[HECnet] Maximum number of L2 routers?

[Hans Vlems]

Paul, so if more decnet routers are heard of on the land, what happens with:
A) the list that gets transmitted is truncated, the 32 most recent    routers and the transmitting host itself are on it?
B) the locally maintained list, is that also limited to 33 entries?
Hans

Verzonden  vanaf  mijn  BlackBerry  10-smartphone.
   Origineel bericht   
Van: Paul_Koning at Dell.com
Verzonden: zondag 1 maart 2015 23:35
Aan: hecnet at Update.UU.SE
Beantwoorden: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Maximum number of L2 routers?


On Feb 28, 2015, at 3:00 PM, Jordi Guillaumes i Pons <jg at jordi.guillaumes.name> wrote:
...
Use the SET CIRCUIT command with the MAXIMUM ROUTERS parameter to set the maximum number of routers permitted on a particular Ethernet or FDDI circuit. The largest number of routers allowed on a LAN is 33, which is the default value of the MAXIMUM ROUTERS parameter. 

Interestingly enough, the DECnet network management architecture spec says the limit is 255. 33 is correct, actually; the reason is that an Ethernet router hello message contains a list of the other routers heard by this router, and the encoding of the packet limits the length of that list to 33 entries.

paul