From: Brian Lodwick (xpranax@xxxxxxxxxxx)
Date: Fri Oct 05 2001 - 15:26:44 GMT-3
We have actually tried this, but setting the circuit-type to Level-1 on the
ethernet interface as I have done, I believe will just keep level-2 updates
from being advertised on this area and this area will route out of the area
via a default route. Updates for addresses in this area should still be sent
out to other Level-2 routers, and actually in this schenario are in fact
being sent out to the Level-2 interface on r2 to the Level-2 interface on r8
(interface r2 ATM1/0 - r8 ATM2/0.1)
r8#ip
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter
area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
i L2 172.16.20.0/28 [115/20] via 172.16.70.3, ATM2/0.1
C 172.16.70.0/24 is directly connected, ATM2/0.1
>From: "Bob Dixon" <bobdixon@mediaone.net>
>To: "Brian Lodwick" <xpranax@hotmail.com>
>Subject: Re: IS-IS problems on an ATM multipoint config
>Date: Fri, 5 Oct 2001 14:17:50 -0400
>
>Just a wild guess, but could it be your circuit types? I noticed the e0 on
>r2 is defined as a level-1 and the atm links are level-2. The routers'
>is-types are not defined so I think that they will default to level-1-2.
>Have you tried changing the circuit-type of eo on r2 to level-2? I don't
>now
>know why that would correct the problem, but it would be interesting to see
>if it did while researching it further.
>
>Thanks,
>Bob
>
>----- Original Message -----
>From: Brian Lodwick <xpranax@hotmail.com>
>To: <ccielab@groupstudy.com>
>Sent: Friday, October 05, 2001 1:51 PM
>Subject: IS-IS problems on an ATM multipoint config
>
>
> > I am getting frustrated with this IGP. I have decided to make up this
>crazy
> > lab to key in on my difficult areas and one part of it is causing me
> > difficulties. It is a hub spoke topology with ATM PVC's running IS-IS
>over
> > them. The routers are r7, r8, and r2. r8 is the hub and has a multipoint
> > sub-interface to the spokes r2, and r7. r2's ethernet 0/1/0
> > (172.16.20.0/24)is participating in IS-IS. What I end up getting is on
>r8
>I
> > receive the route for 172.16.20.1/24, but not on r7. When I debug isis
> > update-packets and isis spf-events on r7 I don't get anything at all, so
>I
> > know it is not getting the update and rejecting it, it just isn't
>receiving
> > it at all for some reason. Can anyone figure out what I am doing wrong?
>I
> > have added the configs below for analysis.
> > Thanks in advance!
> > >>>Brian
> >
> > Hub:
> > r8#sh run
> > Building configuration...
> >
> > Current configuration : 1305 bytes
> > !
> > version 12.1
> > no service single-slot-reload-enable
> > service timestamps debug uptime
> > service timestamps log uptime
> > no service password-encryption
> > !
> > hostname r8
> > !
> > logging rate-limit console 10 except errors
> > !
> > !
> > !
> > ip subnet-zero
> > !
> > !
> > no ip finger
> > no ip domain-lookup
> > !
> > no mgcp timer receive-rtcp
> > !
> > !
> > call rsvp-sync
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > interface ATM2/0
> > no ip address
> > no atm scrambling cell-payload
> > atm uni-version 3.1
> > no atm ilmi-keepalive
> > !
> > interface ATM2/0.1 multipoint
> > ip address 172.16.70.2 255.255.255.0
> > ip router isis
> > pvc 7/15
> > protocol ip 172.16.70.1 broadcast
> > protocol clns 49.0000.0007.0007.0007.00 broadcast
> > broadcast
> > encapsulation aal5snap
> > !
> > pvc 8/15
> > protocol ip 172.16.70.3 broadcast
> > protocol clns 49.0000.0002.0002.0002.00 broadcast
> > broadcast
> > encapsulation aal5snap
> > !
> > isis circuit-type level-2-only
> > isis priority 127 level-2
> > isis hello-multiplier 120
> > isis hello-interval 40
> > !
> > !
> > router isis
> > net 49.0000.0008.0008.0008.00
> > !
> > ip kerberos source-interface any
> > ip classless
> > no ip http server
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > snmp-server engineID local 80000009FF0000A100E4E5B4
> > snmp-server manager
> > !
> > dial-peer cor custom
> > !
> > !
> > !
> > !
> > alias exec ip sh ip route
> > alias exec int sh ip int brief
> > alias exec ipx sh ipx route
> > !
> > line con 0
> > transport input none
> > line aux 0
> > line vty 0 4
> > login
> > !
> > end
> >
> > Spoke:
> > r7#sh run
> > Building configuration...
> >
> > Current configuration : 2003 bytes
> > !
> > version 12.1
> > no service single-slot-reload-enable
> > service timestamps debug uptime
> > service timestamps log uptime
> > no service password-encryption
> > !
> > hostname r7
> > !
> > logging rate-limit console 10 except errors
> > !
> > !
> > !
> > ip subnet-zero
> > !
> > !
> > no ip finger
> > no ip domain-lookup
> > !
> > no mgcp timer receive-rtcp
> > !
> > !
> > call rsvp-sync
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > controller T1 1/0
> > framing esf
> > linecode b8zs
> > channel-group 0 timeslots 1-24
> > !
> > controller T1 1/1
> > !
> > !
> > interface ATM0/0
> > ip address 172.16.70.1 255.255.255.0
> > ip router isis
> > no atm scrambling cell-payload
> > no atm ilmi-keepalive
> > pvc 5/15
> > protocol ip 172.16.70.2 broadcast
> > protocol ip 172.16.70.3 broadcast
> > protocol clns 49.0000.0002.0002.0002.00 broadcast
> > protocol clns 49.0000.0008.0008.0008.00 broadcast
> > broadcast
> > encapsulation aal5snap
> > !
> > isis circuit-type level-2-only
> > isis priority 0 level-2
> > isis hello-multiplier 120
> > isis hello-interval 40
> > !
> > interface Serial1/0:0
> > no ip address
> > encapsulation frame-relay
> > frame-relay traffic-shaping
> > !
> > interface Serial1/0:0.1 point-to-point
> > ip address 172.16.30.1 255.255.255.0
> > ip ospf network point-to-multipoint
> > frame-relay interface-dlci 701
> > class vofr
> > vofr cisco
> > !
> > !
> > router ospf 100
> > log-adjacency-changes
> > network 172.16.30.1 0.0.0.0 area 0
> > !
> > router isis
> > net 49.0000.0007.0007.0007.00
> > !
> > ip kerberos source-interface any
> > ip classless
> > no ip http server
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > map-class frame-relay vofr
> > no frame-relay adaptive-shaping
> > frame-relay fair-queue
> > frame-relay voice bandwidth 32000
> > frame-relay fragment 80
> > !
> > snmp-server engineID local 80000009FF0000A1012D34BF
> > snmp-server manager
> > !
> > voice-port 3/0/0
> > !
> > voice-port 3/0/1
> > !
> > voice-port 3/1/0
> > !
> > voice-port 3/1/1
> > !
> > dial-peer cor custom
> > !
> > !
> > !
> > dial-peer voice 777 pots
> > destination-pattern 777
> > port 3/1/0
> > !
> > dial-peer voice 111 vofr
> > destination-pattern 111
> > session target Serial1/0:0 701
> > !
> > !
> > alias exec ip sh ip route
> > alias exec int sh ip int brief
> > alias exec ipx sh ipx route
> > !
> > line con 0
> > transport input none
> > line aux 0
> > line vty 0 4
> > login
> > !
> > end
> >
> >
> > Spoke:
> > r2#sh run
> > Building configuration...
> >
> > Current configuration : 2663 bytes
> > !
> > version 12.2
> > no service single-slot-reload-enable
> > service timestamps debug uptime
> > service timestamps log uptime
> > no service password-encryption
> > !
> > hostname r2
> > !
> > logging rate-limit console 10 except errors
> > !
> > ip subnet-zero
> > no ip finger
> > no ip domain-lookup
> > !
> > ip cef
> > no ip dhcp-client network-discovery
> > frame-relay switching
> > call rsvp-sync
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > controller T1 0/0/0
> > framing esf
> > clock source internal
> > linecode b8zs
> > channel-group 0 timeslots 1-24 speed 56
> > !
> > controller T1 0/0/1
> > framing esf
> > linecode b8zs
> > !
> > controller T1 0/0/2
> > framing esf
> > linecode b8zs
> > !
> > controller T1 0/0/3
> > framing esf
> > linecode b8zs
> > !
> > !
> > interface Serial0/0/0:0
> > no ip address
> > encapsulation frame-relay
> > no ip route-cache distributed
> > frame-relay intf-type dce
> > frame-relay route 701 interface Serial3/1 107
> > !
> > interface Ethernet0/1/0
> > ip address 172.16.20.1 255.255.255.240
> > ip router isis
> > no ip route-cache distributed
> > no keepalive
> > isis circuit-type level-1
> > isis hello-multiplier 1000
> > isis hello-interval 300
> > !
> > interface Ethernet0/1/1
> > no ip address
> > no ip route-cache distributed
> > shutdown
> > !
> > interface Ethernet0/1/2
> > no ip address
> > no ip route-cache distributed
> > shutdown
> > !
> > interface Ethernet0/1/3
> > no ip address
> > no ip route-cache distributed
> > shutdown
> > !
> > interface ATM1/0
> > ip address 172.16.70.3 255.255.255.0
> > ip router isis
> > no atm ilmi-keepalive
> > pvc 6/15
> > protocol ip 172.16.70.1 broadcast
> > protocol ip 172.16.70.2 broadcast
> > protocol clns 49.0000.0007.0007.0007.00 broadcast
> > protocol clns 49.0000.0008.0008.0008.00 broadcast
> > broadcast
> > encapsulation aal5snap
> > !
> > isis circuit-type level-2-only
> > isis priority 0 level-2
> > isis hello-multiplier 120
> > isis hello-interval 40
> > !
> > interface ATM2/0
> > no ip address
> > shutdown
> > no atm ilmi-keepalive
> > !
> > interface Serial3/0
> > no ip address
> > shutdown
> > !
> > interface Serial3/1
> > no ip address
> > encapsulation frame-relay
> > frame-relay intf-type dce
> > frame-relay route 103 interface Serial3/2 301
> > frame-relay route 107 interface Serial0/0/0:0 701
> > !
> > interface Serial3/2
> > no ip address
> > encapsulation frame-relay
> > clockrate 2000000
> > frame-relay intf-type dce
> > frame-relay route 301 interface Serial3/1 103
> > !
> > interface Serial3/3
> > no ip address
> > shutdown
> > !
> > interface Serial3/4
> > no ip address
> > shutdown
> > !
> > interface Serial3/5
> > no ip address
> > shutdown
> > !
> > interface Serial3/6
> > no ip address
> > shutdown
> > !
> > interface Serial3/7
> > no ip address
> > shutdown
> > !
> > router isis
> > net 49.0000.0002.0002.0002.00
> > !
> > ip kerberos source-interface any
> > ip classless
> > no ip http server
> > !
> > !
> > !
> > alias exec ip sh ip route
> > alias exec ipx sh ipx route
> > alias exec int sh ip int brief
> > !
> > line con 0
> > exec-timeout 0 0
> > transport input none
> > line aux 0
> > line vty 0 4
> > login
> > !
> > end
> >
> >
> >
> >
This archive was generated by hypermail 2.1.4 : Thu Jun 20 2002 - 22:33:14 GMT-3