– 579 –
A
Troubleshooting
Problems Accessing the Management Interface
Table 205: Troubleshooting Chart
Symptom
Action
Cannot connect using
Telnet, web browser, or
SNMP software
◆
Be sure the switch is powered up.
◆
Check network cabling between the management station and the
switch.
◆
Check that you have a valid network connection to the switch and
that the port you are using has not been disabled.
◆
Be sure you have configured the VLAN interface through which the
management station is connected with a valid IP address, subnet
mask and default gateway.
◆
Be sure the management station has an IP address in the same
subnet as the switch’s IP interface to which it is connected.
◆
If you are trying to connect to the switch via the IP address for a
tagged VLAN group, your management station, and the ports
connecting intermediate switches in the network, must be
configured with the appropriate tag.
◆
If you cannot connect using Telnet, you may have exceeded the
maximum number of concurrent Telnet/SSH sessions permitted. Try
connecting again at a later time.
Cannot connect using
Secure Shell
◆
If you cannot connect using SSH, you may have exceeded the
maximum number of concurrent Telnet/SSH sessions permitted. Try
connecting again at a later time.
◆
Be sure the control parameters for the SSH server are properly
configured on the switch, and that the SSH client software is
properly configured on the management station.
◆
Be sure you have generated both an RSA and DSA public key on the
switch, exported this key to the SSH client, and enabled SSH service.
◆
Be sure you have set up an account on the switch for each SSH user,
including user name, authentication level, and password.
◆
Be sure you have imported the client’s public key to the switch (if
public key authentication is used).
Cannot access the on-
board configuration
program via a serial port
connection
◆
Be sure you have set the terminal emulator program to VT100
compatible, 8 data bits, 1 stop bit, no parity, and the baud rate set to
any of the following (9600, 19200, 38400, 57600, 115200 bps).
◆
Check that the null-modem serial cable conforms to the pin-out
connections provided in the Installation Guide.
Forgot or lost the password
◆
Contact your local distributor.
Содержание EX-3524
Страница 2: ......
Страница 28: ...Figures 28 ...
Страница 34: ...Section I Getting Started 34 ...
Страница 58: ...Chapter 1 Initial Switch Configuration Setting the System Clock 58 ...
Страница 72: ...Chapter 2 Using the Command Line Interface CLI Command Groups 72 ...
Страница 156: ...Chapter 5 SNMP Commands Notification Log Commands 156 ...
Страница 164: ...Chapter 6 Remote Monitoring Commands 164 ...
Страница 218: ...Chapter 7 Authentication Commands Management IP Filter 218 ...
Страница 268: ...Chapter 8 General Security Measures Port based Traffic Segmentation 268 ...
Страница 292: ...Chapter 9 Access Control Lists ACL Information 292 ...
Страница 312: ...Chapter 10 Interface Commands Power Savings 312 ...
Страница 324: ...Chapter 11 Link Aggregation Commands Trunk Status Display Commands 324 ...
Страница 366: ...Chapter 15 Address Table Commands 366 ...
Страница 428: ...Chapter 17 VLAN Commands Configuring Voice VLANs 428 ...
Страница 572: ...Chapter 25 IP Interface Commands IPv6 Interface 572 ...
Страница 578: ...Section I Appendices 578 ...
Страница 594: ...Appendix C Customer Support Manuals 594 ...