From: srdja blagojevic (srdja1@pexim.co.yu)
Date: Fri May 12 2006 - 14:48:51 ART
Mark,
If I understand correctly, you are trying to make q-in-q tunnel?
Your ISP edge switch is missing this command: switchport mode dot1q-tunnel
Maybe, these links will help you in solving this problem:
http://www.cisco.com/en/US/partner/products/hw/switches/ps708/products_confi
guration_guide_chapter09186a0080160a90.html
http://www.cisco.com/en/US/partner/products/hw/switches/ps708/products_confi
guration_guide_chapter09186a008027476b.html
If tou are not configuring q-in-q tunnel, then you can not see your remote
switches with CDP, just ISP's (if ISP turn on CDP on ports towards you with
cdp enable).
Best regards,
Srdja
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Mark
Lasarko
Sent: Friday, May 12, 2006 18:54
To: ccielab@groupstudy.com
Subject: OT: CDP Over SP Link Question
Greetings,
I am having an issue getting CDP to function over an SP's link.
I can ping across, but cannot see neighbors.
The SP has a core 7600, but the drops at the sites are (Fujitsu)
Flashwave's.
(OC-48 into an Ethernet port, etc...)
Anyway we have established trunk ports on both sides and can ping; VLAN 1
and other relative vlans are explicitly allowed, etc...
I connect the core and client switches back to back and everything is good.
I plug into the Flashwave(s), which are supposedly piped directly to the
7600 in the CO.
We have some access, but no CDP...
Here is the config the SP sent to me:
7613#sh run int f13/17
!
interface FastEthernet13/17
description Core
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 270-272
switchport mode trunk
no ip address
speed 10
duplex full
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
no cdp enable
spanning-tree bpdufilter enable
end
7613#sh run int f13/19
!
interface FastEthernet13/19
description Site1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 271
switchport mode trunk
no ip address
speed 10
duplex full
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
no cdp enable
spanning-tree bpdufilter enable
end
7613#sh run int f13/20
!
interface FastEthernet13/20
description Site2
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 272
switchport mode trunk
no ip address
speed 10
duplex full
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
no cdp enable
spanning-tree bpdufilter enable
Any thoughts on this?
We are trying to terminate into a 3550 at the core and 2900XL/3500XL
switches at the clients/spokes.
Keep in mind the XL's are just for proof of concept, we'll be into 3750's
all around in production.
TIA,
~M
This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:21 ART