[j-nsp] weird subinterfaces on T640

[alain.briant at bt.com]

Hi plz(runt sysu)!

I can see the same on M7i on a 1 port GE pic card and also on the built-in GE interface
 
ge-0/0/0.101            up    up   inet     192.168.1.19/28   
ge-0/0/0.102            up    up   inet     192.168.3.19/28   
ge-0/0/0.32767          up    up  
...
ge-1/3/0.100            up    up   inet     192.168.5.19/28   
ge-1/3/0.200            up    up   inet     192.168.14.22/28  
ge-1/3/0.32767          up    up  

Also if you have a look you will see some kind of similar stuff on loopback:

lo0.0                   up    up   inet     10.0.0.1          --> 0/0
lo0.16385               up    up   inet    

This is seen in version 8.1R4E3
And Like you I don't have this configured
I think this is just automatically inserted in the way the router is working and you don't have to worry about it!

Regards
Alain



-----Message d'origine-----
De : juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] De la part de Plz
Envoyé : lundi 14 avril 2008 04:51
À : juniper-nsp at puck.nether.net
Objet : [j-nsp] weird subinterfaces on T640

there always ll be a subinterface ".32767" on the physical inteface where i configure a subinterface( not 32767 ) but when i run show configuration there is nothing about this 32767 subinterface.
version:8.3R3.2, pic 10*1GE(LAN), 1000BASE,  T640 have anyone seen this ?  or i m missing something?



aa at aa> show configuration interfaces ge-3/1/4 vlan-tagging; unit 51 {
    vlan-id 51;
    family inet {
        address 211.136.3.109/30;
    }
}
{master}
aa at aa> show configuration interfaces ge-3/1/5 vlan-tagging; unit 100 {

    vlan-id 100;
    family inet {
        address 211.136.1.29/30;
    }
    family iso;
}
unit 200 {

    vlan-id 200;
    family inet {
        address 211.136.1.61/30;
    }
    family iso;
}
unit 300 {

    vlan-id 300;
    family inet {
        address 211.136.1.69/30;
    }
    family iso;
}
unit 400 {

    vlan-id 400;
    family inet {
        address 211.136.1.37/30;
    }
    family iso;
}
unit 500 {

    vlan-id 500;
    family inet {
        address 211.136.1.45/30;
    }
    family iso;
}
unit 600 {

    vlan-id 600;
    family inet {
        address 211.136.1.53/30;
    }
    family iso;
}
unit 700 {

    vlan-id 700;
    family inet {
        address 211.136.1.77/30;
    }
    family iso;
}

{master}
aa at aa> show interfaces terse ge-3/1/4
Interface               Admin Link Proto    Local                 Remote
ge-3/1/4                up    down
ge-3/1/4.51             up    down inet     211.136.3.109/30
ge-3/1/4.32767          up    down

{master}
aa at aa> show interfaces terse ge-3/1/5
Interface               Admin Link Proto    Local                 Remote
ge-3/1/5                up    up
ge-3/1/5.100            up    up   inet     211.136.1.29/30
                                   iso
ge-3/1/5.200            up    up   inet     211.136.1.61/30
                                   iso
ge-3/1/5.300            up    up   inet     211.136.1.69/30
                                   iso
ge-3/1/5.400            up    up   inet     211.136.1.37/30
                                   iso
ge-3/1/5.500            up    up   inet     211.136.1.45/30
                                   iso
ge-3/1/5.600            up    up   inet     211.136.1.53/30
                                   iso
ge-3/1/5.700            up    up   inet     211.136.1.77/30
                                   iso
ge-3/1/5.32767          up    up
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