An IRB interface is logical so the member interfaces would have to consist of things that were already in the same layer-2 domain, such as a vlan sub interface.
On Apr 10, 2014, at 8:44 AM, Dave Humphrey <[email protected]> wrote: > You can use an IRB to get layer 3 connectivity into a VPLS, which is quite > useful. > > On 06/04/2014 17:51, "Keegan Holley" <[email protected]> wrote: > >> I¹ve often wondered what the point of an IRB on an ethernet only platform >> is. In the olden days IRB/CRB interfaces were used to bridge TDM >> interfaces into ethernet vlans to for the purposes of pure evil. With >> ethernet you can just add your physical interfaces to the same vlan. I >> suppose you could bridge two vlans together, but that¹s better done by >> moving the physical interfaces. >> >> I say this only to illustrate the fact that IRB¹s are different than >> RVI¹s, but probably unnecessary on an ethernet only platform. >> >> The newer feature guide makes no mention of IRB¹s. I did find a page for >> 10.2 which confirms old info. >> >> http://www.juniper.net/techpubs/software/junos-security/junos-security10.2 >> /junos-srx-jseries-support-reference/jd0e5921.html >> >> On Apr 5, 2014, at 2:32 PM, Morgan McLean <[email protected]> wrote: >> >>> Klaus, >>> >>> Yes its RVI on branch but its IRB on datacenter SRX; you can't even >>> configure vlans on them. >>> >>> Anyway, thanks all for the answers, just needed to verify I wasn't going >>> crazy. >>> >>> Thanks, >>> Morgan >>> >>> >>> On Sat, Apr 5, 2014 at 5:58 AM, Klaus Groeger <[email protected]> wrote: >>> >>>> On SRX branches one configures : >>>> >>>> >>>> >>>> >>>> interfaces { >>>> >>>> vlan { >>>> >>>> unit 123 { >>>> >>>> family inet { >>>> >>>> address 192.168.123.1/24 >>>> >>>> } >>>> >>>> } >>>> >>>> } >>>> >>>> ge-0/0/0 { >>>> >>>> unit 0 { >>>> >>>> family ethernet-switching >>>> >>>> vlan { >>>> >>>> members 123 >>>> >>>> } >>>> >>>> } >>>> >>>> } >>>> >>>> } >>>> >>>> } >>>> >>>> >>>> >>>> >>>> vlan { >>>> >>>> onetwothree { >>>> >>>> vlan-id 123 >>>> >>>> l3-interface vlan.123 >>>> >>>> } >>>> >>>> } >>>> >>>> >>>> >>>> >>>> On SRX IRBs are called RVIs (Routed VLAN Interfaces). This way one gets >>>> interfaces configured >>>> >>>> as switching interfaces with a routable address. You may apply most L2 >>>> options in branch SRX as needed, even LAGs and all the other stuff. >>>> >>>> >>>> >>>> >>>> Regards, Klaus >>>> _______________________________________________ >>>> juniper-nsp mailing list [email protected] >>>> https://puck.nether.net/mailman/listinfo/juniper-nsp >>>> >>> _______________________________________________ >>> juniper-nsp mailing list [email protected] >>> https://puck.nether.net/mailman/listinfo/juniper-nsp >> >> >> _______________________________________________ >> juniper-nsp mailing list [email protected] >> https://puck.nether.net/mailman/listinfo/juniper-nsp > _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
