From: Peter Van Oene (pvo@xxxxxxxxxxxx)
Date: Tue Sep 11 2001 - 09:58:58 GMT-3
This is a common misconception. ISIS does not use CLNS(CLNP) for transport. I
SIS uses a direct layer two encapsulation. No idea on the multicast drops thou
gh :)
*********** REPLY SEPARATOR ***********
On 9/7/2001 at 7:32 AM perkinsr@WellsFargo.COM wrote:
>Jason nailed it. I put a crossover cable between R5 and R6 and the
>adjacency formed. I don't know what the switch is doing to stop the
>multicasts. I setup eigrp and ospf using that switch which also use
>multicasts and those work fine. Those are IP to Ethernet multicasts while
>ISIS uses CLNS to Ethernet multicasts, I don't know if that makes a
>difference.
>
>Ray
>
>
>
>-----Original Message-----
>From: rsevier [mailto:rsevier@zealousolutions.com]
>Sent: Thursday, September 06, 2001 8:31 PM
>To: perkinsr@WellsFargo.COM
>Subject: RE: ISIS over Ethernet
>
>
>post some deb isis adj and let's see if we can find anything there.
>
>Raymond
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>perkinsr@WellsFargo.COM
>Sent: Thursday, September 06, 2001 3:33 PM
>To: ccielab@groupstudy.com
>Subject: ISIS over Ethernet
>
>
>I can't get ISIS adjacencies to form over ethernet. Connectivity and
>config
>are at the end. I have tried several different NET addresses from with the
>doccd or the Doyle book. All three routers will form ajacencies over
>serial
>and R4 has a token interface it will form an adjacency over. If I give the
>CLNS Enable command on the ether interfaces they will form an ES-IS
>adjacency. When doing debug ISIS adj-events every router says it is
>transmitting L1 and L2 IIH packets, but no of the routers see any hellos
>coming in. The interfaces are up/up, ping and cdp are working over these
>links.
>
>The problem boils down to all router say they are transmitting hellos but
>no
>of the routers say they are recieving hellos.
>
>
>
>
>3620(R4)-----2924-----3620(R6)
> |
> |
> |
> |
> 2514(R5)
>
>and the essential config info is:
>R4:
>clns routing
>
>interface Ethernet0/0
> ip address 40.40.40.4 255.255.255.0
> ip router isis
>
>router isis
> net 01.0000.0004.0004.00
>
>R5:
>clns routing
>
> interface Ethernet0
> ip address 40.40.40.5 255.255.255.0
> ip router isis
>
>router isis
> net 01.0000.0005.0005.00
>
>R6:
>clns routing
>
>interface Ethernet0/0
> ip address 40.40.40.6 255.255.255.0
> ip router isis
>
>router isis
> net 01.0000.0006.0006.00
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