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Troubleshooting 4-1
4
Troubleshooting
This chapter provides information concerning the following:
• Using LANVIEW (Section 4.1)
• Troubleshooting Checklist (Section 4.2)
• Using the RESET Button (Section 4.3)
4.1 USING LANVIEW
The 2H253-25R uses Cabletron Systems’ built-in visual diagnostic and status monitoring system
called LANVIEW. The LANVIEW LEDs (Figure 4-1) allow quick observation of the network
status to aid in diagnosing network problems.
Figure 4-1 LANVIEW LEDs
Full Duplex Status
Speed Status
LED
MODE
RX-TX
DPX-SPD
Receive (RX)
Transmit (TX)
DPX-SPD
RX-TX
LED
MODE
2H253-25R
COM
PWR
CPU
RESET
LED
MODE
RX-TX
DPX-SPD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
13
15
16
17
18
19
20
21
22
23
24
FAST ETHERNET WORKGROUP SWITCH
2762-09
CPU
PWR
A
A
B
B
LED functions when LED MODE switch is in the RX-TX position. This is the
default switch setting.
LED functions when LED MODE switch is in the DPX-SPD position.