[c-nsp] Cisco 7304/NSE-100 L2TP session problem
Daniel de la Rosa (ddelaros)
ddelaros at cisco.com
Wed May 6 20:10:53 EDT 2009
Probably too late to resolve this issue.. but at least for the record..
7304/NSE100 doesn't officially support DSL/L2TPv2 aggregation, so that's
you can configure this but it just doesn't work..
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Jonas Frey
> Sent: Friday, April 24, 2009 4:03 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Cisco 7304/NSE-100 L2TP session problem
>
> Hello,
>
> i am using a 7304 w/NSE-100 for DSL aggregation. Am running 12.2.33SB5
> now (also tried 12.2.31 and 12.2.28).
> However i cant get things to work, L2TP tunnels are getting
established
> but as soon as sessions are coming in they are getting closed. My
> config
> as follows:
>
> virtual-profile if-needed
> vpdn enable
> vpdn multihop
> vpdn logging
> vpdn logging local
> vpdn logging remote
> vpdn logging user
> vpdn logging tunnel-drop
>
>
> vpdn-group 2
> accept-dialin
> protocol l2tp
> virtual-template 2
> session-limit 1000
> terminate-from hostname xxxxxxxxx
> source-ip x.x.x.x
> local name xxxx
> lcp renegotiation always
> l2tp tunnel password 7 xxx
> l2tp tunnel receive-window 100
> l2tp tunnel retransmit timeout min 2
>
> interface Virtual-Template2
> mtu 1492
> ip unnumbered Loopback0
> no ip redirects
> no ip proxy-arp
> ip mtu 1492
> no logging event link-status
> peer default ip address pool test1
> keepalive 60
> ppp mtu adaptive
> ppp authentication pap ADSL
> ppp authorization ADSL
> ppp accounting ADSL
> no clns route-cache
>
> As for errors i do get these:
>
> 00:18:35: %VPDN-4-MIDERROR: L2TP LNS xxxx unable to terminate user
> shdsl-0/001; Result 1, Error 1, Dataplane down
>
> note: 12.2.31 and 12.2.28 give a different message:
>
> 00:49:37: %VPDN-6-CLOSED: L2TP LNS xxxx closed user
> shdsl-0/001; Result 1, Error 0, nas-error/VPDN Carrier Loss
>
> Also the system prints the following error from time to time:
>
> 00:18:39: %SW_MGR-3-CM_ERROR: Connection Manager Error - provision
> segment failed [ADJ:L2TP:5041] - hardware platform error.
> -Traceback= 40812F84 408134C8 41177478 4117754C 42123DC8 41174DD0
> 42A0FEF4 42A0FFB4 411757F8 41175988 41166FB8 42A0FEF4 42A0FFB4
41167BC0
> 411627C4 41166250
>
> And debug vodn l2x-events gives:
>
> 00:21:21: L2TP _____:032E1:0000C9C5: Open sock
> x.x.x.x:1701->y.y.y.y:1701
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn ev Sock-Ready
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn in Wt-Rx-ICCN
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn do Ignore-Sock-Up
> 00:21:21: L2TP _____:032E1:0000C9C5:
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn ev DP-Setup
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn in Wt-Rx-ICCN
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn do Ignore-DP-Setup
> 00:21:21: L2TP tnl 162F2:0000ABED: Congestion Control event received
> is positive acknowledgement
> 00:21:21: L2TP tnl 162F2:0000ABED: Congestion Window size, Cwnd 2
> 00:21:21: L2TP tnl 162F2:0000ABED: Slow Start threshold, Ssthresh 8
> 00:21:21: L2TP tnl 162F2:0000ABED: Remote Window size, 8
> 00:21:21: L2TP tnl 162F2:0000ABED: Congestion Ctrl Mode is Slow
Start
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC ev Rx-SCCCN
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC Wt-SCCCN->Proc-SCCCN
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC do Rx-SCCCN
> 00:21:21: L2TP tnl 162F2:0000ABED: Got a response in SCCCN from xxxx
> 00:21:21: L2TP tnl 162F2:0000ABED: Tunnel Authentication success
> 00:21:21: L2TP tnl 162F2:0000ABED: Control connection authentication
> skipped/passed.
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC ev SCCCN-OK
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC Proc-SCCCN->established
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC do Established
> 00:21:21: L2TP tnl 162F2:0000ABED: Control channel up
> 00:21:21: L2TP tnl 162F2:0000ABED: x.x.x.x<->y.y.y.y
> 00:21:21: L2TP tnl 162F2:0000ABED: Control connection authentication
> skipped/passed.
> 00:21:21: L2X _____:_____:________: Create logical session
> 00:21:21: L2TP _____:_____:________: Create session
> 00:21:21: L2TP _____:_____:________: Using ICRQ FSM
> 00:21:21: L2TP _____:_____:________: FSM-Sn ev created
> 00:21:21: L2TP _____:_____:________: FSM-Sn Init->Idle
> 00:21:21: L2TP _____:_____:________: FSM-Sn do none
> 00:21:21: L2TP _____:_____:________: remote ip set to y.y.y.y
> 00:21:21: L2TP _____:_____:________: local ip set to x.x.x.x
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC ev Session-Conn
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC in established
> 00:21:21: L2TP tnl 162F2:0000ABED: FSM-CC do Session-Conn-Est
> 00:21:21: L2TP tnl 162F2:0000ABED: Session count now 1
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn ev CC-Up
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn in Idle
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn do CC-Up-Ignore0-1
> 00:21:21: L2TP _____:162F2:00004873: Session attached
> 00:21:21: L2TP _____:162F2:00004873: no cookies enabled
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn ev Rx-ICRQ
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn Idle->Proc-ICRQ
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn do Rx-ICRQ
> 00:21:21: L2TP _____:162F2:00004873: Chose application VPDN
> 00:21:21: L2TP _____:162F2:00004873: App type set to VPDN
> 00:21:21: L2TP tnl 162F2:0000ABED: VPDN Session count now 1
> 00:21:21: L2TP _____:162F2:00004873: VPDN: process AVPs
> 00:21:21: L2TP _____:162F2:00004873: Local AC is now UP
> 00:21:21: L2TP _____:162F2:00004873: Remote AC is now UP
> 00:21:21: L2TP _____:162F2:00004873:
> 00:21:21: L2TP tnl 032E1:00006170: Control connection authentication
> skipped/passed.
> 00:21:21: L2TP tnl 032E1:00006170: Congestion Control event received
> is positive acknowledgement
> 00:21:21: L2TP tnl 032E1:00006170: Congestion Window size, Cwnd 7
> 00:21:21: L2TP tnl 032E1:00006170: Slow Start threshold, Ssthresh 64
> 00:21:21: L2TP tnl 032E1:00006170: Remote Window size, 64
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn ev Rx-ICCN
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn Wt-Rx-ICCN->Proc-ICCN
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn do Rx-ICCN
> 00:21:21: L2TP _____:032E1:0000C9C5: MTU is 65535
> 00:21:21: L2TP _____:032E1:0000C9C5: Session data plane UP
> 00:21:21: L2TP _____:032E1:0000C9C5: VPDN: process AVPs
> 00:21:21: L2TP _____:032E1:0000C9C5:
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn ev ICCN-OK
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn Proc-ICCN->established
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn do Established
> 00:21:21: L2TP _____:032E1:0000C9C5: Session up
> 00:21:21: L2TP _____:032E1:0000C9C5: x.x.x.x<->y.y.y.y
> 00:21:21: L2X:Session DB (Tnl/Sn: 24944/51653): Stored the switching
> session in the session DB
> 00:21:21: L2TP:(Tnl24944:Sn51653)L2X s/w switching session provisioned
> 00:21:21: L2TP _____:032E1:0000C9C5: Received a SSM L2TP segment down
> event
> 00:21:21: L2TP _____:032E1:0000C9C5:
> 00:21:21: L2TUN APP: uid:119handle/5217Destroying app session
> 00:21:21: L2TUN APP: uid:119handle/5217Stopping service selection
> 00:21:21: L2TP _____:162F2:00004873: App type set to VPDN
> 00:21:21: L2TP _____:162F2:00004873: Conditional debugging is
enabled
> 00:21:21: L2TP _____:162F2:00004873: UDP checksum ignore is enabled
> 00:21:21: L2TP _____:162F2:00004873: Framing set to sync
> 00:21:21: L2TP _____:162F2:00004873: Bearer set to none
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn ev ICRQ-OK
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn Proc-ICRQ->Wt-Tx-ICRP
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn do Tx-ICRP-Local-Check
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn ev Local-Cont
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn Wt-Tx-ICRP->Wt-Rx-ICCN
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn do Tx-ICRP
> 00:21:21: L2TP _____:162F2:00004873: Open sock
> x.x.x.x:1701->y.y.y.y:1701
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn ev Sock-Ready
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn in Wt-Rx-ICCN
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn do Ignore-Sock-Up
> 00:21:21: L2TP _____:162F2:00004873:
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn ev DP-Setup
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn in Wt-Rx-ICCN
> 00:21:21: L2TP _____:162F2:00004873: FSM-Sn do Ignore-DP-Setup
> 00:21:21: L2TP _____:032E1:0000C9C5:
> 00:21:21: L2TP _____:032E1:0000C9C5: App type set to VPDN
> 00:21:21: L2TP _____:032E1:0000C9C5: Framing set to sync
> 00:21:21: L2TP _____:032E1:0000C9C5: Bearer set to none
> 00:21:21: L2TP _____:032E1:0000C9C5:
> 00:21:21: L2TP _____:032E1:0000C9C5: Shutting down session
> 00:21:21: L2TP _____:032E1:0000C9C5: Result Code
> 00:21:21: L2TP _____:032E1:0000C9C5: Loss of carrier (1)
> 00:21:21: L2TP _____:032E1:0000C9C5: Error Code
> 00:21:21: L2TP _____:032E1:0000C9C5: No error (0)
> 00:21:21: L2TP _____:032E1:0000C9C5: Vendor Error
> 00:21:21: L2TP _____:032E1:0000C9C5: None (0)
> 00:21:21: L2TP _____:032E1:0000C9C5: Optional Message
> 00:21:21: L2TP _____:032E1:0000C9C5: "Dataplane down"
> 00:21:21: L2TP _____:032E1:0000C9C5:
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn ev App-Disc
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn in established
> 00:21:21: L2TP _____:032E1:0000C9C5: FSM-Sn do App-Disc-Active
> 00:21:21: L2TP _____:032E1:0000C9C5: Session down
> 00:21:21: L2TP _____:032E1:0000C9C5: x.x.x.x<->y.y.y.y
> 00:21:21: L2TP _____:032E1:0000C9C5: Destroying session
> 00:21:21: L2TP _____:032E1:0000C9C5: Request teardown data plane
> 00:21:21: L2TP tnl 032E1:00006170: FSM-CC ev Session-Disc
> 00:21:21: L2TP tnl 032E1:00006170: FSM-CC in established
> 00:21:21: L2TP tnl 032E1:00006170: FSM-CC do Session-Disc-Est
> 00:21:21: L2TP tnl 032E1:00006170: Session count now 0
> 00:21:21: L2TP tnl 032E1:00006170: VPDN Session count now 0
> 00:21:21: L2TP tnl 032E1:00006170: FSM-CC ev No-Users
> 00:21:21: L2TP tnl 032E1:00006170: FSM-CC
established->Est-No-User
> 00:21:21: L2TP tnl 032E1:00006170: FSM-CC do No-Users
> 00:21:21: L2TP tnl 032E1:00006170: No more cc users, shutdown
> (likely)
> in 15 secs
> 00:21:21: L2TP _____:_____:________: Session detached
> 00:21:21: L2X _____:_____:________: Destroying logical session
> 00:21:21: L2TP:(Tnl24944:Sn51653)L2X s/w switching session
> unprovisioned
> 00:21:21: L2X:Session DB (Tnl/Sn: 24944/51653): Removed the switching
> session from the session DB
>
> Does anyone have any idea howto solve this? Unfortunatly i do not have
> access to the LAC as to where these tunnels are coming from.
>
> Regards,
> Jonas
>
>
>
>
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