Hi Simon, so you have: IX---SwitchA---SwitchB---Router why not disable spanning tree? There is no redundancy here anyway so disable it in that particular VLAN. Steve On Wed, 9 Nov 2005, Simon Brilus wrote:
Hi ,
We are unable to resolve a problem with our peering exchange connection and would like any assistance. Our peering setup is a follows:
- Our peering exchange connection goes into switch A - Switch A has a dark fibre connection to switch B, which is in a different PoP - Our peering router is connected to switch B
We use spanning tree across our network to allow the VLANs connectivity across our network.
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?
Your input will be most welcome.
The config on switch A is as follows:
interface GigabitEthernet0/5 description Peering Link switchport access vlan 148 switchport mode access speed nonegotiate storm-control broadcast level 5.00 no cdp enable spanning-tree portfast spanning-tree bpdufilter enable spanning-tree guard root
Regards
Simon Brilus