Atec Agilent-J2300E - Manual (Page 51)

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PPP (Point to Point Protocol)
X.25 X.25/HDLC Decodes
The Advisor WAN provides real-time decoding capability for all three layers of
the X.25 protocol according to ITU-T X.25-1988. The following fields are
decoded and displayed:
• LAPB address, frame type, P/F, N(s), N(r), and FCS
• X.25 GFI, LCN, packet type, P(s), and P(r)
• called and calling addresses
• facility fields
• diagnostic, reset, and restart cause codes and explanations
X.25 LCN Statistics
Displays first 32 LCNs (all data stored to capture buffer).
Display for each individual LCN:
• Graph of instantaneous throughput
• Number of frames in pie chart graphic.
• Packet length distribution as a percent and total count.
X.25 Test Scripts
• DCE and DTE network cell
• DCE and DTE subscriber call
• Traffic generation
• X.25 Call Placement Scripts
- Mode:
* Simulate DTE or DCE
- Select:
* Network call or subscriber call
* logical channel number
* calling and called number
- Emulation:
* Level 2 and partial Level 3
The Advisor WAN provides decode capability for synchronous, asynchronous,
and multi-link PPP.
The maximum speed for asynchronous PPP is 115.2 kb/s. The following fields
are decoded and displayed:
• HDLC header-address, frame type and FCS
• PPP header-protocol ID and CP code
• LCP
• NCP/NSCP, including IPCP, IPXCP, CCP, NetBIOS CP
• PAP
• CHAP
• Multi-link PPP dual channel monitor and decodes
• TCP tunneling
• Top Talkers
• LAN protocol distribution
• Van Jacobsen compression