I have a customer that insists we are either blocking STP BPDU traffic, and in wireshark traces our switches are mixing BPDU traffic with theirs. My goal is to configure a transparent switch port that allows everything, customer can send anything end-to-end thus making our switch invisible. Also, I wish to constrain this to there port only.
Network:
Two Cisco 6500 switches running IOS
Customer:
Using port Fa6/7 on Cisco6500-LOCA to port Fa6/7 on Cisco6500-LOCZ
Question;
Will the configuration below work? Has anybody done this? My reference is http://packetlife.net/blog/2010/apr/15/invisible-catalyst-switch/
Configuration:
On Cisco6500-LOCA
interface fa6/7
description Facing LOCA
switchport mode dot1q-tunnel
switchport access vlan 201
speed 100
duplex full
mtu 9216
no cdp enable
switchport nonegotiate
no keepalive
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
l2protocol-tunnel point-to-point pagp
l2protocol-tunnel point-to-point lacp
l2protocol-tunnel point-to-point udld
end
interface gig 1/1
description Trunk between Cisco6500-LOCA and Cisco6500-LOCZ
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk allowed vlan 201,800-850
mtu 9216
end
On Cisco6500-LOCZ
interface fa6/7
description Facing LOCZ
switchport mode dot1q-tunnel
switchport access vlan 201
speed 100
duplex full
mtu 9216
no cdp enable
switchport nonegotiate
no keepalive
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
l2protocol-tunnel point-to-point pagp
l2protocol-tunnel point-to-point lacp
l2protocol-tunnel point-to-point udld
end
interface gig 1/1
description Trunk between Cisco6500-LOCZ and Cisco6500-LOCA
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk allowed vlan 201,800-850
mtu 9216
end
-Mn
