Paradyne 8540, 8546 manual Network Problems 3 Action, Monitoring the Hotwire DSL System

Diagnostics and Troubleshooting

Table 5-5. Network Problems (3 of 3)

Problem	Action
Intranetworking	1.	Verify that the internetworking network cables meet IEEE standards
communication		for local Ethernet networks.
problems.	2.	Check cable connections to DSL chassis and other devices in the
		network.
	3.	Determine whether or not your system is the only one in the
		network with a problem.
Performance is	1.	Verify that there are enough buffers on the System Info screen and
slow.		reset the system (see Monitoring →		Card Status (B-A)in Chapter 4,
		Monitoring the Hotwire DSL System).
	2.	Check the Ethernet Statistics screen for excessive Cycle
		Redundancy Check (CRC) errors, a bad connection, or a bad cable
		(see Monitoring → Physical Layer (B-B)in Chapter 4, Monitoring
		the Hotwire DSL System).
PPP circuit is	1.	Verify that the DSL link is up.
forwarding no	2.	Go to: Configuration →	Interface →	Control (A-C-C) and monitor the
traffic.
		state of the system.
	3.	If the IP state is up and the local and peer IP addresses are
		displayed, IPCP is completed.
	4.	If the IP state is missing from the screen, check that the port has an
		IP address assigned.
	5.	If the IP state is missing from the screen, check that the port has an
		IP address assigned.
Proxy ARP not	1.	Reconfigure DSL cards affected.
properly set for	2.	Set Proxy ARP only for Hotwire 5446 RTU, not entire subnet.
Hotwire 5446
RTU.	3.	Using structured subnetting, verify proper subnetting was utilized.
Stations cannot	1.	Check to see that IP addresses have been configured correctly
communicate		(see Who Am I screen in the Hotwire Management
through the		Communications Controller User’s Guide, and Configuration →
router.		Interfaces (A-C)in Chapter 3, RADSL Card Configuration).
Incorrect IP	2.	Go to: Configuration →	Interface →	Control (A-C-C)and monitor the
address.
		state of the system for e1a Bridge Up (forwarding).
Incorrect
Subnet Mask.
System does	1.	Configure new DSL cards from MCC screen.
not recognize	2.	Restart s1b interface (see Configuration → DSL Cards (A-G)in
new DSL cards
		Chapter 3, RADSL Card Configuration).
with new
addresses	3.	Reset DSL card from the MCC screen (see Configuration → DSL
(Addresses not		Cards (A-G)in Chapter 3, RADSL Card Configuration).
preconfigured	4.	Pull the card out and push it back in.
on MCC card).
TFTP server	1.	Before uploading configurations, create a dummy file and give it
denies write		global Read-Write permissions.
permission	2.	Configure TFTP host to have Write permissions is specified
(Message is
		directory.
TFTP recv
failure).

8000-A2-GB20-50 April 2000 5-13