Nortel SR1001, Руководство по установке, Страница: 63 / 82

51
SR1001 Installation Guide
Version 8.3.5
Diagnostics Tips
The information in the following tables may help to isolate or resolve certain Secure Router
problems.
General Symptoms
The following table provides general diagnostics information that applies the SR1001.
Table 15 Common Symptoms and Actions
Symptom Cause Action
Power LED does not
illuminate with power
applied. No power is applied. 1 Verify that the AC power cord is functional.
2 Make sure the power supply is working properly.
3 Verify that the DC power cord is functional.
Power LED is illuminated
green, but the terminal or
workstation connected to the
Secure Router Console port
does not display a CLI
command prompt or other
text. The connecting terminal
is faulty or not
configured properly, the
interface cable is faulty,
or the Secure Router
Console port is faulty. 1 Verify that the interface cable is connected to the
console port and that the cable is properly assembled.
See Table 24 on page 58 for information about the
console cable.
2 Make sure the terminal is powered up.
Ethernet LINK/ACT LED is
not illuminated or flashing. The Ethernet LAN is not
active or the LAN cable
is faulty. 1 Make sure the Ethernet LAN cable is properly
connected between the hub or switch and the SR1001.
2 If you are using a non-Nortel LAN cable, refer to
Table 25 on page 59 to check the cable pinouts.
3 Make sure both the router and the adjacent LAN nodes
are powered on.
Ping test fails. The Ethernet LAN is not
working, the destination
host is not responding,
or the LAN cable(s) are
faulty. 1 Make sure the Ethernet LAN cable is properly
connected between the hub or switch and the Nortel
router.
2 Make sure cables are properly connected between the
service provider’s switch, hub, or LAN and the Nortel
router.
3 If you are using a non-Nortel LAN cable, refer to
Table 25 on page 59 to check the cable pinouts.
4 Verify that the LAN is properly configured at the
command line. Also, check IP addresses, subnetting,
and routing configurations.
5 Use the display arp command for target addresses.
6 If excessive collisions exist on the LAN, switch to a
less congested LAN segment.
WAN Status LED is not
illuminated. The link is not in service Enable the link using the appropriate derivative of the
configure module t1 enable command.
WAN Status LED is red. The link is faulty. (The
Secure Router has
detected an abnormal
incoming signal.) If a LOS (loss of signal) alarm is present:
1 Check the WAN cable connections to the Secure
Router. If you are using non-Nortel cable(s), see Cable
Pinouts on page 58 for more information.
2 If the cable is good, perform a BERT test on the link.
3 If the BERT test passes, check the WAN link between
the two ends with external test equipment. If the link is
good, the Nortel router is faulty.