Re: EIGRP Configuration Help

On Aug 16, 3:32 pm, "Gerard Gallagher" <gerard.gallag...@xxxxxxxxx>
wrote:
Merv,
Yes, all single-homed locations are configured as stub.

Total routers in the region of 40-50
Subnets again much similar.
The network design is archaic and a relic of the past in terms of subnets,
as each location was allocated a 10.x.0.0/16 subnet. This would not be too
bad, but there are basically 3 core locations however the spoked sites off
these locations are not continguous in terms of IP subnets so cannot
summarise all that easily.

Example - one core location has 10.11.x.x/16, and spoked from this are
10.25,10.50,10.133, /16

Hope this makes sense and thanks

"Merv" <merv.hr...@xxxxxxxxxx> wrote in message

news:1187286601.604976.195080@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx



If you have remote routers that are single-homed then implement EIGRP
stub routing on each of these routers.

see
http://cco.cisco.com/en/US/products/sw/iosswrel/ps1829/products_featu...

An EIGRP stub router is not queried about routes that it could not
know anything about.

The control of EIGRP query boundary is fairly important in EIGRP
network design.

How many routers in total ?

How many IP subnets in total ?

Most routers can handle pretty large routing tables, so long as you
summarize down to /16s (presuming you dont have /24s outside of a
single geographical area), that should be fine. Truthfully, even if
you had all /24s, it shouldnt be that bad unless this is a retail
network and you have 1000s of networks. At this point, I would try to
summarize to /16s, or /17s-20s if /16s are too broad, and you should
be fine. I wouldn't go crazy, as any decent router should handle a
good amount of routes.

.

Relevant Pages

  • Re: EIGRP Configuration Help
    ... all single-homed locations are configured as stub. ... The network design is archaic and a relic of the past in terms of subnets, as each location was allocated a 10.x.0.0/16 subnet. ... stub routing on each of these routers. ...
    (comp.dcom.sys.cisco)
  • Re: EIGRP Configuration Help
    ... all single-homed locations are configured as stub. ... Subnets again much similar. ... The network design is archaic and a relic of the past in terms of subnets, ... Most routers can handle pretty large routing tables, ...
    (comp.dcom.sys.cisco)
  • Re: Best solution to segment subnets
    ... i have a no clear idea of this scenario, maybe so nat routers are confusing me. ... subnet 1 and subnet 2 are two room in the second floor, i need isolate them from subnet 3 and from each other. ... Three subnets need internet. ... It won't isolate the subnets if the switches are uplinked to each other. ...
    (microsoft.public.win2000.ras_routing)
  • Re: Best approach for broadcasting a notifivation to another progr
    ... I think that normally routers block all broadcasts by default, ... I have found that many admins will allow broadcasts between them (at least ... As for the Terminal server issue, I don't know how that would do. ... I have a customer that has two subnets joined by Cisco pix ...
    (microsoft.public.vb.general.discussion)
  • Re: Network Configuration
    ... You have the physical topology, the logical topology, and ... cross routers, therefore the routers will recover lost bandwith. ... > We currently have three router/hub/switches one, for each floor of our> building. ... I am contemplating going to DHCP and am> interested in knowing if there is a technical reason, why I should try to> keep the subnets focused on each floor. ...
    (microsoft.public.win2000.networking)