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Summit 200 Series Switch Installation and User Guide 237
VLANs, IP Addresses and default routes:
The system can have an IP address for each configured VLAN. It is necessary to have an IP address
associated with a VLAN if you intend to manage (Telnet, SNMP, ping) through that VLAN or route IP
traffic. You can also configure multiple default routes for the system. The system first tries the default
route with the lowest cost metric.
If you intend to run a routing protocol on a stacked set of switches, you mush have an IP address
assigned to the StkMgmt VLAN.
STP
You have connected an endstation directly to the switch and the endstation fails to boot correctly:
The switch has STP enabled, and the endstation is booting before the STP initialization process is
complete. Specify that STP has been disabled for that VLAN, or turn off STP for the switch ports of the
endstation and devices to which it is attempting to connect, and then reboot the endstation.
The switch keeps aging out endstation entries in the switch Forwarding Database (FDB):
Reduce the number of topology changes by disabling STP on those systems that do not use redundant
paths.
Specify that the endstation entries are static or permanent.
Debug Tracing
ExtremeWare includes a debug-tracing facility for the switch. The show debug-tracing command can be
applied to one or all VLANs, as follows:
show debug-tracing {vlan <name>}
The debug commands should only be used under the guidance of Extreme Networks technical
personnel.
TOP Command
The top command is a utility that indicates CPU utilization by process.
Contacting Extreme Technical Support
If you have a network issue that you are unable to resolve, contact Extreme Networks technical support.
Extreme Networks maintains several Technical Assistance Centers (TACs) around the world to answer
networking questions and resolve network problems. You can contact technical support by phone at:
• (800) 998-2408
• (408) 579-2826