[mrtg] Re: 3com and VLAN measurements

[Peter P. Benac]

Liz,

     VLAN1 is the management VLAN and SNMP get requests to VLAN1 are showing
management traffic.   Spanning Tree, ICMP, broadcast traffic etc.. The
graphs for each interface are more important.  If VLAN1 traffic is as you
say in the 96 mb/s range then I'd be looking at excess spanning tree traffic
or excess broadcast traffic.

     Ports that are not attached to another switch or router should have
spanning tree turned off.  If a PC is powered down then every device in the
LAN will be forced to recompute Spanning Tree.  This can cause excess
traffic. 

Regards,
Pete
----
Peter P. Benac, CCNA
Celtic Spirit Network Solutions
Providing Network and Systems Project Management and Installation and Web
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Phone: 919-618-2557
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-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch] On
Behalf Of liz
Sent: Saturday, January 29, 2005 20:05
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] 3com and VLAN measurements


Peter,


Bits per second :) Doh! I always get those confused. I assumed all the ports
were members of vlan 1 because its the default vlan on the switch. So what
is VLAN1 measuring?  Im so confused :(

Thanks,
Liz


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