From: Chuck Larrieu (chuck@xxxxxxxxxxxxx)
Date: Thu Mar 01 2001 - 12:30:23 GMT-3
Under the interfaces, I am assuming that you have entered the command isis
circuit-type level-1-2 it doesn't show in the config, even after entered.
Just checking.
Interesting - I saw the level one and level two packets on both debug
traces. When I see traces like this on frame relay links I attribute it to
failure to see the other side - i.e. isis packets are going out both
ethernets, but none are coming in.
You say a crossover from router to router works fine. So that would
eliminate the configuration as a factor.
Now we come back to the switch. Same ports, same cables, bgp, eigrp, rip,
ping works fine, you say. But.....
On your isis debugs, the connections on your frame side don't happen because
of area mismatches. When you ran the other routing protocols, were the
routes visible through ethernet, or through your frame links? Has this
problem become apparent only because isis is not working properly on any
interface?
That would leads back to a problem with the switch configuration or ports.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Bolles, Ben
Sent: Thursday, March 01, 2001 6:46 AM
To: 'ccielab@groupstudy.com '
Subject: RE: ISIS - weird problem with ethernet switch.
Here are the configs and debugs for my routers R5 and R6 connected via
Ethernet. I'm still confused as to why it works when I go through a X-over
ethernet cable instead of 2912 switch. As you can see in the configs below,
Frame Relay, HDLC and X.25 seem OK.
Anyway, thanks for looking at this.
-Ben
++++++++++++++++++++++++++
R5 Configuration:
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R5
!
ip subnet-zero
no ip domain-lookup
clns routing
!
!
!
!
!
interface Loopback0
ip address 10.20.240.1 255.255.240.0
no ip directed-broadcast
ip router isis Area3
!
interface Loopback1
ip address 192.168.201.1 255.255.255.0
no ip directed-broadcast
ip router isis Area3
!
interface Ethernet0
ip address 10.20.64.5 255.255.240.0
no ip redirects
no ip directed-broadcast
ip router isis Area3
!
interface Serial0
no ip address
no ip directed-broadcast
encapsulation frame-relay
no ip mroute-cache
logging event subif-link-status
logging event dlci-status-change
no fair-queue
clockrate 2000000
frame-relay lmi-type ansi
!
interface Serial0.1 multipoint
ip address 10.20.100.34 255.255.255.224
no ip directed-broadcast
ip router isis Area3
no arp frame-relay
frame-relay map clns 501 broadcast
frame-relay map clns 503 broadcast
frame-relay map ip 10.20.100.33 501 broadcast
frame-relay map ip 10.20.100.35 503 broadcast
no frame-relay inverse-arp
!
interface Serial0.2 multipoint
bandwidth 2000
ip address 192.168.200.17 255.255.255.240
no ip directed-broadcast
ip router isis Area3
frame-relay map clns 504 broadcast
frame-relay map ip 192.168.200.18 504 broadcast
!
interface Serial1
ip address 10.20.25.5 255.255.255.0
no ip directed-broadcast
ip router isis Area3
ip ospf message-digest-key 1 md5 1 cisco
ip ospf network broadcast
!
router isis Area3
net 99.0003.0005.0005.0005.00
!
ip classless
R5 Debug Info:
R5#
00:38:02: ISIS-Adj: Sending L2 IIH on Ethernet0
00:38:02: ISIS-Adj: Sending L1 IIH on Loopback1
00:38:02: ISIS-Adj: Sending L1 IIH on Serial0.2
00:38:03: ISIS-Adj: Sending L2 IIH on Serial0.2
00:38:03: ISIS-Adj: Sending L2 IIH on Loopback0
00:38:03: ISIS-Adj: Rec serial IIH from *HDLC* (Serial1), cir type L1L2, cir
id 00
00:38:03: ISIS-Adj: rcvd state UP, old state UP, new state UP
00:38:03: ISIS-Adj: Action = ACCEPT
00:38:03: ISIS-Adj: Sending L2 IIH on Serial0.1
00:38:03: ISIS-Adj: Rec L1 IIH from DLCI 503 (Serial0.1), cir type L1L2, cir
id 0003.0003.0003.01
00:38:03: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.1
00:38:04: ISIS-Adj: Rec L1 IIH from DLCI 504 (Serial0.2), cir type L1L2, cir
id 0004.0004.0004.01
00:38:04: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.2
00:38:04: ISIS-Adj: Sending L1 IIH on Serial0.1
00:38:05: ISIS-Adj: Sending L1 IIH on Serial0.2
00:38:05: ISIS-Adj: Sending L1 IIH on Loopback0
00:38:05: ISIS-Adj: Sending L2 IIH on Loopback1
00:38:06: ISIS-Adj: Sending L2 IIH on Serial0.2
00:38:06: ISIS-Adj: Rec L2 IIH from DLCI 503 (Serial0.1), cir type L1L2, cir
id 0005.0005.0005.04
00:38:06: ISIS-Adj: Sending L2 IIH on Serial0.1
00:38:06: ISIS-Adj: Rec L1 IIH from DLCI 503 (Serial0.1), cir type L1L2, cir
id 0003.0003.0003.01
00:38:06: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.1
00:38:07: ISIS-Adj: Rec L2 IIH from DLCI 501 (Serial0.1), cir type L1L2, cir
id 0005.0005.0005.04
00:38:07: ISIS-Adj: Sending L1 IIH on Serial0.1
00:38:07: ISIS-Adj: Rec L1 IIH from DLCI 504 (Serial0.2), cir type L1L2, cir
id 0004.0004.0004.01
00:38:07: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.2
00:38:07: ISIS-Adj: Sending L1 IIH on Ethernet0
00:38:08: ISIS-Adj: Sending serial IIH on Serial1
00:38:08: ISIS-Adj: Sending L1 IIH on Serial0.2
00:38:08: ISIS-Adj: Sending L2 IIH on Serial0.2
00:38:09: ISIS-Adj: Rec L2 IIH from DLCI 504 (Serial0.2), cir type L1L2, cir
id 0005.0005.0005.05
00:38:09: ISIS-Adj: Sending L2 IIH on Serial0.1
00:38:09: ISIS-Adj: Rec L1 IIH from DLCI 503 (Serial0.1), cir type L1L2, cir
id 0003.0003.0003.01
00:38:09: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.1
00:38:09: ISIS-Adj: Sending L1 IIH on Serial0.1
00:38:10: ISIS-Adj: Rec L1 IIH from DLCI 501 (Serial0.1), cir type L1L2, cir
id 0000.0000.0000.03
00:38:10: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.1
00:38:10: ISIS-Adj: Rec L1 IIH from DLCI 504 (Serial0.2), cir type L1L2, cir
id 0004.0004.0004.01
00:38:10: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.2
00:38:10: ISIS-Adj: Sending L2 IIH on Ethernet0
00:38:11: ISIS-Adj: Sending L1 IIH on Serial0.2
00:38:11: ISIS-Adj: Sending L2 IIH on Loopback0
00:38:11: ISIS-Adj: Rec serial IIH from *HDLC* (Serial1), cir type L1L2, cir
id 00
00:38:11: ISIS-Adj: rcvd state UP, old state UP, new state UP
00:38:11: ISIS-Adj: Action = ACCEPT
00:38:11: ISIS-Adj: Sending L2 IIH on Serial0.1
00:38:11: ISIS-Adj: Sending L2 IIH on Serial0.2
00:38:12: ISIS-Adj: Rec L1 IIH from DLCI 503 (Serial0.1), cir type L1L2, cir
id 0003.0003.0003.01
00:38:12: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.1
00:38:12: ISIS-Adj: Sending L1 IIH on Loopback1
00:38:13: ISIS-Adj: Sending L1 IIH on Serial0.1
00:38:13: ISIS-Adj: Rec L1 IIH from DLCI 504 (Serial0.2), cir type L1L2, cir
id 0004.0004.0004.01
00:38:13: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.2
00:38:13: ISIS-Adj: Sending L1 IIH on Loopback0
00:38:13: ISIS-Adj: Sending L1 IIH on Serial0.2
00:38:14: ISIS-Adj: Sending L2 IIH on Serial0.1
00:38:14: ISIS-Adj: Sending L2 IIH on Serial0.2
00:38:15: ISIS-Adj: Rec L1 IIH from DLCI 503 (Serial0.1), cir type L1L2, cir
id 0003.0003.0003.01
00:38:15: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.1
00:38:15: ISIS-Adj: Rec L2 IIH from DLCI 501 (Serial0.1), cir type L1L2, cir
id 0005.0005.0005.04
00:38:15: ISIS-Adj: Rec L2 IIH from DLCI 503 (Serial0.1), cir type L1L2, cir
id 0005.0005.0005.04
00:38:15: ISIS-Adj: Sending L2 IIH on Loopback1u
00:38:16: ISIS-Adj: Sending L1 IIH on Serial0.1
00:38:16: ISIS-Adj: Sending serial IIH on Serial1
00:38:16: ISIS-Adj: Sending L1 IIH on Ethernet0
00:38:16: ISIS-Adj: Rec L1 IIH from DLCI 504 (Serial0.2), cir type L1L2, cir
id 0004.0004.0004.01
00:38:16: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.2
00:38:16: ISIS-Adj: Sending L1 IIH on Serial0.2 all
00:38:17: ISIS-Adj: Sending L2 IIH on Serial0.1
00:38:17: ISIS-Adj: Sending L2 IIH on Serial0.2
00:38:17: ISIS-Adj: Rec L2 IIH from DLCI 504 (Serial0.2), cir type L1L2, cir
id 0005.0005.0005.05
00:38:18: ISIS-Adj: Rec L1 IIH from DLCI 503 (Serial0.1), cir type L1L2, cir
id 0003.0003.0003.01
00:38:18: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.1
All possible debugging has been turned off
R5#
00:38:18: ISIS-Adj: Rec L1 IIH from DLCI 501 (Serial0.1), cir type L1L2, cir
id 0000.0000.0000.03
00:38:18: ISIS-Adj: Area mismatch, level 1 IIH on Serial0.1
00:38:18: ISIS-Adj: Sending L1 IIH on Serial0.1
++++++++++++++++++++++++++++++++
R6 Config:
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R6
!
ip subnet-zero
no ip domain-lookup
clns routing
!
!
!
!
!
interface Loopback0
ip address 10.20.60.1 255.255.240.0
no ip directed-broadcast
ip router isis Area1
!
interface Loopback10
no ip address
no ip directed-broadcast
!
interface Ethernet0
ip address 10.20.64.6 255.255.240.0
no ip redirects
no ip directed-broadcast
ip router isis Area1
!
interface Serial0
ip address 10.20.86.2 255.255.255.0
no ip directed-broadcast
ip router isis Area1
encapsulation x25 dce
no ip mroute-cache
x25 address 600
x25 map ip 10.20.86.1 800 broadcast
x25 map clns 800 broadcast
clockrate 2000000
!
interface Serial1
no ip address
no ip directed-broadcast
shutdown
!
router isis Area1
net 99.0001.0006.0006.0006.00
!
ip classless
R6 Debug info:
R6#debug isis adj
IS-IS Adjacency related packets debugging is on
R6#
00:41:03: ISIS-Adj: Sending L2 IIH on Ethernet0
00:41:04: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:04: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:06: ISIS-Adj: Sending L2 IIH on Serial0
00:41:07: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:07: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:07: ISIS-Adj: Sending L1 IIH on Serial0
00:41:07: ISIS-Adj: Sending L1 IIH on Ethernet0
00:41:10: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:10: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:11: ISIS-Adj: Sending L2 IIH on Loopback0
00:41:12: ISIS-Adj: Sending L1 IIH on Loopback0
00:41:13: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:13: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:13: ISIS-Adj: Sending L2 IIH on Ethernet0
00:41:14: ISIS-Adj: Sending L2 IIH on Serial0
00:41:15: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:16: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:16: ISIS-Adj: Sending L1 IIH on Ethernet0
00:41:17: ISIS-Adj: Sending L1 IIH on Serial0
00:41:18: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:19: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:21: ISIS-Adj: Sending L2 IIH on Loopback0
00:41:21: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:22: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:22: ISIS-Adj: Sending L1 IIH on Loopback0
00:41:22: ISIS-Adj: Sending L2 IIH on Serial0
00:41:23: ISIS-Adj: Sending L2 IIH on Ethernet0
00:41:24: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:25: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:26: ISIS-Adj: Sending L1 IIH on Ethernet0
00:41:26: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:27: ISIS-Adj: Sending L1 IIH on Serial0
00:41:28: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:30: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:31: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:31: ISIS-Adj: Sending L2 IIH on Loopback0
00:41:32: ISIS-Adj: Sending L2 IIH on Ethernet0
00:41:32: ISIS-Adj: Sending L2 IIH on Serial0
00:41:32: ISIS-Adj: Sending L1 IIH on Loopback0
00:41:32: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01u a
00:41:34: ISIS-Adj: Rec L2 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01
00:41:35: ISIS-Adj: Sending L1 IIH on Ethernet0
00:41:35: ISIS-Adj: Rec L1 IIH from 800 (Serial0), cir type L1L2, cir id
0008.0008.0008.01ll
All possible debugging has been turned off
R6#
00:41:36: ISIS-Adj: Sending L1 IIH on Serial0
End Debug.....
-----Original Message-----
From: Chuck Larrieu
To: bbolles@creekpath.com; ccielab@groupstudy.com
Sent: 2/28/01 11:52 PM
Subject: RE: ISIS - weird problem with ethernet switch.
What do your debug isis adj outputs show?
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
bbolles@creekpath.com
Sent: Wednesday, February 28, 2001 7:45 PM
To: ccielab@groupstudy.com
Subject: ISIS - weird problem with ethernet switch.
I am having an odd problem getting ISIS to run successfully between two
2501
(IOS 12.0(13)) routers connected via an Ethernet segment through a
2912xl
switch. The odd thing is that other traffic (ping, RIP, OSPF, BGP) has
been
working fine between these two routers via the 2912, and on the same
exact
VLAN. If I connect the two routers together via a X-over ethernet
cable,
ISIS routing updates work and all is well.
As far as I can tell, my cabling is OK because other traffic works fine.
Just to be sure, I did try other known good cables with no success.
Likewise, I have forced the ports on the 2912 to 10M/half. I feel I am
running into some issue with broadcast or multicast packets not being
forwarded by the 2912xl switch.
Have any of you heard of an issue like this before? I searched the
archives
and the closest thing I came across was an MTU setting issue when using
ISIS
over Token Ring. I verified that my clns mtu setting is 1497 as
dictated by
the physical interface.
Thanks for your help,
Ben Bolles
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:17 GMT-3