Hi Ed,

It's a layer 2 conenction. I'm am a bit confused myself about the term non-q-in-q. I know what q-in-q is, but not sure what they meant by the "non" part.

I actually tried labbing up the type of configuration you have here using a 3550 as the (provider) switch between the routers, but the conenction wouldn't come up (over the same L2 vlan) until the switch had vlan 100, and vlan 200. This may be a limitation with the switch and not the way the ISP does it. The ISP said they didn't have to provide us with any kind of vlan number.

Thanks

It's a layer 2 conenction. I'm am a bit confused myself about the term non-q-in-q. I know what q-in-q is, but not sure what they meant by the "non" part.

Perhaps they are using ATOM or L2TPv3 - IOW, there aren't using a switched network for L2 extension. To the customer, the main difference is that you don't need to match the Service Provider customer assigned vlan, they are providing a pseudowire for you.

I actually tried labbing up the type of configuration you have here using a 3550 as the (provider) switch between the routers, but the conenction wouldn't come up (over the same L2 vlan) until the switch had vlan 100, and vlan 200

You can't do my sample config on a 3550, not supported. You said routers in the initial post so I assumed real IOS routers.

On the 3550, this will work.

Hub:

interface gx/x

switchport trunk en do

switchport mode trunk

switchport trunk all vlan 100,200

interface vlan 100

ip address 100.x.x.x

interface vlan 200

ip address 200.x.x.x

remote site B:

interface gx/x

switchport trunk en do

switchport mode trunk

switchport trunk all vlan 100

interface vlan 100

ip add 100.x.x.x

remote site B:

interface gx/x

switchport trunk en do

switchport mode trunk

switchport trunk all vlan 200

interface vlan 200

ip address 200.x.x.x

Regards

Edison.

Thanks Ed,

You're correct the 3550 I was using was to simulate the ISP, but I guess like you say that's not possible. The hub site and the remotes will be real IOS 38xx routers (latest IOS).

So I guess I don't need to bother with any "native vlan xxxx" statement for the main interfaces huh for hub and remotes routers?

Just leave the main interfaces (hub and remotes) no shut and for the sub-interfaces assign L3 addressing with coresponding dot1q for each site. Does this sound correct.

This will be sort of like Frame Relay point-to-point in a way with the remote sites each pointing to the hub. Atleast this is the way I envision it.

Thanks

Thanks

So I guess I don't need to bother with any "native vlan xxxx" statement for the main interfaces huh for hub and remotes routers?

Correct. You only need that on Q-in-Q type of design.

Just leave the main interfaces (hub and remotes) no shut and for the sub-interfaces assign L3 addressing with coresponding dot1q for each site. Does this sound correct.

Yes.

This will be sort of like Frame Relay point-to-point in a way with the remote sites each pointing to the hub. Atleast this is the way I envision it.

Sort of.

Please rate helpful posts

Hi Ed,

One more question...for now. As far as duplex and speed on the ME facing interfaces. Just let it auto?

Thanks

You need to match with the provider's.

Ask them what's their setting.

Hi Ed,

The duplex settings will be full duplex.

If you're hub site is say 50MB and the remotes are say like 8MB then how would you set the speed when typically you only have the option of 10,100, or 1000?

Would you just set duplex to full and set the speed to 100 for the hub and remotes?

Thanks

You need to deploy QoS for subrate services.

Do you have a doc for that?

Thanks

http://www.cisco.com/en/US/docs/ios/12_2/qos/configuration/guide/qcfcbshp.html

Hi Ed,

Then since you can only set full duplex (on the physical interfaces) for either 10, 100, or 1000 would you setup the ME facing interfaces for both the HUB site and remote site to 100/FULL?

Then on the hub would you configure Class based shaping for each remote site and set the service policy for each site under their coresponding subinterfaces (on the hub router)?

Thanks