It will if they both have different IP subnets, thus
the floating route has it's own next hop.
If you want to go further you can use route-maps and
do policy routing. If PVC1 was down you could match on
the sub interface that was up and change the next hop.
Same for other PVC...
Why are you backing up one PVC with another PVC on the
same physical circuit? I work with Frame regularly and
a majority of the time frame outages involve the
entire circuit (loss of signalling / LMI, circuit
down, line problems, etc) and not just one PVC, unless
each PVC is going to a different site/spoke and the
spoke was having line/LMI issues. If this were the
case then routing traffic for this site over the other
PVC might make sense if that spoke/site had a link to
the original destination or served as a backup for
that location being down.
--- Adam Wang <[EMAIL PROTECTED]> wrote:
> Thanks for all your input on setting up a floating
> static suggestion, but the 2 PVCs that I have are
> both active and in production, and each is carrying
> different type of traffic.
>
> They are both acting as primary links. I want to
> set up something that if one fail, it will jump to
the
> other one. I don't think floating static will work
> in
> this case.
>
> Adam
>
>
>
> --- Kelly D Griffin <[EMAIL PROTECTED]> wrote:
> > The way my company does it is to weight routes for
> > the two PVC's.
> >
> > Serial0/0.1 point-to-point
> > ip address 192.168.255.1 255.255.255.252
> > no ip route-cache
> > no cdp enable
> > frame-relay interface-dlci 20
> > !
> > Serial0/0.2 point-to-point
> > ip address 192.168.255.5 255.255.255.252
> > no ip route-cache
> > no cdp enable
> > frame-relay interface-dlci 21
> > !
> > ip route 10.0.0.0 255.0.0.0 192.168.255.2
> > ip route 10.0.0.0 255.0.0.0 192.168.255.6 200
> > !
> > end
> > wr
> >
> > This says to route the traffic over S0/0.1 as it
> is
> > directly connected.
> > Route the traffic over S0/0.2 if the primary link
> > should become unreachable.
> > You have to be careful with the administrative
> > distance on the backup route.
> > If you are running a routing protocol (OSPF, RIP,
> > etc.) you will have to
> > take into account what the default distances are
> for
> > these protocols. Keep
> > in mind that a route that points to an interface
> is
> > distance 0 and a route
> > to an IP address is distance 1.
> >
> > Kelly D Griffin, CCNA, CCDA
> > Network Engineer
> > Kg2 Network Design
> > http://www.kg2.com
> >
> >
> > ----- Original Message -----
> > From: "Adam Wang" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, February 14, 2001 10:08 AM
> > Subject: backup subinterface on another
> subinterface
> >
> >
> > > Hi group,
> > >
> > > I have 2 PVCs setup using Frame Relay on a
> serial
> > > interface with 2 subinterafces, and I want these
> 2
> > > subinterfaces to backup each other when 1 fails.
> > >
> > > I did backup interface s0.2, but it won't allow
> a
> > > subinterface on the backup command, only the
> > physical
> > > interface. So backup interface s0 is possible.
> > >
> > > Why is that and how can I do this
> > >
> > >
> > > Thanks in advance
>
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