Wondering if someone can help out here with this setup.
I have a 3750 switch stack (Stack-1). I created a 2nd stack (Stack-2) in another cabinet. Too far apart for stacking cables so I am using port channeling.
2 Gig ports on each switch, each belonging to a port channel. Ports are up and I can ping from stack-1 to stack-2 and back again. However =91sh ip int br=92 on both stacks show poertchannels as down-down. I am using =93channel-group # mode passive=94 to disable PAgP because the ports in each channel are on separate switches.So the question is, why do both switches show Port-channels as down- down and yet I am able to ping back and forth?
also as I am using private-vlans (so that client-1 cannot see or communicate with client-2,3,4 etc) I cannot use VTP in server mode. On Stack-1 i want to use private-vlans 200-299. On Stack-2 I want to use private-vlan 299-399.
The ASA (the gateway to the internet) is patched to Switch-1. So all servers attched to Stack-2 need to not see private-vlans on stack-1 or stack-2 but must use the ASA (192.168.20.250) as the default gateway.
Below is a snippet of some of the configs on both switches.
I suspect I either have the port-channels or the ports in the portchannels misconfigured.
Stack1 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D
vlan 100 name vlan-100-vsite-shared private-vlan primary private-vlan association 200-211,299
vlan 200 name vlan-200-Client1 private-vlan community
interface Vlan100 ip address 192.168.20.245 255.255.255.0
interface Port-channel1 description Port-Channel-1 - LINK to Stack-2 switchport trunk encapsulation dot1q switchport mode trunk load-interval 30
interface FastEthernet1/0/3 description F1/0/03 - Client-1 - Server1 switchport private-vlan host-association 100 200 switchport mode private-vlan host speed 100 duplex full
interface GigabitEthernet1/0/1 description G1/0/01 - LINK to Stack-2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive spanning-tree portfast disable ! interface GigabitEthernet2/0/1 description G2/0/01 - LINK to Stack-2 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode passive spanning-tree portfast disable
sh ip int br =85.. GigabitEthernet1/0/1 unassigned YES unset up up GigabitEthernet2/0/1 unassigned YES unset up up Port-channel1 unassigned YES unset down down
Stack2 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D
vlan 100 name vlan-100-vsite-shared private-vlan primary private-vlan association 299-301
interface Vlan100 ip address 192.168.20.246 255.255.255.0
vlan 301 name vlan-301-Client2 private-vlan community
interface Port-channel2 description Port-Channel-1 - LINK to Stack-1 switchport trunk encapsulation dot1q switchport mode trunk load-interval 30 spanning-tree portfast disable
interface GigabitEthernet1/0/1 description G1/0/01 - Testing-Stack-Communication switchport private-vlan host-association 100 301 switchport mode private-vlan host
interface GigabitEthernet1/0/28 description G1/0/28 - LINK to Stack-1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 2 mode passive spanning-tree portfast disable
interface GigabitEthernet2/0/28 description G2/0/28 - LINK to Stack-1 switchport trunk encapsulation dot1q switchport mode trunk channel-group 2 mode passive spanning-tree portfast disable
sh ip int br =85.. GigabitEthernet1/0/28 unassigned YES unset up up GigabitEthernet2/0/28 unassigned YES unset up up Port-channel2 unassigned YES unset down down