nanog mailing list archives
Re: Peering VLANs and MAC addresses
From: Steven Bakker <steven.bakker () ams-ix net>
Date: Wed, 09 Nov 2005 20:56:19 +0100
On Wed, 2005-11-09 at 10:39 +0000, Simon Brilus wrote:
The peering exchange has an MoU that only 1 MAC address should be visible on their switch. However they see 2 MAC addresses on our port. - MAC address of Peering router - MAC address of the port they are connected to on switch A Is there any way to prevent switch A from presenting the interface MAC address? Or is this a symptom of spanning tree that cannot be stopped?
Has it been confirmed that the violating frames are in fact STP BPDUs? Could be all kinds of other autoconfig crap (CDP, VTP, etc.). Don't know your VLAN setup and I certainly don't know that much about Cisco L2 features. Is it possible to have topology groups with a master VLAN (the one that does STP) and member VLANs that don't speak STP? If so, that may be a way to keep STP traffic from coming out of your IX port (barring vendor bugs).
Your input will be most welcome.
Is it absolutely necessary to run STP on the edge of the IX? -- Steven
Current thread:
- Peering VLANs and MAC addresses Simon Brilus (Nov 09)
- Re: Peering VLANs and MAC addresses Steven Bakker (Nov 09)
- Re: Peering VLANs and MAC addresses Stephen J. Wilcox (Nov 09)
- Re: Peering VLANs and MAC addresses Randy Bush (Nov 09)
- Re: Peering VLANs and MAC addresses Joe Abley (Nov 09)
- Re: Peering VLANs and MAC addresses Randy Bush (Nov 09)
- Re: Peering VLANs and MAC addresses Robert Kiessling (Nov 09)
- RE: Peering VLANs and MAC addresses Chris Roberts (Nov 09)
- Re: Peering VLANs and MAC addresses Richard A Steenbergen (Nov 09)
- Re: Peering VLANs and MAC addresses Randy Bush (Nov 11)
- Re: Peering VLANs and MAC addresses Will Hargrave (Nov 11)
- Re: Peering VLANs and MAC addresses Patrick W. Gilmore (Nov 11)
- Re: Peering VLANs and MAC addresses Randy Bush (Nov 09)