After looking over Microsofts Loadbalancing white paper; it apears that
microsoft is using a multicast MAC address for these heart beats. The
switch is going the flood them across the vlan every time it gets one.
Ask whoever maintains the Win 2000 servers why they have that enabled.
They may not be aware what it is for. I'd keep my fingers crossed for
this solution.
If it is enabled for a reason AND the heart beats are actually a
problem; you'll need to put the server cluster on a seperate VLAN.
**There is a note about cisco routers (in the white paper) not liking
the multicast MAC with the unicast IP address. It requires a static ARP
entry in the router.
10% to 15% is that during a low traffic period? Is this causing slow
responce or some other problem?
Keep us updated.
DaveC
Andy Prima wrote:
>
> Thank you all for the answers. This frame consumes 10-15 % of total frames
> circling in my network. Any comment for this ? Can I filter it out? Is
there
> any consideration on filtering?
>
> TIA,
> Andy
>
> -----Original Message-----
> From: Brian Dennis [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, May 09, 2001 12:09 PM
> To: Andy Prima; [EMAIL PROTECTED]
> Subject: RE: Protocol Type 0x886F [7:3737]
>
> It's a heartbeat frame for Windows NT Load Balancing Service.
>
> Brian Dennis, CCIE #2210 (R&S)(ISP/Dial) CCSI #98640
> 5G Networks, Inc.
> [EMAIL PROTECTED]
> (925) 260-2724
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > Andy Prima
> > Sent: Tuesday, May 08, 2001 9:47 PM
> > To: [EMAIL PROTECTED]
> > Subject: Protocol Type 0x886F [7:3737]
> >
> >
> > Dear all,
> > I need help on protocol type 0x886F. It seems that this kind of Ethernet
> > Broadcast is circling around my network and I do not have a clue what it
> > really is.
> >
> > TIA
> > andy
> > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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