From: xander (xander@xxxxxx)
Date: Thu Apr 12 2001 - 03:46:42 GMT-3
Hello Brian,
I think that using GRE tunels through NBMA for IS-IS is good technique
which avoid keepeng in mind about NBMA topology :-)
BD> The issue with ISIS over frame-relay is with a point-to-point subinterface
BD> to a multipoint subinterface or to a physical interface.
BD> I just retested all this in my lab and confirmed what works and what doesn'
t
BD> work.
BD> Works:
BD> 1. point-to-point subinterface to a point-to-point subinterface
BD> 2. physical interface to a physical interface
BD> 3. mulitpoint subinterface to a multipoint subinterface
BD> 4. multipoint subinterface to a physical interface
BD> Doesn't work:
BD> 1. point-to-point subinterface to a physical interface
BD> 2. point-to-point subinterface to a multipoint subinterface
BD> Basically the issue is with point-to-point interfaces sending point-to-poin
t
BD> IIH's (ISIS hellos) and multipoint or physical interfaces sending LAN IIH's
.
BD> There isn't a way to change the hello types.
BD> Also remember that if you're going to run ISIS over frame relay on a
BD> multipoint subinterface or a physical interface you'll need to map clns to
BD> the dlci.
BD> Brian Dennis
BD> CCIE #2210 (R&S)(ISP/Dial)
BD> CCSI #98640
BD> -----Original Message-----
BD> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
BD> Charlie Winckless
BD> Sent: Wednesday, April 11, 2001 12:28 PM
BD> To: 'Steven Weber'; Corey M. Ellis; CCIE Mailist
BD> Subject: RE: What Frame interfaces can IS-IS be configured on?
BD> I think the issue is that IS-IS doesn't have the 'tweaks'
BD> for setting network types that OSPF does. (*Thank you ECP-1*).
BD> Thus the interface must be either point to point or multipoint
BD> in order for this to operate.
BD> (If you need to run IS-IS across a link that's in this category,
BD> use a tunnel)
BD> -- Charlie
>> -----Original Message-----
>> From: Steven Weber [mailto:itweber@earthlink.net]
>> Sent: Wednesday, April 11, 2001 1:17 PM
>> To: Corey M. Ellis; CCIE Mailist
>> Subject: Re: What Frame interfaces can IS-IS be configured on?
>>
>>
>> I don't think it can be configured between a physical on one
>> end and a point
>> to point on the other. Everything else I have either tested
>> myself or have
>> seen tested and it works.
>> Steve
>> ----- Original Message -----
>> From: "Corey M. Ellis" <corey.m.ellis@home.com>
>> To: "CCIE Mailist" <ccielab@groupstudy.com>
>> Sent: Wednesday, April 11, 2001 2:59 PM
>> Subject: What Frame interfaces can IS-IS be configured on?
>>
>>
>> > I am trying to remember if there was a requirement as to
>> what type of
>> frame
>> > interface can run IS-IS. I think only p2p, and physical can, not
>> > multipoint.
>> >
>> > Does anybody know for sure.
>> >
>> > Thanks
>> >
>> > Corey Ellis
-- WBW, xander mailto:xander@adt.ru CCNA, CCNP+VoiceAccess, CCIE first attempt in Brussels 19-20, April, 2001...
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