From: Johnny Dedon (johnny.dedon@xxxxxxxxxx)
Date: Wed May 23 2001 - 14:50:11 GMT-3
I would first of all add the command no bridge 45 bridge ip. I think this
is where you are having the problem. OSPF adjacencies are formed using the
ip multicast address but they are only intended to be formed on a local net.
After the initial arp, the multicast mac address is used for communication
since both end points are on the same subnet. I think this is why it will
work if you get the adjacencies up first and then add the pim statements.
The arp cache is already populated. If you reload then they must arp all
over again.
Just a guess but try that and see if it works.
I would also be curious to see if you get the same results using dense-mode.
Johnny Dedon
Senior Staff Consultant
Exodus Professional Services
johnny.dedon@exodus.net
www.exodus.net
----- Original Message -----
From: "Devender Singh" <devender.singh@cmc.cwo.net.au>
To: "Tim" <tschlos1@ix.netcom.com>; <ccielab@groupstudy.com>
Sent: Wednesday, May 23, 2001 8:19 AM
Subject: RE: PIM sparse mode configuration w/IRB and ISL trunks
> Very interesting finding. I seem to think that this could have some think
to
> have Ospf hellos being multicast as well( not sure).
>
> Devender Singh
> BE(Hons), CCNP
> IP Solution Specialist
>
>
> -----Original Message-----
> From: Tim [mailto:tschlos1@ix.netcom.com]
> Sent: Wednesday, 23 May 2001 9:03
> To: ccielab@groupstudy.com
> Subject: PIM sparse mode configuration w/IRB and ISL trunks
>
>
> I am attempting to configure multicast routing on a 2600 running version
> 12.09. The router has a fast ethernet interface configured with multiple
> VLAN's via ISL trunking. I am also running IRB (bridge group 45) on two
> subinterfaces fa0/0.4 and fa0/0.5. My OSPF adjacensies are woring
properly
> as
> well as the BVI interface prior to enable multicast routing. After I
enable
> the multicast routing on the subinterface and turn on cgmp, my OSPF
neighbor
> adjacensies attached to the fa0/0.4 and fa0/0.5 subinterfaces disappear.
I
> ran several debugs (debug ip ospf adj and debug ip ospf events) but could
> find
> nothing wrong. As soon as I take off the command ip pim sparse-mode and
the
> ip cgmp, the ospf adjacensies are formed.
>
> Also, if I put the pim commands back into the router, the OSPF adjacensies
> remain active. However, when I reload the router, the neighbor
adjacencies
> no longer form.
>
> Any thoughts on what I may be doing wrong or if this could be a bug with
the
> IOS. I realize that I doing quite a few things with these interfaces, but
> you
> never know what they may ask you in the lab.
>
> Following is the config I was working with for the 2600 router:
>
> !
> memory-size iomem 10
> ip subnet-zero
> no ip domain-lookup
> !
> ip multicast-routing
> ip dvmrp route-limit 20000
> ipx routing 0007.0007.0007
> bridge irb
> !
> dlsw local-peer peer-id 150.2.1.7
> dlsw remote-peer 0 tcp 150.2.1.5
> dlsw bridge-group 1
> !
> !
> voice-port 1/0/0
> !
> voice-port 1/0/1
> !
> !
> interface Loopback0
> ip address 150.2.1.7 255.255.255.255
> no ip directed-broadcast
> !
> interface FastEthernet0/0
> no ip address
> no ip directed-broadcast
> full-duplex
> !
> interface FastEthernet0/0.1
> encapsulation isl 1
> ip address 192.168.0.3 255.255.255.0
> no ip redirects
> no ip directed-broadcast
> ip pim sparse-mode
> ip cgmp
> bridge-group 45
> !
> interface FastEthernet0/0.2
> encapsulation isl 2
> ip address 150.1.2.7 255.255.255.128
> no ip redirects
> no ip directed-broadcast
> ip pim sparse-mode
> ip cgmp
> ipx encapsulation NOVELL-ETHER
> ipx network 272
> !
> interface FastEthernet0/0.3
> encapsulation isl 3
> ip address 150.1.3.7 255.255.255.128
> no ip redirects
> no ip directed-broadcast
> ip pim sparse-mode
> ip cgmp
> !
> interface FastEthernet0/0.4
> encapsulation isl 4
> ip address 150.1.4.7 255.255.255.192
> no ip redirects
> no ip directed-broadcast
> ip pim sparse-mode
> ip ospf cost 5
> ip cgmp
> no ip mroute-cache
> bridge-group 45
> !
> interface FastEthernet0/0.5
> encapsulation isl 5
> ip address 150.1.5.7 255.255.255.0
> no ip redirects
> no ip directed-broadcast
> ip pim dense-mode
> ip cgmp
> bridge-group 45
> !
> interface Serial0/0
> no ip address
> no ip directed-broadcast
> no ip mroute-cache
> shutdown
> no fair-queue
> !
> interface Serial0/1
> no ip address
> no ip directed-broadcast
> shutdown
> !
> interface BVI45
> no ip address
> no ip directed-broadcast
> ipx network 45
> !
> router ospf 1
> network 150.1.2.0 0.0.0.127 area 0
> network 150.1.3.0 0.0.0.127 area 0
> network 150.1.4.0 0.0.0.63 area 2
> network 150.1.5.0 0.0.0.255 area 2
> network 150.2.1.7 0.0.0.0 area 0
> network 192.168.0.0 0.0.0.255 area 4
> log-adjacency-changes
> !
> ip classless
> no ip http server
> ip pim send-rp-announce FastEthernet0/0.4 scope 16
> ip pim send-rp-announce FastEthernet0/0.5 scope 16
> !
> !
> !
> !
> !
> bridge 1 protocol ieee
> bridge 45 protocol ieee
> bridge 45 route ipx
> !
>
>
> Thanks for an assistance,
> Tim Schlosser
> **Please read:http://www.groupstudy.com/list/posting.html
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