Hi Team, I would like to know, whether in IS-IS, a system id can be 0000.0000.0000 or it is an invalid value for sys I'd ?
As per ISO 10589 a system id can be of 1 to 8 bytes long, but doesn't mention explicitly whether SYS ID of 0000.0000.0000 could be invalid. Also as per RFC 3784, it says System id is typically of 6 bytes, but doesn't talk about any invalid option. The reason I am asking this is that Juniper defines a SYS ID of 0000.0000.0000 as invalid. https://www.juniper.net/documentation/us/en/software/junos/is-is/topics/concept/is-is-routing-overview.html This can cause issues in inter-operability as some vendors like Cisco doesn't define a SYS-ID of 0000.0000.0000 as invalid. I would appreciate your response on this. Regards Jaideep Choudhary On Mon, 13 Jun, 2022, 11:08 pm Cindy Morgan via RT, <supp...@ietf.org> wrote: > Hi Jaideep, > > You have reached the IETF Secretariat, which is the administrative branch > of the IETF, and as such, we are not qualified to answer your technical > questions. > > You might have better luck if you try posing your question to the Link > State Routing (LSR) Working Group ( > https://datatracker.ietf.org/wg/lsr/about/). LSR was formed by merging > the ISIS and OSPF WGs and assigning all their existing adopted work at the > time of chartering to LSR. Their mailing list address is lsr@ietf.org. > > Best regards, > Cindy > > On Mon Jun 13 10:10:54 2022, jaideepchoudhar...@gmail.com wrote: > > Hi Team, > > > > I would like to know, whether in IS-IS, a system id can be 0000.0000.0000 > or it is an invalid value for sys I'd ? > > > > As per ISO 10589 a system id can be of 1 to 8 bytes long, but doesn't > mention explicitly whether SYS ID of 0000.0000.0000 could be invalid. > > > > Also as per RFC 3784, it says System id is typically of 6 bytes, but > doesn't talk about any invalid option. > > > > The reason I am asking this is that Juniper defines a SYS ID of > 0000.0000.0000 as invalid. > > > > > > > https://www.juniper.net/documentation/us/en/software/junos/is-is/topics/concept/is-is-routing-overview.html > > > > This can cause issues in inter-operability as some vendors like Cisco > doesn't define a SYS-ID of 0000.0000.0000 as invalid. > > > > I would appreciate your response on this. > > > > Regards > > Jaideep Choudhary > > > > > > > >
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