CCIE-SP TOPIC - trouble establishing neighbor relationship

Hello Experts,

I have tried the two following scenarios and have unsuccessfully been able
to complete my tasks of configuring ISIS between two Frame-relay
interfaces.using L2TPv3
This lab first consist of 4 routers. Two PE and two CE routers. L2TPv3
(routed) is configured between the two PE routers and normal Frame-relay
between the two CE routers. There were no subinterfaces used in this lab.

*Lab 1 did not work.* Lab 1 consist of R1(frame-relay) to R4(frame-relay)
with R2and R3 running L2TPv3 in between L2 Tunnel is up and working but ISIS
will not establish neighbor relationship. I verfied the same configuration
without L2TPv3 in lab 1 and it work fine. Any suggestions.
*
LAB 1:
**
10.0.14.1* 2.2.2.2
3.3.3.3 *10.0.14.4*
* ISIS * *OSPF/L2TPv3 *
                                     * ISIS*
* R1* <------------FR-SW----------> *R2* <--------------------->
*R3*<------------<FR-SW>----------------->
*R4*
* CE* Frame switch/GNS3 *PE* * PE *
Frame switch/GNS3 *CE*
             and without FR-SW
                                               and without FR-SW
                   dlci 104
                                       dlci 401

*Ping is successful from R1 to R4*. Frame relay map statements for both CLNS
and IP working as expected of which i verified with Debugs. If any one has
time or might know what's wrong give it a try and let me know. Please
request any additional information that you may need.
I have used the following cisco links for reference

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009445a.shtml
http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_l2vpn_intrntwkg_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1055221

R1
*clns routing*

iinterface Serial1/0
 ip address 10.0.14.4 255.255.255.0
 ip router isis B
 encapsulation frame-relay
 serial restart-delay 0
* frame-relay map clns 401 broadcast*
 frame-relay map ip 10.0.14.1 401 broadcast
* clns router isis B*
 isis circuit-type level-2-only

router isis B
 net 49.0014.0000.0000.0001.00
 is-type level-2-only
 metric-style wide
 log-adjacency-changes

R1#ping 10.0.14.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.14.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 156/173/192 ms

R1# debug isis adj
03:43:02: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500
03:43:11: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500
03:43:19: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500
03:43:29: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500
03:43:37: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500

R1#sh isis nei
System Id Type Interface IP Address State Holdtime Circuit Id

----------------------
R4

*clns routing*
router isis B
 net 49.0014.0000.0000.0004.00
 is-type level-2-only
 metric-style wide
 log-adjacency-changes

interface Serial1/0
 ip address 10.0.14.4 255.255.255.0
 ip router isis B
 encapsulation frame-relay
 serial restart-delay 0
* frame-relay map clns 401 broadcast*
 frame-relay map ip 10.0.14.1 401 broadcast
 *clns router isis B*
 isis circuit-type level-2-only

!
R4#ping 10.0.14.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.14.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/31/76 ms

R4# debug isis adj
03:29:18: ISIS-Adj: Run level-2 DR election for Serial1/0
03:29:18: ISIS-Adj: No L2 adjacencies found for Serial1/0
03:29:25: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500
03:29:34: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500
03:29:42: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500
03:29:50: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500

*LAB 2 worked with success.*

                     DCE

*R1(s1/0)* <-->FR Switch<-->(*s1/0) R2*

 * ISIS* * ISIS*
   ^ ^
   | ----------------FR SW--------------|

R1#sh isis nei

System Id Type Interface IP Address State Holdtime Circuit Id
R2 L2 Se1/0 10.0.12.2 UP 9 R2.01

R1#sh run inter s1/0
Building configuration...

Current configuration : 244 bytes
!
interface Serial1/0
 ip address 10.0.12.1 255.255.255.0
 ip router isis A
 encapsulation frame-relay
 serial restart-delay 0
* frame-relay map clns 102 broadcast*
 frame-relay map ip 10.0.12.2 102 broadcast
 isis circuit-type level-2-only

router isis A
 net 49.0012.0000.0000.0001.00
 metric-style wide
 log-adjacency-changes

00:11:44: ISIS-Adj: Sending L2 LAN IIH on Serial1/0, length 1500
R1#
00:11:46: ISIS-Adj: Rec L2 IIH from DLCI 102 (Serial1/0), cir type L2, cir
id 0000.0000.0002.01, length 1500
R1#
00:11:48: ISIS-Adj: Rec L2 IIH from DLCI 102 (Serial1/0), cir type L2, cir
id 0000.0000.0002.01, length 1500

R2
interface Serial1/0
 ip address 10.0.12.2 255.255.255.0
 ip router isis A
 encapsulation frame-relay
 serial restart-delay 0
* frame-relay map clns 201 broadcast*
 frame-relay map ip 10.0.12.1 201 broadcast
 isis circuit-type level-2-only

R2#sh isis nei

System Id Type Interface IP Address State Holdtime Circuit Id
R1 L2 Se1/0 10.0.12.1 UP 29 R2.01

router isis A
 net 49.0012.0000.0000.0002.00
 metric-style wide
 log-adjacency-changes

*Thanks,

Ben*

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Received on Tue Mar 01 2011 - 16:51:49 ART