Atec Agilent-J2300E - Manual (Page 4)

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LAN over WAN, and LAN
(over WAN) over ATM
• TCP/IP • SUN
• AppleTalk • XNS
• Banyan • Cisco
• DECnet • 3Com
Encapsulated LAN data is automatically extracted and decoded by the Agilent
Advisor including complex encapsulated protocols. For unique encapsulation
schemes, the user may specify the offset as well. Nearly 300 decodes exist for
layer 3 and above; these are common to all underlying technologies (LAN, WAN
and ATM).
The Agilent Advisor provides an off-line LAN Expert Analysis tool. The off-line
LAN Expert Analysis allows the user to examine Ethernet, Fast Ethernet,
Gigabit Ethernet, ATM or WAN (HDLC or Frame Relay) encapsulated LAN
frames on an Agilent Advisor or personal PC without Agilent Advisor hardware.
The comprehensive set of protocol decodes include all of today’s popular
Protocol Stacks:
Commentators
Powerful “Commentators” follow state-based protocols and can provide
warnings and alerts when unusual message sequences are detected.
Real-time Filtering
The Agilent Advisor now offers real-time IP and WAN filtering at rates up to
155Mb/s. This allows the user to isolate and analyze LAN and Frame Relay
traffic taking place on an ATM circuit or LAN traffic taking place on a Frame
Relay circuit.
The real time filtering function gives users application-level, LAN-centric
troubleshooting on their ATM or Frame Relay network, thus allowing them to
observe specific traffic types for potential problems on the network. The user
can even filter by IP source and/or destination address. IP traffic encapsulated
in Frame Relay that is additionally encapsulated over ATM can also be analyzed.
This feature maximizes valuable buffer space for optimal data collection of
targeted LAN traffic since the filtering takes place before data capture.
In addition to capture filtering performed in hardware, the Agilent Advisor is
able to gather counts of events such as cells or frames within the defined
criteria of the filters. Powerful display (post-capture) filtering and search
functionality allows the user to drill down further for troubleshooting
purposes.
For more details concerning these features, refer to the corresponding
technical sections within this document.
• IBM/SNA • H.323 series, T.38
• Novell • SIP, MGCP,SGCP, MEGACO
• ISO • W-CDMA