Cisco Systems which runs on most Cisco equipment and is used to share information about other directly connected Cisco equipment such as the operating system version and IP address.
CDP can also be used for On-Demand Routing (ODR) which is a method of including routing information in CDP announcements so that dynamic routing protocols do not need to be used in simple networks.
By default, CDP announcements are sent every 60 seconds on interfaces which support Subnetwork Access Protocol (SNAP) headers including Ethernet, Frame Relay and ATM.
en.wikipedia.org /wiki/Cisco_Discovery_Protocol   (302 words)

  
 S
Protocol that provides a secure remote connection to a router through a Transmission Control Protocol (TCP) application.
Bridge protocol that uses the spanning-tree algorithm, enabling a learning bridge to dynamically work around loops in a network topology by creating a spanning tree.
Subnetworks are networks arbitrarily segmented by a network administrator in order to provide a multilevel, hierarchical routing structure while shielding the subnetwork from the addressing complexity of attached networks.
www.cisco.com /univercd/cc/td/doc/cisintwk/ita/s12.htm   (5766 words)

  
 RFC 802 (rfc802) - ARPANET 1822L Host Access Protocol
The new host access protocol is known as the ARPANET 1822L (for Logical) Host Access Protocol, and it represents an addition to the current ARPANET 1822 Host Access Protocol, which is described in sections 3.3 and 3.4 of BBN Report 1822 [1].
The main differences between the 1822 and 1822L protocols are the format of the leaders that are used to introduce messages between - 4 - RFC 802 Andrew G. Malis a host and an IMP, and the specification in those leaders of the source and/or destination host(s).
This field is not automatically filled in by the IMP, as in the 1822 protocol, because the host may be known by several names and may wish to use a particular name as the source of this message.
www.faqs.org /rfcs/rfc802.html   (6891 words)

  
 LAN Data Link Layer Protocols - CIF | Ethernet | FDDI | GARP | GMRP | GVRP | LLC | Multiprotocol over ATM | SNAP | SRP ...
In the 802.3 protocol, the value (46-1500 Dec) is the length of the inner protocol, which is the LLC encapsulated inner protocol.
Protocol exchanges take place between GARP participants by means of LLC Type 1 services, using the group MAC address and PDU format defined for the GARP application concerned.
The GARP Multicast Registration Protocol (GMRP) provides a mechanism that allows bridges and end stations to dynamically register group membership information with the MAC bridges attached to the same LAN segment and for that information to be disseminated across all bridges in the Bridged LAN that supports extended filtering services.
www.protocols.com /pbook/lan.htm   (1905 words)

  
 RFC 878 - ARPANET 1822L Host Access Protocol. A.G. Malis.
1822L Host Access Protocol December 1983 RFC 878 However, the IMP will attempt to notify the source host if a logically-addressed uncontrolled packet was mistakenly sent to a host that the source IMP thought was effective, but which turned out to be dead or non-effective at the destination IMP.
1822L Host Access Protocol December 1983 RFC 878 2.4 Establishing Host-IMP Communications When a host comes up on an IMP, or after there has been a break in the communications between the host and its IMP (see 1822(3.2)), the orderly flow of messages between the host and the IMP needs to be properly (re)established.
1822L Host Access Protocol December 1983 RFC 878 indicates that the name should not be effective, and one indicates that the name should be effective.
rfc.sunsite.dk /rfc/rfc878.html   (7666 words)

  
 CDP, Cisco Discovery Protocol
) is primarily used to obtain protocol addresses of neighboring devices and discover the platform of those devices.
Version-2 (CDPv2) is the most recent release of the protocol and provides more intelligent device tracking features.
VLAN Trunking Protocol (VTP) is a discovery technique deployed by switches where each switch advertises its management domain on its trunk ports, its configuration revision number, and its known VLANs and their specific parameters.
www.tallsoft.com /cdp.htm   (365 words)

  
 Bridge Routing (BR) ELS Messages
A frame has been received for the IPX protocol (in 802.3 encapsulation), but the IPX protocol is being administratively filtered by the bridge.
A frame has been recieved for the IEEE 802 Subnetwork Access Protocol (SNAP) Protocol Identifier (PID) which corresponds with an enabled protocol, but the destination MAC address is not registered in the bridge.
A source-routed frame has been recieved for the IEEE 802 Subnetwork Access Protocol (SNAP) Protocol Identifier (PID) which corresponds with an enabled protocol, but the destination MAC address is not registered in the bridge.
www.support.nsgdata.com /RouterDocs/lib56/sw_docs/els/brtrp.html   (2328 words)

  
 Glossary of Terms
The most recently accessed data from the disk (as well as adjacent sectors) is stored in a memory buffer.
The protocol determines the following: the type of error checking to be used; data compression method, if any; how the sending device will indicate that it has finished sending a message; and how the receiving device will indicate that it has received a message.
RAM (random access memory) is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor.
www.ami.com /support/glossary.cfm   (13219 words)

  
 Glossary - S   (Site not responding. Last check: 2007-10-18)
A protocol used by Novell* NetWare* devices to "advertise" themselves on the network by broadcasting their names, addresses, and current states.
The first is a multi-port, standalone remote access server that can be inserted between the remote access server and the modem.
Part of the IPX suite, SPX is a connection-oriented protocol (IPX is a connectionless protocol) and is used primarily for client and server communications.
www.intel.com /support/si/glossary/glosss.htm   (1303 words)

  
 Ethernet -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-18)
The original Xerox Version 1 Ethernet had a 16 bit length field, although the maximum length of a packet was 1500 bytes.
IP traffic can not be encapsulated in IEEE 802.2 LLC frames without SNAP because, although there is an LLC protocol type for IP, there is no LLC protocol type for (Alsatian artist and poet who was cofounder of Dadaism in Zurich; noted for abstract organic sculptures (1887-1966)) ARP.
Therefore, in general, (Click link for more info and facts about network protocol stack) network protocol stack ((computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory) software will work identically on most of the following types.
www.absoluteastronomy.com /encyclopedia/e/et/ethernet.htm   (4749 words)

  
 History of the Internet
During the 1980s, as the TCP/IP protocols (developed by Vint Cerf and others) replaced earlier protocols like NCP, the connections expanded to more colleges and even to a growing number of companies such as Digital Equipment Corporation and Hewlett-Packard who were participating in research projects.
However, the OSI protocols or "stack" that were specified as part of the project were a bloated mess.
An additional network protocol (HTTP: hypertext transfer protocol) was also invented for reduced overhead in transfers, but the true genius of the new system was that a new protocol was useful but not necessary; the URL and HTML system was backwards compatible with existing protocols like FTP and Gopher.
www.php-include.com /History-of-the-Internet.php   (1923 words)

  
 Bratton Enterprises - DSL Terms
Tag Distribution Protocol - Tag switching devices use the TDP to distribute, request, and release tag binding information for multiple Network-layer protocols.
X.25 defines the connections between a DTE and DCE with respect to remote terminal access and computer communications in a PDN.
Network Control Protocol - A family of protocols for establishing and configuring different Network-layer protocols.
www.bratton-enterprises.com /terms.shtml   (1523 words)

  
 [No title]
The first method allows multiplexing of multiple protocols over a single ATM virtual connection whereas the second method assumes that each protocol is carried over a separate ATM virtual connection.
Token passing is a communications network access method that uses a continuously repeating frame (the token) that is transmitted onto the network by the controlling computer.
The protocol insures that one and only one of the routers is forwarding packets on behalf of the virtual router.
www.corpnetworking.com /uploads/Protocol_decodes-4.7_2.xls   (1428 words)

  
 Ethernet   (Site not responding. Last check: 2007-10-18)
It defines wiring and signaling for the physical layer, and frame formats and protocolss for the media access control (MAC)/data link layer of the OSI model.
Control mechanisms like spanning-tree protocol enable a collection of bridges to work together in coordination.
There is a classic series of Usenet postings by Novell's Don Provan that have found their way into numerous FAQs and are widely considered the definitive answer to the Novell Frame Type jungle.
hallencyclopedia.com /Ethernet   (4108 words)

  
 [No title]
Subnetwork Access Protocol (SNAP) and source routing headers (if used on the media) are not included in this value.
The actual value used will be the minimum of the value specified with this parameter and the size reported by the media driver.
The default is the size reported by the media driver; an Ethernet network defaults to 1500 bytes and a Point-to-Point (PPP) Protocol dial-up connection defaults to 576 bytes." Fragmentation will occur if a packet is sent across a Network that has a MTU smaller than the packet's frame length.
www.geocities.com /a3a17013/tutorials/cabletweakdefinitions.txt   (893 words)

  
 Reference for Enterprise OS Software
The subnetwork number for a service node or a router is always 0x0001.
It specifies a protocol identifier to be included in all outgoing packets.
When a packet reaches its destination, the destination router verifies this protocol identifier against its own protocol ID. If they match, the incoming packet is accepted.
infodeli.3com.com /infodeli/tools/bridrout/u_guides/html/eos1111/family/ref/vip.htm   (1609 words)

  
 RFC 1142 - OSI IS-IS Intra-domain Routing Protocol. D. Oran, Ed..
This Protocol is positioned with respect to other related standards by the layers defined in the ISO 7498 and by the structure defined in the ISO 8648.
All subnetwork types are treated by the Subnetwork Inde pendent functions as though they were connectionless subnetworks, using the Subnetwork Dependent Conver gence functions of ISO 8473 where necessary to provide a connectionless subnetwork service.
On broadcast subnetworks, this class of failure shall be de tected by the designated IS, which has the responsibility to ascertain the set of Intermediate systems that can all com municate on the subnetwork.
sunsite.dk /RFC/rfc/rfc1142.html   (17704 words)

  
 [No title]
Ethernet and IEEE 802.3 (CSMA/CD, 10 Mbps) Carrier Sense (listen before talk) Multiple Access (party line telephone) with Collision Detection (listen while talk, stop talking and wait on collsion) 1.
Ethernet packet on 802.3 CSMA LAN using SubNetwork Access Protocol (SNAP) 1.
access control byte - PPPTMRRR, where PPP are priority bits, T is the token bit, M is the monitor bit to kill endless loops, and RRR are the reservation bits (highest priority waiting to be transmitted).
astro.temple.edu /~stafford/cis320sp03/nchap5/ethernet.txt   (2408 words)

  
 Cisco Discovery Protocol::
CDP is a media and protocol independent protocol that runs on all Cisco-manufactured equipment including routers, bridges, access and communication servers, and switches.
CDP allows network management applications to discover Cisco devices that are neighbors of already known devices, in particular, neighbors running lower-layer, transparent protocols.
The protocol and port number of the port on the current device.
netcert.tripod.com /ccna/switches/cdp.html   (788 words)

  
 Glossary - I   (Site not responding. Last check: 2007-10-18)
Part of the TCP/IP suite, a protocol capable of handling several types of error conditions and then reporting errors back to the original source.
See SNAP (Subnetwork Access Protocol), Ethernet II, and IEEE 802.3.
The 32-bit station Internet Protocol (IP) address by which a specific device on the network host can be found.
support.intel.com /support/si/glossary/glossi.htm   (716 words)

  
 Linux Network Administration
I am leaning to a second-floor location towards centre of building because of wireless access points in high ceiling of manufacturing floor.
Building a wireless access point with Linux (Linux Devices)- When the ability to write and modify your own management software is the main objective, a custom-built wireless access point is the way to go.
Access Point SNMP Utils for Linux (Roman Festchook)- This product is a set of utils to configure and monitor Wireless Access Points under Linux.
linux.ittoolbox.com /nav/t.asp?t=311&p=311&h1=311   (3989 words)

  
 Siemens Communications Lexicon - automatic baud rate detection (ABR)
SNAP is an Data Link Layer IP protocol, and a IEEE 802.2 LLC component.
It specifies a standard method for encapsulating IP datagrams and ARP protocol messages in IEEE networks.
The SNAP MAC frame has a five byte Protocol Identifier (PI) which distinguishes it from the 802.3 frame.
networks.siemens.com /communications/lexicon/2/f003412.htm   (130 words)

  
 MC MCSE: NWLink IPX/SPX/NetBIOS Compatible Transport Protocol
Windows clients can be configured to use NWLink to access client and server applications running on Novell NetWare servers and / or on intranets where IPX/SPX or NWLink is the protocol of choice.
By default, you must be a member of the Administrators group to install protocols on any given system.
If you have connectivity issues with the newly installed protocol, or even the currently installed ones, you're not going to be able to be sure where to start troubleshooting if you haven't rebooted the system.
www.mcmcse.com /windows_xp/guides/nwlink.shtml   (1507 words)

  
 [20040901] INTERNET ARCHITECTURE: AN INTRODUCTION TO IP PROTOCOLS   (Site not responding. Last check: 2007-10-18)
Internet Architecture: An Introduction to IP Protocols is an expert, application-focused guide to the key Internet protocols networking professionals need to master.
For networking professionals, this is the most relevant, authoritative guide to Internet protocols available: today's and tomorrow's.
The Point-to-Point Protocol (PPP) and The Layer 2 Tunneling Protocol (L2TP).
lammle.ticmundi.com /0-13-019906-0.html   (287 words)

  
 Cisco Discovery Protocol   (Site not responding. Last check: 2007-10-18)
The Cisco Discovery Protocol (CDP) is a proprietary, media- and protocol-independent protocol that runs on all Cisco manufactured equipment, including routers, bridges, access servers, and switches.
CDP can also be used to obtain the network address of the interface of an attached device.
CDP runs on all media that support Subnetwork Access Protocol (SNAP), LAN, Frame Relay, and ATM media.
www.secretwall.com /globe/CCNA/content/module1/4d_cdp.htm   (536 words)

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