From: Vishal Patel (vpatel@accessproviders.com.au)
Date: Mon Mar 06 2006 - 01:18:20 GMT-3
Hi ,
I have configured this L2TPV3 between two POP routers.
All my POP routers are connected via ATM PVP provided by national Service
Provider.
It worked fine , I cud exchange CDP, VTP and STP informations.
We are thinking of using this for layer 2 vpns , very simple and nice
stuff.
My two pop router's config was something like this:
Router1:
l2tp-class cisco
cookie size 8
pseudowire-class cisco
encapsulation l2tpv3
protocol l2tpv3 cisco
ip local interface Loopback50
!
interface Loopback50
ip address 12.12.12.1 255.255.255.255
!
interface ATM0/0/0.50 point-to-point
ip address 25.25.25.1 255.255.255.252
no snmp trap link-status
pvc 149/50
!
interface FastEthernet6/0/0.20
encapsulation dot1Q 20
no snmp trap link-status
no cdp enable
xconnect 11.11.11.1 34 pw-class cisco
router ospf 555
log-adjacency-changes
network 12.12.12.1 0.0.0.0 area 0
network 25.25.25.0 0.0.0.3 area 0
Router2:
l2tp-class cisco
cookie size 8
pseudowire-class cisco
encapsulation l2tpv3
protocol l2tpv3 cisco
ip local interface Loopback50
!
interface Loopback50
ip address 11.11.11.1 255.255.255.255
!
interface ATM0/0/0.50 point-to-point
ip address 25.25.25.2 255.255.255.252
no snmp trap link-status
pvc 149/50
!
interface FastEthernet6/0/0.20
encapsulation dot1Q 20
no snmp trap link-status
no cdp enable
xconnect 12.12.12.1 34 pw-class cisco
router ospf 555
log-adjacency-changes
network 11.11.11.1 0.0.0.0 area 0
network 25.25.25.0 0.0.0.3 area 0
Cheers
Vishal
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
yesmat@xtra.co.nz
Sent: Monday, 6 March 2006 2:02 PM
To: ccielab@groupstudy.com
Subject: L2TPV3
Hi All,
I am trying to configure 2 redundant L2TPV3 tunels for a customer between
two geographically dispersed sites over a L3 cloud. The customer would like
a dynamic mechanism to failover from the primary to the secondary tunel in
case of loss of connectivity over the primary WAN link. I thought of using
Spanning-tree.
The primary tunel is configured and both sites are connected fine. But for
some reason BPDU's are not travelling over that tunel. Without BPDUs
spanning-tree will be useless and the failover will not occur and in fact a
loop will occur.
Does anyone know any issues that may affect BPDUs travelling over L2TPV3
tunels?
like MTU size, mismatched VLANs on both sides of the tunnel etc....?
cheers
Yakout
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