Routing

Hi everyone....,

I need to know why is it necessary to define "rib inet6.0" while defining IPv6 static route....???

Is it by design itself or is there a reason behind doing so...???

Hi

If you try to define IPv6 static under [routing-options static] it says "invalid destination for family inet".

So this config branch is for inet (=IPv4) only. That's why you need some extra typing so that Junos

understands it is IPv6.

So both, this is by design, and there is a reason. In some cases you will need to specify

other RIBs (such as inet.3 for MPLS route resolution) and this is done via similar syntax.

Hi Pratik,

Its a Juniper desing architecture.

The Junos OS routing architecture supports multiple routing instances, each with its
collection of Routing Information Base (RIB) tables, interfaces, and routing protocols. This
RIB group construct allows the exchange of routes among tables.

Here the  Default RIBs:

RIB name                Use                                    Family

inet.0                        Unicast routing                   IPv4
inet6.0                      Unicast routing                  IPv6
inet.3                        Next-hop resolution           IPv4
inet6.3                      Next-hop resolution          IPv6
inet.1                        Multicast routing                IPv4
inet.2                        Multicast RPF                     IPv4
mpls.0                     MPLS labels                       MPLS
iso.0                        CLNS routing                      ISO
bgp.l3vpn.0            inet-vpn                               INET-VPN
bgp.l2vpn.0            l2vpn                                    L2VPN

Some RIB tables within the master instance.

By default, a collection of RIBs is present in the master instance. To provide unique forwarding contexts, additional instances can be created, each one with its own set of RIBs. A forwarding context is understood as the combination

of a forwarding table with multiple RIBs feeding it with routing information.

Best Regards,

Suresh

JNCIP-ENT,JNCIS-SEC

Thank you, Guys.....point duely noted.

Thanks for your time.....!!!