HP GbE2c HP GbE2c Layer 2/3 Ethernet Blade Switch for c-Class BladeSystem User - Page 52

configuring VLANS

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Page 52 highlights

Because there are multiple links across this device and the destination device, they form loops, which cause broadcast storms. Enable STP for multiple links. This setting prevents loops and maintains standby links for resilience in case of primary link failure. Cannot connect to the switch remotely using the Web interface Action: • The switch IP address is not configured or correct. o From the serial console interface, be sure that the switch IP address is configured and valid on the network. o Use the correct IP address to establish the Web connection with the switch. • Access to the switch using the Web interface is disabled. From the serial console interface, be sure that the Web interface is enabled. • The Proxy server settings are configured on the Internet browser and the proxy server does not know the switch IP address. Disable the manual proxy settings on the Web browser and let it automatically find Web servers using the IP address. • The management network address/mask (if used) does not contain the IP address of the management station. From the serial console interface, be sure that the management network address/mask contains the IP address of the management station. Cannot enable a port in multiple VLANs while configuring VLANS Action: A port is part of only one VLAN unless the port is a tagged port. Be sure that the port is enabled as a tagged port. The switch does not let the user enable two adjacent ports into two different VLANs while assigning the ports to VLANs Action: The ports are two adjacent ports that are bundled in a Port Trunk. Two ports that are assigned to a Port Trunk cannot be assigned to two different VLANs. Either break the trunk to assign it two different VLANs or assign the ports to one VLAN. Troubleshooting 52

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Troubleshooting 52
Because there are multiple links across this device and the destination device, they form loops, which
cause broadcast storms. Enable STP for multiple links. This setting prevents loops and maintains standby
links for resilience in case of primary link failure.
Cannot connect to the switch remotely using the Web
interface
Action:
•
The switch IP address is not configured or correct.
o
From the serial console interface, be sure that the switch IP address is configured and valid on
the network.
o
Use the correct IP address to establish the Web connection with the switch.
•
Access to the switch using the Web interface is disabled. From the serial console interface, be sure
that the Web interface is enabled.
•
The Proxy server settings are configured on the Internet browser and the proxy server does not know
the switch IP address. Disable the manual proxy settings on the Web browser and let it automatically
find Web servers using the IP address.
•
The management network address/mask (if used) does not contain the IP address of the
management station. From the serial console interface, be sure that the management network
address/mask contains the IP address of the management station.
Cannot enable a port in multiple VLANs while
configuring VLANS
Action:
A port is part of only one VLAN unless the port is a tagged port. Be sure that the port is enabled as a
tagged port.
The switch does not let the user enable two adjacent
ports into two different VLANs while assigning the
ports to VLANs
Action:
The ports are two adjacent ports that are bundled in a Port Trunk. Two ports that are assigned to a Port
Trunk cannot be assigned to two different VLANs. Either break the trunk to assign it two different VLANs
or assign the ports to one VLAN.