[c-nsp] High Density T1 Question

[Tim Jackson]

We used MLPPP for any multiple links using the box, but for the most part
everything we used it for was channelized DS1s... It even supported
LSB/Voice DS0s on the xconnects... It kinda made for some interesting
troubleshooting, however... The provider side was always up and always had
an arp entry (the box answers ARP for ANYTHING, and maps the ARP in the box
by a management IP)... You always had to check in the VLX400 itself to see
if something was up or down... It also had some other quirks with doing BERT
and loops on T1s, but that's a different story...

--
Tim

On 1/23/07, Chris Adams <cmadams at hiwaay.net> wrote:
>
> Once upon a time, Matthew Crocker <matthew at crocker.com> said:
> > I have a Seranoa WANPort,  great 1U box,  it takes 12 x DS3 (HDLC,
> > PPP or FR) and converts them into 336 VLANs on a GigE.  The GigE goes
> > into a 7206 NPE-G1 and each VLAN gets an interface on the router.
>
> How do you handle link state monitoring in that kind of setup?  For
> example, we've got some customers with primary/backup links, and we just
> route their IPs to the primary link and the backup link (with a higher
> metric).  When the primary goes down, the route goes with it and the
> backup route takes over.
>
> Do you have to do dynamic routing with customers to get that effect with
> your type of setup?
> --
> Chris Adams <cmadams at hiwaay.net>
> Systems and Network Administrator - HiWAAY Internet Services
> I don't speak for anybody but myself - that's enough trouble.
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