Switching

The documentation says that enabling uRPF on one interface enables it on all interfaces.  However, it discusses enabling it on an actual interface and not an RVI.  Can I enable it on just a subset of RVIs without affecting traffic on others?  During initial testing, I see that when I enable it on a single RVI, it does not appear to be enabled on the other one in my switch:

root@ex4200-1# run show interfaces vlan  
Physical interface: vlan, Enabled, Physical link is Up
  Interface index: 129, SNMP ifIndex: 508
  Type: VLAN, Link-level type: VLAN, MTU: 9216, Speed: 1000mbps
  Device flags   : Present Running
  Link type      : Full-Duplex
  Link flags     : None
  Current address: 28:c0:da:38:90:c0, Hardware address: 28:c0:da:38:90:c0
  Last flapped   : Never
    Input packets : 93924
    Output packets: 35813

  Logical interface vlan.1 (Index 67) (SNMP ifIndex 600)
    Flags: SNMP-Traps 0x0 Encapsulation: ENET2
    Input packets : 92215
    Output packets: 35074
    Protocol inet
      Flags: None
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 192.168.52.0/29, Local: 192.168.52.1,
        Broadcast: 192.168.52.7
    Protocol iso
      Flags: Is-Primary, User-MTU

  Logical interface vlan.1300 (Index 97) (SNMP ifIndex 613)
    Flags: SNMP-Traps 0x0 Encapsulation: ENET2
    Input packets : 0
    Output packets: 5
    Protocol inet
      Flags: User-MTU, uRPF
      Addresses, Flags: Is-Preferred Is-Primary
        Destination: 192.168.1/24, Local: 192.168.1.1, Broadcast: 192.168.1.255

Is this giving me all the information here?  I'm running 10.4R4.5 at the moment.

hi,

On EX3200 and EX4200 switches, unicast RPF is enabled globally on all switch interfaces once you

enable it on any interface.

Good description:

http://www.juniper.net/techpubs/en_US/junos10.4/topics/task/configuration/unicast-rpf-ex-series-cli.html

Note in frame says:

Enabling unicast RPF explicitly on only one interface ...  The drawback to this approach is that the switch displays the flag that indicates that unicast RPF is enabled only on interfaces on which unicast RPF is explicitly enabled, so even though unicast RPF is enabled on all interfaces, this status is not displayed.

Disabling unicast RPF:  http://www.juniper.net/techpubs/en_US/junos10.4/topics/task/configuration/unicast-rpf-ex-series-disabling-cli.html

jtb

+1 for my reading comprehension.

Thanks!