From: Brian McGahan (brian@cyscoexpert.com)
Date: Tue Mar 18 2003 - 20:12:25 GMT-3
Stephen,
What exactly do you want to know about it?
Brian McGahan, CCIE #8593
Director of Design and Implementation
brian@cyscoexpert.com
CyscoExpert Corporation
Internetwork Consulting & Training
Toll Free: 866-CyscoXP
Outside US: 847.674.3392
Fax: 847.674.2625
> -----Original Message-----
> From: steve r [mailto:route2hell@hotmail.com]
> Sent: Tuesday, March 18, 2003 4:56 PM
> To: Brian McGahan; 'Bernard'; ccielab@groupstudy.com
> Subject: Re: ISIS INFO NEEDED
>
> Thanks I will read the RFCs
> Still looking for something else......
>
> ----- Original Message -----
> From: "Brian McGahan" <brian@cyscoexpert.com>
> To: "'steve r'" <route2hell@hotmail.com>; "'Bernard'"
<dollar@lvcm.com>;
> <ccielab@groupstudy.com>
> Sent: Tuesday, March 18, 2003 4:24 PM
> Subject: RE: ISIS INFO NEEDED
>
>
> > Stephen,
> >
> > There are two network types and three IS-IS hello (IIH) types in
> > IS-IS. The two network types are broadcast and point-to-point. The
> > three hello types are L1 LAN, L2 LAN, and point-to-point. Neighbors
> > cannot be adjacent unless the hello types match.
> >
> > Multipoint interfaces such as Ethernet, Token-Ring, and
> > Frame-Relay and ATM main and multipoint subinterfaces are network
type
> > broadcast, and use L1 and L2 LAN hellos, depending on which level
they
> > are running. Point to point interfaces such as ISDN, HDLC, and
> > point-to-point Frame-Relay and ATM are network type point-to-point,
and
> > send P2P hellos.
> >
> > As of 12.2(8)T you can send p2p hellos on a broadcast media by
> > using the 'isis network point-to-point'. Other than that, the
network
> > type is based on the interface type.
> >
> > There is plenty of info on IS-IS on CCO, you just have to know
> > where to look. You're not really going to find a better source for
it
> > unless you read the RFCs:
> >
> > RFC3373 - Three-Way Handshake for Intermediate System to
Intermediate
> > System (IS-IS) Point-to-Point Adjacencies
> > RFC3359 - Reserved Type, Length and Value (TLV) Codepoints in
> > Intermediate System to Intermediate System
> > RFC3277 - Intermediate System to Intermediate System (IS-IS)
Transient
> > Blackhole Avoidance
> > RFC2973 - IS-IS Mesh Groups
> > RFC2966 - Domain-wide Prefix Distribution with Two-Level IS-IS
> > RFC2763 - Dynamic Hostname Exchange Mechanism for IS-IS
> > RFC1195 - Use of OSI IS-IS for routing in TCP/IP and dual
environments
> > RFC1142 - OSI IS-IS Intra-domain Routing Protocol
> >
> > For more info on IS-IS on CCO:
> >
> >
http://www.cisco.com/pcgi-bin/Support/browse/psp_view.pl?p=Internetworki
> > ng:ISIS
> >
> >
> > HTH
> >
> > Brian McGahan, CCIE #8593
> > Director of Design and Implementation
> > brian@cyscoexpert.com
> >
> > CyscoExpert Corporation
> > Internetwork Consulting & Training
> > Toll Free: 866.CyscoXP
> > Fax: 847.674.2625
> >
> >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf
> > Of
> > > steve r
> > > Sent: Tuesday, March 18, 2003 12:27 PM
> > > To: Bernard; ccielab@groupstudy.com
> > > Subject: ISIS INFO NEEDED
> > >
> > > I been looking in cisco's sites and docs on ISIS and its topology
with
> > > frame
> > > point to point and multipoint to different interfaces and
> > > subinterfaces.(All
> > > I found was some what worthless)
> > > Does any one have any info OUTSIDE of Cisco on ISIS and its
behavior
> > with
> > > frame-relay interfaces
> > > OR Any Real World Experience on ISIS from ISPs.??
> > >
> > > (please hold back on the canned answer of use point to point to
point
> > to
> > > point, or interface to interface only ).
> > > The complex problems of ISIS using different interfaces types
have
> > > turned
> > > me on to shooting in dark, with trial and error to get things
working
> > with
> > > redistribution with other protocols.
> > >
> > > Stephen R
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