Overview
The Point-to-point protocol (PPP) is a link layer protocol, which encapsulates other network layer protocols like IP for
transmission on synchronous (like T1/E1) and asynchronous communications lines. When transmitted over T1/E1 line, PPP
frames are based on HDLC frame structure. Two major features of PPP protocol are:
- Authentication
- Encapsulation of higher layer protocols
ML-PPP has wide application for access lines to Internet Service Providers (ISPs) and enterprises that need "single
pipes" greater than one T1 but less than 28 T1s. ML-PPP is similar to IMA (Inverse Multiplexing over ATM), in the sense
that larger bandwidth is derived by aggregating smaller physical channels. The protocol allows splitting, recombining,
and sequencing datagrams across multiple data links into a single logical pipe or bundle.
The Multi-Class extension to Multi-Link PPP allows a sender to fragment the packets of various priorities into multiple
classes of fragments, and allows high-priority packets to be sent between fragments of lower priorities.
GL’s flexible and versatile applications in T1E1 Analyzer allow complete PPP, MLPPP, & MC-MLPPP Analysis & Emulation.
The T1E1 Analyzers are available as powerful HD PCI cards as well as portable USB based units. For more details, please
visit the following links:
GL's Windows Client/Server software allows the user of T1/E1 analysis cards, the capability of remote operation,
automation, and multi-site connectivity. Server software can run multiple tasks simultaneously at the request of the Client
software.
Automated testing can be accomplished using client-server based PPP, MLPPP, & Multi-Channel (MC) MLPPP Emulation
and Analysis (MLPPPTerr) module. The application permits traffic generation and verification over PPP links and may be
accessed through a GUI or through command line scripts.
For more details on automated testing of MC-MLPPP using Client Server click here
Screen Shot of MC-MLPPP Emulator
The ML-PPP Analyzer provides useful analysis of the PPP protocols, which includes distribution of protocols, protocol
fields, frame lengths and frame status. The ML-PPP analyzer has the ability to decode PPP, MLPPP, and MC-MLPPP packets.
Today the PPP protocol standard finds wide use in synchronous connections between LANs, bridges, routers and other
intermediate devices.
GL's ML-PPP Analyzer can be used to capture a host of PPP protocols exchanged between the two nodes over T1/E1 link.
User can obtain detailed analysis of the protocol and can perform various statistics measurements. GL Communications
supports the following types of ML-PPP analyzers:
- Real-time ML-PPP Analyzer (Pre-requisites: GL's field proven E1 or T1 internal cards or USB Laptop E1 or T1 external
units, required licenses and Windows 2000/XP Operating System)
- Offline ML-PPP Analyzer(Pre-requisites: Hardware Dongle and Windows 2000/XP Operating System)
For more details on ML-PPP analyzer click here
Screen Shot of ML-PPP Analyzer
Bridge and Monitor Connections
Buyer's Guide:
Please Note: The XX in the Item No. refers to the hardware platform, listed at the bottom of the Buyer's
Guide, which the software will be running on. Therefore, XX can either be DPT, DPE, PCT, PCE, HDT, HDE, DLT, DLE or UTE
depending upon the hardware.
* Specifications and features subject to change without notice.
Back to Protocol Analysis Index Page
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